STATES, ACTIVISTS RAISE CONCERNS OVER EPA DECISION TO DELIST AIR TOXIC

Activists and some state officials are challenging EPA's scientific rationale for a rare delisting of the solvent methyl ethyl ketone (MEK) from the Clean Air Act list of air toxics, warning there is too much uncertainty about MEK's health effects to warrant the delisting. EPA's action marks only the fourth time the agency has removed an air toxic from the list. Activists and states say it is too early to predict whether they will sue EPA over the rule, but...