Three residents of Jersey City, New Jersey filed a class action lawsuit against Honeywell International and PPG Industries for health problems that allegedly arose or could arise from the presence of hexavalent chromium residue in sites located in the area. They alleged that, for several decades, Honeywell (as successor corporation to Mutual Chemical Company of America) and PPG (as successor corporation to Pittsburgh Plate Glass Company and Natural Refining Company) discharged or deposited hexavalent chromium and other chromium residues at numerous sites in Jersey City. Hexavalent chromium and a by-product called chromium ore processing residue (COPR) have been implicated as a potential cause of lung cancer in those who suffer long-term exposure. In November 2014, Honeywell settled the lawsuit for $10 million and no admission of liability or wrongdoing.