Regan says the EPA reevaluates pesticides every 15 years, and is not scheduled to act on chlorpyrifos until 2015.
So, the suit is an attempt to speed up the process.
"Right now, the United States is behind the curve with a number of other nations. Countries all over the world – for example, recently, South Africa – have already completely banned use of chloropyrifos. We believe it’s time for EPA to take action."
Its maker, Dow AgroSciences, says chlorpyrifos has been the subject of more than 500 studies and reports, which, in its words, are "largely reassuring" about its effects on human health and the environment. The company also has a website full of farmers’ comments, including the Washington Hay Growers’ Association, saying the chemical is a necessary part of their pest control activities.
The suit was filed in the Southern District of New York. The Pesticide Action Network website contains background on the controversy surrounding the chemical, at www.panna.org. Dow’s site with rebuttal information is www.chlorpyrifos.com.