Environmentalists sue EPA over SO2 SIP failures

Three environmental groups are suing EPA alleging the agency violated the Clean Air Act by failing to ensure portions of Michigan and Maryland have effective state plans for meeting sulfur dioxide (SO2) ambient air quality standards. The Aug. 11 suit , Center for Environmental Health, et al. v. Michael Regan , filed in U.S. District Court for the Northern District of California, charges that EPA has failed to ensure that Anne Arundel and Baltimore counties in Maryland and parts of...