Average concentration of fine particulate matter (PM2.5) from 8/9/18 through 8/10/18 UTC.  Classes based on standards set by U.S. Environmental Protection Agency: Good < 12 µg/m3; Moderate < 35.4 µg/m3; Unhealthy for Sensitive Groups < 55.4 µg/m3; Unhealthy < 150.4 µg/m3; Very Unhealthy < 250.4 µg/m3; and Hazardous ≥ 250.4 µg/m3.

Average PM2.5 Concentration (µg/m³) from 8/9/18 - 8/10/18 (UTC)

This layer shows fires detected on 7/25/18 with a fire radiative power (FRP) of at least 100MW.

Large Fires on 7/25/18

This layer shows fires detected on 7/29/18 with a fire radiative power (FRP) of at least 100MW.

Large Fires on 7/29/18

This layer shows fires detected on 7/31/18 with a fire radiative power (FRP) of at least 100MW.

Large Fires on 7/31/18

This layer shows fires detected on 7/28/18 with a fire radiative power (FRP) of at least 100MW.

Large Fires on 7/28/18

This layer shows fires detected on 8/6/18 with a fire radiative power (FRP) of at least 100MW.

Large Fires on 8/6/18

This layer shows fires detected on 8/7/18 with a fire radiative power (FRP) of at least 100MW.

Large Fires on 8/7/18

This layer shows fires detected on 8/8/18 with a fire radiative power (FRP) of at least 100MW.

Large Fires on 8/8/18

This layer shows fires detected on 8/1/18 with a fire radiative power (FRP) of at least 100MW.

Large Fires on 8/2/18

Large Fires on 8/1/18

This layer shows fires detected on 8/9/18 with a fire radiative power (FRP) of at least 100MW.

Large Fires on 8/9/18

This layer shows fires detected on 7/30/18 with a fire radiative power (FRP) of at least 100MW.

Large Fires on 7/30/18

This layer shows fires detected on 7/26/18 with a fire radiative power (FRP) of at least 100MW.

Large Fires on 7/26/18

This layer shows fires detected on 8/5/18 with a fire radiative power (FRP) of at least 100MW.

Large Fires on 8/5/18

This layer shows fires detected on 7/27/18 with a fire radiative power (FRP) of at least 100MW.

Large Fires on 7/27/18

This layer shows fires detected on 8/3/18 with a fire radiative power (FRP) of at least 100MW.

Large Fires on 8/3/18

This layer shows fires detected on 8/4/18 with a fire radiative power (FRP) of at least 100MW.

Large Fires on 8/4/18

Corrected Reflectance true color imagery collected on 8/9/18 by the VIIRS sensor at 750 m and 375 m resolution.

Average PM2.5 Concentration (µg/m³) from 8/9/18 - 8/10/18 (UTC)

Large Fires on 8/9/18

VIIRS Imagery 8/9/2018

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