November 8, 2013

Good air quality; elevated NO2 values

The air quality across the United States was generally good today. Looking at the NOAA HMS Smoke and Fire Product (top left), the small red dots indicate clumps of fires in the Pacific Northwest, Canada, and much of the Southeast. No significant plumes were seen, however, and there were no large areas of elevated AOD seen in the MODIS Aqua satellite image (top right).

The EPA AIRNow combined AQI loop (bottom left) shows moderate AQIs along the West Coast and the Great Lakes, although Southern California also reached unhealthy AQI values for a time this afternoon. Most of the aerosols are due to PM2.5, and the current high is in the City of Butte, AK (105). The bottom right image is courtesy of OMI, illustrating elevated levels of NO2 in Southern California that could contribute to the Great Lakes and West Coast's AQIs, while the fires in the Southeast seem to not be affecting air quality very much.

Posted by Graham Antoszewski at November 8, 2013 7:09 PM
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