Significant smoke plumes that are detected by the satellites over the latest day.

April 09, 2026 Smoke Plume Concentration (North America)

Significant smoke plumes that are detected by the satellites over the latest 7 days.

April 03, 2026 - April 09, 2026 Smoke Plume Concentration (North America)

Most recent available past 24-hour average concentration of fine particulate matter (PM2.5) in micrograms per cubic meter (µg/m³). As of the last update, the 24-hour average is calculated based on all measurements between November 06, 2023 00:00 UTC and November 07, 2023 00:00 UTC.

Classes are based on standards set by U.S. Environmental Protection Agency and are defined as follows: Good=0.0-12.0 µg/m³, Moderate=12.1-35.4 µg/m³, Unhealthy for Sensitive Groups=35.5-55.4 µg/m³, Unhealthy=55.5-150.4 µg/m³, Very Unhealthy=150.5-250.4 µg/m³, and Hazardous=250.5-500 µg/m³.

Resource Watch

April 03, 2026 - April 09, 2026 Smoke Plume Concentration (North America)

Latest 24-hour Average PM2.5 Concentration (µg/m³)

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