Science & Technology

Carbon Monoxide (CO) Standards - Planning Documents from Current Review

Scientific and technical planning documents used to develop the current carbon monoxide national ambient air quality standard.

The Verification of a Method for Detecting and Quantifying Diethylene Glycol, Triethylene Glycol, Tetraethylene Glycol, 2-Butoxyethanol and 2-Methoxyethanol in Ground and Surface Waters

peer reviewed EPA Report on Verification of Glycols Method

Carbon Monoxide (CO) Standards - Response to Comments from Current Review

Response to comments used to develop the current carbon monoxide national ambient air quality standard.

Carbon Monoxide (CO) Standards - Policy Assessments from Current Review

Scientific and technical policy assessments used to develop the current carbon monoxide national ambient air quality standard.

Carbon Monoxide (CO) Standards - Risk and Exposure Assessments from Current Review

Scientific and technical risk and exposure assessments used to develop the current carbon monoxide national ambient air quality standard.

Lead (Pb) Standards - Policy Assessments from Review Completed in 2016

Scientific and technical policy assessments used to develop the current lead national ambient air quality standard.

Particulate Matter (PM) Standards - Planning Documents from Current Review

Scientific and technical planning documents used to review and develop the particulate matter national ambient air quality standard.

Sulfur Dioxide (SO2) Primary Air Quality Standards - Federal Register Notices from Current Review

Federal Register notices used to review and develop new sulfur dioxide (SO2) primary standards

Sulfur Dioxide (SO2) Primary Standards - Planning Documents from Current Review

Scientific and technical planning documents used to review and develop new sulfur dioxide primary national ambient air quality standards.

International Emissions Inventory Conference

Emission inventory conference forum for exchange of ideas

National Research Programs

EPA's Office of Research and Development supports six research programs that identify the most pressing environmental health research needs with input from EPA offices, partners, and stakeholders.

Lake Michigan Mass Balance Results and Publications

Mass Balance Results and Publications for Lake Michigan

Supplementary Training Materials for Aquatic Life Criteria - Copper - Monitoring and Assessment Issues

FAQs about monitoring and assessment issues to help states, Tribes, permittees and other interested stakeholders implement the Aquatic Life Ambient Water Quality Criteria for Copper.

Supplementary Training Materials for Aquatic Life Criteria - Copper - Permitting Issues

FAQs about permitting issues to help states, Tribes, permittees and other interested stakeholders implement the Aquatic Life Ambient Water Quality Criteria for Copper.

EPA Finds Perchloroethylene Poses an Unreasonable Risk to Human Health

Announcing the final unreasonable risk determination for PCE

Contact for Caño Martín Peña (Martín Peña Channel, Puerto Rico)

Contact person for the Martin Pena Channel location

News about South Platte Watershed

NDWAC 2015 Recommendations to the Administrator for the Long Term Revisions to the Lead and Copper Rule (LCR) and Past Meeting Summaries

The NDWAC Lead and Copper Rule Working Group was formed to provide advice to EPA in considering Long-Term Revisions to the Lead and Copper Rule.

This page is about the METRO tool that is part of the Global Climate Explorer set of tools using an ESRI map to display the data. It was taken offline in 2021 to be released by a newer tool. See the 2017 Final Report for more details on using METRO.