Home > USA > Maryland > Prince George S County > National Harbor
Primary air pollutant in the National Harbor area:
OZONE - 22 Good
Enjoy your outdoor activities.
Brisk northerly winds will usher in another round of cold Canadian air Saturday, resulting in Good air quality that will persist through Sunday. Winds will subside into Monday, with weaker vertical mixing as high pressure settles overhead. An uptick in fine particle concentrations is expected, though Good air quality should persist as the regional air quality modifies from pristine conditions. Into the middle of next week, including Christmas Eve and Day, weak vertical mixing and a relatively moist atmosphere will allow fine particles to climb into the Moderate AQI range, particularly where any wood stove/fireplace burning is prevalent. For the latest air quality information, please visit our website here. -MDE
Primary Pollutant: PM2.5 - 22 Good
Primary Pollutant: PM2.5 - 44 Good
Primary Pollutant: PM2.5 - 53 Moderate
Primary Pollutant: PM2.5 - 53 Moderate