Learn the Issues
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Smart Growth and Heat Islands
Information on how smart growth principles can be used to help reduce the heat island effect in cities
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Where does radon come from?
Radon-222 is the decay product of radium-226. Radon-222 and its parent, radium-226, are part of the long decay chain for uranium-238. Since uranium is essentially ubiquitous (being or seeming to be everywhere at the same time) in the earth's crust, radium-226 and radon-222 are present in almost all rock and…
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What is the average level of radon found in homes in the U.S.?
Based on a national residential radon survey completed in 1991, the average indoor radon level is about 1.3 picocuries per liter (pCi/L) (50 becquerels per cubic meter (Bq/m3)) in air in the United States. The average outdoor level is about 0.4 pCi/L (15 Bq/m3). Learn more about radon by visiting…
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Radon Resources
Media Resources, Publications, webinars, Hotlines, NRAM Resources, Media campaigns for TV, radio and print for radon including access to PSAs and other radon media campaigns.
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How does radon get into your home?
Any home may have a radon problem. Radon is a radioactive gas. It comes from the natural decay of uranium that is found in nearly all soils. It typically moves up through the ground to the air above and into your home through cracks and other holes in the foundation…
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Lead Designations - New Hampshire State Recommendations and EPA Responses
Lead Designations - 2008 Standards. New Hampshire State Recommendations and EPA Responses, Round 1 and 2
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Lead Designations - Missouri State Recommendations and EPA Responses
Lead Designations - 2008 Standards. Missouri State Recommendations and EPA Responses, Round 1 and 2
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Tools for State Implementation Plan (SIP) Status
Resources for checking on the status of an air quality state implementation plan (SIP).
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TSCA Section 5(a)(3)(C) Determination for Premanufacture Number (PMN) P-19-0003
This document describes EPA's pre-manufacture notice review determination under amended TSCA for P-19-0003.
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Lead Designations - Rhode Island State Recommendations and EPA Responses
Lead Designations - 2008 Standards. Rhode Island State Recommendations and EPA Responses, Round 1 and 2
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Community-Port Collaboration Toolkit
The Toolkit includes the Ports Primer for Communities, the Community Action Roadmap, and the Environmental Justice Primer for Ports along with associated training materials and worksheets.
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Lead Designations - South Carolina State Recommendations and EPA Responses
Lead Designations - 2008 Standards. South Carolina State Recommendations and EPA Responses, Round 1 and 2
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Central Metal Site Investigation
Information about the Central Metal Site Investigation, Huntington Park, CA. In 2021, EPA intends to test the soil of residential properties near the site to determine whether or not contaminated soil from the site has spread to nearby properties.
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State and Territorial Pesticide Agencies
We partner with state and U.S. territory pesticide agencies to regulate pesticides, and we fund cooperative agreements that help them implement our pesticide programs.
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Things Local Officials Should Know about Effective Water Infrastructure
A collection of important infrastructure concepts for local officials.
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Best Port-wide Planning Practices to Improve Air Quality
Best practices for port authorities include near-port community collaboration, anti-idling policies, expanding off-peak hours, development of EMS, developing an emissions inventory, education, electric power and substituting trucking for rail or barge.
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TSCA Section 5(a)(3)(C) Determination for Premanufacture Number (PMN) P-19-0032
This document describes EPA's pre-manufacture notice review determination under amended TSCA for P-19-0032.
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Population Specific Summaries
A 2021 report on Climate Change and Social Vulnerability in the United States.
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SO2 Designations - Map of Preliminary Nonattainment Designations - Feb 2013
Sulfur Dioxide Designations - Map of Preliminary Nonattainment Designations - Feb 2013
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Nitrogen Dioxide Designations Regulatory Actions
chronological listing of all regulatory actions related to designations for the 2010 nitrogen dioxide air standard.