Two fires at the U.S. Steel Mon Valley Works facility near Pittsburgh, PA in December 2018 and 2019 resulted in the release of pollutants, including hydrogen sulfide, benzene, and coke oven gas into the air. Following air monitoring that revealed increased levels of the pollutants, in compliance with its Clean Air Act permits and regulations, U.S. Steel reported the fires and emissions to the Allegheny County Health Department—the local governmental arm that enforces the Clean Air Act.
Notwithstanding, the Clean Air Council, a nonprofit environmental …
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