In January EcoWatch reported that the U.S. Environmental Protection Agency (EPA) released its first nationwide assessments of the effects of three pesticides, all organophosphates, on endangered species. It found that 97% of 1,800 animals and plants protected under the Endangered Species Act are likely to be harmed by malathion and chlorpyrifos, two commonly used pesticides. The World Health Organization last year announced that malathion and diazinon are probable carcinogens.
Another 78% are likely to be hurt by the pesticide diazinon. The results are the final biological evaluations the EPA completed as part of its examination of the impacts of these pesticides on endangered species. (See April draft here).
The three pesticides are all organophosphates, a class of insecticides which researchers at the University of California at Berkeley found in 87% of human umbilical-cord samples.
In 2015, the Environmental Protection Agency proposed to ban chlorpyrifos, a widely used insecticide sprayed on a variety of crops including oranges, apples, cherries, grapes, broccoli and asparagus. The pesticide, in use since 1965, was linked to illnesses among farm workers and neurodevelopmental problems in children. However, Dow AgroSciences and others in the agrichemical industry successfully resisted the proposal.
EcoWatch reports that Chemical & Engineering News (paywall) states the EPA is under a court order to make a determination about the use of chlorpyrifos by March 31 — about a decade after the agency initially failed to respond to a petition raising concerns about the chemical from environmental advocates.
Following these final evaluations from the EPA, the U.S. Fish and Wildlife Service and the National Marine Fisheries Service will issue final biological opinions to identify mitigation measures and changes to pesticide use by December 2017 to help to ensure that chlorpyrifos, malathion and diazinon will no longer potentially harm any endangered species in the U.S. when used on agricultural crops.
“We’re now getting a much more complete picture of the risks that pesticides pose to wildlife at the brink of extinction, including birds, frogs, fish and plants,” said Nathan Donley, senior scientist at the Center for Biological Diversity:
“The next step will hopefully be some commonsense measures to help protect them along with our water supplies and public health.”