Real-time measurements of PM2.5, PM10–2.5, and BC in an urban streetcanyon

doi:10.1016/j.partic.2014.08.006

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Real-time measurements of PM2.5, PM10–2.5, and BC in an urban streetcanyon
	Cui,L(Cui,Long)[3]; Cheng,Y(Cheng,Yan)[1,2]; Lee,SC(Lee,Shuncheng)[3]; Gao,Y(Gao,Yuan)[3]; Deng,WJ(Deng,Wenjing)[4]; Cao,JJ(Cao,Junji)[2]; Shen,ZX(Shen,Zhenxing)[1]; Sun,J(Sun,Jian)[3]
刊名	Particuology
	2015-06
卷号	20 期号:2015 页码:134-140
关键词	PM2.5 PM10–2.5 BC Hong Kong Urban street canyon
DOI	10.1016/j.partic.2014.08.006
文献子类	期刊论文
英文摘要	A continuous dichotomous beta gauge monitor was used to characterize the hourly content of PM2.5, PM10–2.5, and Black Carbon (BC) over a 12-month period in an urban street canyon of Hong Kong. Hourly vehicle counts for nine vehicle classes and meteorological data were also recorded. The average weekly cycles of PM2.5, PM10–2.5, and BC suggested that all species are related to traffic, with high concentrations on workdays and low concentrations over the weekends. PM2.5 exhibited two comparable concentrations at 10:00–11:00 (63.4 μg/m3) and 17:00–18:00 (65.0 μg/m3) local time (LT) during workdays, corresponding to the hours when the numbers of diesel-fueled and gasoline-fueled vehicles were at their maximum levels: 3179 and 2907 h−1, respectively. BC is emitted mainly by diesel-fueled vehicles and this showed the highest concentration (31.2 μg/m3) during the midday period (10:00–11:00 LT) on workdays. A poor correlation was found between PM2.5 concentration and wind speed (R = 0.51, P-value > 0.001). In contrast, the concentration of PM10–2.5 was found to depend upon wind speed and it increased with obvious statistical significance as wind speed increased (R = 0.98, P-value < 0.0001).
语种	英语
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/9615]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
作者单位	1.Department of Science and Environmental Studies and Centre for Education for Environmental Sustainability, The Hong Kong Institute of Education, Hong Kong, China 2.SKLLQG, Institute of Earth and Environment, CAS, Xi’an 710075, China; 3.Department of Civil and Environmental Engineering, Research Center for Environmental Technology and Management, The Hong Kong Polytechnic University, Hong Kong, China; 4.Department of Environmental Science and Technology, School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China;
推荐引用方式 GB/T 7714	Cui,L,Cheng,Y,Lee,SC,et al. Real-time measurements of PM2.5, PM10–2.5, and BC in an urban streetcanyon[J]. Particuology,2015,20(2015):134-140.
APA	Cui,L.,Cheng,Y.,Lee,SC.,Gao,Y.,Deng,WJ.,...&Sun,J.(2015).Real-time measurements of PM2.5, PM10–2.5, and BC in an urban streetcanyon.Particuology,20(2015),134-140.
MLA	Cui,L,et al."Real-time measurements of PM2.5, PM10–2.5, and BC in an urban streetcanyon".Particuology 20.2015(2015):134-140.