Cookies help us run our site more efficiently.

By clicking “Accept”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. View our Privacy Policy for more information or to customize your cookie preferences.

These communities are unaware they’ve lived near toxic gas for decades. Why has no action been taken?

News Feed
Wednesday, April 23, 2025

In summary Five facilities near schools and houses in LA County fumigate produce shipped from overseas with methyl bromide. But the air agency doesn’t plan to monitor the air or take any immediate steps to protect people from the gas, which can damage lungs and cause neurological effects. In a quiet Compton neighborhood near the 710 freeway, children on a recent afternoon chased each other at Kelly Park after school. Parents watched their kids play, unaware of a potential threat to their health.  On the other side of the freeway, just blocks from the park and Kelly Elementary School, a fumigation company uses a highly toxic pesticide to spray fruits and vegetables.  The facility, Global Pest Management, has been emitting methyl bromide, which can cause lung damage and neurological health effects, into the air near the neighborhood for several decades.  Earlier this year, the South Coast Air Quality Management District asked the company — along with four other fumigation facilities in San Pedro and Long Beach — to provide data on their methyl bromide usage. But the air quality agency does not plan to install monitors in the communities that would tell residents exactly what is in their air, or hold community meetings to notify them of potential risks. Instead, the South Coast district has launched a preliminary screening of the five facilities to determine if a full assessment of health risks in the neighborhoods is necessary. But even if that analysis is conducted, the agency won’t require the companies to reduce emissions unless they reach concentrations three times higher than the amounts deemed a health risk under state guidelines, said Scott Epstein, the district’s planning and rules manager. Piedad Delgado, a mother picking up her daughter from the Compton school, said she “didn’t even know” that the hazardous chemical was being used nearby. When a CalMatters reporter told her about the fumigation plant, Delgado wondered if it was causing her daughter’s recent, mysterious bouts of headaches and nausea. “It’s concerning. We may be getting sick but we don’t know why,” she said. For about the past 30 years, the companies have sprayed methyl bromide on imported produce arriving at the ports of Los Angeles and Long Beach to kill harmful pests. Adults and children are shown after school at Kelly Elementary School in Compton, which is near a facility that uses a highly toxic fumigant, methyl bromide. Photo by Joel Angel Juarez for CalMatters Methyl bromide, which was widely used to treat soil on farm fields, has been banned worldwide for most uses since 2005 under a United Nations treaty that protects the Earth’s ozone layer. Exemptions are granted for fumigation of produce shipped from overseas. While little to no residue remains on the food, the gas is vented into the air where it is sprayed. State health officials have classified methyl bromide as a reproductive toxicant, which means it can harm babies exposed in the womb. With acute exposure, high levels can cause headaches, dizziness, nausea and difficulty breathing, while chronic exposure over a year or longer could cause more serious neurological effects, such as learning and memory problems, according to the California Air Resources Board. “It’s concerning. We may be getting sick but we don’t know why.”Piedad Delgado, Compton Resident State and local air quality officials are responsible for enforcing laws and regulations that protect communities from toxic air contaminants such as methyl bromide, while the Los Angeles County Agricultural Commissioner issues the permits to the fumigation companies. After CalMatters reported about the facilities last month, members of Congress representing the communities demanded “greater monitoring, transparency and oversight surrounding these fumigation facilities and their toxic emissions.” “We have serious concerns about the prevalent use of methyl bromide, a toxic pesticide, by container fumigation facilities in Los Angeles County,” U.S. Reps. Nanette Barragán, Maxine Waters and Robert Garcia wrote in an April 11 letter to state and local air regulators and county and federal agricultural officials.  “Several of these fumigation facilities are located close to homes, schools, parks, and other public spaces. Our communities deserve a greater understanding of the levels of toxic emissions from these facilities, the health risks from exposure to such emissions, and the oversight processes in place to ensure all protocols are maintained at these sites,” they wrote. “Our communities deserve a greater understanding of the levels of toxic emissions from these facilities, the health risks from exposure to such emissions, and the oversight processes in place.”U.S. Reps. Nanette Barragán, Maxine Waters and Robert Garcia Even though the San Pedro facility at the Port of Los Angeles and the Compton plant use the largest volumes of methyl bromide — a combined 52,000 pounds a year — the air in nearby communities has never been tested.  The two Long Beach facilities use much less, yet state tests in 2023 and 2024 detected potentially dangerous levels in a neighborhood near an elementary school. South Coast district officials said although certain levels of methyl bromide in the air could cause health effects, it doesn’t necessarily mean immediate action is necessary.  “We don’t want to go out and unnecessarily concern folks if there isn’t (a health concern), but we are actively investigating this right now,” said Sarah Rees, the South Coast district’s deputy executive office for planning, rule development and implementation.   Global Pest Management, which fumigates in Compton and Terminal Island, did not return calls from CalMatters. An employee at the facility declined to comment. A general manager at SPF Terminals in Long Beach also declined to comment.  Greg Augustine, owner of Harbor Fumigation in San Pedro, said his company has been permitted for more than 30 years and complies with all requirements. “To protect the health of our community, the air district establishes permit conditions and we comply with all of those permit conditions,” he said. “Those are vetted by the air district…and they’re all designed to protect the health of our community.”  “To protect the health of our community, the air district establishes permit conditions and we comply with all of those permit conditions.” Greg Augustine, owner of Harbor Fumigation in San Pedro Daniel McCarrel, an attorney representing AG-Fume Services, which fumigates at facilities in Long Beach and San Pedro, did not respond to questions but previously told CalMatters last month that the company is adhering to all of its permit conditions.  High levels found in Long Beach  Back in 2019, during regionwide testing, South Coast district officials detected methyl bromide in the air near the two West Long Beach facilities close to concentrations that could cause long-term health effects. The South Coast district took no action at the time — other than to publish a large study online of all toxic air contaminants throughout the four-county LA basin. Then, several years later, the state Air Resources Board found that the two facilities — SPF Terminals and AG-Fume Services — spewed high concentrations of methyl bromide at various times throughout the year. The state’s air monitor near Hudson Elementary School in West Long Beach — which is just about 1,000 feet from the two facilities — detected an average of 2.1 parts per billion in 2023 through part of 2024. Exposure to as little as 1 ppb for a year or more can cause serious nervous system effects as well as developmental effects on fetuses, according to state health guidelines. Spikes of methyl bromide were as high as 983 and 966 ppb in February and March of 2024. Short-term exposure to 1,000 ppb can cause acute health effects such as nausea, headaches and dizziness.  But state and district air-quality officials didn’t inform nearby residents about any of the monitoring data for longer than a year — not until three months ago, in a community meeting held in Long Beach.  First: Edvin Hernandez, right, waits to pick up his son at Kelly Elementary School in Compton, which is near a fumigation plant. Last: SPF Terminals in Long Beach uses methyl bromide. High levels of the gas were found near an elementary school in West Long Beach. Photos by Joel Angel Juarez and J.W. Hendricks for CalMatters Upon learning of the test results, the Los Angeles County Agricultural Commissioner a few months ago added new permit conditions for SPF Terminals and AG-Fume Services, including shutting doors, installing taller smokestacks and prohibiting fumigation during school hours, according to permits obtained by CalMatters. But the county permits for the three San Pedro and Compton facilities, which use much larger volumes of methyl bromide, remain unchanged, with none of the protections added to the Long Beach permits. And officials still have not held any community meetings there. The agricultural commissioner’s office declined to comment on the facilities. A complex web of ‘hot spots’ rules for methyl bromide About 38% of the methyl bromide used in California for commodity fumigation is in LA County, according to Department of Pesticide Regulation data for 2022. After many Long Beach residents expressed concerns, the South Coast district assessed all nine facilities permitted to use the chemical in the region and determined that five could pose a risk to residents.  Now the agency is going through a complex process outlined under the state’s Air Toxics “Hot Spots” law, enacted in 1987. Usage data, weather patterns and proximity to neighborhoods will be used to calculate a “priority score” for each of the five facilities. If a facility’s score is high enough, then the company will be required to conduct a full health risk assessment to examine the dangers to the community. None of the scores have been released yet. Risk assessments under the air district’s rules are a complicated, multi-step process likely to take many months. Smokestacks are shown at a facility that fumigates imported produce at the Port of Los Angeles in San Pedro. AG-Fume Services and Harbor Fumigation operate at this facility. Photo by Joel Angel Juarez for CalMatters And these health assessments may not trigger any changes at the facilities. It all depends on whether certain thresholds for hazards are crossed. The state Office of Environmental Health Hazard Assessment has set guidelines, called reference exposure levels, for concentrations of methyl bromide that could cause the long-term or short-term health effects, such as respiratory and neurological damage, nausea and fetal effects, based on human and animal studies. But South Coast district officials said action isn’t triggered if methyl bromide exceeds these reference levels. Instead, the district uses a state-created “hazard index” based on them. If a facility’s hazard index reaches one — which means concentrations outside the facility have reached the reference dose and could cause harm — the company must notify the public, under a South Coast district regulation. However, the facilities will only be required to take steps to reduce emissions if the hazard index reaches three — three times the reference level that indicates potential harm, according to that regulation. Expedited action is required under the rule if the index is five times higher.   “Just because it’s above the (reference level), it doesn’t mean it’s going to cause health impacts,” said Ian MacMillan, assistant deputy executive officer at the South Coast air district. He said the reference level indicates “there’s a possibility that there could be health impacts.”  The series of escalating thresholds is designed as a balancing act between regulating facilities and protecting the public, officials said. MacMillan also said methyl bromide emissions must be considered in the context of overall air quality in the region — the entire LA basin has an average hazard index of 5.5 when considering all sources of toxic air pollutants from industries and vehicles, he said. When told about the fumigation plants and lack of air testing and risk assessments, residents contacted by CalMatters were outraged. “There’s no interest from the government to protect our health,” said Edvin Hernandez, a father picking up his 9-year-old son from Kelly Elementary School in Compton. “We’re surviving by the hand of God.” The members of Congress — Barragán, Waters and Garcia — asked air regulators to install monitors near all Los Angeles County fumigation facilities, compile inspection records, conduct health assessments in the communities and provide all of the results on a public website.  “It is egregious that communities in California are still being impacted by this harmful and unnecessary chemical,” said Alison Hahm, a staff attorney with the Natural Resources Defense Council, which is working with community members. “In addition to stopping this ongoing public health threat in West Long Beach and Los Angeles, residents are demanding accountability and remedies for the harm endured.” The methyl bromide facilities in L.A. County are subjected to a different permitting process than elsewhere in California.  That’s because in 1996, the South Coast air district and the Los Angeles County Agricultural Commissioner agreed to share responsibility for regulating fumigating facilities. The agricultural office is tasked with issuing permits and the air agency is in charge of setting emissions limits and enforcing them.   In the Bay Area, the local air district has a similar agreement with agricultural departments that originated in 1997. However, the district decided that agreement is out of date so it is now issuing permits, too. One facility in the Bay Area uses the pesticide, Impact Transportation of Oakland. In 2019, the air district assessed the health risks of that facility and modeled how the fumes spread.   In the San Joaquin Valley, new facilities or those changing their methyl bromide use are subject to a health risk evaluation before a permit is issued. Facilities permitted before the air district was established in 1992 are subject to a review like the one that the South Coast district is now launching in San Pedro and Compton. The Los Angeles Agriculture Commissioner’s office, when asked whether it conducts a risk assessment before issuing permits, declined to answer any questions. CalMatters filed a public records request seeking risk assessments, but they said they had no records matching the request.   South Coast air regulators said they and the commissioner are now considering if any changes to their agreement should be made.  Allowed to use up to a half-ton of methyl bromide a day  Fumigation of produce using methyl bromide occurs within an enclosed facility, and the produce is covered by a tarp when sprayed. The fumes are then released into the atmosphere through tall smokestacks, a process called aeration. CalMatters filed a public records request with the county agricultural office and received the five facilities’ permits for 2023 through 2025. The permits show that the two Long Beach companies are now required to take an array of new precautions to limit fumes emitted into communities that the three Compton and San Pedro families are not — even though the Long Beach ones use much smaller volumes of methyl bromide. The San Pedro and Compton plants are allowed to use up to 1,000 pounds of methyl bromide in a 24-hour period. In contrast, the Long Beach plants can use up to 200 pounds in 24 hours, and in Oakland, Impact Transportation’s permit allows only 108 pounds.  First: Pallets of produce are piled up at the outer berths at the Port of Los Angeles in San Pedro. Last: A tarped area holds a tank that contains a hazardous gas, most likely methyl bromide. A fan and roof vents ventilated the area while garage doors were left open on April 8, 2025. AG-Fume Services and Harbor Fumigation operate at this location. Photos by Joel Angel Juarez for CalMatters The San Pedro and Compton facilities release fumes into the atmosphere during the daytime, except when they use an exhaust stack meeting certain height requirements, according to their permits. The two Long Beach facilities, SPF Terminals and AG Fume Services, have new, additional requirements this year: Fumigation can’t occur between 8:30 a.m. and 3:30 p.m. when a school is within 1,000 feet. And by the end of this month, they must replace their smokestacks with taller ones that are at least 55 feet tall, which disperse the fumes better. All doors must be closed during fumigation and aeration and fans must be used in the aeration process.  ‘We don’t have a choice’ At a ballpark on a recent day in San Pedro, Eastview Little League players took the field.  When a 13-year-old boy on the Pirates team was up to bat, his mom, Amy Shannon, cheered him on.  “Let’s go D! Deep breath boy, you got it!” she shouted.  Then she paused. Maybe she shouldn’t be encouraging her son to take a deep breath, she said. Shannon had just learned from CalMatters about the fumigation facility across the street from the baseball field. Amy Shannon, left, and Roxanne Gasparo, right, attend their children’s Little League game at Bloch Field near the Port of Los Angeles in San Pedro on April 8, 2025. Both women were unaware that a fumigation facility nearby has been using a toxic gas for about 30 years. Photo by Joel Angel Juarez for CalMatters At the facility where AG Fume and Harbor Fumigation operate, located at 2200 Miner Street, it was business as usual that day. A ship was docked on one side of the Los Angeles Port berth. On the other side, hundreds of stacks of fruits and vegetables were visible through several large garage doors.  Some of the stacks were covered with plastic. A tank containing a fumigant — labeled with a hazard sign depicting a skull — was hooked up outside. Yellow smokestacks protruded from the facility.  An AG-Fume Services truck was parked near one of the garage doors. Workers wearing yellow vests and sun-protective hats closed the garage doors, but left them slightly open at the bottom.  At the baseball field, Shannon watched the game with a friend, Roxanne Gasparo. Both women grew up in San Pedro. Gasparo said she wasn’t at all surprised to learn that a dangerous gas could be in their air.   “Because it’s a port town, unfortunately, we’re used to pollution. We have the port, obviously, and all the refineries next to us,” Gasparo said. “There’s really no way to get out of it unless you leave the city, and because most of the families here are blue collar families that rely on the unions, we kind of don’t have a choice,” she added. “We just deal with it and raise our kids the best we can.” More about air pollution in port communities ‘We should be in crisis mode’: Toxic fumigant could be seeping into these communities March 21, 2025March 26, 2025 Polluted communities hold their breath as companies struggle with California’s diesel truck ban December 10, 2024December 10, 2024

Five facilities near schools and houses in LA County fumigate produce shipped from overseas with methyl bromide. But the air agency doesn’t plan to monitor the air or take any immediate steps to protect people from the gas, which can damage lungs and cause neurological effects.

Two young baseball players wearing blue and white jerseys stand in their positions as they watch a batter get ready for a pitch during a game. Blue cranes from a nearby port can be seen in the distant background.

In summary

Five facilities near schools and houses in LA County fumigate produce shipped from overseas with methyl bromide. But the air agency doesn’t plan to monitor the air or take any immediate steps to protect people from the gas, which can damage lungs and cause neurological effects.

In a quiet Compton neighborhood near the 710 freeway, children on a recent afternoon chased each other at Kelly Park after school. Parents watched their kids play, unaware of a potential threat to their health. 

On the other side of the freeway, just blocks from the park and Kelly Elementary School, a fumigation company uses a highly toxic pesticide to spray fruits and vegetables. 

The facility, Global Pest Management, has been emitting methyl bromide, which can cause lung damage and neurological health effects, into the air near the neighborhood for several decades. 

Earlier this year, the South Coast Air Quality Management District asked the company — along with four other fumigation facilities in San Pedro and Long Beach — to provide data on their methyl bromide usage. But the air quality agency does not plan to install monitors in the communities that would tell residents exactly what is in their air, or hold community meetings to notify them of potential risks.

Instead, the South Coast district has launched a preliminary screening of the five facilities to determine if a full assessment of health risks in the neighborhoods is necessary. But even if that analysis is conducted, the agency won’t require the companies to reduce emissions unless they reach concentrations three times higher than the amounts deemed a health risk under state guidelines, said Scott Epstein, the district’s planning and rules manager.

Piedad Delgado, a mother picking up her daughter from the Compton school, said she “didn’t even know” that the hazardous chemical was being used nearby. When a CalMatters reporter told her about the fumigation plant, Delgado wondered if it was causing her daughter’s recent, mysterious bouts of headaches and nausea.

“It’s concerning. We may be getting sick but we don’t know why,” she said.

For about the past 30 years, the companies have sprayed methyl bromide on imported produce arriving at the ports of Los Angeles and Long Beach to kill harmful pests.

A person hold the hands of two young children as they are guided by a guard while crossing a street on their way to school.
Adults and children are shown after school at Kelly Elementary School in Compton, which is near a facility that uses a highly toxic fumigant, methyl bromide. Photo by Joel Angel Juarez for CalMatters

Methyl bromide, which was widely used to treat soil on farm fields, has been banned worldwide for most uses since 2005 under a United Nations treaty that protects the Earth’s ozone layer. Exemptions are granted for fumigation of produce shipped from overseas. While little to no residue remains on the food, the gas is vented into the air where it is sprayed.

State health officials have classified methyl bromide as a reproductive toxicant, which means it can harm babies exposed in the womb. With acute exposure, high levels can cause headaches, dizziness, nausea and difficulty breathing, while chronic exposure over a year or longer could cause more serious neurological effects, such as learning and memory problems, according to the California Air Resources Board.

“It’s concerning. We may be getting sick but we don’t know why.”

Piedad Delgado, Compton Resident

State and local air quality officials are responsible for enforcing laws and regulations that protect communities from toxic air contaminants such as methyl bromide, while the Los Angeles County Agricultural Commissioner issues the permits to the fumigation companies.

After CalMatters reported about the facilities last month, members of Congress representing the communities demanded “greater monitoring, transparency and oversight surrounding these fumigation facilities and their toxic emissions.”

“We have serious concerns about the prevalent use of methyl bromide, a toxic pesticide, by container fumigation facilities in Los Angeles County,” U.S. Reps. Nanette Barragán, Maxine Waters and Robert Garcia wrote in an April 11 letter to state and local air regulators and county and federal agricultural officials. 

“Several of these fumigation facilities are located close to homes, schools, parks, and other public spaces. Our communities deserve a greater understanding of the levels of toxic emissions from these facilities, the health risks from exposure to such emissions, and the oversight processes in place to ensure all protocols are maintained at these sites,” they wrote.

“Our communities deserve a greater understanding of the levels of toxic emissions from these facilities, the health risks from exposure to such emissions, and the oversight processes in place.”

U.S. Reps. Nanette Barragán, Maxine Waters and Robert Garcia

Even though the San Pedro facility at the Port of Los Angeles and the Compton plant use the largest volumes of methyl bromide — a combined 52,000 pounds a year — the air in nearby communities has never been tested. 

The two Long Beach facilities use much less, yet state tests in 2023 and 2024 detected potentially dangerous levels in a neighborhood near an elementary school.

South Coast district officials said although certain levels of methyl bromide in the air could cause health effects, it doesn’t necessarily mean immediate action is necessary. 

“We don’t want to go out and unnecessarily concern folks if there isn’t (a health concern), but we are actively investigating this right now,” said Sarah Rees, the South Coast district’s deputy executive office for planning, rule development and implementation.  

Global Pest Management, which fumigates in Compton and Terminal Island, did not return calls from CalMatters. An employee at the facility declined to comment. A general manager at SPF Terminals in Long Beach also declined to comment. 

Greg Augustine, owner of Harbor Fumigation in San Pedro, said his company has been permitted for more than 30 years and complies with all requirements.

“To protect the health of our community, the air district establishes permit conditions and we comply with all of those permit conditions,” he said. “Those are vetted by the air district…and they’re all designed to protect the health of our community.” 

“To protect the health of our community, the air district establishes permit conditions and we comply with all of those permit conditions.” 

Greg Augustine, owner of Harbor Fumigation in San Pedro

Daniel McCarrel, an attorney representing AG-Fume Services, which fumigates at facilities in Long Beach and San Pedro, did not respond to questions but previously told CalMatters last month that the company is adhering to all of its permit conditions. 

High levels found in Long Beach 

Back in 2019, during regionwide testing, South Coast district officials detected methyl bromide in the air near the two West Long Beach facilities close to concentrations that could cause long-term health effects. The South Coast district took no action at the time — other than to publish a large study online of all toxic air contaminants throughout the four-county LA basin.

Then, several years later, the state Air Resources Board found that the two facilities — SPF Terminals and AG-Fume Services — spewed high concentrations of methyl bromide at various times throughout the year.

The state’s air monitor near Hudson Elementary School in West Long Beach — which is just about 1,000 feet from the two facilities — detected an average of 2.1 parts per billion in 2023 through part of 2024. Exposure to as little as 1 ppb for a year or more can cause serious nervous system effects as well as developmental effects on fetuses, according to state health guidelines.

Spikes of methyl bromide were as high as 983 and 966 ppb in February and March of 2024. Short-term exposure to 1,000 ppb can cause acute health effects such as nausea, headaches and dizziness. 

But state and district air-quality officials didn’t inform nearby residents about any of the monitoring data for longer than a year — not until three months ago, in a community meeting held in Long Beach. 

Upon learning of the test results, the Los Angeles County Agricultural Commissioner a few months ago added new permit conditions for SPF Terminals and AG-Fume Services, including shutting doors, installing taller smokestacks and prohibiting fumigation during school hours, according to permits obtained by CalMatters.

But the county permits for the three San Pedro and Compton facilities, which use much larger volumes of methyl bromide, remain unchanged, with none of the protections added to the Long Beach permits. And officials still have not held any community meetings there.

The agricultural commissioner’s office declined to comment on the facilities.

A complex web of ‘hot spots’ rules for methyl bromide

About 38% of the methyl bromide used in California for commodity fumigation is in LA County, according to Department of Pesticide Regulation data for 2022.

After many Long Beach residents expressed concerns, the South Coast district assessed all nine facilities permitted to use the chemical in the region and determined that five could pose a risk to residents. 

Now the agency is going through a complex process outlined under the state’s Air Toxics “Hot Spots” law, enacted in 1987. Usage data, weather patterns and proximity to neighborhoods will be used to calculate a “priority score” for each of the five facilities.

If a facility’s score is high enough, then the company will be required to conduct a full health risk assessment to examine the dangers to the community. None of the scores have been released yet.

Risk assessments under the air district’s rules are a complicated, multi-step process likely to take many months.

A view of commercial buildings with white vents to filter out the air.
Smokestacks are shown at a facility that fumigates imported produce at the Port of Los Angeles in San Pedro. AG-Fume Services and Harbor Fumigation operate at this facility. Photo by Joel Angel Juarez for CalMatters

And these health assessments may not trigger any changes at the facilities. It all depends on whether certain thresholds for hazards are crossed.

The state Office of Environmental Health Hazard Assessment has set guidelines, called reference exposure levels, for concentrations of methyl bromide that could cause the long-term or short-term health effects, such as respiratory and neurological damage, nausea and fetal effects, based on human and animal studies.

But South Coast district officials said action isn’t triggered if methyl bromide exceeds these reference levels. Instead, the district uses a state-created “hazard index” based on them.

If a facility’s hazard index reaches one — which means concentrations outside the facility have reached the reference dose and could cause harm — the company must notify the public, under a South Coast district regulation. However, the facilities will only be required to take steps to reduce emissions if the hazard index reaches three — three times the reference level that indicates potential harm, according to that regulation. Expedited action is required under the rule if the index is five times higher.  

“Just because it’s above the (reference level), it doesn’t mean it’s going to cause health impacts,” said Ian MacMillan, assistant deputy executive officer at the South Coast air district. He said the reference level indicates “there’s a possibility that there could be health impacts.” 

The series of escalating thresholds is designed as a balancing act between regulating facilities and protecting the public, officials said.

MacMillan also said methyl bromide emissions must be considered in the context of overall air quality in the region — the entire LA basin has an average hazard index of 5.5 when considering all sources of toxic air pollutants from industries and vehicles, he said.

When told about the fumigation plants and lack of air testing and risk assessments, residents contacted by CalMatters were outraged.

“There’s no interest from the government to protect our health,” said Edvin Hernandez, a father picking up his 9-year-old son from Kelly Elementary School in Compton. “We’re surviving by the hand of God.”

The members of Congress — Barragán, Waters and Garcia — asked air regulators to install monitors near all Los Angeles County fumigation facilities, compile inspection records, conduct health assessments in the communities and provide all of the results on a public website. 

“It is egregious that communities in California are still being impacted by this harmful and unnecessary chemical,” said Alison Hahm, a staff attorney with the Natural Resources Defense Council, which is working with community members. “In addition to stopping this ongoing public health threat in West Long Beach and Los Angeles, residents are demanding accountability and remedies for the harm endured.”

The methyl bromide facilities in L.A. County are subjected to a different permitting process than elsewhere in California. 

That’s because in 1996, the South Coast air district and the Los Angeles County Agricultural Commissioner agreed to share responsibility for regulating fumigating facilities. The agricultural office is tasked with issuing permits and the air agency is in charge of setting emissions limits and enforcing them.  

In the Bay Area, the local air district has a similar agreement with agricultural departments that originated in 1997. However, the district decided that agreement is out of date so it is now issuing permits, too. One facility in the Bay Area uses the pesticide, Impact Transportation of Oakland. In 2019, the air district assessed the health risks of that facility and modeled how the fumes spread.  

In the San Joaquin Valley, new facilities or those changing their methyl bromide use are subject to a health risk evaluation before a permit is issued. Facilities permitted before the air district was established in 1992 are subject to a review like the one that the South Coast district is now launching in San Pedro and Compton.

The Los Angeles Agriculture Commissioner’s office, when asked whether it conducts a risk assessment before issuing permits, declined to answer any questions. CalMatters filed a public records request seeking risk assessments, but they said they had no records matching the request.  

South Coast air regulators said they and the commissioner are now considering if any changes to their agreement should be made. 

Allowed to use up to a half-ton of methyl bromide a day 

Fumigation of produce using methyl bromide occurs within an enclosed facility, and the produce is covered by a tarp when sprayed. The fumes are then released into the atmosphere through tall smokestacks, a process called aeration.

CalMatters filed a public records request with the county agricultural office and received the five facilities’ permits for 2023 through 2025. The permits show that the two Long Beach companies are now required to take an array of new precautions to limit fumes emitted into communities that the three Compton and San Pedro families are not — even though the Long Beach ones use much smaller volumes of methyl bromide.

The San Pedro and Compton plants are allowed to use up to 1,000 pounds of methyl bromide in a 24-hour period. In contrast, the Long Beach plants can use up to 200 pounds in 24 hours, and in Oakland, Impact Transportation’s permit allows only 108 pounds. 

The San Pedro and Compton facilities release fumes into the atmosphere during the daytime, except when they use an exhaust stack meeting certain height requirements, according to their permits.

The two Long Beach facilities, SPF Terminals and AG Fume Services, have new, additional requirements this year: Fumigation can’t occur between 8:30 a.m. and 3:30 p.m. when a school is within 1,000 feet. And by the end of this month, they must replace their smokestacks with taller ones that are at least 55 feet tall, which disperse the fumes better. All doors must be closed during fumigation and aeration and fans must be used in the aeration process. 

‘We don’t have a choice’

At a ballpark on a recent day in San Pedro, Eastview Little League players took the field.  When a 13-year-old boy on the Pirates team was up to bat, his mom, Amy Shannon, cheered him on. 

“Let’s go D! Deep breath boy, you got it!” she shouted. 

Then she paused. Maybe she shouldn’t be encouraging her son to take a deep breath, she said. Shannon had just learned from CalMatters about the fumigation facility across the street from the baseball field.

Two people sit in chairs next to two children as they watch a youth baseball game. The person at the center of the frame wears a black L.A. hat.
Amy Shannon, left, and Roxanne Gasparo, right, attend their children’s Little League game at Bloch Field near the Port of Los Angeles in San Pedro on April 8, 2025. Both women were unaware that a fumigation facility nearby has been using a toxic gas for about 30 years. Photo by Joel Angel Juarez for CalMatters

At the facility where AG Fume and Harbor Fumigation operate, located at 2200 Miner Street, it was business as usual that day. A ship was docked on one side of the Los Angeles Port berth. On the other side, hundreds of stacks of fruits and vegetables were visible through several large garage doors. 

Some of the stacks were covered with plastic. A tank containing a fumigant — labeled with a hazard sign depicting a skull — was hooked up outside. Yellow smokestacks protruded from the facility. 

An AG-Fume Services truck was parked near one of the garage doors. Workers wearing yellow vests and sun-protective hats closed the garage doors, but left them slightly open at the bottom. 

At the baseball field, Shannon watched the game with a friend, Roxanne Gasparo. Both women grew up in San Pedro. Gasparo said she wasn’t at all surprised to learn that a dangerous gas could be in their air.  

“Because it’s a port town, unfortunately, we’re used to pollution. We have the port, obviously, and all the refineries next to us,” Gasparo said.

“There’s really no way to get out of it unless you leave the city, and because most of the families here are blue collar families that rely on the unions, we kind of don’t have a choice,” she added. “We just deal with it and raise our kids the best we can.”

Read the full story here.
Photos courtesy of

Costa Rica Ghost Net Cleanup Saves Marine Life in Puntarenas

For the Oceans Foundation successfully completed the first stage of its ghost net rescue campaign in Costa de Pájaros, Puntarenas, removing approximately 15 tons of abandoned fishing nets from the seabed, enough to nearly fill a 20-ton truck, according to social media reports and foundation statements. The initiative aims to eliminate these silent killers that […] The post Costa Rica Ghost Net Cleanup Saves Marine Life in Puntarenas appeared first on The Tico Times | Costa Rica News | Travel | Real Estate.

For the Oceans Foundation successfully completed the first stage of its ghost net rescue campaign in Costa de Pájaros, Puntarenas, removing approximately 15 tons of abandoned fishing nets from the seabed, enough to nearly fill a 20-ton truck, according to social media reports and foundation statements. The initiative aims to eliminate these silent killers that harm marine life and promote sustainable fishing practices in Costa Rica’s coastal communities, a critical step toward preserving ourcountry’s rich biodiversity. Ghost nets are abandoned, lost, or discarded fishing gear that continue to trap marine life, such as fish, sea turtles, dolphins, and sharks, while damaging coral reefs and seagrass beds. Globally, an estimated 640,000 tons of ghost gear pollute the oceans, contributing to 10% of oceanic litter, according to the Food and Agriculture Organization. In Costa Rica, these nets threaten iconic species like the hawksbill turtle and disrupt artisanal fishing livelihoods, exacerbating ocean pollution and habitat loss. The cleanup effort united 20 artisanal fishing families, professional rescue divers, and more than 60 volunteers, showcasing community-driven conservation. The operation was led by Captain Gabriel Ramírez of UDIVE 506, with eight fishing boats navigating the Gulf of Nicoya’s challenging currents. Reportedly, organizations including the Parlamento Cívico Ambiental, ACEPESA, Coast Guard, Red Cross, IPSA, REX Cargo, and Cervecería y Bebidas San Roque provided logistical support, transportation, hydration, and assistance with sorting and processing the recovered nets. Marine Biology students from the National University (UNA) played a key role by preparing the nets for recycling, ensuring minimal environmental impact. “Each of us can contribute to the environment. This is not for me or for you—it’s for Costa Rica, for the planet, and for marine life,” said Jorge Serendero, Director of Fundación For the Oceans. This cleanup builds on Costa Rica’s leadership in marine conservation, with over 30% of its territorial waters protected as of 2021, a global benchmark. The foundation reported a tense moment when a diver became entangled in a drifting net due to strong currents. Thanks to the quick action of his colleagues, he was freed unharmed, underscoring the risks of such operations. This campaign highlights the power of collective action in protecting marine ecosystems, a priority for Costa Rica as it expands marine protected areas like Cocos Island. Fundación For the Oceans plans additional cleanups in 2025 to address ghost nets across Costa Rica’s Pacific coast. Interested individuals can contact For the Oceans Foundation at info@fortheoceansfoundation.org or +506 8875-9393 to volunteer, donate, or learn about upcoming initiatives to safeguard the oceans. The post Costa Rica Ghost Net Cleanup Saves Marine Life in Puntarenas appeared first on The Tico Times | Costa Rica News | Travel | Real Estate.

Commercial salmon season is shut down — again. Will California’s iconic fish ever recover?

While it’s an unprecedented third year in a row for no commercially caught salmon, brief windows will be allowed for sportsfishing in California.

In summary While it’s an unprecedented third year in a row for no commercially caught salmon, brief windows will be allowed for sportsfishing in California. Facing the continued collapse of Chinook salmon, officials today shut down California’s commercial salmon fishing season for an unprecedented third year in a row.  Under the decision by an interstate fisheries agency, recreational salmon fishing will be allowed in California for only brief windows of time this spring. This will be the first year that any sportfishing of Chinook has been allowed since 2022. Today’s decision by the Pacific Fishery Management Council means that no salmon caught off California can be sold to retail consumers and restaurants for at least another year. In Oregon and Washington, commercial salmon fishing will remain open, although limited. “From a salmon standpoint, it’s an environmental disaster. For the fishing industry, it’s a human tragedy, and it’s also an economic disaster,” said Scott Artis, executive director of the Golden State Salmon Association, an industry organization that has lobbied for river restoration and improved hatchery programs.  The decline of California’s salmon follows decades of deteriorating conditions in the waterways where the fish spawn each year, including the Sacramento and Klamath rivers. California’s salmon are an ecological icon and a valued source of food for Native American tribes. The shutdown also has an economic toll: It has already put hundreds of commercial fishers and sportfishing boat operators out of work and affected thousands of people in communities and industries reliant on processing, selling and serving locally caught salmon.  California’s commercial fishery has never been closed for three years in a row before.  Some experts fear the conditions in California have been so poor for so long that Chinook may never rebound to fishable levels. Others remain hopeful for major recovery if the amounts of water diverted to farms and cities are reduced and wetlands kept dry by flood-control levees are restored.  This year’s recreational season includes several brief windows for fishing, including a weekend in June and another in July, or a quota of 7,000 fish.   Jared Davis, owner and operator of the Salty Lady in Sausalito, one of dozens of party boats that take paying customers fishing, thinks it’s likely that this quota will be met on the first open weekend for recreational fishing, scheduled for June 7-8.   “Obviously, the pressure is going to be intense, so everybody and their mother is going to be out on the water on those days,” he said. “When they hit that quota, it’s done.” One member of the fishery council, Corey Ridings, voted against the proposed regulations after saying she was concerned that the first weekend would overshoot the 7,000-fish quota. Davis said such a miniscule recreational season won’t help boat owners like him recover from past closures, though it will carry symbolic meaning. “It might give California anglers a glimmer of hope and keep them from selling all their rods and buying golf clubs,” he said.  “It continues to be devastating. Salmon has been the cornerstone of many of our ports for a long time.”Sarah Bates, commercial fisher based in San Francisco Sarah Bates, a commercial fisher based at San Francisco’s Fisherman’s Wharf, said the ongoing closure has stripped many boat owners of most of their income.  “It continues to be devastating,” she said. “Salmon has been the cornerstone of many of our ports for a long time.” She said the shutdown also has trickle-down effects on a range of businesses that support the salmon fishery, such as fuel services, grocery stores and dockside ice machines. “We’re also seeing a sort of a third wave … the general seafood market for local products has tanked,” such as rockfish and halibut. She said that many buyers are turning to farmed and wild salmon delivered from other regions instead. Davis noted that federal emergency relief funds promised for the 2023 closure still have not arrived. “Nobody has seen a dime,” he said.  Fewer returning salmon Before the Gold Rush, several million Chinook spawned annually in the river systems of the Central Valley and the state’s northern coast. Through much of the 20th century, California’s salmon fishery formed the economic backbone of coastal fishing ports, with fishers using hook and line pulling in millions of pounds in good years.  But in 2024, just 99,274 fall-run Chinook — the most commercially viable of the Central Valley’s four subpopulations — returned to the Sacramento River and its tributaries, substantially lower than the numbers in 2023. In 2022, fewer than 70,000 returned, one of the lowest estimates ever. About 40,000 returned to the San Joaquin River. Fewer than 30,000 Chinook reached their spawning grounds in the Klamath River system, where the Hoopa, Yurok and Karuk tribes rely on the fish in years of abundance.  The decline of California’s salmon stems from nearly two centuries of damage inflicted on the rivers where salmon spend the first and final stages of their lives. Gold mining, logging and dam construction devastated watersheds. Levees constrained rivers, turning them into relatively sterile channels of fast-moving water while converting floodplains and wetlands into irrigated farmland.  Today, many of these impacts persist, along with water diversions, reduced flows and elevated river temperatures that frequently spell death for fertilized eggs and juvenile fish. The future of California salmon is murky Peter Moyle, a UC Davis fish biologist and professor emeritus, said recovery of self-sustaining populations may be possible in some tributaries of the Sacramento River.  “There are some opportunities for at least keeping runs going in parts of the Central Valley, but getting naturally spawning fish back in large numbers, I just can’t see it happening,” he said. Jacob Katz, a biologist with the group California Trout, holds out hope for a future of flourishing Sacramento River Chinook. “We could have vibrant fall-run populations in a decade,” he said.  That will require major habitat restoration involving dam removals, reconstruction of levee systems to revive wetlands and floodplains, and reduced water diversions for agriculture — all measures fraught with cost, regulatory constraints, and controversy.  “There are some opportunities for at least keeping (salmon) runs going in parts of the Central Valley, but getting naturally spawning fish back in large numbers, I just can’t see it happening.”Peter moyle, uc davis fish biologist State officials, recognizing the risk of extinction, have promoted salmon recovery as a policy goal for years. In early 2024, the Newsom administration released its California Salmon Strategy for a Hotter, Drier Future, a 37-page catalogue of proposed actions to mitigate environmental impacts and restore flows and habitat, all in the face of a warming environment.  Artis of Golden State Salmon Association said the state’s salmon strategy includes some important items but leaves out equally critical ones, like protecting minimum required flows for fish — what Artis said are threatened by proposed water projects endorsed by the Newsom administration. “It fails to include some of the upcoming salmon-killing projects that the governor is pushing like Sites Reservoir and the Delta tunnel, and it ignores the fact that the Voluntary Agreements are designed to allow massive diversions of water,” he said. Experts agree that an important key to rebuilding salmon runs is increasing the frequency and duration of shallow flooding in riverside riparian areas, or even fallow rice paddies — a program Katz has helped develop through his career.  On such seasonal floodplains, a shallow layer of water can help trigger an explosion of photosynthesis and food production, ultimately providing nutrition for juvenile salmon as they migrate out of the river system each spring.  Through meetings with farmers, urban water agencies and government officials, Rene Henery, California science director with Trout Unlimited, has helped draft an ambitious salmon recovery plan dubbed “Reorienting to Recovery.” Featuring habitat restoration, carefully managed harvests and generously enhanced river flows — especially in dry years — this framework, Henery said, could rebuild diminished Central Valley Chinook runs to more than 1.6 million adult fish per year over a 20-year period.  He said adversaries — often farmers and environmentalists — must shift from traditional feuds over water to more collaborative programs of restoring productive watersheds while maintaining productive agriculture. As the recovery needle for Chinook moves in the wrong direction, Katz said deliberate action is urgent.  “We’re balanced on the edge of losing these populations,” he said. “We have to go big now. We have no other option.” more about salmon ‘No way, not possible’: California has a plan for new water rules. Will it save salmon from extinction? by Alastair Bland December 16, 2024December 16, 2024 A third straight year with no California salmon fishing?  Early fish counts suggest it could happen by Alastair Bland October 30, 2024October 30, 2024

Weedkiller maker moves to settle suit over claims that its product causes Parkinson’s

Syngenta has been besieged by lawsuits from people claiming its product caused the neurological diseaseBesieged by thousands of lawsuits alleging that its paraquat weedkiller causes Parkinson’s disease, its manufacturer, Syngenta, has entered into an agreement aimed at settling large swaths of those claims.A court filing yesterday confirmed that a letter of agreement between the parties had been signed. In a court hearing on Tuesday, one of the lead plaintiff lawyers, Khaldoun Baghdadi, said the terms of the settlement should be completed within 30 days. Continue reading...

Besieged by thousands of lawsuits alleging that its paraquat weedkiller causes Parkinson’s disease, its manufacturer, Syngenta, has entered into an agreement aimed at settling large swaths of those claims.A court filing yesterday confirmed that a letter of agreement between the parties had been signed. In a court hearing on Tuesday, one of the lead plaintiff lawyers, Khaldoun Baghdadi, said the terms of the settlement should be completed within 30 days.Syngenta did not respond to a request for comment.The move to settle comes amid mounting calls from state and federal lawmakers to ban paraquat, and as growing numbers of Parkinson’s patients blame the company for not warning them of paraquat risks. Numerous scientific studies have linked Parkinson’s to exposure to paraquat, a weedkiller commonly used in agriculture, though Syngenta has said the weight of scientific evidence shows its pesticide does not cause the disease.In response to past reporting, the company said that no “peer-reviewed scientific publication has established a causal connection between paraquat and Parkinson’s disease”.The agreement would not resolve all of the cases filed in the United States against Syngenta, but could resolve the majority of them.As of mid-April, there were more than 5,800 active lawsuits pending in what is known as multidistrict litigation (MDL) being overseen by a federal court in Illinois. There were more than 450 other cases filed in California, and many more scattered in state courts around the country.The agreement notice applies to people whose lawsuits are part of the MDL, and could provide settlements for plaintiffs in the cases outside the MDL as well, said Baghdadi.Syngenta’s effort to settle the litigation before any high-profile trials comes after Monsanto’s owner, Bayer, was rocked by similar litigation alleging its Roundup weedkiller causes cancer. After the company lost the first Roundup trial, its stock price plummeted, and Bayer has spent years and billions of dollars fighting to end the ongoing litigation.Lawyers for paraquat plaintiffs in cases outside the MDL expressed frustration with the situation, saying they were not included in the settlement discussions, and were not being given details about the settlement.They fear their cases may be delayed or otherwise negatively affected by a settlement that benefits some plaintiffs but may not actually provide value to the majority of them.“These plaintiffs are dying every day,” Majed Nachawati, a lawyer whose clients are outside the MDL, told a judge in a California court hearing on Tuesday on the matter. He said the news of the settlement was a “shock” because he was not apprised of the settlement negotiations by the other plaintiffs’ lawyers, as he should have been.Paraquat has become one of the most widely used weed-killing chemicals in the world. In the United States, the chemical is used in orchards, wheat fields, pastures where livestock graze, cotton fields and elsewhere.Internal Syngenta documents revealed by the Guardian and the New Lede show the company was aware many years ago of scientific evidence that paraquat could affect the brain in ways that cause Parkinson’s, and that it secretly sought to influence scientific research to counter the evidence of harm.This story is co-published with the New Lede, a journalism project of the Environmental Working Group

A New Bee Crisis Could Make Your Food Scarce and Expensive

Scientists are racing to stop a tiny mite that could devastate the pollinators and agriculture

Sammy Ramsey was having a hard time getting information. It was 2019, and he was in Thailand, researching parasites that kill bees. But Ramsey was struggling to get one particular Thai beekeeper to talk to him. In nearby bee yards, Ramsey had seen hives overrun with pale, ticklike creatures, each one smaller than a sharpened pencil point, scuttling at ludicrous speed. For each parasite on the hive surface, there were exponentially more hidden from view inside, feasting on developing bees. But this quiet beekeeper’s colonies were healthy. Ramsey, an entomologist, wanted to know why.The tiny parasites were a honeybee pest from Asia called tropilaelaps mites—tropi mites for short. In 2024 their presence was confirmed in Europe for the first time, and scientists are certain the mites will soon appear in the Americas. They can cause an epic collapse of honeybee populations that could devastate farms across the continent. Honeybees are essential agricultural workers. Trucked by their keepers from field to field, they help farmers grow more than 130 crops—from nuts to fruits to vegetables to alfalfa hay for cattle—worth more than $15 billion annually. If tropi mites kill those bees, the damage to the farm economy would be staggering.Other countries have already felt the effects of the mite. The parasites blazed a murderous path through Southeast Asia and India in the 1960s and 1970s. Because crops are smaller and more diverse there than in giant American farms, the economic effects of the mite were felt mainly by beekeepers, who experienced massive colony losses soon after tropilaelaps arrived. The parasite spread through northern Asia, the Middle East, Oceania and Central Asia. And now Europe. That sighting sounded alarms on this side of the Atlantic because the ocean won’t serve as a barrier for long. Mites can stow away on ships, on smuggled or imported bees. “The acceleration of the tropi mite’s spread has become so clear that no one can deny it’s gunning for us,” said Ramsey, now an assistant professor at the University of Colorado Boulder, on the Beekeeping Today podcast in 2023.On supporting science journalismIf you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.Ramsey, who is small and energetic like the creatures he studies, had traveled to Thailand in 2019 to gather information on techniques that the country’s beekeepers, who had lived with the mite for decades, were using to keep their bees alive. But the silent keeper he was interviewing was reluctant to share. Maybe the man feared this nosy foreigner would give away his beekeeping secrets—Ramsey didn’t know.But then the keeper’s son tapped his father on the shoulder. “I think that’s Black Thai,” he said, pointing at Ramsey. On his phone, the young man pulled up a video that showed Ramsey’s YouTube alter ego, “Black Thai,” singing a Thai pop song with a gospel lilt. Ramsey, who is Black—and “a scientist, a Christian, queer, a singer,” he says—had taught himself the language by binging Thai movies and music videos. Now that unusual hobby was coming in handy.Without bees the almond yield drops drastically. Other foods, such as apples, cherries, blueberries, and some pit fruits and vine fruits, are similarly dependent on bee pollination.The reticent keeper started to speak. “His face lit up,” Ramsey recalls. “He got really talkative.” The keeper described, in detail, the technique he was using to keep mite populations down. It involved an industrial version of a caustic acid naturally produced by ants. Ramsey thinks the substance might be a worldwide key to fighting the mite, a menace that is both tiny and colossal at the same time.Ramsey first saw a tropilaelaps mite in 2017, also in Thailand. He had traveled there to study another damaging parasite of honeybees, the aptly named Varroa destructor mites. But when he opened his first hive, he instead saw the stunning effect of tropilaelaps. Stunted bees were crawling across the hive frames, and the next-generation brood of cocooned pupae were staring out of their hexagonal cells in the hive with purple-pigmented eyes, exposed to the elements after their infested cell caps had been chewed away by nurse bees in a frenzy to defend the colony. At the hive entrances, bees were trembling on the ground or wandering in drunken circles. Their wings and legs were deformed, abdomens misshapen, and their bodies had a greasy sheen where hairs had worn off. The colony was doomed. “I was told there was no saving that one,” Ramsey says. He had never seen anything like it.When he got home, he started reading up on the mites. There was not much to read. Somewhere in Southeast Asia in the middle of the last century, two of four known species of tropilaelaps (Tropilaelaps mercedesae and T. clareae) had jumped to European honeybees from Apis dorsata, the giant honeybee with which it evolved in Asia. Parasites will not, in their natural settings, kill their hosts, “for the same reason you don’t want to burn your house down,” Ramsey said at a beekeeping conference in 2023. “You live there.”A tiny tropi mite (on bee at left) crawls on a bee.The giant honeybees in Asia, a species not used in commercial beekeeping, long ago had reached a mutual accommodation with the mites. But the European bees that Asian beekeepers raised to make honey were entirely naïve to the parasites. When the mites encountered one of those colonies, they almost always killed it. Because beekeepers cluster their beehives in apiaries, moving them en masse from one bee yard to the next, the mite could survive the loss of its host colony by jumping to a new one. “It would normally destroy itself,” Ramsey said at the conference, “if not for us.”Kept alive by human beekeepers, the mite moved through Asia, across the Middle East and, most recently, to the Ukraine-Russia border and to the country of Georgia. “It is westward expanding, it is eastward expanding, it is northward expanding,” says University of Alberta honeybee biologist Olav Rueppell. This move into Europe is ominous, Ramsey and Rueppell say. Canada has, in the past, imported queen bees from Ukraine. If the mite arrived in Canada on a Ukrainian bee, it could be a matter of only weeks or months before it crossed the northern U.S. border.Today between a quarter and half of U.S. bees die every year, forcing keepers to continually buy replacement “packages” of bees and queens to rebuild.The almond industry would be especially hard-hit by the mite. Two thirds of the national herd of commercial bees—about two million colonies—are trucked to California’s Central Valley every February to pollinate nearly 1.5 million acres of almond trees. Without bees the almond yield drops drastically. Other foods, such as apples, cherries, blueberries, and some pit fruits and vine fruits, are similarly dependent on bee pollination. We wouldn’t starve without them: corn, wheat and rice, for instance, are pollinated by wind. But fruits and nuts, as well as vegetables such as broccoli, carrots, celery, cucumbers and herbs, would become more scarce and more expensive. Because the cattle industry depends on alfalfa and clover for feed, beef and dairy products would also cost a lot more.Damage from tropilaelaps, many experts say, could vastly exceed the harm seen from its predecessor pest, the V. destructor mite. The varroa scourge arrived in the U.S. in 1987, when a Wisconsin beekeeper noticed a reddish-brown, ticklike creature riding on the back of one of his bees. Like tropilaelaps, varroa mites originated in Asia and then swept across the world. At first beekeepers were able to keep managed colonies alive with the help of easy-to-apply synthetic pesticides. But by 2005 the mites developed resistance to those chemicals, and beekeepers suffered the first wave of what has become a tsunami of losses. Today between a quarter and half of U.S. bees die every year, forcing keepers to continually buy replacement “packages” of bees and queens to rebuild. This past winter keepers saw average losses ranging upward of 70 percent. Scientists believe varroa mites are culprits in most of those losses, making bees susceptible to a variety of environmental insults, from mite-vectored viruses to fungal infections to pesticides. “In the old days we were shouting and swearing if we had an 8 percent dud rate; now people would be happy with that,” says beekeeper John Miller. He serves on the board of Project Apis m. (PAm), a bee-research organization that is a joint venture of the beekeeping and almond industries and was one of Ramsey’s early funders.When Ramsey joined the University of Maryland’s bee laboratory as a grad student in 2014, he began working on varroa. He discovered that the mites fed not on the bloodlike hemolymph of adult bees, as generations of scientists before him had assumed, but on “fat bodies,” organs similar to the liver. “For the past 70 years research done around varroa mites was based on the wrong information,” Ramsey says. (Recently published research indicates that the mites also feed on hemolymph while reproducing in a developing brood.)Ramsey’s finding helped to explain how varroa mites make the effects of all the other insults to honeybee health—pesticides, pathogens, poor nutrition—so much worse. Honeybees’ detoxification and immune systems reside in the fat bodies, which also store the nutrients responsible for growth and for protein and fat synthesis. Bees’ livers protect them from pesticides, Ramsey says. But when varroa mites attack honeybee livers, the pollinators succumb to pesticide exposures that would not ordinarily kill them.Entomologist Sammy Ramsey says such mites can destroy the American bee population.Now Ramsey is going after tropilaelaps as well as varroa mites. He continues his research into countermeasures and teaches both entomology and science communication classes in Boulder. In the years since he first sang as Black Thai, he has also become “Dr. Sammy,” a popular science communicator who is using his growing social media platform to sound the alarm about the parasites.In April 2024 I was watching him lead a graduate seminar when his watch chimed. “There’s a freezer alert in my lab,” he said. The temperature appeared to be off. We climbed the stairs to his lab overlooking the university’s soccer fields and examined the freezer, which didn’t seem to be in any immediate danger. Inside, stacked in boxes, lay an extensive archive of honeybees and mites that prey on them. Ramsey pulled out a tube of tropi mites.It was easy to see the enormity—or rather the minusculity—of the problem. The mites are about half a millimeter wide, one-third the size of varroa—“on the margins of what we are capable of seeing with the unassisted eye,” Ramsey says. Seen on video, they crawl so quickly that it looks as if the film speed has been doubled or tripled. Unlike varroa mites, which are brownish-red and relatively easy to spot, to the naked eye tropi mites are “almost devoid of color,” says Natasha Garcia-Andersen, a biologist for the city of Washington, D.C., who traveled to Thailand in January 2024 with a group of North American apiary inspectors to learn about the mites. “You see it, and you can’t tell—Is that a mite or dirt or debris?”Auburn University entomologist Geoff Williams led that Thailand mission. “There’s a decent chance that inspectors might be the first ones to identify a tropi mite in North America,” Williams says. The Thailand journey allowed them to see firsthand what they might soon be contending with. “It was eye-opening, watching these bee inspectors saying, ‘Holy crap, look at these tiny mites. How are you supposed to see that?’”Daniel P. Huffman; Source: Mallory Jordan and Stephanie Rogers, Auburn University. November 5, 2024, map hosted by Apiary Inspectors of America (reference); Data curated by: Rogan Tokach, Dan Aurell, Geoff Williams/Auburn University; Samantha Brunner/North Dakota Department of Agriculture; Natasha Garcia-­Andersen/District of Columbia Department of Energy and the EnvironmentRather than looking for the mites, Thai beekeepers diagnose tropilaelaps infestations by examining the state of their bees, says Samantha Muirhead, provincial apiculturist for the government of Alberta, Canada, and another of the inspectors on the Thailand expedition. “You see the damage,” she says—uncapped brood cells, chewed-up pupae, ailing adults. An unaccustomed North American beekeeper, however, would probably attribute the destruction to varroa mites. “You have to change the way you’re looking,” she says.Williams and his team at Auburn are also investigating alternative ways of detection. They are working to develop environmental DNA tests to identify the presence of tropilaelaps DNA in hives. Inspectors would swab the frames or bottom boards of “sentinel hives”—surveillance colonies—to detect an invasion. But any systematic monitoring for tropi mites using this kind of DNA is still years away.For now scientists are struggling to formulate a plan of action against a menace they don’t fully understand. “We have this huge void of knowledge,” says California beekeeper and researcher Randy Oliver. Scientists don’t know how the mites spread between colonies. Where do they go when colonies swarm? No one has any idea. Can they infect other vulnerable bee species? Do they feed on fat bodies, hemolymph, some combination of the two, or something else entirely? Studies show that tropi mites carry at least two of the same viruses as varroa mites. How many more might they carry? “Part of the rush to action now is the paucity of information,” Rueppell says.Existing varroa research does provide some knowledge by analogy, but there are several differences between the two mites. Varroa mite populations double in a month, for instance, but tropilaelaps populations do so in a matter of days. Varroa mites tend to bite their bee victims only once; tropi mites feed from multiple entry wounds, creating disabling scar tissue. And for many years scientists thought tropi mites couldn’t survive in colder climates like that of the northern U.S., because the parasites appeared to have a significant evolutionary disadvantage compared with varroa: Tropi mites can feed only on developing bees because their small mouths can’t penetrate adult bee exoskeletons. Queens stop laying eggs in cold weather, so in theory tropi mites shouldn’t have enough food to last the winter. But about a decade ago the mites were found in colder regions of Korea—and then in northern China and Georgia. “We thought they wouldn’t survive in colonies that overwinter,” says Jeff Pettis, a former U.S. Department of Agriculture research scientist who now heads Apimondia, an international beekeeping federation. “We know they get through the winter now,” he says. Scientists just don’t know how.“It’s worse than varroa, and I don’t think we’ll ever be prepared fully.” —John Miller, beekeeperOne theory is that the mites disperse onto mice or rats that move into beehives during the cold months—the 1961 paper that first described tropilaelaps noted there were mites on rats in the Philippines. Scientists are exploring other overwintering theories as well. Perhaps the mites feed for brief, broodless periods on other pests in the hive, such as hive beetles and wax moths.Another possibility, highlighted by Williams’s recent research, is that more bee larvae may persist in colder climates than previously thought, perhaps enough to feed the mites. His team has found small amounts of brood snug in wax-covered cells in hives as far north as New York State and Oregon in the winter. “My gut feeling is that these colonies might have a little bit of brood through the winter,” Williams says.In 2022 Ramsey returned to Thailand and set up several research apiaries for what he calls his “Fight the Mite” initiative, testing different treatments to kill tropi mites. It isn’t easy. Whereas varroa mites live on adult bees for much of their life cycle, tropi mites live mostly inside brood cells, safe from most pesticides, which can’t penetrate the wax-capped hexagons.A close-up view of a tropi mite.But Ramsey learned from the Thai beekeepers he met on his 2019 visit that many of them had been using formic acid, the compound produced by ants that can get into capped cells. The beekeepers had been dipping paint stirrers in industrial-grade cans of the stuff and sticking the blades under hive entrances. Fumes then seeped through the wax caps and killed the mites. Ramsey experimented with various formulations and applications in 2022 and found that this method worked, although the chemical is highly volatile, caustic and difficult to apply. It’s hard on both bees and beekeepers. “Heat treatments”—heating hives to more than 100 degrees Fahrenheit for two-plus hours—also took a dent out of mite populations in Ramsey’s tests.Williams, meanwhile, has been studying “cultural techniques” for controlling the mites, such as strategic breaks in brood cycles. Beekeepers in Thailand typically keep fewer bees in relatively small colonies, much tinier than the thousands or tens of thousands that some North American commercial outfits maintain. And when mite loads get bad, some Thai beekeepers also will discard their brood completely and start over. “They’re not afraid to quite literally throw away brood frames when they have mites,” Williams says.These strategies are difficult to apply at the scale of North American industrial apiculture. But large commercial outfits, which can keep anywhere from dozens to tens of thousands of colonies, may be able to adopt other tactics such as “indoor shedding”—storing all their hives in refrigerated sheds for a number of weeks to force an extended brood break. It’s likely that an effective approach will employ not one silver bullet but rather some combination of strategies—chemicals, heat, brood breaks—to avoid developing resistance. “You want to be able to rotate treatments to pound away at the mite,” Oliver says.Honeybees crawl over a comb of hexagonal hive cells, some filled with honey and pollen.These different techniques highlight the need for both varied approaches and, Ramsey believes, a varied group of scientists attacking the problem. “To study insects is to study diversity,” Ramsey says. “It is not a glitch in biology that the most successful group of animals on this planet is the most diverse group of animals. One of the key features of diversity is the capacity to solve problems in different ways.” To stave off the tropi mite, scientists will need to attack the problem from every angle they can conceive.On an afternoon in late May 2024, Ramsey, clad in a protective suit, opened a test hive in a holding yard on the east side of Boulder. The last cold day of spring was behind us, and everything had come into bloom at once—a riot of flowering locust, linden, lilac; glowing hay fields; distant, rock-spiked mountains curving northward out of sight. Massive bumblebees flew from flower to flower on a black locust tree above us, hovering like dark blimps in the sky.These were supposed to be Ramsey’s “pampered” bees, a control group to compare with more infested hives. They had, of course, been spared the ravages of tropi mites, which were still an ocean away. But they had been given frequent treatments for varroa mites. On the first frame Ramsey pulled, however, he saw sick bees everywhere. “This young lady clearly has a virus,” he said, noting a female’s “greasy,” prematurely bald abdomen. He pointed to a sinister dot the color of dried blood between another bee’s wings: a varroa mite. The bees were cranky, swooping and dive-bombing, and there weren’t enough brood cells on the frame. Ramsey sang to the bees in his gospel-tinged tenor, puffing at the hive with his smoker. “It seems like some of our best treatments for varroa mite are failing,” he said, examining another frame.The American practice of beekeeping is built on abundance—stacks of bee boxes, fields of flowers, vats of honey, teeming hives and expanses of wax-capped brood. But in Thailand, where tropilaelaps has been established for decades, beekeeping often is an exercise in scarcity—small colonies, meager honey production, uncapped pupae. Beekeepers there think far less about varroa mites than they worry about tropilaelaps, which outcompeted varroa years ago.There are so many threats facing modern honeybees—a daunting diversity, and we are ready for none of them. In 2023 the Georgia Department of Agriculture confirmed the presence of the yellow-legged hornet—Vespa velutina—in the U.S. Like the northern giant “murder” hornet found in Washington State in 2019 and declared eradicated in the U.S. last year, the yellow-legged insect is a “terrible beast,” says PAm executive director Danielle Downey. It hovers in front of beehives—a behavior called hawking—and rips the heads, abdomens and wings from returning foragers like a hunter field-dressing game. Then the hornet takes the thorax back to its nest. When the hornet first arrived in Europe, beekeepers lost 50 to 80 percent of their colonies. “The thing eats everything. One nest can eat 25 pounds of insects,” Downey says. “We’ve identified a lot of problems. How many crises can we handle?”In the spring of 2024, when the research paper confirming tropi mites were in Europe was published, Canada suspended all imports of Ukrainian hives and queens. For now that means this route for the mite’s arrival in North America is off the table. But trade—legal or surreptitious—could start again, and with the mites’ ferocious reproduction rates, it takes only one female to infect an entire continent. So this reprieve is probably only temporary. “We know the pathway and the threat it poses,” Downey says.A beekeeper with an infestation could spread the mite across the continent within a year; beehive die-offs would probably begin several months later. “It’s worse than varroa, and I don’t think we’ll ever be prepared fully,” Miller says.But Ramsey and his colleagues are racing to make sure they know every option available to them—formic acid, heat treatments, rotation, brood breaks—so that when the tropilaelaps mite does, at last, inevitably arrive, they will be ready. Researchers and beekeepers, Ramsey says, are trying to murder these parasites.

Agriculture Department cancels $3B grant program for climate-friendly crops

The Trump administration canceled a $3.1 billion grant program for climate-friendly crops, the Agriculture Department announced Monday. In a press release, the department said that it was canceling Biden-era Partnerships for Climate-Smart Commodities, which funded 141 projects that sought to advance climate-friendly farming practices. Projects funded under the program supported things like planting cover crops, which...

The Trump administration canceled a $3.1 billion grant program for climate-friendly crops, the Agriculture Department announced Monday.  In a press release, the department said that it was canceling Biden-era Partnerships for Climate-Smart Commodities, which funded 141 projects that sought to advance climate-friendly farming practices. Projects funded under the program supported things like planting cover crops, which prevent soil erosion, and managing soil nutrients to minimize farming’s environmental impacts.  The Biden administration estimated that the program would reach more than 60,000 farms and cut more than 60 million metric tons of carbon dioxide — the equivalent of taking 12 million gas-powered cars off the road for a year. However, the Trump administration said that most of the projects “had sky-high administration fees which in many instances provided less than half of the federal funding directly to farmers.” It also said that “select projects” could continue if they can show that a “significant” amount of their funds will go to farmers. “The Partnerships for Climate-Smart Commodities initiative was largely built to advance the green new scam at the benefit of NGOs, not American farmers,” said Agriculture Secretary Brooke Rollins in a written statement.  “I have heard directly from our farmers that many of the USDA partnerships are overburdened by red tape, have ambiguous goals, and require complex reporting that push farmers onto the sidelines,” Rollins added.  The cancellation comes amid a broader effort from the Trump administration to axe funding for climate- and environment-related programs. 

Suggested Viewing

Join us to forge
a sustainable future

Our team is always growing.
Become a partner, volunteer, sponsor, or intern today.
Let us know how you would like to get involved!

CONTACT US

sign up for our mailing list to stay informed on the latest films and environmental headlines.

Subscribers receive a free day pass for streaming Cinema Verde.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.