Ultrafine particles and pm 2.5 at three urban air monitoring stations in northern taiwan from 2011 to 2013

Guan Yu Lin, Guo Rui Lee, Sih Fan Lin, Yi Hung Hung, Shih Wei Li, Guo Jei Wu, Huajun Ye, Wei Huang, Chuen-Tinn Tsai*

*此作品的通信作者

研究成果: Article同行評審

19 引文 斯高帕斯(Scopus)

摘要

In this study, long term measurements of PM2.5 and ultrafine particles (UFPs) for daily average mass concentration at Zhongshan (ZS), Sinjhuang (SJ), and Jhudong (JD) urban air monitoring stations were conducted from 2011 spring to 2013 autumn. The results showed that daily average UFPs mass concentrations in spring (average at 3 stations: 1.58 ± 0.74 μg m–3) and summer (average at 3 stations: 1.59 ± 0.53 μg m–3) were higher than those in autumn (average at 3 stations: 1.02 ± 0.28 μg m–3) and winter (average at 3 stations: 1.04 ± 0.48 μg m–3) due to the impacts by heavy traffic emission and new particle formation event. The effective density (ρeff) and dynamic shape factor (χ) for ultrafine particles (UFPs) were found to be 0.68 ± 0.16 g cm–3 and 2.06 ± 0.19, respectively, suggesting that the particle morphology was irregular shape. Based on the calculated ρeff and χ, the average number and surface area concentration ratio of UFPs to those of PM2.5 at these monitoring stations was determined to be 89.0 ± 5.5% and 42.1 ± 12.8%, respectively, suggesting that UFPs contribute significantly to the health-relevant PM2.5 aerosol fraction in these stations.

原文English
頁(從 - 到)2305-2319
頁數15
期刊Aerosol and Air Quality Research
15
發行號6
DOIs
出版狀態Published - 23 10月 2015

指紋

深入研究「Ultrafine particles and pm 2.5 at three urban air monitoring stations in northern taiwan from 2011 to 2013」主題。共同形成了獨特的指紋。

引用此