December 20, 2013

Elevated AQIs in Northeast

Looking at the NOAA HMS Smoke and Fire Product (top left), the small red dots indicate clumps of fires in the Southeast and California. The MODIS satellite retrievals were hindered by satellite cover, yet the MODIS AOD trajectories illustrate not only some elevation in current AOD off the coast of California, but also higher AOD values moving east from the Midwest over the next two days. The current elevation corresponds to the aforementioned fires in California.

The EPA AIRNow combined AQI loop (bottom left) details moderate AQIs across the United States, particularly the Northeast. Some Unhealthy for Sensitive Groups were seen today in several spots including the California-Oregon border and the Rocky Mountains, and today's high AQI is in Lehigh Valley, PA (146). The OMI NRT tropospheric NO2 column (bottom right) sees high concentrations of NO2 in the Northeast, and this combined with some remnant smoke riding the wind up the East Coast from the fires in the Southeast could be to blame for the poor air quality in the region. Combining this with the MODIS trajectories, the Northeast could see poor air quality for tomorrow as well.

Posted by Graham Antoszewski at December 20, 2013 7:28 PM
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