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Across Farm Country, Fertilizer Pollution Impacts Not Just Health, but Water Costs, Too

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Wednesday, May 1, 2024

When Jeff Broberg and his wife, Erica, moved to their 170-acre bean and grain farm in Winona, Minnesota in 1986, their well water measured at 8.6 ppm for nitrates. These nitrogen-based compounds, common in agricultural runoff, are linked to multiple cancers and health issues for those exposed. Each year, the measurement in their water kept creeping up. In the late 1990s, Broberg decided it was time to source from elsewhere. He began hauling eight one-gallon jugs and two five-gallon jugs from his friend Mike’s house. That was his drinking water for the week. Six years ago, Broberg said, he was “getting too old to haul that water in the middle of the winter.” So, he installed his own reverse-osmosis water filtration system. The measurement of nitrates in his well has now reached up to 22 ppm. Post-filtration, the levels are almost nonexistent. Broberg, a retired geologist, has committed what he calls his “encore career” to advocating for clean water in Minnesota. He only leases out around 40 percent of his tillable land and has retired much of the rest due to groundwater pollution concerns. Almost one year ago, a group he co-founded, the Minnesota Well Owners Organization, joined other groups to petition the U.S. Environmental Protection Agency (EPA) to address groundwater contamination in southeast Minnesota. The EPA agreed, stating that “further action is needed to protect public health” and requested that the state create a plan for testing, education and supplying alternative drinking water to those most affected. Advocates in Wisconsin filed a petition, too. Last month, 13 separate groups in Iowa did the same. This advocacy comes in light of increased regional attention on nitrate pollution and its health effects. In Nebraska, researchers have connected high birth defect rates with exposure to water contaminated with nitrates. In Wisconsin, experts warn that exposure to nitrates can increase the risk of colon cancer. Access to clean water, as defined by the United Nations, is a human right. And yet many currently don’t have that right, even in a country where potable water is taken for granted. What’s more, the cost of clean water falls more heavily on less populated areas, where fewer residents shoulder the bill. A report by the Union of Concerned Scientists concluded that the cost for rural Iowa residents—who often live in areas with smaller, more expensive water systems—could be as much as $4,960 more per person per year to filter out nitrates from their water than their counterparts in cities like Des Moines. Nitrates are affecting water utilities from California to D.C., and the reason comes down to one major source: Agricultural runoff. Where The Trouble Begins: ‘A Leaky System’ The root of water-quality issues in the Midwest starts with its cropland drainage system, a network of underground, cylindrical tiles that drain excess water and nutrients from the land and funnel it downstream. Those tiles, which were first installed in the mid-1800s and have now largely been replaced with plastic pipes, ultimately allowed farmers to grow crops on land that was once too wet to farm. Lee Tesdell is the fifth generation to own his family’s 80-acre farm in Polk County, Iowa. Tesdell explained that when his European ancestors settled in the Midwest, they plowed the prairie and switched from deeply rooted perennial plants to shallow-rooted annual crops like wheat, oats, and corn instead. “Then we had more exposed soil and less water infiltration because the roots weren’t as deep,” he said. “The annual crops and drainage tile started to create this leaky system.” This “leaky system” refers to what is not absorbed by the crops on the field, most dangerously, in this case, fertilizer. “It’s a leaky system because it’s not in sync,” said Iowa water quality expert Chris Jones, author of The Swine Republic book (and blog).  “And farmers know they’re going to lose some fertilizer. As a consequence, they apply extra as insurance.” Fertilizer as Poison The U.S. is the top corn-producing country in the world, with states like Iowa, Illinois, Nebraska, and Minnesota supplying 32 percent of corn globally. Corn produces lower yields if it is nitrogen deficient, so farmers apply nitrogen-heavy fertilizer to the crop. In fact, they must use fertilizer in order to qualify for crop insurance. The ammonia in the fertilizer oxidizes existing nitrogen in the soil, turning it into highly water-soluble nitrates that aren’t fully absorbed by the corn. Those nitrates leak into aquifers. In 1960, farmers used approximately 3 million tons of nitrogen fertilizer a year. In 2021, that number was closer to 19 million. Farmers can use a nitrogen calculator to determine how much nitrogen they need—but nearly 70 percent of farmers use more than the recommended amount. “Other people also have an American dream, and they want to be able to turn on their faucet and have clean water, or know that if they put their baby in a bath, they’re not going to end up in the hospital with major organs shutting down because they have been poisoned.” As Jones explains in his blog, even with “insurance” fertilizer use, yields can often turn out the same: “What happened to that extra 56 pounds of nitrogen that you bought? Well, some might’ve ended up sequestered in the soil, but a lot of it ran off into lakes and streams or leached down into the aquifer (hmm, do you reckon that’s why the neighbor’s well is contaminated?), and some off-gassed to the atmosphere as nitrous oxide, a substance that has 300 times more warming potential than carbon dioxide.” Commercial fertilizer is just one contributor to high nitrate levels in groundwater. The other main factor, manure, is also increasing as CAFOs become more prevalent. Nancy Utesch and her husband, Lynn, live on 150 acres of land in Kewaunee County, Wisconsin, where they rotationally graze beef cattle. In 2004, a family nearby became very ill from E. coli poisoning in their water. “I was really upset that this had happened in our county,” she said. “A lot of the support was for the polluting farmer, and you know, farming is right there with the American flag and grandma’s apple pie.” Utesch worries that the current system of industrialized agriculture has created a world where people living closest to the polluters do not have access to clean water themselves, and are afraid to speak out against the actions of their neighbors. “Other people also have an American dream, and they want to be able to turn on their faucet and have clean water, or know that if they put their baby in a bath, that they’re not going to end up in the hospital with major organs shutting down because they have been poisoned,” she said. “If they clean a scrape because their grandchild fell down in the driveway, they could be hurting them if they use the water from the tap.” The Plight of the Small Town In June 2022, fertilizer runoff pushed Des Moines Water Works, the municipal agency charged with overseeing drinking water, to restart operations of their nitrate removal system—one of the largest in the world—at a cost of up to $16,000 per day. Des Moines finances its removal system from its roughly 600,000 ratepayers. “Financially, Des Moines can spread out needed treatment over many thousands of customers, whereas a small town can’t do that,” Jones said. “If you have a small town of 1,000 people, your well gets contaminated, and you need a $2 million treatment plan to clean up the water, that’s a burden.” “Financially, Des Moines can spread out needed treatment over many thousands of customers, whereas a small town can’t do that.” While cities like Des Moines are willing to pay the cost to remove nitrates, other small communities will have a tougher time doing so. And once their aquifer is contaminated, “it doesn’t go away for a long time, in some cases, thousands of years,” Jones said. Utica, Minnesota, which has fewer than 300 residents, has two deep wells, both measuring at unsafe levels for nitrates. “[Residents are] scared to death,” Broberg, who lives in a neighboring town, said. “The city has investigated water treatment expenses at around $3 million for reverse osmosis, and they only last 10 years. A town of 85 households can’t amortize that debt by themselves.” The town has applied for a grant from the state and is waiting to hear back. Another nearby town, Lewiston, dug a new, deeper well to solve their nitrate problem. “They went down there, and the water was contaminated with radium. It’s radioactive,” Broberg said. “So they kept their nitrate-contaminated well and their radium-contaminated well and blended the water so that it doesn’t exceed the health risk limit for either nitrates or radium.” However, as Chris Rogers reported in the Winona Post, that plan didn’t quite work. Thus, Lewiston dug another well at a cost of $904,580, and is now sourcing all of their water from that new well. That well is now testing trace amounts of nitrates and has less radium than before. Many rural residents also rely on private, personal well systems, which aren’t regulated for contaminants, to source their water. Forty million people rely on well water nationwide. “Public water systems have these maximum contaminant levels that are set by the EPA. There are rules and regulations that they have to follow, but private wells aren’t covered by the Safe Drinking Water Act,” said Stacy Woods, research director of the food and environment program at the Union of Concerned Scientists. “It’s really on individual well owners to decide whether to test their wells and what contaminants to test their wells for, and these tests can be really expensive.” Broberg and his group are working to extend the protection of the Safe Drinking Water Act to well water. In southeast Minnesota, the EPA agreed to the plan, though the path forward is still uncertain as funding packages move through the legislature. “I’ve spoken with people who simply don’t want to test their well water because they can’t afford to do much about it if they find out that their nitrate levels are unsafe.” Without these protections in place, or intervention at the pollution source, rural residents often find the responsibility of clean water falling on them. “I’ve spoken with people who simply don’t want to test their well water because they can’t afford to do much about it if they find out that their nitrate levels are unsafe,” Food and Water Watch Legal Director Tarah Heinzen said. “They are basically powerless to protect their drinking water resources from sources of pollution that aren’t being adequately regulated by the state.” The solution, according to Woods, “is to protect the drinking water sources from that pollution in the first place.” Conservation on the Farm One way to do this is by using less fertilizer on the field. Another is to introduce on-the-field and edge-of-field conservation practices, like Tesdell is doing on his Iowa family farm. Tesdell’s farm is not the typical Iowa farm, which averages 359 acres. Tesdell’s is 80. He does, however, rent 50 acres to a neighbor who grows corn and soybeans, like most Iowa farmers. Where Tesdell’s farm differs is how he deals with excess nitrate. In 2012, Tesdell, who has always been drawn to conservation, became interested in adding cover cropping to his fields. Through his research, he came across other conservation practices such as wood chip bioreactors. He installed his first bioreactor that same year. “There’s a chemical and biological reaction between the wood chips and the nitrate in the tile water,” Tesdell said. “Much of the nitrate then is turned into nitrogen gas, which is a harmless gas. We don’t take out 100 percent of the nitrate, but we take out a good percentage.” According to Iowa State University, a typical bioreactor costs around $10,000 to design and install. Tesdell paid for his bioreactor partly out of pocket, but also acquired funding from the Iowa Soybean Association. For his saturated buffer, an edge-of-field practice that redirects excess nitrates through vegetation, Tesdell received funding from the USDA’s Environmental Quality Incentives Program (EQIP). To install the saturated buffer, Tesdell needed his neighbor to agree. “We put that one on a tile that actually comes from my neighbor’s farm. Because the creek is going through my farm, it’s a more direct route to come off a hill [on] his farm,” he said. “Neighbors need to work together.” Roughly 80 percent of the farmland in Iowa is owned by offsite landlords, who rent it out to farmers. Tesdell cites this as  a roadblock to conservation practices. “If the landowner doesn’t care, why would an operator care? They want to pull in with their 24-row planter, plant their corn, come in with the 12-row corn head in October and harvest, then truck it off to the ethanol plant,” he said. “I don’t blame them.” Iowa currently has a “Nutrient Reduction Strategy” plan, which outlines voluntary efforts farmers can take to reduce their pollution. There is no active legislation that limits how much fertilizer farmers use on their cropland. Heinzen, of Food and Water Watch, explained that agricultural pollution is largely unregulated, with the exception of concentrated animals feeding operations (CAFOs).  “In fact, even most CAFOs are completely unregulated, because EPA has completely failed to implement Congress’s intent to regulate this industry, which we’re suing them over,” she said, referring to a new brief filed by multiple advocacy groups in February aimed at upgrading CAFO pollution regulation. Even Des Moines Waterworks, with its state-of-the-art nitrate removal facility, is calling for change. “We cannot keep treating water quality only at the receiving end,” spokesperson Melissa Walker said. “There needs to be a plan for every acre of farmland in Iowa and how its nutrients will be managed, as well as every animal and its manure.” “You’re either going to have to change your practices, change your farming, or you’re going to have the accept the risk of preventable disease.” Some communities have sued for damages related to nitrate-contaminated groundwater. In Millsboro, Delaware, residents received a payout but still have contaminated water. In Boardman, Oregon, five residents are suing the Port of Morrow and multiple farms and CAFOs due to their well-water testing “at more than four times the safe limit established by the U.S. EPA,” Alex Baumhardt reported in the Oregon Capital Chronicle. A few weeks ago, 1,500 tons of liquid nitrogen were spilled into an Iowa river. No living fish were found nearby. Today, polluted water flows downstream into the Gulf of Mexico, where it causes “dead zones” stripped of marine life. “You’re either going to have to change your practices, change your farming, or you’re going to have the accept the risk of preventable disease,” Broberg said. “And you need to put that equation in your family budget. If you’re going to get bladder cancer, diabetes, birth defects, juvenile cancers—what are those going to cost?” When asked why protecting water is so important, Tesdell paused and looked away. His voice cracked with emotion. “It’s for the grandkids.” The post Across Farm Country, Fertilizer Pollution Impacts Not Just Health, but Water Costs, Too appeared first on Civil Eats.

In the late 1990s, Broberg decided it was time to source from elsewhere. He began hauling eight one-gallon jugs and two five-gallon jugs from his friend Mike’s house. That was his drinking water for the week. Six years ago, Broberg said, he was “getting too old to haul that water in the middle of the […] The post Across Farm Country, Fertilizer Pollution Impacts Not Just Health, but Water Costs, Too appeared first on Civil Eats.

When Jeff Broberg and his wife, Erica, moved to their 170-acre bean and grain farm in Winona, Minnesota in 1986, their well water measured at 8.6 ppm for nitrates. These nitrogen-based compounds, common in agricultural runoff, are linked to multiple cancers and health issues for those exposed. Each year, the measurement in their water kept creeping up.

In the late 1990s, Broberg decided it was time to source from elsewhere. He began hauling eight one-gallon jugs and two five-gallon jugs from his friend Mike’s house. That was his drinking water for the week.

Six years ago, Broberg said, he was “getting too old to haul that water in the middle of the winter.” So, he installed his own reverse-osmosis water filtration system. The measurement of nitrates in his well has now reached up to 22 ppm. Post-filtration, the levels are almost nonexistent.

Broberg, a retired geologist, has committed what he calls his “encore career” to advocating for clean water in Minnesota. He only leases out around 40 percent of his tillable land and has retired much of the rest due to groundwater pollution concerns. Almost one year ago, a group he co-founded, the Minnesota Well Owners Organization, joined other groups to petition the U.S. Environmental Protection Agency (EPA) to address groundwater contamination in southeast Minnesota.

The EPA agreed, stating that “further action is needed to protect public health” and requested that the state create a plan for testing, education and supplying alternative drinking water to those most affected. Advocates in Wisconsin filed a petition, too. Last month, 13 separate groups in Iowa did the same.

This advocacy comes in light of increased regional attention on nitrate pollution and its health effects. In Nebraska, researchers have connected high birth defect rates with exposure to water contaminated with nitrates. In Wisconsin, experts warn that exposure to nitrates can increase the risk of colon cancer.

Access to clean water, as defined by the United Nations, is a human right. And yet many currently don’t have that right, even in a country where potable water is taken for granted. What’s more, the cost of clean water falls more heavily on less populated areas, where fewer residents shoulder the bill. A report by the Union of Concerned Scientists concluded that the cost for rural Iowa residents—who often live in areas with smaller, more expensive water systems—could be as much as $4,960 more per person per year to filter out nitrates from their water than their counterparts in cities like Des Moines. Nitrates are affecting water utilities from California to D.C., and the reason comes down to one major source: Agricultural runoff.

Where The Trouble Begins: ‘A Leaky System’

The root of water-quality issues in the Midwest starts with its cropland drainage system, a network of underground, cylindrical tiles that drain excess water and nutrients from the land and funnel it downstream. Those tiles, which were first installed in the mid-1800s and have now largely been replaced with plastic pipes, ultimately allowed farmers to grow crops on land that was once too wet to farm.

Lee Tesdell is the fifth generation to own his family’s 80-acre farm in Polk County, Iowa. Tesdell explained that when his European ancestors settled in the Midwest, they plowed the prairie and switched from deeply rooted perennial plants to shallow-rooted annual crops like wheat, oats, and corn instead.

“Then we had more exposed soil and less water infiltration because the roots weren’t as deep,” he said. “The annual crops and drainage tile started to create this leaky system.”

This “leaky system” refers to what is not absorbed by the crops on the field, most dangerously, in this case, fertilizer.

“It’s a leaky system because it’s not in sync,” said Iowa water quality expert Chris Jones, author of The Swine Republic book (and blog).  “And farmers know they’re going to lose some fertilizer. As a consequence, they apply extra as insurance.”

Fertilizer as Poison

The U.S. is the top corn-producing country in the world, with states like Iowa, Illinois, Nebraska, and Minnesota supplying 32 percent of corn globally. Corn produces lower yields if it is nitrogen deficient, so farmers apply nitrogen-heavy fertilizer to the crop. In fact, they must use fertilizer in order to qualify for crop insurance. The ammonia in the fertilizer oxidizes existing nitrogen in the soil, turning it into highly water-soluble nitrates that aren’t fully absorbed by the corn. Those nitrates leak into aquifers.

In 1960, farmers used approximately 3 million tons of nitrogen fertilizer a year. In 2021, that number was closer to 19 million. Farmers can use a nitrogen calculator to determine how much nitrogen they need—but nearly 70 percent of farmers use more than the recommended amount.

“Other people also have an American dream, and they want to be able to turn on their faucet and have clean water, or know that if they put their baby in a bath, they’re not going to end up in the hospital with major organs shutting down because they have been poisoned.”

As Jones explains in his blog, even with “insurance” fertilizer use, yields can often turn out the same: “What happened to that extra 56 pounds of nitrogen that you bought? Well, some might’ve ended up sequestered in the soil, but a lot of it ran off into lakes and streams or leached down into the aquifer (hmm, do you reckon that’s why the neighbor’s well is contaminated?), and some off-gassed to the atmosphere as nitrous oxide, a substance that has 300 times more warming potential than carbon dioxide.”

Commercial fertilizer is just one contributor to high nitrate levels in groundwater. The other main factor, manure, is also increasing as CAFOs become more prevalent.

Nancy Utesch and her husband, Lynn, live on 150 acres of land in Kewaunee County, Wisconsin, where they rotationally graze beef cattle. In 2004, a family nearby became very ill from E. coli poisoning in their water.

“I was really upset that this had happened in our county,” she said. “A lot of the support was for the polluting farmer, and you know, farming is right there with the American flag and grandma’s apple pie.”

Utesch worries that the current system of industrialized agriculture has created a world where people living closest to the polluters do not have access to clean water themselves, and are afraid to speak out against the actions of their neighbors.

“Other people also have an American dream, and they want to be able to turn on their faucet and have clean water, or know that if they put their baby in a bath, that they’re not going to end up in the hospital with major organs shutting down because they have been poisoned,” she said. “If they clean a scrape because their grandchild fell down in the driveway, they could be hurting them if they use the water from the tap.”

The Plight of the Small Town

In June 2022, fertilizer runoff pushed Des Moines Water Works, the municipal agency charged with overseeing drinking water, to restart operations of their nitrate removal system—one of the largest in the world—at a cost of up to $16,000 per day. Des Moines finances its removal system from its roughly 600,000 ratepayers.

“Financially, Des Moines can spread out needed treatment over many thousands of customers, whereas a small town can’t do that,” Jones said. “If you have a small town of 1,000 people, your well gets contaminated, and you need a $2 million treatment plan to clean up the water, that’s a burden.”

“Financially, Des Moines can spread out needed treatment over many thousands of customers, whereas a small town can’t do that.”

While cities like Des Moines are willing to pay the cost to remove nitrates, other small communities will have a tougher time doing so. And once their aquifer is contaminated, “it doesn’t go away for a long time, in some cases, thousands of years,” Jones said.

Utica, Minnesota, which has fewer than 300 residents, has two deep wells, both measuring at unsafe levels for nitrates.

“[Residents are] scared to death,” Broberg, who lives in a neighboring town, said. “The city has investigated water treatment expenses at around $3 million for reverse osmosis, and they only last 10 years. A town of 85 households can’t amortize that debt by themselves.”

The town has applied for a grant from the state and is waiting to hear back.

Another nearby town, Lewiston, dug a new, deeper well to solve their nitrate problem.

“They went down there, and the water was contaminated with radium. It’s radioactive,” Broberg said. “So they kept their nitrate-contaminated well and their radium-contaminated well and blended the water so that it doesn’t exceed the health risk limit for either nitrates or radium.”

However, as Chris Rogers reported in the Winona Post, that plan didn’t quite work. Thus, Lewiston dug another well at a cost of $904,580, and is now sourcing all of their water from that new well. That well is now testing trace amounts of nitrates and has less radium than before.

Many rural residents also rely on private, personal well systems, which aren’t regulated for contaminants, to source their water. Forty million people rely on well water nationwide.

“Public water systems have these maximum contaminant levels that are set by the EPA. There are rules and regulations that they have to follow, but private wells aren’t covered by the Safe Drinking Water Act,” said Stacy Woods, research director of the food and environment program at the Union of Concerned Scientists. “It’s really on individual well owners to decide whether to test their wells and what contaminants to test their wells for, and these tests can be really expensive.”

Broberg and his group are working to extend the protection of the Safe Drinking Water Act to well water. In southeast Minnesota, the EPA agreed to the plan, though the path forward is still uncertain as funding packages move through the legislature.

“I’ve spoken with people who simply don’t want to test their well water because they can’t afford to do much about it if they find out that their nitrate levels are unsafe.”

Without these protections in place, or intervention at the pollution source, rural residents often find the responsibility of clean water falling on them.

“I’ve spoken with people who simply don’t want to test their well water because they can’t afford to do much about it if they find out that their nitrate levels are unsafe,” Food and Water Watch Legal Director Tarah Heinzen said. “They are basically powerless to protect their drinking water resources from sources of pollution that aren’t being adequately regulated by the state.”

The solution, according to Woods, “is to protect the drinking water sources from that pollution in the first place.”

Conservation on the Farm

One way to do this is by using less fertilizer on the field. Another is to introduce on-the-field and edge-of-field conservation practices, like Tesdell is doing on his Iowa family farm.

Tesdell’s farm is not the typical Iowa farm, which averages 359 acres. Tesdell’s is 80. He does, however, rent 50 acres to a neighbor who grows corn and soybeans, like most Iowa farmers.

Where Tesdell’s farm differs is how he deals with excess nitrate. In 2012, Tesdell, who has always been drawn to conservation, became interested in adding cover cropping to his fields. Through his research, he came across other conservation practices such as wood chip bioreactors. He installed his first bioreactor that same year.

“There’s a chemical and biological reaction between the wood chips and the nitrate in the tile water,” Tesdell said. “Much of the nitrate then is turned into nitrogen gas, which is a harmless gas. We don’t take out 100 percent of the nitrate, but we take out a good percentage.”

According to Iowa State University, a typical bioreactor costs around $10,000 to design and install. Tesdell paid for his bioreactor partly out of pocket, but also acquired funding from the Iowa Soybean Association. For his saturated buffer, an edge-of-field practice that redirects excess nitrates through vegetation, Tesdell received funding from the USDA’s Environmental Quality Incentives Program (EQIP). To install the saturated buffer, Tesdell needed his neighbor to agree.

“We put that one on a tile that actually comes from my neighbor’s farm. Because the creek is going through my farm, it’s a more direct route to come off a hill [on] his farm,” he said. “Neighbors need to work together.”

Roughly 80 percent of the farmland in Iowa is owned by offsite landlords, who rent it out to farmers. Tesdell cites this as  a roadblock to conservation practices.

“If the landowner doesn’t care, why would an operator care? They want to pull in with their 24-row planter, plant their corn, come in with the 12-row corn head in October and harvest, then truck it off to the ethanol plant,” he said. “I don’t blame them.”

Iowa currently has a “Nutrient Reduction Strategy” plan, which outlines voluntary efforts farmers can take to reduce their pollution. There is no active legislation that limits how much fertilizer farmers use on their cropland.

Heinzen, of Food and Water Watch, explained that agricultural pollution is largely unregulated, with the exception of concentrated animals feeding operations (CAFOs).  “In fact, even most CAFOs are completely unregulated, because EPA has completely failed to implement Congress’s intent to regulate this industry, which we’re suing them over,” she said, referring to a new brief filed by multiple advocacy groups in February aimed at upgrading CAFO pollution regulation.

Even Des Moines Waterworks, with its state-of-the-art nitrate removal facility, is calling for change.

“We cannot keep treating water quality only at the receiving end,” spokesperson Melissa Walker said. “There needs to be a plan for every acre of farmland in Iowa and how its nutrients will be managed, as well as every animal and its manure.”

“You’re either going to have to change your practices, change your farming, or you’re going to have the accept the risk of preventable disease.”

Some communities have sued for damages related to nitrate-contaminated groundwater. In Millsboro, Delaware, residents received a payout but still have contaminated water. In Boardman, Oregon, five residents are suing the Port of Morrow and multiple farms and CAFOs due to their well-water testing “at more than four times the safe limit established by the U.S. EPA,” Alex Baumhardt reported in the Oregon Capital Chronicle.

A few weeks ago, 1,500 tons of liquid nitrogen were spilled into an Iowa river. No living fish were found nearby. Today, polluted water flows downstream into the Gulf of Mexico, where it causes “dead zones” stripped of marine life.

“You’re either going to have to change your practices, change your farming, or you’re going to have the accept the risk of preventable disease,” Broberg said. “And you need to put that equation in your family budget. If you’re going to get bladder cancer, diabetes, birth defects, juvenile cancers—what are those going to cost?”

When asked why protecting water is so important, Tesdell paused and looked away. His voice cracked with emotion. “It’s for the grandkids.”

The post Across Farm Country, Fertilizer Pollution Impacts Not Just Health, but Water Costs, Too appeared first on Civil Eats.

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Air Quality, Not Just Fitness Level, Impacts Marathoners' Finish Times

By Dennis Thompson HealthDay ReporterTHURSDAY, Dec. 26, 2024 (HealthDay News) -- Runners put a lot of thought into how much they must eat and drink...

By Dennis Thompson HealthDay ReporterTHURSDAY, Dec. 26, 2024 (HealthDay News) -- Runners put a lot of thought into how much they must eat and drink to endure a 26.2-mile marathon, properly fueling their bodies to sustain a record-setting pace.But the quality of the air they huff and puff during endurance events could also play a key role in their performance, a new study says.Higher levels of air pollution are associated with slower average marathon finish times, according to findings published recently in the journal Sports Medicine.“Runners at that level are thinking about their gear, their nutrition, their training, the course, even the weather,” lead researcher Elvira Fleury, a doctoral student at Harvard University, said in a news release. “Our results show that those interested in optimizing athletic performance should consider the effect of air pollution, as well.”Runners’ average finish times on a marathon steadily decreased for every increase in particle pollution of one microgram per cubic meter of air, results show.Men finished 32 seconds slower on average for every increased unit of air pollution, and women finished 25 seconds slower, researchers found.These effects also appeared to be more pronounced in faster-than-average runners, researchers said.“This means that air pollution can be a health risk not just for those who are elderly or susceptible — it can negatively affect even the most healthy and well-trained among us,” senior researcher Joseph Braun, a professor of epidemiology at Brown University, said in a news release from the college.For the study, researchers analyzed data from U.S. public marathons conducted between 2003 and 2019, involving more than 1.5 million male runners and more than 1 million female runners.The research team compared the runners’ finishing times with air quality data captured on event days, including the amount of particle pollution in the air along different points of the marathon route.“This really sophisticated spatial-temporal model of particulate matter allowed us to plot pollution at every mile of every course,” Fleury said. “Without a model like this, it wouldn't have been possible to look at so many different marathons in different states across different years.”Researchers specifically looked at levels of fine particle pollution, which are airborne particles smaller than the width of a human hair or grain of fine beach sand, according to the Environmental Protection Agency.These airborne particles are typically generated by fossil fuels burned by cars and power plants, although in recent years, wildfires have contributed to such pollution.Previous studies have shown that particle air pollution is associated with overall risk of death, as well as risk of heart disease, breathing problems and lung cancer, researchers said.Air pollution could be harming marathon runners’ performance by causing increases in blood pressure, constricted blood vessels, impaired lung function, and perhaps even short-term changes in brain function, researchers speculated.“People who can complete a marathon are generally quite healthy, and we can assume they have honed their cardiorespiratory fitness,” Braun said.“This study revealed a negative impact from air pollution, even at levels below current health-based standards, on these very healthy people,” Braun continued.These findings support efforts to reduce pollution emissions by shifting motor vehicles and power plants away from fossil fuels, researchers concluded.SOURCE: Sports Medicine, journal study, Dec. 18; Brown University, news release, Dec. 18, 2024Copyright © 2024 HealthDay. All rights reserved.

Forty Years After the Bhopal Disaster, the Danger Still Remains

In many ways, we all live in Bhopal now. We must continue to fight for a future in which we all have the right to live in healthy environments.

Forty years ago this month, a Union Carbide pesticide factory in Bhopal, India, sprung a toxic gas leak, exposing half a million people to toxic fumes. Thousands of people lost their lives in the immediate aftermath, with the death toll climbing to more than 20,000 over the next two decades. Countless others, including children of survivors, continue to endure chronic health issues. In the United States, the events in Bhopal ignited a grassroots movement to expose and address the toxic chemicals in our water, air, and neighborhoods. In 1986, just two years after the disaster, this growing awareness led Congress to pass the first National Right to Know Act, which requires companies to publicly disclose their use of many toxic chemicals. In India, Bhopal victims have had a long struggle for justice. In 1989, survivors flew to a Union Carbide shareholders meeting in Houston to protest the inadequate compensation for the trauma they’d suffered. The settlement awarded each Bhopal victim was a mere $500—which a spokesperson for Dow Chemical, Union Carbide’s parent company, called “plenty good for an Indian.”  Union Carbide had the survivors arrested before they could enter the meeting. Meanwhile, their abandoned chemical factory was still leaking toxic chemicals into the surrounding neighborhoods and drinking water.  Nevertheless, Bhopal survivors never stopped fighting. They opened a free clinic to treat the intergenerational health effects caused by the disaster. They marched 500 miles between Bhopal and New Delhi. They staged hunger strikes. They created memorials to the disaster and established a museum to ensure that the horrors of their collective past are not forgotten.    The survivors even obtained an extradition order for Union Carbide’s former CEO, Warren Anderson, but the U.S. government never acted on that request. Forty years later, the factory in Bhopal has never been properly cleaned and is still leaking poison.  Unfortunately, the kinds of chemicals that flow through the veins of Bhopal survivors also flow through ours. The petrochemical industry has brought us together in a perverse solidarity, having chemically trespassed into places all over the world. According to one figure, Americans are exposed to dangerous chemical fires, leaks, and explosions about once every two days. In one dramatic example in early 2023, a rail tanker filled with vinyl chloride derailed in East Palestine, Ohio, forcing the evacuation of 2,000 residents.  Nearly all Americans now carry toxic substances known as PFAS in our bodies. These have been linked to cancer, liver and kidney disease, and immune dysfunction. And the continued burning of fossil fuels is killing millions of people each year around the world through air pollution.  Petrochemical and fossil fuel companies know they can only survive if they avoid liability for the damage they are doing to our health and the planet’s ecosystems. That’s why they are heavily invested in lobbying to prevent any such accountability. Polluting industries are certain to have strong allies in the coming Trump Administration, which plans to open even more land to fossil fuel production and, under the blueprint for conservative governance known as Project 2025, to slash environmental and public health regulations. But we can take inspiration from the people of Bhopal, whose fierce commitment to health and justice sparked a global movement. Earlier this month, on the fortieth anniversary of the Bhopal disaster, congressional allies of this movement including U.S. Senator Jeff Merkley, Democrat of Oregon, and U.S. Representatives Pramila Jayapal, Democrat of Washington, and Rashida Tlaib, Democrat of Michigan, introduced a resolution designating December 3 as National Chemical Disaster Awareness Day. “Chemical disasters are often the result of corporations cutting corners and prioritizing profits over safety,” said Merkley, who chairs the U.S. Senate Environment and Public Works subcommittee. “These catastrophes cloud communities with toxic fumes, upending lives and threatening the health and property of those living and working close by.” He called for “stronger laws to prevent chemical disasters and keep our communities and workers safe.” This growing global alliance, which has been called the largest movement for environmental health and justice in history, is fighting for a future in which everyone has the right to live in a healthy environment. It’s a movement that unites us all. Because in many ways, we all live in Bhopal now. This column was produced for Progressive Perspectives, a project of The Progressive magazine, and distributed by Tribune News Service. Gary Cohen is the president of Health Care Without Harm and a long time member of the International Campaign for Justice in Bhopal. Read more by Gary Cohen December 18, 2024 3:25 PM

Study Miscalculation Has Everyone Talking about Black Plastic Spatulas Again. Experts Are Still Concerned

The scientists behind a popular study on the health effects of flame retardants in black plastic cooking utensils and toys made a calculation error but still say their revised findings are alarming

Should you throw out your black plastic spatula? A recent study that reported alarming levels of several flame retardants in common black-colored plastic items (including cooking utensils, toys and hair products) had many people suddenly taking stock of their inky array of plastic kitchenware and considering wood or metal alternatives. And the reasons for the concern were understandable: the study’s findings, published in Chemosphere, highlighted potential health effects from exposure to the flame retardants, particularly decabromodiphenyl ether (decaBDE)—a chemical the U.S. Environmental Protection Agency banned in 2021 for its apparent links to cancer and reproductive, developmental and immunologic toxicity effects.But this week the study’s authors issued a correction that suggests exposure to decaBDE from the tested products isn’t as close to the EPA’s safety reference level as they initially thought. The decaBDE exposure they estimated from the screened products is still correct, but it’s one tenth of the reference dose. The study had miscalculated the comparison by an order of magnitude.The amount of flame retardants in such products is “not as harmful, with respect to the EPA guidance, as [the researchers] originally stated, although, with these chemicals, they may be harmful when you’re exposed to small amounts over a long period of time,” says Andrew Turner, a biogeochemist at the University of Plymouth in England, who wasn’t involved in the research and studies the disposal and recycling of plastic consumer goods. “It’s difficult to put numbers on these chemicals.”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.The study authors issued an apology for the mistake in which they maintained that the “calculation error does not affect the overall conclusion of the paper.”“Our results still show that when toxic additives are used in plastic, they can significantly contaminate products made with recycled content that do not require flame retardancy,” says Megan Liu, a co-author of the recent study and science and policy manager at Toxic-Free Future, an environmental health research and advocacy group. “The products found in this study to contain hazardous flame retardants included items with high exposure potential, such as things that touch our food, as well as toys, which come in contact with kids.”Why might some black plastics contain flame retardants? Flame retardants are required in certain products (often including computers, TVs and other common electronic items) to meet fire safety regulations. To reduce the amount of e-waste and fossil fuels needed to make new plastics, some of these items are recycled into black plastics. But the problem is that “you could also recycle the flame retardants and other chemicals that are associated with that plastic,” says Stuart Harrad, an environmental chemist at the University of Birmingham in England, who wasn’t involved in the paper. “Now that’s fine to some degree, I suppose, if you’re only recycling the plastic into uses like TV sets, where you need to meet fire safety regulations. But the point is here is that that isn’t happening.”The new study’s main goal was to identify any flame retardant chemicals in various common products. The researchers screened 203 items, ranging from plastic sushi take-out trays to toy necklaces—and found 17 of them were contaminated with high levels of flame retardants. Fourteen of those products contained high levels of decaBDE.The U.S. has largely banned decaBDE and other polybrominated-diphenyl-ether-based flame retardants. New electronic goods use safer flame retardants, but older electronics that contain decaBDE could still be in many households or might have been only recently tossed out for recycling, Turner says. “When you talk about some electronic devices, they last quite a long time,” he adds. These older devices might only be reaching recycling plants now.The new study’s findings generally line up with past evidence that recycled plastics—and flame retardants—can end up in toys and cooking utensils, Harrad says. But it’s been unclear whether the mere presence of flame retardants in a cooking utensil pose any health threat to humans; there are many contributing factors, including the source, the dose, the duration of exposure and any other chemicals that may be present. In a 2018 study Harrad and his colleagues tested potential exposure from black plastic cooking utensils and found that uptake through the skin from simply holding them was negligible. But when they tested them in prolonged cooking experiments with hot oil, about 20 percent of the flame retardants in a utensil transferred into the oil on average. “That’s really because the oil, particularly hot oil, is going to be a pretty good way of extracting these chemicals,” Harrad says.How did the miscalculation occur?The authors of the new study estimated humans’ potential exposure to decaBDE from the plastic products by using the calculation in Harrad’s 2018 study. They applied this calculation to the median levels of decaBDE detected in the products they tested. This wound up being an estimated 34,700 nanograms per day of decaBDE. They then compared that figure with the EPA’s reference dose of 7,000 nanograms per kilogram of body weight per day. (Some researchers note that this measurement was derived from lab tests and animal models, not direct human testing). To better assess human risk, the scientists calculated a reference dose based on a 60-kg (132-pound) person and initially found 42,000 ng per day, a value alarmingly close to the 34,700 ng per day of exposure they estimated from the new data. But 7,000 multiplied by 60 is actually 420,000. This may have been a simple math error, but the correction massively reduces how close the amount of exposure is to the maximum acceptable limit.The figure with the miscalculation was “contextualizing the levels that we saw in our study, thinking that it could be helpful for people,” Liu says. “This was really just one part of our study that isn’t even part of our key findings.”She and her co-authors have emphasized that the error shouldn’t detract from one of the study’s main conclusions: that none of these flame-retardant chemicals, especially those that have been banned, should be found, in any amount, in these products in the first place.“They're probably banging their head in frustration when they found out they made that calculation error,” Harrad says, adding that the rest of their findings “were perfectly plausible.”“The study does highlight the fact that we’ve not sorted this out yet—that we’re still finding these chemicals coming through into new goods that contain recycled plastics,” Harrad says. “We do need to step up our efforts to isolate these chemicals from waste and make sure that they don't get recycled.”So should you really ditch your black plastic spatula? Harrad says you should avoid leaving it in a hot pan or pot for long periods of time. Some experts don’t recommend reheating food in black plastic containers, although studies haven’t confirmed if this causes chemicals to leach into food. Importantly, “if you see that your black utensil is damaged in any way, just [get rid of it] and go for something else,” Turner says—pieces of the plastic could potentially break off into food.When looking for new cooking ware, Turner says that it’d be more sustainable, and potentially safer, to reduce the use of black plastic items and opt for a material or color that’s more easily recyclable. Liu says wood, stainless steel or silicone products are some safer alternatives. She adds, however, that people can’t “shop” their way out of a larger societal issue. “We can’t expect that everyone can immediately switch over to safer alternatives,” Liu says. “That’s ultimately why we’ve been calling on greater regulatory action at both the corporate and government level to regulate and restrict these harmful chemicals.”

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