Learn the Issues

Petroleum Vapor Intrusion

One type of vapor intrusion is PVI, in which vapors from petroleum hydrocarbons such as gasoline, diesel, or jet fuel enter a building. Intrusion of contaminant vapors into indoor spaces is of concern.

Chemical Manufacturers, Importers, and Exporters: Frequent Questions

Chemical manufacturers, importers, and exporters are required to operate within a system of allowances. This information will help those in the chemical industry understand their role in the phaseout of HCFCs in the United States.

Final Clean Air Visibility Rule Will Restore Visibility in America's National Parks and Wilderness Areas

EPA has proposed an emissions trading program to help state and tribal governments improve visibility in national parks and wilderness areas.

Final Action to Address Regional Haze - 2012

Benefits, Impacts, and Studies of Preventing and Cleaning Up UST Releases

Learn about the benefits of EPA’s UST program in preventing and cleaning up UST releases.

2020 Air Emissions Data

Links to all things 2020 NEI, on how to get data

News from the Center for Environmental Finance - Volume 4, Issue 1 - February 2014

The Green Infrastructure Summit Brings Together Communities that are advancing green infrastructure programs and to engage in dialogue surrounding implementation opportunities and obstacles.

EPA Finalizes Emissions Trading Program Helping State and Tribal Governments Improve Visibility in National Parks and Wilderness Areas

EPA has finalized an emissions trading program to help state and tribal governments improve visibility in national parks and wilderness areas.

1999 Regional Haze Rule for Protection of Visibility in National Parks and Wilderness Areas

Recommended Area Designations for the 2012 National Air Quality Standards for Fine Particles - Aug 2014

In response to recommendations from state and tribal representatives, EPA sent letters outlining the areas it’s intended designations for the annual fine particle air quality standards set in 2012.

EPA Finalizes Initial Area Designations for the 2012 National Air Quality Standard for Fine Particles - Dec 2014

After considering state and tribal recommendations, reviewing the most recent certified fine particle air quality data, and emissions that contribute fine particle pollution, EPA has completed initial designations for the 2012 annual fine particle standard

EPA Establishes Additional Final Area Designations for the 2012 Annual Fine Particle Standard for Areas in Georgia and Florida

EPA issues initial designations for certain areas in Georgia and Florida for the 2012 primary annual national ambient air quality standard for fine particle pollution.

Additional Final Area Designations and Technical Amendment for the 2012 Annual Fine Particle Standard Established in 2012 - March 2015

EPA is establishing or revising initial area designations and a technical amendment to correct an inadvertent error in the initial designation for one area for the 2012 annual national ambient air quality standards for fine particle pollution.

Anadarko Petroleum Corp. - Eastern Gulf of Mexico Outer Continental Shelf (OCS) Final Permit Documents Issued By EPA Region 4

Anadarko Petroleum Corp. - Phoenix Prospect Outer Continental Shelf (OCS) Final Permit Documents