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Passive measurement of coarse particulate matter, PM10-2.5.

Authors
Ott-DK; Cyrs-W; Peters-TM
Source
J Aerosol Sci 2008 Feb; 39(2):156-167
NIOSHTIC No.
20040534
Abstract
This work developed a passive sampling method to measure ambient PM10-2.5. The coefficient of variation (CV) of PM10-2.5 measured with collocated passive samplers was 20.1% in laboratory tests and 11.6% in field tests. PM10-2.5 measured passively deviated from that measured with a filter-based dichotomous sampler by 29% in field tests. The strong correlation between PM10-2.5 derived passively with the dichotomous sampler (r=0.97) suggests that the bias observed in field tests was systematic and may be empirically corrected. The limit of detection of the method was determined to be 2.3 microm-3 for a 5-day sample. A bootstrap analysis suggests that at least 300 particles should be imaged to stabilize the analytical variability of the method. Repeated analysis suggests that the CV for the analytical method is 5%. This method offers an inexpensive means to assess PM10-2.5 that may be incorporated into compliance networks or epidemiological studies.
Keywords
Sampling; Sampling-methods; Exposure-levels; Exposure-limits; Particulates; Particulate-dust; Statistical-analysis; Respirable-dust; Respiration; Respiratory-irritants; Aerosols; Aerosol-particles; Author Keywords: Passive sampling; Coarse particulate matter; PM10-2.5; Aerosol
Contact
Thomas M. Peters, Department of Occupational and Environmental Health, The University of Iowa, 102 IREH, 100 Oakdale Campus, Iowa City, IA 52242
CODEN
JALSB7
Publication Date
20080201
Document Type
Journal Article
Email Address
thomas-m-peters@uiowa.edu
Funding Type
Grant
Fiscal Year
2008
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-T42-OH-008491
Issue of Publication
2
ISSN
0021-8502
Source Name
Journal of Aerosol Science
State
IA
Performing Organization
University of Iowa
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