One-hour standard and monitoring should provide greater protection to people living near sulfur dioxide dischargers.
The Pesticides General Permit would require operators to use the lowest effective amount of pesticide, prevent leaks and spills, calibrate equipment and look for and report adverse incidents.
The assessment will help determine the level of risk formaldehyde poses to Americans' health.
The Texas Commission on Environmental Quality says it will continue to monitor air quality in the area so that longer term data will be available to make even more informed conclusions.
Five lucky communities would share $800 million to deploy 700,000 electric vehicles within six years.
The Northwest Arkansas Conservation Authority will use the funds for a portion of the engineering and final design phase of a conveyance system.
Gulf Chemical & Metallurgical Corporation pleaded guilty to 11 felony violations of Texas Water Code and will pay a $2.75 million fine.
Agency schedules listening sessions in June and July to get feedback on possible modifications to NPDES permits.
Shortened schedule has state agency holding meetings before the federal standard is finalized.
EPA reviewed state data to find that a legally significant number of spikes did not come from regional dust storms; Arizona could lose transportation funding.
EPA ordered the company to comply in 2008, but Promet did not respond to the issues until late 2009, according to the agency.
U.S. District Court judge orders company to serve three years of probation and implement an environmental compliance plan.
Four years after the National Academy of Sciences completed its review of EPA's draft dioxin reassessment, the agency responds with answers and new information.
Strategic Plan won't be finalized until September, so adjustments may be needed.
EPA shields small businesses and farms from New Source Review requirements.
State, city, county, and others work together to reduce tiny particle levels.
Hydrofluorocarbons, which replaced chlorofluorocarbons to protect the ozone layer, are now contributing to climate change.
President's Cancer Panel notes that while the problem is not new, the awareness of a lack of government action has grown.
The Puerto Rico Aqueduct and Sewer Authority also will pay a $1 million civil penalty and spend an additional $2.5 million to improve lake water quality.
Reps. Markey and Moran charge EPA to test 100 chemicals over four years and determine their impact on humans.