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Data and Tools

Ozone Trends

National and regional trends in ambient ozone concentrations.
Lead Trends

National and regional trends in lead concentrations.
Particulate Matter (PM10) Trends

National and regional trends in ambient PM10 and PM2.5 concentrations.
Nitrogen Dioxide Trends

National and regional trends in ambient NO2.
Particulate Matter (PM2.5) Trends

National and regional trends in ambient PM10 and PM2.5 concentrations.
Sulfur Dioxide Trends

National and regional trends in ambient SO2 concentrations.
Carbon Monoxide Trends

National and regional trends in carbon monoxide.
Previous Air Quality Trends Reports

Link to archive of historical air quality trends reports
Air Quality - Cities and Counties

City and County tables of air quality data - status and trends.
Ambient Air Toxics Trends Tool

This application is an expansion of the Air Trends Report displaying the annual ambient air toxics monitoring trends.
Power Sector Data

List of the major power sector emissions data, tools, and resources used by the Clean Air Markets Programs.
Allowance Data

List of the major allowance data tools and resources used by the Clean Air Markets Programs.
Documentation for Risk-Screening Environmental Indicators (RSEI) Geographic Microdata (RSEI-GM)

information on the RSEI Geographic Microdata, which are a unique dataset that provides detailed air model results from the RSEI model at a level of 810 meter square grid cells
2013 TRI National Analysis Basic Data Files

The top 100 requested data fields from TRI Reporting Form R and Form A are included in each basic data file.
Examples of Incorrect Web-distributed Labeling

Examples of improper web-distributed labeling.
ECM for Trifludimoxazin and M850H001 in Soil - MRID 51207301

ECM for Trifludimoxazin and M850H001 in Soil - MRID 51207301
ECM for Pyriofenone in Water - MRID 49256133

These documents include the analytical method for pyriofenone in water, an independent laboratory validation of the method, and EPA's evaluation of the method and validation.
ECM for Thiamethoxam in Dust - MRID 49158921

ECM for Thiamethoxam in Dust - MRID 49158921
ECM for Methomyl in Soil - MRID 42288001

Environmental Chemistry Methods for Methomyl in Soil - MRID 42288001
ECM for Prothioconazole & Degradates in Soil - MRID 46246531

ECM for Prothioconazole & Degradates in Soil - MRID 46246531

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