Effect of traffic loading on particle-bound water-soluble ions and carbons collected near a busy road and at an urban site

in Sciences Citation Index(SCI), 科學引文索引資料庫(SCI)
標題Effect of traffic loading on particle-bound water-soluble ions and carbons collected near a busy road and at an urban site
出版類型SCI(Sciences Citation Index)
出版年度2010
AuthorsLin Chih-Chung, 林志忠, Kuo-Lin Huang 黃國林, Chiu 邱春惠, Juei-Yu Chiu 邱瑞宇, & Shui-Jen Chen 陳瑞仁
開始頁1839
頁數10
出版日期2010 / 1
其他編號0000
中文摘要

This study examines size-resolved particle-bound water-soluble ions and carbons (element carbon (EC) and organic carbon (OC))
collected near a busy road and at an urban site. The traf?c-related ?ne and coarse particles were collected using two manual
dichotomous samplers (Dichots) equipped with Quartz ?lters. The PM2.5
/PM2.5?10 value during rush hour (3.57) exceeded that
during slack time (2.72). During weekdays and weekends, although the roadside PM2.5 concentration correlated well with traf?c
?ow (R2
= 0.91 and 0.81, respectively), the roadside PM2.5?10 concentration did not. The lowest second aerosol concentrations were
observed from 19:00 to 21:00 during weekdays and weekends. The average content of total water-soluble ions in PM2.5
was 30.7% and
35.7% for weekday and weekend samples, respectively (a total average of 33.2%). In PM2.5, the content of NO?
3
(8.95-11.0%) exceeded
that of SO2?
4
(7.08–8.10%) at the roadside site. Conversely, the content of PM2.5-bound SO2?
4
was higher than that of PM2.5-bound
NO?
3
at the urban site. The mean content of PM2.5-bound TC was 35.8%, while that of PM2.5?10-bound TC was 15.9%. Moreover,
the R2
values of traf?c ?ow versus PM2.5-bound EC concentration on weekdays and weekends were 0.89 and 0.56, respectively, and
were 0.82 and 0.38, respectively, for those of traf?c ?ow versus PM2.5-bound OC concentration.

網址http://http://ir.ntut.edu.tw/retrieve/31205/11110-ch-pa-2010-10_2p.pdf
期刊名稱Journal of Environmental Science and Health, Part A site
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