The culprits often are one or more significant lead emitters such as smelters, iron or steel foundries, waste incinerators, utilities, or lead-acid battery manufacturers. Piston-engine planes using leaded aviation gasoline are another source.
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On Nov. 9, 2011, EPA signed a consent decree that requires the agency to receive from and approve a State Implementation Plan for DC, VI, and 43 states that don't have a fully approved one. Each state can determine how it wants to reduce haze. In some cases, the plan will rely on actions already taken, such as reductions in emissions from power plants or vehicles.
There are 464 facilities on the list of Clean Air Act violators. The Center for Public Integrity's iWatch News and National Public Radio got the list using the FOIA and published a powerful feature package: "Poisoned Places: Toxic Air, Neglected Communities." But they did not tell all the stories. They left some for you.
By Sept. 28, 2011, EPA and the US Dept. of Transportation's National Highway Traffic Safety Administration say they will jointly release proposed standards designed to significantly increase fuel mileage and reduce greenhouse gas emissions from passenger cars, light trucks, and medium-duty passenger vehicles in model years 2017-2025.
The system, proposed during the first months of the Obama administration, was delayed when it faced heavy opposition from industry groups and Republicans. In response, EPA reduced the number of businesses that need to report their emissions.
The standards were initially scheduled to be released in August 2010, then October 2010, after EPA determined that the ones approved during the George W. Bush administration weren't grounded in science, didn't protect public health with an adequate margin of safety, and didn't protect the environment.
Every U.S. resident is at elevated risk of cancer from certain toxic substances in outdoor air, and about one-quarter of all residents are possibly at risk for noncancer health effects, according to EPA's update of the National-Scale Air Toxics Assessment (NATA) released March 11, 2011.
As part of the continuing resolution (HR 1) the House approved largely along party lines an amendment sponsored by Rep. Mike Pompeo (R-KS) to cut an additional $8.5 million from the budget for EPA's Greenhouse Gas Registry.
The President's Cancer Panel singled out radon, a radioactive gas found in water systems and leaching from soil into houses via foundation cracks, as one of America's "grossly underestimated" environmentally caused cancer risks.
This guidance would provide insights and reduce threats when competing forces — such as land availability, cost, timing, vehicle and utility access, zoning, and developer cooperation — drive decision makers to build a school at a site that may pose a toxic threat to the children and staff.