New York — A Pennsylvania environmental group announced Tuesday it has taken the initial steps to bring a lawsuit against steel manufacturing giant ArcelorMittal USA Inc. to address hundreds of ongoing Clean Air Act violations stemming from the dispersal of soot and acidic gases from a coke plant near Pittsburgh.

PennEnvironment, a non-profit with offices in Philadelphia and Pittsburgh, said in a news release Tueday that it has sent pre-suit notice letters to ArcelorMittal, as well as state and federal regulators, alleging the company’s Monessen Coke Plant is “fouling the air over a wide swath of southwestern Pennsylvania” and has showered residents in nearby towns with soot, acidic gases and noxious odors since the decades-old facility went back into operation in April 2004.

Continue reading this article at Law360