In a move not seen for almost 40 years, the Environmental Protection Agency on Tuesday issued an emergency order suspending all uses of a weedkiller linked to serious health risks for unborn babies.
The herbicide dimethyl tetrachloroterephthalate, also known as DCPA or Dacthal, is used on crops such as broccoli, brussels sprouts, cabbage and onions. Fetuses exposed to it could suffer from low birth weight, impaired brain development, decreased I.Q., and impaired motor skills later in life, the E.P.A. said.
The chemical has been prohibited for use on crops in the European Union since 2009.