organophosphates Archives

May 1, 2024

EPA action on nerve agent used in food applauded, but concerns persist

By Carey Gillam

A proposal by US regulators to issue a ban on most uses of a pesticide that acts as a nerve agent was applauded by health advocates this week, though some warned the proposal doesn’t go far enough.

The Environmental Protection Agency (EPA) proposal targets acephate, a widely used bug-killing chemical whose residues have been found in foods generally considered healthy, such as celery, green beans and tomatoes. The chemical is also found in drinking water.

The agency said it plans to end all uses of acephate on food because it had determined – after more than 50 years of use – that it cannot be certain that “no harm would result” from acephate exposure, particularly from acephate levels in drinking water.

Acephate is part of a class of nerve agent chemicals known as organophosphates that are popular with US farmers who use them to fight pests in their fields. But the chemicals have been linked to a range of adverse health effects, particularly in children, such as reduced IQ, attention deficit disorders, and autism spectrum disorders. Acephate, long banned in the European Union, has also been linked to cancer among other health problems.

“We are applauding this. It is long overdue,” said Patti Goldman, a lawyer with Earthjustice, one of several health and environmental advocacy organizations that have pushed the EPA for year to take action on acephate and other organophosphates. “We are really pleased that EPA is proposing to ban all food uses.”

Earthjustice, along with several other health, civil rights, farmworker, and learning disability groups, filed a petition in 2011 calling on the EPA to prohibit all organophosphates.

The EPA action came late last month, coinciding with a report by ProPublica, which revealed how the agency had in the past justified increasing the amount of acephate allowed on food by removing safety margins that are called for in federal law to protect children from pesticide residues in their diets.

The new EPA proposal reiterates that stance, saying that when using “new approach methods” for developmental neurodevelopmental toxicity (DNT NAMs), there was little scientific support for adding those protections for children.

Nonetheless, the EPA said its assessments show current uses of acephate pose both dietary and aggregate risks that are “inconsistent” with safety standards.

August 30, 2022

Citing “irreversible harm,” lawmaker introduces bill to ban class of pesticides

By Carey Gillam

US Rep. Nydia Velazquez on Tuesday introduced a bill that would ban organophosphates in food production, citing harm to children, farmworkers and other vulnerable communities exposed to the group of chemicals.

“The science has been clear for decades: this type of pesticide is a dangerous neurological threat to farmworkers and our children,” Velázquez said in a statement. “These pesticides during early life have been shown to lead to irreversible harm to the developing brain, which can result in long-term effects like attention disorders, autism, and reduced IQ.”

The move is the latest in a series of actions aimed at reducing US pesticide use, and comes as the US Environmental Protection Agency (EPA) is evaluating continued use of organophosphates, which commonly leave residues in finished food products.

Pesticide manufacturers and agricultural industry groups oppose a ban. A coalition of more than two dozen such groups sent a letter to the EPA in late July, arguing that organophosphates act as an “essential tool” for managing insect pests.

“The continued availability of this group of pesticides is important to US growers due the safety and effectiveness of these proven pesticides,” the coalition said in the letter.

The EPA recently banned food uses of a type of organophosphate called chlorpyrifos, an insecticide popular with farmers but shown by scientific research to cause neurodevelopmental harm to children. Critics say there are more than a dozen other organophosphates that should be similarly banned.