The air quality will likely be similar to what we have observed yesterday; hazy conditions will persist. Summer conditions [high temperatures (intense sunlight) + specific chemical constituents + humid conditions = haze] help perpetuate the hazy conditions that we are used to this time of year. Particulates like sulfates and nitrates absorb water and grow, sometimes tripling in size affecting our visibility and contributing to haze. So you're probably wondering what is our relative humidity? The MET station at UMBC provides an estimate. Also, check EPA AIRNow for current PM2.5 maps.
NOAA and EPA have produced a tropospheric ozone forecast map for the East coast using a photochemical model. Ozone levels will remain elevated over most of the East.
Stay linked to the blog for a report on the nation’s air quality.
