Influence of an Asian dust storm and Southeast Asian biomass burning on the characteristics of seashore atmospheric aerosols in Southern Taiwan

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Title:	Influence of an Asian dust storm and Southeast Asian biomass burning on the characteristics of seashore atmospheric aerosols in Southern Taiwan
Authors:	林能暉;Tsai, Jen-Hsiung;Huang, Kuo-Lin;Lin, Neng-Huei;Chen, Shui-Jen;Lin, Ta-Chang;Chen, Shih-Chieh;Lin, Chih-Chung;Hsu, Shih-Chieh;Lin, Wen-Yinn
Contributors:	地球科學學院大氣科學學系
Date:	2012-12-01
Issue Date:	2026-04-21 13:37:40 (UTC+8)
Publisher:	AAGR Aerosol and Air Quality Research;Cham: Springer International Publishing
Abstract:	摘要： This study explores the effects of an Asian dust storm (ADS) and Southeast Asian biomass burning on the composition of atmospheric aerosols in the coastal area of southern Taiwan in spring 2010. Coarse and fine particles were collected using two manual dichotomous samplers (Dichots) that were equipped with Teflon and Quartz filters. The results reveal that the concentrations of PM 10 and PM 2.5 in the ADS period were about twice those before and after this. More than half of water-soluble ions in coarse particles (PM 2.5–10 ) were Cl − and Na + (sea salt), while 70% of water-soluble ions of fine particles were SO 4 2− and NH 4 + (secondary aerosols). The OC/EC ratios of PM 2.5 and PM 2.5–10 were all above 2.0. Over 98% of the metals in coarse and fine particles were crustal elements (98.1–99.1%), and over 60% of the metals in PM 10 were in coarse particles (PM 2.5–10 ). The water-soluble ion, EC, OC, and metal contents in PM 2.5 all exceeded those in PM 2.5–10 . The ADS was associated with higher concentrations of water-soluble ions in PM 2.5 and PM 2.5–10 than was the non-ADS period, except for K + in PM 2.5–10 . ADS most increased the Ca 2+ content and concentration, causing a rise in the average concentrations of Ca 2+ in coarse and fine particles by factors of 3.0 and 3.2, respectively. In the ADS period, although the OC and EC concentrations of coarse and fine particles increased, the OC and EC contents in these particles decreased. The ADS period was associated with higher metal contents in coarse and fine particles than the non-ADS period, and the increase in PM 2.5–10 (more than 2%) exceeded that in PM 2.5 . In PM 2.5–10 and PM 2.5 , the Ca and Ni contents increased the most, respectively. In addition, the concentrations of the water-soluble ions, EC, OC, and metals in PM 2.5–10 and PM 2.5 increased, but their contents decreased, while the contents of the other constituents (= total − (water-soluble ions + EC + OC + metals)) in PM 2.5–10 and PM 2.5 increased. It is also found that Southeast Asian biomass burning is related to the deterioration of the air quality of southern Taiwan. 其他題名： Aerosol Air Qual. Res 出版者： Cham: Springer International Publishing 出版日期： 2012 出處： Aerosol and air quality research, 2012, Vol.12 (6), p.1105-1115 版權： Taiwan Association for Aerosol Research 2012 識別號： ISSN: 1680-8584 識別號： ISSN: 2071-1409 識別號： EISSN: 2071-1409 識別號： DOI: 10.4209/aaqr.2012.07.0201
Appears in Collections:	[Department of Atmospheric Sciences] journal & Dissertation

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