THE AIR QUALITY FORECASTS FOR NORTHERN VIRGINIA AND FREDERICK
COUNTY VIRGINIA ARE PROVIDED BY THE VIRGINIA DEPARTMENT OF
ENVIRONMENTAL QUALITY.  THE AIR QUALITY FORECAST FOR THE DC
METRO IS PROVIDED BY THE METROPOLITAN WASHINGTON COUNCIL OF
GOVERNMENTS.  AIR QUALITY FORECASTS FOR MARYLAND ARE PROVIDED
BY THE MARYLAND DEPARTMENT OF ENVIRONMENT.

DCZ001-MDZ004-009-013-016>018-VAZ042-052>054-232000-
DISTRICT OF COLUMBIA-FREDERICK MD-MONTGOMERY-PRINCE GEORGES-
CHARLES-ST. MARYS-CALVERT-LOUDOUN-
PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-
426 PM EDT WED MAY 22 2013



THE FORECAST THURSDAY FOR THE DC METRO AREA IS CODE LEVEL
GREEN...WHICH IS GOOD...AND MEANS LITTLE OR NO HEALTH RISK.
PRIMARY POLLUTANT WILL BE PARTICLES.

FOR MORE INFORMATION ON GROUND-LEVEL OZONE AND FINE
PARTICLES...VISIT WWW.CLEANAIRPARTNERS.NET.