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Lack of cleanup for Clairton in US Steel announcement highlighted Pittsburgh - Clean Water Action released today a report detailing the history of violations of the federal Clean Air Act standards in the Mon Valley over the past 12 years. The results found air quality monitors in the Mon Valley recorded some of the worst air, not just in Allegheny County, but throughout Pennsylvania. The report details the failure to protect Mon Valley residents from illegal levels of both sulfur dioxide and fine particles, or breathable soot. Over 400 exceedances of federal standards for these pollutants have