fertilizer

October 17, 2024

Algae bloom kills hundreds of sea lions off California

Hundreds of sea lions off the coast of California have been poisoned this year amid a “highly unusual” algae bloom that has persisted in southern and central parts of the state into October.

Experts believe the blooms, which are becoming more common, may be linked to warming and changing ocean conditions. They harm sea life when algae produce a neurotoxic chemical that can be taken up by fish and crustaceans and absorbed by the larger animals that eat them.

Off the US west coast, the proliferations of algae, sometimes called “red tides”, usually peak in the late spring. For the last three years, however, harmful blooms have come on strong in the summer and, this year, lasted into autumn before mostly petering out.

That is “highly unusual,” according to Clarissa Anderson, a researcher with the Scripps Institution of Oceanography, who is also the director of the Southern California Coastal Ocean Observing System, which tracks harmful algal blooms.

“It’s catching us all off guard,” Anderson said.

September 13, 2024

New study finds potentially harmful pathogens traveling high in the atmosphere

By Douglas Main

A wide variety of fungi and bacteria, including E. coli and other potential human pathogens, have been found high in the atmosphere where they can travel for hundreds to thousands of miles before falling back to Earth, according to new research.

Air samples collected from between roughly a half mile and two miles in altitude (1 kilometer to 3 kilometers) near Tokyo, Japan, carried bacterial species known to be capable of causing health problems such as food poisoning and skin infections, researchers said.

The study, published this week in Proceedings of the National Academy of Sciences, reported that while most of the microbes detected were likely dead, testing confirmed more than ten species of microbes collected from high in the sky were alive. Those were particularly hardy strains, including several found to be antibiotic resistant. One of these, a type of ubiquitous bacteria not known to normally infect humans, was resistant to five different antibiotic drugs.

The discovery represents a “paradigm shift,” said Xavier Rodó, the study’s lead author and head of the health and climate program at the Barcelona Institute for Global Health. “From the public health standpoint it opens the door to really viewing the air and the atmosphere as an environment we need to pay attention to.”

The scientists used atmospheric measurements and computer models in concluding that most of the material found over Tokyo was coming from an agricultural region in northeast China, where row crops and livestock are raised. The study authors hypothesized that some of the bacteria, including the antibiotic-resistant ones, derived from sewage used to fertilize the land, and from the soil itself.

Widespread use of antibiotics with industrialized livestock production could plausibly introduce antibiotic resistance bacteria into the atmosphere as bits of soil and manure can be aerosolized and blow away on the wind, said David Smith, a NASA microbiologist who wasn’t involved in the study.

Besides microbes, the researchers also found significant quantities of many elements normally found in soil, such as sulfur and sodium, as well as aluminum, potassium, iron, and calcium.

They also detected zinc sulfate nanoparticles, which they hypothesized are coming from fertilizer use, as well as trace quantities of zirconium and hafnium, metals mined in China but not in Japan.

September 11, 2024

EPA denies duty to regulate PFAS in sewage sludge spread on farmland

By Shannon Kelleher

US regulators claim they are not legally required to regulate toxic PFAS chemicals in sewage sludge spread on farmland across the country, according to a court filing the government made this week in response to a lawsuit from an environmental watchdog group.

In its Sept. 9 filing, the Environmental Protection Agency (EPA) asked the US District Court in Washington, DC to dismiss the lawsuit, which was filed in June by Public Employees for Environmental Responsibility (PEER) on behalf of a group of Texas farmers and ranchers. The lawsuit claims contamination with per- and polyfluoroalkyl substances (PFAS) from sewage sludge has sickened and killed the farmers’ livestock, “injured their health, threatened their livelihoods, and devalued their property.”

The agency denied PEER’s claims that it is violating the Clean Water Act by failing to identify and regulate several types of PFAS that have been found in treated sewage sludge used as fertilizer. While the law requires the agency to conduct reviews, there is no requirement for the agency to actually identify “additional toxic pollutants,” the EPA said in its filing.

When it comes to sewage sludge, “both the identification and regulation of any additional toxic pollutants(s) are left to the discretion of EPA,” the agency stated in the court filing.

“The relief they seek— an order directing EPA to identify PFAS in its next biennial report, and to regulate PFAS thereafter—is simply not available,” the EPA stated.

PEER attorney Laura Dumais said in a press release that the agency’s position “flies in the face” of the language of the Clean Water Act, and harms people across the country who can be exposed to “PFAS-laden sewage sludge on millions of acres of land…”

July 16, 2024

A battle in rural Midwest as farmers fight carbon capture pipeline

By Nina Elkadi

Kathy Stockdale and her husband have spent almost 50 years working the land in central Iowa. As a family farmer raising corn and soybeans, Stockdale knows how to deal with harsh weather, poor crop prices, and an array of other challenges that come with a making a living in agriculture.

But the operation she has spent a lifetime cultivating now faces a threat unlike any Stockdale has previously faced: Developers are planning to carve through her property with a pipeline carrying hazardous CO2 gas from ethanol plants, and there is little she can do to stop them.

The pipeline would run a mere 700 feet from Stockdale’s front doorstop and would create a barrier between the home she shares with her husband and the nearby home where her son lives. The farm’s soils and wetlands would be forever altered by the pipeline intrusion, and if the pipeline were to rupture, the damage could be catastrophic, Stockdale fears.

“It consumes your thoughts. You don’t sleep. You ask any of the landowners who have been fighting this, it’s been hard, it’s been stressful,” she said.

The Stockdales are among many farm families in Iowa and four other Midwestern states fighting to kill the pipeline, which was proposed three years ago by Summit Carbon Solutions (SCS) as the “world’s largest carbon capture and storage project.” SCS had initially planned to start operating the 2,500-mile pipeline network, dubbed the Midwest Carbon Express, this year. But opposition across the rural Midwest has delayed the project.

April 17, 2024

EPA called to address “long-ignored health crisis” in Iowa drinking water

By Carey Gillam

US regulators must take immediate action to address a “long-ignored health crisis” stemming from dangerously contaminated drinking water in Iowa, according to a legal petition filed by environmental and health advocacy groups this week.

The Iowa Environmental Council (IEC) and 12 other organizations are calling for the Environmental Protection Agency (EPA) to take a series of steps to reduce harmful nitrate pollution found in water supplies in Northeast Iowa.

The petition highlights the fact that for many years, nitrate concentrations found in thousands of private wells and some public water sources have exceeded the federal limit of 10 milligrams per liter for drinking water.

State agencies have documented the contamination, but have “failed to do what is needed to correct the pervasive threat to human health,” the petition states.

“For decades, Northeast Iowa residents have been exposed to dangerous levels of nitrate contaminated water,” Food & Water Watch attorney Dani Replogle said in a press release. “As the state reckons with high cancer levels and ongoing pollution regulation rollbacks, federal action is needed to safeguard the right to clean water. EPA must exercise emergency authority to hold polluters accountable and deliver safe drinking water in Iowa.”

Food & Water Watch is among the groups joining IEC in its petition. Others include the Environmental Working Group, the Center for Food Safety, the Environmental Law & Policy Center, and several state organizations.

All signs indicate that “dangerous contamination levels will continue or worsen, absent EPA action,” the petition states.

Farm operations are largely to blame for the contamination, both from the runoff of fertilizer applied to fields of corn and other crops, and the runoff of liquified manure generated by large livestock operations that is also often spread on farm fields. The runoff carries nitrates and phosphorus into surface and groundwaters, and ultimately drinking water.

Iowa is one of the nation’s largest farm states for crops and livestock, and Northeast Iowa is particularly vulnerable to farm pollutants because of its “karst” terrain, which features porous limestone that allows surface pollutants to more quickly move into groundwater. All of the drinking water in the karst region of northeast Iowa depends on groundwater aquifers.

Despite these facts, only a small fraction of private wells are tested regularly for nitrates, which are known to cause health problems at high levels, especially for infants. Cancer is a specific concern with nitrate exposure. Still, more than 1,200 wells in the 12-county karst region tested above the federal threshold for safety from 2016 to 2023, the petition states.

April 15, 2024

“It’s getting worse” – US failing to stem tide of harmful farm pollutants

By Keith Schneider

VENICE, LA. Kindra Arnesen is a 46-year-old commercial fishing boat operator who has spent most of her life among the pelicans and bayous of southern Louisiana, near the juncture where the 2,350-mile-long Mississippi River ends at the Gulf of Mexico.

Clark Porter is a 62-year-old farmer who lives in north-central Iowa where he spends part of his day working as an environmental specialist for the state and the other part raising corn and soybeans on hundreds of acres that his family has owned for over a century.

Though they’ve never met, and live 1,100 miles apart, Arnesen and Porter share a troubling kinship – both of their communities are tied to a deepening water pollution crisis that is fouling the environment and putting public health in peril across multiple US states.

Arnesen’s home lies near an oxygen-depleted expanse of the northern Gulf known as the “dead zone,” where dying algae blooms triggered by contaminants flowing out of the Mississippi River choke off oxygen, suffocating shrimp and other marine life.

Porter’s farm is positioned at the center of the Upper Mississippi River Basin where streams and other surface waters saturated with farm wastes flood into the big river, and contaminated groundwater permeates drinking water wells. Cancer incidence in Iowa is among the nation’s highest, and is rising.

The culprit at the center of it all is a colossal tide of fertilizer and animal manure that runs off fields in Iowa and other farm states to find its way into the Mississippi River. The same agricultural pollution problems are plaguing other iconic US waterways, including Chesapeake Bay and Lake Erie.

US farmers use more fertilizer and spread more manure than in most other countries, accounting for roughly 10% of global fertilizer use, behind China and India. But while the nutrients contained in animal manure and fertilizer are known to nourish crop growth, the resulting nitrogen and phosphorous that end up in waterways are known to create severe health problems for people.

A grand government plan to address the problem has cost taxpayers billions of dollars with minimal results so far, and nowhere is the problem more pronounced than in the Mississippi River Basin.

The reasons for the persistent pollution problem are multi-fold, including strong industry opposition to regulations to control the farm contaminants, and a perverse system in which some government programs incentivize farming practices that add to the pollution even as other government programs try to induce farmers to reduce the pollution.

“You’re talking about systemic dysfunction,” said Matt Liebman, professor emeritus of agronomy and sustainable agriculture at Iowa State University.

March 11, 2024

Farmers facing PFAS pollution struggle for solutions

By Shannon Kelleher

When Jim Buckle and his wife, Hannah Hamilton, started their 18-acre organic vegetable farm in Unity, Maine more than a decade ago, they wanted to grow the healthiest food possible. But after a wholesale buyer asked them to test their operation for toxic chemicals called per- and polyfluoroalkyl substances (PFAS) in 2022, the couple was in for a shock.

The soil tests came back clean, as the couple expected. But Buckle’s heart sank when the results arrived for the well water they used to wash and irrigate their vegetables. Through no fault of their own, the farm Buckle and Hamilton had carefully cultivated for nearly a decade was contaminated with PFAS-laced sewage sludge that had been used as fertilizer on land nearby years earlier.

Faced with evidence that their harvests were also likely contaminated with potentially hazardous PFAS toxins, he and Hamilton made the decision to close down their farming operations, at least temporarily, as they wrestled with how they might clean up their farm and protect it from future contamination.

“We said, ‘wow, this is crazy. We actually have this problem,’” Buckle said.

About a year earlier, first-generation organic farmers Katia Holmes and her husband faced a similar crisis on their 700-acre Misty Brook Farm in Albion, Maine, where they raise livestock and grow grains. In their case, the well water was fine, said Holmes. But testing of their cows’ milk – and the hay they bought from a neighbor to feed the cows – came back with elevated levels of PFAS.

Further testing revealed that a previous owner of the Holmes’ land had spread sewer sludge on certain fields 20 years ago, leaving behind PFAS in the soil.

“We called all the stores and pulled all our products,” said Holmes.

Buckle’s and Holmes’ stories are, sadly, becoming more common.

February 22, 2024

Texas farmers, watchdog group demand EPA act on PFAS in farm fertilizer

By Shannon Kelleher

In the wake of fresh evidence that US farms are being poisoned by PFAS-laden fertilizers, a watchdog group and two Texas farm families said Thursday they plan to sue regulators to try to force protective actions.

The Environmental Protection Agency (EPA) has violated the Clean Water Act by failing to regulate at least 12 per- and polyfluoroalkyl substances (PFAS) in treated sewage sludge (biosolids) applied to agricultural lands, allege Public Employees for Environmental Responsibility (PEER) and the farmers in a notice of intent to sue sent Feb. 22 to EPA Administrator Michael Regan. Studies have linked these particular PFAS chemicals to asthma, disrupted thyroid hormones, immune suppression, kidney problems, lung issues in children, and other health effects, the letter says.

The agency has also unlawfully failed to include in its regular biosolids reports at least 18 additional PFAS chemicals that scientific studies indicate are present in biosolids, PEER and the farmers allege.

PEER and the farmers will sue the EPA within 60 days if the agency does not take immediate action, said PEER executive director Timothy Whitehouse in the notice of intent to sue.

“EPA has deemed it acceptable for biosolids containing PFAS and other known toxic chemicals to be applied directly to soil as fertilizer, where these man-made contaminants then build up in the environment, exacerbating the PFAS contamination crisis,” wrote Whitehouse. “This is not protective of human health or the environment.”

“Because there are no standards, farmers, ranchers, and gardeners have no warning that they are potentially poisoning their soil, water, livestock, and pets with these biosolid fertilizer products,” Kyla Bennett, director of science policy for PEER, said in a press release. “Prompt, responsible regulatory action by EPA would prevent untold damage and heartache.”

Riverview, FL phosphogypsum stack. Photo by Sarah Gledhill.

February 22, 2024

Citing “toxic mountains,” conservation groups file notice of intent to sue EPA

By Johnathan Hettinger

US regulators are failing to address toxic “open-air dumps” that in some cases tower many hundreds of feet tall and hundreds of acres wide, according to a group of conservation and public health advocates who have filed a notice of intent to sue the government to force protective action.

The advocacy groups represent people in multiple states who live near the manmade dumps that store massive amounts of a radioactive substance called phosphogypsum, which is generated in the process of creating phosphoric acid for fertilizer. Phosphogypsum and its leachate can contain several hazardous substances, including arsenic, lead, cadmium, and chromium. These substances are considered carcinogenic and known to induce damage to multiple organs, even at lower levels of exposure, according to the National Institutes of Health.

Communities in Florida, Texas, Louisiana and other states are at risk from these dumps, according to the groups. There are four “Superfund” abandoned hazardous waste sites in Idaho, Illinois and Mississippi, where phosphate plants once operated.

The fertilizer industry creates 46 million tons of phosphogypsum each year, more than the amount of regulated hazardous waste produced in all other industries combined, according to the notice of intent to sue. In Florida, alone, there are more than one billion tons of phosphogypsum stored across 25 stacks, the groups say.

“The waste is not just toxic, it’s not just carcinogenic. It’s radioactive,” said Jaclyn Lopez, director of the Jacobs Public Interest Law Clinic for Democracy and the Environment at Stetson University, who is providing legal representation to the groups. Lopez recently authored a legal review finding that these plants are largely concentrated in low-wealth and minority communities across the United States.

“This has the potential to impact truly millions of people,” Lopez said.

February 20, 2024

Dead livestock and poisoned water — Texas farmers sue over PFAS contamination

By Shannon Kelleher

Two Texas farm families have seen their health decline, their pets and livestock sickened and killed, their water poisoned and and their property values wiped out due to high levels of chemical contamination linked to a company marketing treated sewage sludge as a fertilizer and soil conditioner, according to a lawsuit filed by the families.

The lawsuit alleges the plaintiffs’ farms, located near Fort Worth, were “poisoned by toxic chemicals” after a neighboring farmer took shipment of “smoking” piles of biosolids that contained hazardous per- and polyfluoroalkl substances (PFAS) in late 2022.

The PFAS-laced fertilizer was allegedly made by Synagro of Texas-CDR Inc., using semi-solid treated waste obtained from wastewater facilities. The waste, referred to as biosolids, has been promoted as an effective means for turning sewage into useful agricultural applications that can boost crop yields.

The biosolids are supposed to be treated to remove toxins, but PFAS chemicals are difficult – if not impossible – to break down, and are known to persist in the environment. Sometimes called “forever chemicals,” several types of PFAS are known to be hazardous to human health, including some linked to cancers.

Synagro is one of the largest in the biosolids industry, and knew, or should have known, that its biosolid products contained PFAS, according to the lawsuit, which was filed last week in Maryland, where Synagro is headquartered.

Synagro did not respond to a request for comment. On its website, the company calls itself a “partner for a cleaner, greener world” and says it works to “protect the health of the water, our Earth and those who depend on them now and for the future.”