"Voters in the city of Wichita rejected fluoridated water on Tuesday, as they did in 1964 and 1978."

"How the industry kept scientists from asking: Does sugar kill?"

"PHILADELPHIA -- Pennsylvania officials reported incomplete test results that omitted data on some toxic metals that were found in drinking water taken from a private well near a natural gas drilling site, according to legal documents released this week."

"Federal regulators have announced the results of a September inspection blitz targeting 13 coal mines in seven states 'previously cited for violations regarding respirable dust sampling ... inadequate dust control ... and hazard complaints' involving excessive coal dust."

"BEIJING — A week of protests against the planned expansion of a petrochemical plant in the port city of Ningbo turned violent on Friday and Saturday when demonstrators attacked police cars and tossed bricks and water bottles at officers, according to accounts from participants posted on the Internet."

"Heart attacks dropped by one-third in one county in Minnesota after two smoke-free workplace ordinances went into place, a new study shows."

"Despite sweeping reform of food safety laws intended to make what we eat less dangerous, the number of Americans falling ill or dying from contaminated food has increased 44% since last year, according to a report released Wednesday."

"Researchers say that some chemicals have unexpected and potent effects at very low doses — but regulators aren't convinced."

"Pollution from factories and mines is putting the health of 125 million people at risk worldwide and is as dangerous in the developing world as malaria or tuberculosis, according to a report published on Tuesday by two environmental advocacy groups."