Study shows short pesticide exposure harms fish
Although pesticides can rid your home of cockroaches or farm fields of unwanted insects, they also can harm fish and potentially even people, according to a new study from Oregon State University. At high concentrations, these commonly used pyrethroid pesticides, bifenthrin, cyfluthrin and cyhalothrin, act as a neurotoxin for pests. … At low concentrations, the pyrethroid pesticides disrupt fish’s endocrine system, which produces hormones. The scientists wanted to better understand how short of an exposure would harm fish.