"Facing a chronic problem of raw sewage emptying into city waterways during rainfalls, and struggling to meet health regulations, New York City environmental officials are turning to a new method of treating bacteria in sewage: dumping chlorine into sewer pipes leading to the waterways."

"Environmental advocates are bracing for potentially 'catastrophic' changes to U.S. Environmental Protection Agency regulations that protect children from dangerous lead exposure across the country. Advocates say if the agency moves forward with its plans to repeal or replace programs that regulate hazardous lead levels, lead poisoning prevention efforts would be set back decades."

"A federal judge ruled on Wednesday that ExxonMobil Corp should pay a $19.95 million penalty for pollution from its Baytown, Texas, refining and chemical plant complex between 2005 and 2013."

"Dozens of Texas politicians and business leaders are urging President Donald Trump to commit $15 billion toward protecting the Houston area from a devastating hurricane."

"Contamination from former or current military installations has ignited a nationwide review of water on or around bases that used a firefighting foam containing toxic chemicals."

"In 1945, the American Chemical Paint Company introduced its product Weedone, the first herbicide ever to hit the market that killed broad-leaved plants but not grasses. On farms, the weedkiller reduced the need for pulling weeds in grain fields, a godsend during the post-war labor shortage."

"The U.S. Air Force says it won't provide safe drinking water to Oscoda residents affected by chemical pollution from the former Wurtsmith Air Force Base because a Michigan law seeking that is discriminatory."

"Canada's food regulator has found traces of a controversial pesticide in nearly one-third of food products — and residue levels above the acceptable limits in about four per cent of grain products."

"The Trump administration has hit the pause button on an Obama-era regulation aimed at limiting the dumping of toxic metals such as arsenic and mercury by the nation’s power plants into public waterways."