Why did Scott Pruitt refuse to ban a chemical that the EPA itself said is dangerous?

SMEA Professor and Associate Director Nives Dolsak, and UW Professor and Director of the Center for Environmental Politics Aseem Prakash recently wrote an article for the Washington Post Monkey Cage examining why Scott Pruitt refused to ban a chemical that the EPA itself said is dangerous. Pruitt recently denied a petition asking for a ban on the use of an insecticide called Chlorpyrifos. The petitioners, Pesticide Action Network and the Natural Resources Defense Council, cited studies that show Chlorpyrifos can have serious health consequences, such as damaging the nervous system of infants and children. Read the full article here; https://www.washingtonpost.com/pb/news/monkey-cage/wp/2017/04/12/why-did-scott-pruitt-refuse-to-ban-a-chemical-that-the-epa-itself-said-is-dangerous/?outputType=accessibility&ni