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The blaze knocked out sulfur pollution controls for 3 months.
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US Steel is applying for a permit to install new pollution controls at its Clairton Coke Works. But environmental groups say there’s a catch — it could…
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Pittsburghers are all too familiar with the smell of sulfur dioxide emissions, but it's invisible. Now, residents can get a better visual of how air…
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Allegheny County is meeting federal air quality standards for the first time ever at all eight of its monitors, the county said. Improved air quality…
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A controversial natural gas well at a US Steel Plant near Pittsburgh suffered a setback Thursday night. The East Pittsburgh Borough zoning hearing board…
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An Allegheny County judge has approved a settlement to resolve a class action lawsuit that claims pollution from the country's largest coke producing…
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Some Pennsylvania environmental groups are dissatisfied with an agreement that the Allegheny County Health Department and U.S. Steel finalized earlier…
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U.S. Steel, Allegheny County Health Department Finalize Air Pollution Settlement Agreement and OrderThe Allegheny County Health Department has reached a final settlement agreement and order with U.S. Steel over air pollution violations at the Clairton…
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Allegheny County Health Department officials have again issued fines against U.S. Steel for air pollution and permit violations that occurred at U.S.…
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Air quality activists protested at the City County Building in downtown Pittsburgh, before Friday’s Allegheny County Board of Health meeting, to voice…