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EPA

Air Toxics – Non-Cancer Risk by Census Tract
2 Sep 2025

Air Toxics – Non-Cancer Risk by Census Tract

by johnsonange | | 0

Layer displays the modeled non-cancer risk associated with air toxics exposure. A hazard index (HI) of 1 or lower means air toxics are unlikely to cause adverse noncancer health effects over a lifetime of exposure.

Real-time Air Quality Index (AQI) – Ozone and Particulate Matter
2 Sep 2025

Real-time Air Quality Index (AQI) – Ozone and Particulate Matter

by johnsonange | | 0

This US EPA feature layer is updated hourly and reflects the latest hour of air quality data received from each monitoring site that reports to AirNow. The concentration and AQI values are for Ozone and Particulate Matter (PM) only. Air … Continued

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