TY - JOUR
T1 - The source apportionment of urban aerosols from chemical properties of aerosol spectra near atmospheric sources
AU - Lee, Chung Te
AU - Hsu, Wen Chuang
N1 - Funding Information:
The authors acknowledge financial support from the National Science Council in Taiwan under Grant NSC 81-0421-E-008-10Z.
PY - 1996
Y1 - 1996
N2 - The data used in this work are size-segregated aerosols collected from three ambient-source sites with few interferences from nearby activities from fall into winter time in 1992. The analysis of the aerosol species is used to apportion source contributions to the aerosols sampled at Yen-Ping elementary school situated in the Taipei metropolitan area. Concentration ratios of characteristic species to mass of near-source aerosols are selected to represent source features. Source apportionment of water-soluble ions with sea-origin at Yen-Ping site is calculated from the “chlorine loss” process. The inference on the compound forms of sulfates shows that (NH4)2SO4 prevailing in the sub-micron mode, whereas the sulfates from sea-origin are undoubtedly dominant in the coarse mode. Estimate on source contributions for PM10 aerosols at Yen-Ping site shows that around 51% came from transportation activities, 23% from sea-spray process, 17 to 19% from construction work, and 15% from the secondary chemical reaction. The procedure of this work overestimates source contributions by 6 to 8%.
AB - The data used in this work are size-segregated aerosols collected from three ambient-source sites with few interferences from nearby activities from fall into winter time in 1992. The analysis of the aerosol species is used to apportion source contributions to the aerosols sampled at Yen-Ping elementary school situated in the Taipei metropolitan area. Concentration ratios of characteristic species to mass of near-source aerosols are selected to represent source features. Source apportionment of water-soluble ions with sea-origin at Yen-Ping site is calculated from the “chlorine loss” process. The inference on the compound forms of sulfates shows that (NH4)2SO4 prevailing in the sub-micron mode, whereas the sulfates from sea-origin are undoubtedly dominant in the coarse mode. Estimate on source contributions for PM10 aerosols at Yen-Ping site shows that around 51% came from transportation activities, 23% from sea-spray process, 17 to 19% from construction work, and 15% from the secondary chemical reaction. The procedure of this work overestimates source contributions by 6 to 8%.
KW - Aerosol size distribution
KW - Source apportionment
KW - Urban aerosols
UR - http://www.scopus.com/inward/record.url?scp=0029724498&partnerID=8YFLogxK
U2 - 10.1080/02533839.1996.9677760
DO - 10.1080/02533839.1996.9677760
M3 - 期刊論文
AN - SCOPUS:0029724498
SN - 0253-3839
VL - 19
SP - 1
EP - 13
JO - Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an
JF - Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an
IS - 1
ER -
