Data and Tools

Green Book 8-Hour Ozone (1997) Area Information - NAAQS Revoked

8-Hour Ozone (1997)

Green Book PM-2.5 (1997) Area Information

PM-2.5 (1997)

Green Book PM-2.5 (2006) Area Information

PM-2.5 (2006)

Green Book 1-Hour Ozone (1979) Area Information - NAAQS Revoked

1-Hour Ozone Areas (1979)

Green Book Lead (2008) Area Information

Lead (2008)

Green Book Sulfur Dioxide (2010) Area Information

Sulfur Dioxide (2010)

Green Book PM-10 (1987) Area Information

PM-10 (1987)

Green Book 8-Hour Ozone (2008) Area Information

8-Hour Ozone (2008)

Green Book Carbon Monoxide (1971) Area Information

Carbon Monoxide (1971)

EnviroAtlas is a web-based decision support tool that combines maps, analysis tools, downloadable data and informational resources that states, tribes and communities can use to help inform policy and planning decisions impacting their surroundings.

Rapid Benefit Indicators (RBI) Webinar Archive

RBI process for assessing restoration sites using non-monetary benefit indicators. The RBI approach uses readily-available data to estimate and quantify benefits to people around an ecological restoration site using indicators of nature’s value to people.

The Growing Public Health Impact of Wildfire Smoke Emissions Webinar Archive

This is a brief discussion of wildfire smoke and its health effects along with tools available to provide public health guidance during wildfire events, including the Wildfire Smoke Guide for Public Health Officials

Health Impacts of Near Roadway Air Pollution and Mitigation Strategies Webinar Archive

Webinar on the latest science on the health impacts from near roadway exposures and discuss solutions and programs that states & community and transportation planners can consider to protect public health from the health impacts of near roadway exposures.

Revised Total Coliform Rule Seasonal Startup Checklist

This RTCR form provides start-up procedures for drinking water systems that shut down and depressurize and are not operational year around.

Explore the Automotive Trends Data

Explore and download summary data with interactive figures and tables for the automotive trends report.

How does PM2.5 relate to PM species such as EC, OC, SO4, NO3, PMFINE, and DIESEL-PM25?

Primary PM2.5 estimates are speciated into the five PM species in the NEI: elemental (black) carbon (EC), organic carbon (OC), nitrate (NO3), sulfate (SO4), and the remainder of PM25-PRI (PMFINE). Diesel engine PM25-PRI and PM10 emissions are also labeled as DIESEL-PM25 and DIESEL-PM10 for mobile source diesel engines. For all…

Last published: March 27, 2025

Good Neighbor Plan for the 2015 Ozone NAAQS - Compliance for Industrial Sources

Compliance requirements for industrial sources subject to the Good Neighbor requirements for the 2015 ozone NAAQS.