March 28, 2014

Moderate AQIs for the US, elevated Sulfates for east

While the NOAA HMS Fire and Smoke Product did not pick up any fires significant enough to produce a plume, the MODIS Terra image (top left) illustrates elevated AOD in the Southwest, Great Lakes, and off of the East Coast. The EPA AIRNow combined AQI loop (top right) shows moderate AQIs throughout the United States today, with only a small area of Unhealthy AQIs this afternoon in Southern California. Thus, at least the elevated AODs are not contributing to significant changes in AQI in these areas.

The NRL NAAPS Sulfate concentration (bottom left) shows predicted elevated values in the Great Lakes, Northeast, and California for today. This may contribute to the moderate AQIs for these regions, as NO2 concentrations were not as significant. To look to future air quality concerns, the MODIS AOD trajectory (bottom right) shows elevated AOD to move in behind storm systems in both the Pacific Northwest and moving up the East Coast, but for us this hopefully means better air quality once the rain subsides, allowing for spring to finally pop up from underneath the immense weight of this winter's weather.

Posted by Graham Antoszewski at March 28, 2014 6:42 PM
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