Judith Enck says U.S. EPA is deferring too much to Ohio agencies, which don't have enough expertise and experience in dealing with chemical emergencies.
Workers brought in to clear and rebuild the tracks after the derailment are now complaining of health problems similar to those experienced by residents of East Palestine.
Carnegie Mellon and Texas A&M researchers found high levels of acrolein, a chemical found in manufacturing and formed in combustion. It is considered a hazardous air pollutant.