EPA's AirData website provides access to annual summaries of ambient air monitoring data and air pollutant emissions estimates.

Quick access to "what's new this week," "breaking news," and "hot topic" air & radiation information. Gateway to Air Pollution Information.

Information about common indoor asthma triggers and how to avoid them. Get the latest news from the Environmental Protection Agency on how to help you or your child's asthma.

Miles per gallon (mpg) information from vehicle testing done at the EPA's National Vehicle and Fuel Emissions Laboratory and by vehicle manufacturers.

Senior-level policy committee established in 1990 to advise the U.S. EPA on issues related to implementing the Clean Air Act Amendments of 1990.

Information on CAIR including regulatory and emission information.

Working to significantly reduce electric utilities' emissions of the pollutants responsible for acid deposition. Includes a system of tradable SO2 emissions allowances: a landmark use of market incentives in environmental protection.

Air pollution from motor vehicles, fuels, and nonroad equipment. Formerly Office of Mobile Sources.

Provides detailed information to the various EPA programs associated with radiation protection activities.

Reduces greenhouse gases through energy-efficiency and cost-effective partnerships with industries in all sectors of our economy where emissions reductions can be achieved.

Regulatory information, access to transportation and mobile source incentive-based program information and tools, technical assistance, and other information on preventing/reducing air pollution from transportation.

Information on secondhand smoke.

The Indoor Environments Division (IED) coordinates research and develops and implements policies regarding the impact of indoor air pollutants on the general public.

Engages developing countries to build support for integrated planning to both address local environmental concerns and, secondarily, reduce associated global greenhouse gas emissions.

Blue Ribbon Panel for reviewing the use of MTBE and other oxygenates in gasoline.

A comprehensive environmental laboratory applying advanced methods for measuring environmental radioactivity.

Federal Government's principal program to control air pollution from motor vehicles. Primary responsibilities include developing programs to reduce mobile source related air pollution; evaluating emission control technology; testing vehicles, engines, and fuels; and determining compliance with Federal emissions and fuel economy standards.

Deals with issues that affect the quality of our air. OAR develops national programs, technical policies, and regulations for air pollution control. Areas of concern to OAR include: indoor and outdoor air quality, stationary and mobile sources of air pollution, radon, radiation protection, acid rain, stratospheric ozone depletion, and pollution prevention.

Information about the science of ozone depletion, regulations in the US designed to protect the ozone layer, and information for the general public.

Helps educators raise sun safety awareness for grades K-8.

Information on manufacturers and retailers for energy-efficient electronics, lighting, transformers, appliances, office equipment, and heating/cooling systems.

Information on the Mercury Rule including information on the benefits, regulatory actions, and technical information.

Ranks vehicles according to the EPA emission standards that the vehicles have been designed to meet throughout their lifetime.