Looking at the NOAA HMS Smoke and Fire Product (top left), the small red dots indicate a clump of fires in the Southeast centering around Georgia. The HMS, however, is not picking up any significant plumes with these fires. Comparing this to the AOD image courtesy of MODIS Terra (top right), one can see there is not much elevation in the AOD in this region either, which is in accordance with the calm weather over much of the United States today.
The EPA AIRNow combined AQI loop (bottom left) shows moderate AQIs throughout the Great Lakes and the Northeast. The high AQI for today was Indianapolis, IN (86). Most of the combined AQI is these areas are due to PM 2.5. Looking at the OMI NRT tropospheric NO2 column, one can see that the place of moderate AQIs correspond to increased levels of NO2. Thus, as John stated yesterday, it seems as though this has affected the air quality of the East today.