DOI: 10.1016/j.atmosenv.2014.01.036
Scopus记录号: 2-s2.0-84894192962
论文题名: Concentrations of NO2, SO2, and benzene across Hanoi measured by passive diffusion samplers
作者: Hien P ; D ; , Hangartner M ; , Fabian S ; , Tan P ; M
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 88 起始页码: 66
结束页码: 73
语种: 英语
英文关键词: City background
; Exhaust emission regulation
; Hot spot
; Motorbike
; Ordinary kriging
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The concentrations of NO2, SO2, and benzene were measured by passive diffusion samplers at 96 sites across Hanoi consisting of 80 sites in the inner city background, 6 traffic hot spots, 5 industry hot spots, and 5 rural sites. Two sampling campaigns were conducted in the winter and summer seasons of 2007, and the average concentration of the two campaigns was used as a proxy for the annual mean. The annual means of NO2, SO2, and benzene in the inner city background ranged from 17.9 to 65.9μgm-3, 11.7-47.4μgm-3, and 3.5 to 15.4μgm-3, respectively. The NO2/benzene and SO2 concentrations were higher at the traffic and industry hot spots, respectively. The background concentrations of NO2 and benzene tended to increase with the population density and were highest in crowded Hanoi downtown areas. These areas are facing high risks of violating the national legislation threshold for NO2 (40μg-3). The SO2 background concentrations were generally below the legislation threshold (50μg-3). Motorbikes, which dominate the Hanoi vehicle fleet, are the main polluters of NO2 and benzene, whereas SO2 comes mainly from diesel buses and trucks, except in some areas that are directly affected by industrial coal burning. Stringently regulating the exhaust emissions of vehicles, especially for motorbikes, and reducing the sulfur and benzene contents in fuels could be implemented to improve Hanoi's air quality. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80692
Appears in Collections: 气候变化事实与影响
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作者单位: Vietnam Atomic Energy Institute, 59 Ly Thuong Kiet, Hanoi, Viet Nam; Federal Institute of Technology, Zurich, Switzerland; Swisscontact, Zurich, Switzerland; Hanoi's Center for Environmental Monitoring and Analysis, 36A Pham Van Dong, Hanoi, Viet Nam
Recommended Citation:
Hien P,D,, Hangartner M,et al. Concentrations of NO2, SO2, and benzene across Hanoi measured by passive diffusion samplers[J]. Atmospheric Environment,2014-01-01,88