Public healthMore than 10,000 pesticides approved by EPA without rigorous review

Published 28 March 2013

Congress allowed the Environmental Protection Agency (EPA) to use what is called “conditional registration” to approve pesticides deemed especially beneficial for food production – even before all the toxicity tests have been completed. Congress intended conditional registration to be used only sparingly, but the EPS has been using the loophole in a wholesale fashion to approve 65 percent – or more than 10,000 – of the 16,000 pesticides submitted to it for approval. The EPA cannot easily track the history of conditionally approved pesticides to determine whether required toxicity data was submitted, whether that caused a dangerous use of a pesticide to be cancelled, or whether the uses or restrictions should be modified based in such data.

A two-year investigation by the Natural Resources Defense Council (NRDC) has found that the federal government has potentially threatened the public’s health by improperly using a regulatory loophole to approve many untested or under-tested toxic pesticides.

NRDC has found that the Environmental Protection Agency (EPA) used this loophole to approve 65 percent of 16,000 pesticides for use in consumer products and agricultural processes.

An NRDC release reports that the group yesterday released a report on its investigation, Superficial Safeguards: Most Pesticides are Approved by Flawed EPA Process, which calls for major reforms in the government’s approval process for toxic pesticides.

The report outlines how the EPA has used what is known as conditional registration — which Congress intended to be used sparingly — to grant approval for the majority of pesticides. It also reveals that the EPA cannot easily track the history of conditionally approved pesticides to determine whether required toxicity data was submitted, whether that caused a dangerous use of a pesticide to be cancelled, or whether the uses or restrictions should be modified based in such data.

“The American public may think all pesticides receive rigorous health and safety testing before they hit the shelves for sale. But our investigation shows their trust is misplaced,” said Jennifer Sass, NRDC senior health scientist and co-author of the report. “The EPA has casually approved more than 10,000 pesticides for use in consumer products and in agriculture through this loophole. They’ve done so without transparency or public comment, and, in some cases, without toxicity tests to determine safety guidelines for public use.”

Co-author Mae Wu, NRDC attorney, said: “For the sake of our health, the EPA should cancel conditional pesticide registrations with overdue toxicity tests and those that pose a risk to the public.  EPA needs to clean up its inadequate pesticide database to provide more transparency and accountability, and safeguards for public health.”

NRDC’s report, which outlines the EPA’s pesticide approval process, highlights two case studies on conditionally approved pesticides. The first one, nanosilver — which may damage cells in the brain, liver, and other organs, and pass from mother to fetus — is widely used as an antimicrobial agent in clothing. The second one, clothianidin — which is in a family of pesticides connected to widespread deaths of bees in the United States and beyond — was approved based on a flawed bee field test. Both remain on the market today.

The release notes that in 1972, Congress amended the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) to impose more stringent testing requirements to register pesticides. Registrants subsequently struggled to meet the new data requirements by the law’s deadlines. To address this problem, in 1978 Congress created the conditional registration procedure.

Congress intended for the EPA to use its conditional registration process only under certain circumstances to allow some pesticides onto the market to serve the public interest, or while required data is produced and submitted. NRDC, however, examined the pesticide registry database and determined the EPA has abused this authority to send onto the marketplace the majority of pesticides.

NRDC determined that the EPA is not tracking conditional registrations to assess whether toxicity or other required health or environmental impact data is submitted. Nor does the agency track what submitted data shows regarding a pesticide’s potential for harm, or what, if any, changes were made in their recommended use. In fact, conditional registrations can last for as many as fifteen years with no trigger to force the EPA to assess their status.

Based on those findings, NRDC calls on the EPA to take six corrective actions:

  • Review all previously conditional registrations to ensure they comply with the law.
  • Immediately cancel pesticide registrations with overdue studies or those that pose a risk to the public, including nanosilver and clothianidin.
  • Properly track conditional registrations to provide transparency for the public.
  • Establish a public comment process for conditional pesticide registrations.
  • Make all submitted data accessible to public review.
  • Return to congressional intent and grant conditional pesticide registrations only in rare cases.

NRDC says that taking these steps would close the wide loophole that exists today that allows pesticide manufacturers to get many products onto the market before they are thoroughly assessed, and would restore integrity to the government’s duty to provide proper oversight of pesticides.

— Read more in Jennifer Sass and Me Wu, Superficial Safeguards: Most Pesticides Are Approved by Flawed EPA Process (NRDC, March 2013); and Laura Fraser, “EPA Lets Pesticides on the Market Untested,” OnEarth (27 March 2013); and Jennifer Sass’s Switchboard blog post