PM2.5 Summary Data - 2011

Virginia 2011 - PM2.5 Particulate Matter Summary by Region
Method Code 118 - Gravimetric, R & P Model 2025 Sequential Micrograms Per Cubic Meter (ug/m3)

LOCATION NO. OF OBSERVATIONS BY QUARTER HIGHEST VALUE PER QUARTER QUARTERLY ARITHMETIC MEAN
I II III IV I II III IV I II III IV
SOUTHWEST REGION
BRISTOL
Highlands View Elementary School
30 30 31 21.7 20.3 21.8 9.0 10.0 12.1
VALLEY REGION
ROCKINGHAM CO.
Rockingham VDOT
30 30 28 30.4 22.8 22.2 10.3 9.2 11.2
REST 
Woodbine Road
30 30 27 28.3 26.8 20.8 10.1 9.6  11.6
LURAY
Luray Caverns Airport
29 30 30 25.6 21.2 21.8 8.4 8.6 10.5
CHARLOTTESVILLE
Albemarle High School
30 28 31 14.6 23.6 20.0 7.2 9.3 10.7
WEST CENTRAL REGION
SALEM
Salem High School
29 29 27 19.2 22.8 23.6 8.7 10.3 12.5
ROANOKE
2020 Oakland Blvd.
78 88 90 24.2 22.4 23.9 9.6 10.1 12.1
LYNCHBURG
Water Tank on
Leesville Road
28 27 28 14.8 15.3 20.9 7.4 8.6 11.1
PIEDMONT REGION
CHESTERFIELD CO.
Bensley Armory
30 31 33 15.4 22.3 23.4 8.2 9.8 10.9
HENRICO CO.
Math & Science Center
87 87 76 20.9 29.3 27.5 8.5 10.4 11.5

Virginia 2011 - PM2.5 Particulate Matter Summary by Region

LOCATION NO. OF OBSERVATIONS BY QUARTER HIGHEST VALUE PER QUARTER QUARTERLY ARITHMETIC MEAN
I II III IV I II III IV I II III IV
PIEDMONT REGION (cont.)
HENRICO CO.
Piedmont Regional Office
18 32 30 15.3* 22.1 19.5 6.9* 9.8 10.4
CHARLES CITY CO.
Route #608
30 30 27 14.4 28.3 22.6 7.1 10.1 11.6
TIDEWATER REGION
NORFOLK
NOAA Facility
30 29 29 18.3 25.5 42.2*** 8.3 10.9 14.4***
VIRGINIA BEACH
Tidewater Regional Office
84 91 83 19.2 34.5** 30.7*** 8.2 10.6** 12.1***
HAMPTON *
NASA Langley Research Center
30 30 30 14.2 25.5 52.9*** 7.0 10.1 12.7***
* Quarter did not meet EPA's minimum requirements for data capture (roof construction).  ** North Carolina Wildfires, May and June 2011 *** Dismal Swamp Fire, August 2011

Virginia 2011 - PM2.5 Particulate Matter Summary by Region

LOCATION NO. OF OBSERVATIONS BY QUARTER HIGHEST VALUE PER QUARTER QUARTERLY ARITHMETIC MEAN
I II III IV I II III IV I II III IV
NORTHERN REGION
LOUDOUN CO.
Broad Run High School
30 28 30 20.0 23.7 23.1 8.3 9.2 11.1
FAIRFAX CO.
Lee District Park
85 91 89 24.1 29.0 26.5 8.3 10.1 11.0
ARLINGTON CO.
Aurora Hills
N/A* N/A* 27 N/A* N/A* 23.5 N/A* N/A* 10.9
CITY OF ALEXANDRIA
Alexandria Health Dept.
27 29 28 25.7 26.4 22.4 9.8 10.3 10.9
* No sampling this quarter (roof construction).

 

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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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