Data and Tools

RadNet Air Filter Analysis Results From Oklahoma City, OK

This page presents radiation air filter analysis data for Oklahoma City, OK from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.

RadNet Air Filter Analysis Results From Tulsa, OK

This page presents radiation air filter analysis data for Tulsa, OK from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.

Supplemental Data from the 2023 Anaerobic Digestion of Food Waste in the U.S. Survey Results

This page contains two detailed matrix tables of supplemental data from the Anaerobic Digestion Facilities Processing Food Waste in the U.S. survey (2020 & 2021).

RadNet Air Filter Analysis Results From Orono, ME

This page presents radiation air filter analysis data for Orono, ME from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.

RadNet Air Filter Analysis Results From Shreveport, LA

This page presents radiation air filter analysis data for Shreveport, LA from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.

RadNet Air Filter Analysis Results From Baton Rouge, LA

This page presents radiation air filter analysis data for Baton Rouge, LA from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.

RadNet Air Filter Analysis Results From Paducah, KY

This page presents radiation air filter analysis data for Paducah, KY from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.

RadNet Air Filter Analysis Results From Corvallis, OR

This page presents radiation air filter analysis data for Corvallis, OR from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.

RadNet Air Filter Analysis Results From Portland, OR

This page presents radiation air filter analysis data for Portland, OR from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.

RadNet Air Filter Analysis Results From Bloomsburg, PA

This page presents radiation air filter analysis data for Bloomsburg, PA from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.

EPA Science Models and Research Tools (SMaRT) Search

EPA Science Models and Research Tools (SMaRT) Search searches ORD's methods, models, and tools database.

RadNet Air Filter Analysis Results From Philadelphia, PA

This page presents radiation air filter analysis data for Philadelphia, PA from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.

RadNet Air Filter Analysis Results From Pittsburgh, PA

This page presents radiation air filter analysis data for Pittsburgh, PA from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.

RadNet Air Filter Analysis Results From San Juan, PR

This page presents radiation air filter analysis data for San Juan, PR from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.

Exceptional Events Documents SO2 - Kona, HI

PDF documents associated with SO2 exceptional events for Kona, HI.

Do all AQI plots use the most current AQI breakpoints - regardless of which year you request?

Yes, every AQI summary from AirData is based on the current AQI breakpoints, regardless of year. See 40 CFR Part 58 Appendix G and the AQI Technical Assistance Document for details. Return to Frequent Questions about AirData

Last published: June 25, 2026

How is the AQI calculated?

Refer to the AQI Technical Assistance Document for equations on how to calculate the AQI from pollutant concentration. Return to Frequent Questions about AirData

Last published: June 25, 2026