The 7-News I-Team collected samples from suburban homes and businesses to the halls of the U.S. Capitol and even out of the faucets at the headquarters of the agency in charge: the EPA.

EPA: DC Circuit should reject calls to halt power plant rule. By Niina H. Farah, Lesley Clark | 06/12/2024 01:16 PM EDT . Industry groups and red states are expected to seek Supreme Court relief ...