"Sixteen areas, including Los Angeles, Tampa and Cleveland, have unhealthful amounts of lead in the air that violate national standards, the U.S. Environmental Protection Agency announced Tuesday."

"States with coastal water that is becoming more acidic because of carbon dioxide should list them as impaired under the Clean Water Act, the U.S. Environmental Agency said."

"New federal air quality rules, expected in the coming weeks, will likely trigger a wave of emission controls on industries in Southwest Florida, and the possibility of motor vehicle inspections."

Massachusetts has reduced its mercury emissions, but the mercury polluting its ponds may be coming from halfway around the globe.

"With state regulators required to start issuing Clean Air Act permits next year for large stationary sources of greenhouse gas emissions, the Lone Star State will be the lone holdout, according to a report released today by an association of state and local air agencies."

"With Election Day less than two weeks away and Republicans rallying around their opposition to U.S. EPA regulations, the agency is expected to wait before it tightens the nationwide limit on ozone pollution."