WASHINGTON (AP) - Federal scientists have determined that a family of widely used pesticides poses a threat to dozens of endangered and threatened species, including Pacific salmon, Atlantic sturgeon and Puget Sound orcas.
The National Marine Fisheries Service issued its new biological opinion on three organophosphate pesticides - chlorpyrifos, diazinon and malathion - after a yearslong court fight by environmental groups. At the urging of pesticide manufacturers, the Trump administration had sought a two-year delay of a court-ordered deadline to issue the findings by the end of 2017, but it was unsuccessful.
The 3,700-page federal review, dated Dec. 29, concludes that chlorpyrifos and malathion jeopardize 38 out of the 77 species under the jurisdiction of the fisheries service and that diazinon was found to jeopardize 25 of the listed species.
The report makes detailed recommendations to the Environmental Protection Agency for new restrictions on how and where the pesticides can be sprayed to help limit the harm.
EPA Administrator Scott Pruitt in March reversed an Obama-era effort to bar the use of chlorpyrifos on fruits and vegetables after peer-reviewed academic studies found that even tiny levels of exposure could hinder the development of children's brains.
EPA's press office did not respond Friday to a request seeking comment about the latest federal study on the threat to protected species.
Dow Chemical, based in Midland, Michigan, has been selling chlorpyrifos for spraying on citrus fruits, apples, cherries and other crops since the 1960s. It is among the most widely used agricultural pesticides in the United States, with Dow selling about 5 million pounds domestically each year.
Dow AgroSciences, the Dow subsidiary that sells chlorpyrifos, did not respond to a request for comment Friday.
CropLife America, an industry trade group that lobbies Congress and federal agencies on pesticide regulations, said it is still reviewing the final National Marine Fisheries Service opinion.
"The denial of a requested extension of time to complete the opinion resulted in a document that has the potential to create exaggerated and unfounded concerns regarding threatened and endangered species and have a negative impact on farmers as well as public health protection," said Jay Vroom, the CEO of CropLife.
A coalition of environmentalists and commercial fishermen has fought in court for more than a decade to spur the federal government to more closely examine the risk posed to humans and endangered species by organophosphates.
Studies have shown for years that even low levels of pesticides running off into streams and rivers can impair the growth, swimming ability and reproductive systems of salmon. Potentially harmful levels of the toxins then build up in the bodies of orcas, also known as killer whales, that eat salmon.
Copyright 2018, The Associated Press