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Passive measurement of coarse particulate matter, PM10-2.5.
Ott DK; Cyrs W; Peters TM
J Aerosol Sci 2008 Feb; 39(2):156-167
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.
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
Thomas M. Peters, Department of Occupational and Environmental Health, The University of Iowa, 102 IREH, 100 Oakdale Campus, Iowa City, IA 52242
Issue of Publication
Journal of Aerosol Science
University of Iowa
Page last reviewed: November 6, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division