Not much changed in terms of air quality since yesterday. California continued to experience moderate to unhealthy levels (for sensitive groups) of PM2.5, mostly in San Joaquin Valley. MODIS Aqua shows elevated values of AOD over that same region. Moderate levels of PM2.5 were also observed in the Pacific Northwest and Northeastern states. The Northern and Northeastern portions of Utah experienced unhealthy air quality once again, both in terms of PM2.5 and ozone.
Posted by Patricia Sawamura at February 15, 2013 11:27 PM