Author(s): L.R. Johnson, B.L. Davis & D.J. Anderson
rison of high volume (TSP) and
PMio composition and PMio source
Institute of Atmospheric Sciences, South Dakota School of
Mines and Technology, 501 East St.
Joseph Street, Rapid
City, South Dakota 57701-3995, USA
The Rapid City and surrounding area within Pennington County,
South Dakota, has a history of air pollution problems, specifically
From 1980 to 1988, TSP air monitors recorded 19
violations of the 24-hour standard of 260 //gm-3.
Since the change
to the PMio standard in 1987, there have been two exceedances
of the PMio 24-hour standard of 150 //grrr3, both occurring in
The South Dakota Department of Environment and Natural
Resources informed EPA and the Pennington County Air Quality
Board of an exceedance of the annual mean of 50 //grn'3 in 1990.
Air monitor filters collected from January 1987 through
September 1989 represent collocated P...
Size: 698 kb
Paper DOI: 10.2495/AIR930411
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