3M

The lawsuit, filed in the U.S. District Court for the District of Connecticut, claims firefighters have gotten sick from the PFAS chemicals used to keep their gear fire retardant — and that manufacturing companies, including 3M and DuPont, knew that the materials were dangerous and did not warn users.

About a quarter million troops and veterans have signed on as plaintiffs in litigation claiming the "Combat Arms" earplugs — manufactured by a 3M subsidiary — damaged their hearing.

The Town of Riverhead, Long Island, has filed a suit against three companies for allegedly contaminating the town’s drinking water supply.The town claims…