As seen in the NOAA HMS Fire and Smoke Product (left), there is a large plume of smoke covering an area as far south as Mexico and as far north as Canada. The smoke originates from ongoing wildfires in the western United States as well as fires in northern Canada. Traveling smoke from Siberia has also reached the northern portion of Alaska. In addition, the Midwest has had a large increase in the number of active wildfires in the region, marked with red dots in the Fire and Smoke Product. Looking at the GASP EAST animation (right), higher values of AOD are associated with the smoke plume and active wildfires. A mix of haze, pollution, and smoke has also led to higher AOD values in the Great Lakes region.
Courtesy of EPA AIRNow, the daily AQI loop for Ozone and PM2.5 is below. Unhealthy AQIs were seen in the Pacific Northwest corresponding to areas where wildfires are prevalent. Moderate AQIs were also seen throughout the Midwest, Great Lakes, and Northeast.