IEECAS OpenIR  > 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
Cheng,Y(Cheng,Yan)[1,2]; Lee,SC(Lee,Shuncheng)[3]; Gao,Y(Gao,Yuan)[3]; Cui,L(Cui,Long)[3]; Deng,WJ(Deng,Wenjing)[4]; Cao,JJ(Cao,Junji)[2]; Shen,ZX(Shen,Zhenxing)[1]; Sun,J(Sun,Jian)[3]
2015-06
Source PublicationParticuology
Volume20Issue:2015Pages:134-140
Subtype期刊论文
AbstractA 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).
KeywordPM2.5 PM10–2.5 BC Hong Kong Urban street canyon
DOI10.1016/j.partic.2014.08.006
Indexed BySCI
Language英语
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9615
Collection黄土与第四纪地质国家重点实验室(2010~)
Affiliation1.Department of Environmental Science and Technology, School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, 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 Science and Environmental Studies and Centre for Education for Environmental Sustainability, The Hong Kong Institute of Education, Hong Kong, China
Recommended Citation
GB/T 7714
Cheng,Y(Cheng,Yan)[1,2],Lee,SC(Lee,Shuncheng)[3],Gao,Y(Gao,Yuan)[3],等. Real-time measurements of PM2.5, PM10–2.5, and BC in an urban streetcanyon[J]. Particuology,2015,20(2015):134-140.
APA Cheng,Y.,Lee,SC.,Gao,Y.,Cui,L.,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 Cheng,Y,et al."Real-time measurements of PM2.5, PM10–2.5, and BC in an urban streetcanyon".Particuology 20.2015(2015):134-140.
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