“The report ranked the region the eighth worst of more than 200 metropolitan areas in the nation for long-term (annual) soot pollution; the 14th worst for short-term or daily soot pollution, and the 29th worst for ozone, the main precursor for unhealthy smog.
“The report on pollution levels in the 12-county metro region in southwestern Pennsylvania, northern West Virginia and eastern Ohio, uses government collected data for the three years, 2013-15, the latest period for which complete pollution measurements are available. . . .
“‘To address this significant public health issue, local and regional regulators must aggressively crack down on companies that violate their permits and ensure that all companies are operating with up-to-date permits,’ she said. ‘In addition, municipalities, school districts, and other fleet owners should retire the oldest, most polluting diesel vehicles and equipment from their fleets.’”