"Chile's salmon farmers are using record levels of antibiotics to treat a virulent and pervasive bacteria, driving away some U.S. retailers including Costco Wholesale Corp, which is turning to antibiotic-free Norwegian salmon."

"The D.C. Circuit Court of Appeals has upheld an Environmental Protection Agency (EPA) rule on emissions of certain toxic air pollutants at manufacturing plants."

"Three years after federal health officials cut by half the amount of lead in a child’s blood that they said warrants medical attention, Massachusetts has yet to tighten its standards."

"Senior U.S. health officials have squelched a Food and Drug Administration proposal that for the first time would have curbed dentists’ use of mercury – one of the planet’s nastiest toxins because it attacks the central nervous system – in treating Americans’ decayed teeth."

"Microscopic bugs and mildew can destroy a marijuana operation faster than any police raid. And because the crop has been illegal for so long, neither growers nor scientists have any reliable research to help fight the infestations."

"Will the bills seeking to amend the Toxic Substances Control Act really protect Americans?"

"Air pollution in the Twin Cities contributes to about 2,000 premature deaths every year, and sends 1,000 people to the hospital for asthma, lung and heart disease treatments."

"Oregon health officials on Monday issued a consumption advisory for softshell clams dug along the state's entire coast because they contain high levels of arsenic."

"Before Freddie Gray died of spinal injuries he received in police custody, sparking weeks of protest in his native Baltimore and around the country, he was a 'lead kid,' one of thousands of children in the city with toxic levels of lead in their blood from years of living in substandard housing -- and long-term health problems as a result."