Characteristics of particles sampled in southern Taiwan during the Asian dust-storm periods in 2000 and 2001

in Sciences Citation Index(SCI), 科學引文索引資料庫(SCI)
標題Characteristics of particles sampled in southern Taiwan during the Asian dust-storm periods in 2000 and 2001
出版類型SCI(Sciences Citation Index)
出版年度2004
AuthorsSJ Chen, S. J. C., LT Hsieh L. T. H., MJ Kao M. J. K., Shui-Jen Chen W. Y. L., & Kuo-Lin Huang 黃國林
開始頁5925
頁數9
出版日期2004 / 11
其他編號0000
中文摘要

Intensive field samplings followed by laboratory measurements were performed to characterize the particles collected
at urban and rural sites in southern Taiwan during the Asian dust storm (ADS) periods in 2000 and 2001. These
particles were size-resolvedly (cut sizes of eight-and ten-stages) sampled by two side-by-side micro-orifice uniformdeposited
impactors (MOUDI). Results showthat the concentrations of PM2.5, PM2.5–10 and PM10 increased during the
ADS periods and these PM10 concentrations, 4150 mgm3, were roughly 2 to 3 times higher than the average PM10
concentrations measured in non-ADS periods. The concentrations of particle-bearing water-soluble ions including four
crust-related species (Ca2+, Mg2+, Na+, and K+), three secondary aerosol-associated species (SO4 2 , NO3, and NH4
+),
and one sea-connected species (Cl) increased and their size distributions changed during the ADS periods in
comparison with those during non-ADS periods, implying that they were partially from foreign sources. This supports
the increasing health concerns for ADS. The SO4 2  had a major mode in fine size range (0.56–1.0 mm) while the Ca2+
obtained a major mode in coarse size (3.2–5.6 mm) at both sites.
r 2004 Elsevier Ltd. All rights reserved.

期刊名稱Atmospheric Environment
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