"DALLAS - Suffering from the nation's deadliest outbreak of West Nile virus this year, Dallas County authorized aerial spraying of insecticide on Friday for the first time in nearly five decades to help fight the mosquito-born illness."

"Millions of Americans may be drinking water that is contaminated with dangerous doses of lead. The Environmental Protection Agency (EPA) knows it; state governments know it; local utilities know it. The only people who usually don’t know it are those who are actually drinking the toxic water."

"GHENT -- The head of a Columbia County chemical recycling company whose plant was destroyed in an inferno last week knows hundreds of gallons of toxic hazardous PCBs were at the site before the fire, but won't know how much burned until the tangled wreckage can be examined."

"LOS ANGELES -- A Los Angeles Superior Court judge has dismissed a lawsuit brought by nearly 3,000 Filipino workers claiming injury from pesticide exposure while worked for Dole Food Co."

"The damage caused by a fire at the Chevron refinery in Richmond will take months to repair and will hobble one of the West Coast's biggest sources of fuel, industry experts said Wednesday."

"WASHINGTON -- Regulators should take a fresh look at 15-year-old standards on radiofrequency energy from mobile phones, an investigative arm of the Congress said on Tuesday amid lingering concerns the devices may cause brain tumors."

"RALEIGH, N.C. -- President Barack Obama signed a bill Monday promising health benefits for Marines and families who were exposed to contaminated water at a North Carolina Marine base for decades."

"Baltimore's public housing agency announced Monday it has paid $3.7 million to a former public housing resident who suffered lead-paint poisoning as a young child in the 1980s."

"An increase in swine flu cases has the Centers for Disease Control and Prevention warning Americans to be especially careful around state and county fairs this summer."