"More criminal charges will be announced Friday in the Flint drinking water investigation, Attorney General Bill Schuette's office announced late Thursday."

"AMBLER, Pa. -- U.S. EPA's Greg Voigt opens a chain-link gate, pushes aside waist-high weeds and scrambles to the highest point in this Philadelphia suburb: a 100-foot pile of industrial waste."

"In the first update to the state’s water quality standards in 24 years, the state moved to allow more toxic substances to enter the water. Environmentalists decry, and businesses support, the proposal."

"Democrats will highlight the Flint, Mich., water crisis during the third night of the Democratic National Convention on Wednesday."

"A mysterious green residue started coating golfers’ shoes last spring at Rye Golf Club. Players joked about wiping the  gunk off, but angry questions mounted as the lush course transformed into a field of dustbowls."

"Health experts in Brazil have a word of advice for the Olympic marathon swimmers, sailors and windsurfers competing in Rio de Janeiro’s picture-postcard waters next month: Keep your mouth closed."

"GRASSY NARROWS FIRST NATION—For more than 40 years the mercury has percolated through river sediment, the food chain and generations of residents."

"Asbestos, bisphenol A, phthalates and various flame retardants should be among the first 10 chemicals evaluated by the Environmental Protection Agency under the amended Toxic Substances Control Act, an Environmental Working Group report urges."

"A Brandeis University report found that 10 Black women's hair salons in Boston were suffering from poor air quality."