PM2.5 Summary Data - 2009

Virginia 2009 - PM2.5 Particulate Matter Summary by Region
Method Code 118 - Gravimetric, R & P Model 2025 Sequential Micrograms Per Cubic Meter (ug/m3)

LOCATION 24-HOUR SAMPLING QUARTERLY
ARITHMETIC MEAN

ANNUAL
ARITH.
MEAN
NO.
OBS.
MAX
2ND
MAX
98th PERCENTILE VALUE I II III IV
SOUTHWEST REGION
BRISTOL
Highlands View Elementary School
118 28.2 20.0 19.7 10.0 8.9 10.8 7.4 9.2
VALLEY REGION
ROCKINGHAM CO.
Rockingham VDOT
120 38.7 22.1 21.7 10.7 8.5 11.1 8.7 9.8
REST
Woodbine Road
118 24.1 21.6 21.3 11.6 10.0 12.0 8.1 10.4
LURAY
Luray Caverns Airport
116 24.4 21.4 20.8 10.5 7.9 9.7 7.3 8.8
CHARLOTTESVILLE
Albemarle High School
121 21.4 18.9 17.5 8.9 8.1 10.1 6.3 8.4
WEST CENTRAL REGION
SALEM
Salem High School
121 21.7 20.9 20.0 9.4 9.8 12.0 7.6 9.7
ROANOKE
2020 Oakland Blvd.
358 24.5 24.3 20.5 9.8 8.7 11.0 8.1 9.4
LYNCHBURG
Water Tank on Leesville Road
122 21.7 19.6 18.5 8.2 8.2 10.7 6.5 8.4
PIEDMONT REGION
CHESTERFIELD CO.
Bensley Armory
116 24.8 20.5 19.0 10.0 8.5 10.8 7.7 9.2
HENRICO CO.
Math & Science Center
350 25.8 23.9 21.1 9.6 9.0 10.8 7.8 9.3

Virginia 2009 - PM2.5 Particulate Matter Summary by Region

LOCATION 24-HOUR SAMPLING QUARTERLY
ARITHMETIC MEAN

ANNUAL
ARITH.
MEAN
NO.
OBS.
MAX
2ND
MAX
98th PERCENTILE VALUE I II III IV
PIEDMONT REGION (cont.)
HENRICO CO.
Piedmont Regional Office
118 21.9 20.9 20.2 9.0 8.5 10.7 7.0 8.8
CHARLES CITY CO.
Route #608
112 20.7 20.1 18.5 8.6 9.2 10.1 6.6 8.6
TIDEWATER REGION
HAMPTON*
Va. School for the Deaf & Blind
30 18.3 16.8 18.3** 8.8 N/A N/A N/A N/A**
NORFOLK
NOAA Facility
117 19.5 18.9 17.7 9.3 8.9 11.3 8.1 9.4
NEWPORT NEWS***
Hogan Road
77 19.3 18.3 18.3** N/A 9.2 10.1 6.9 N/A**
VA. BEACH
Tidewater Regional Office
348 32.5  28.1 20.1 10.2 8.7 9.9 7.9 9.2
  *  Shut down in March 2009. **  Did not meet EPA's minimum data capture requirements.***  Installed in April 2009.

 

Virginia 2009 - PM2.5 Particulate Matter Summary by Region

LOCATION 24-HOUR SAMPLING QUARTERLY
ARITHMETIC MEAN

ANNUAL
ARITH.
MEAN
NO.
OBS.
MAX
2ND
MAX
98th PERCENTILE VALUE I II III IV
NORTHERN REGION
LOUDOUN CO.
Broad Run High School
120 28.4 21.6 20.0 10.9 8.3 10.4 7.4 9.2 
FAIRFAX CO.
Lee District Park
347 35.4 28.2 24.2 11.0 9.3 11.0 7.9 9.8
ARLINGTON CO.
Aurora Hills Visitors Center
117 40.7 23.7 23.2 12.3 8.7 11.0 8.3 10.1
FAIRFAX CO.
McLean Governmental Center
117 33.5 24.2 21.2 11.9 8.4 10.5 7.9 9.7
FAIRFAX CO.
Annandale
118 36.6 21.7 20.8 11.9 8.4 10.4 7.5 9.5
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Virginia Department of
Environmental Quality
629 East Main Street
P.O. Box 1105
Richmond, VA 23218
(804)698-4000

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