Questions Arise About Kansas Refineries

Three Kansas communities with a combined population equal to that of Lawrence are at risk of exposure to a chemical that can be 100 times more lethal than carbon monoxide. The substance is hydrofluoric acid, which is used to make high-octane gasoline, and according to worst-case estimates that oil refiners in El Dorado, McPherson, and Coffeyville have provided to federal regulators, an accidental release could expose more than 92,000 nearby residents to dangerous levels through a toxic cloud. Within range are schools, residences, hospitals, and recreation areas.