作者
Jianjun Niu, Pat E Rasmussen, Amanda Wheeler, Ron Williams, Marc Chénier
发表日期
2010/1/1
期刊
Atmospheric Environment
卷号
44
期号
2
页码范围
235-245
出版商
Pergamon
简介
Factors and sources affecting measurement uncertainty associated with monitoring metals in airborne particulate matter (PM) were investigated as part of the Windsor, Ontario Exposure Assessment Study (WOEAS). The assessment was made using co-located duplicate samples and a comparison of two analytical approaches: ED-XRF and ICP-MS. Sampling variability was estimated using relative percent difference (RPD) of co-located duplicate samples. The comparison of ICP-MS and ED-XRF results yields very good correlations (R2 ≥ 0.7) for elements present at concentrations that pass both ICP-MS and ED-XRF detection limits (e.g. Fe, Mn, Zn, Pb and Cu). PM concentration ranges (median, sample number) of 24-h indoor PM10 and personal PM10 filters, and outdoor PM2.5 filters were determined to be 2.2–40.7 (11.0, n = 48) μg m−3, 8.0–48.3 (11.9, n = 48) μg m−3, and 17.1–42.3 (21.6, n = 18) μg m−3 …
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J Niu, PE Rasmussen, A Wheeler, R Williams… - Atmospheric Environment, 2010