DOI: 10.1016/j.atmosenv.2015.02.056
Scopus记录号: 2-s2.0-84924401785
论文题名: Aldehydes in relation to air pollution sources: A case study around the Beijing Olympics
作者: Altemose B ; , Gong J ; , Zhu T ; , Hu M ; , Zhang L ; , Cheng H ; , Zhang L ; , Tong J ; , Kipen H ; M ; , Ohman-Strickland P ; , Meng Q ; , Robson M ; G ; , Zhang J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 109 起始页码: 61
结束页码: 69
语种: 英语
英文关键词: Acrolein
; Air pollution
; Aldehydes
; Olympics
; Pollutant sources
; Principal component analysis
Scopus关键词: Acetaldehyde
; Air pollution
; Aldehydes
; Formaldehyde
; Herbicides
; Pollution
; Pollution control
; Pollution induced corrosion
; Principal component analysis
; Acrolein
; Air pollution sources
; Average concentration
; Concentration ranges
; Mean concentrations
; Olympics
; Pollutant sources
; Vegetative burning
; Air pollution control
; acetaldehyde
; acrolein
; aldehyde derivative
; formaldehyde
; oil
; ozone
; air sampling
; aldehyde
; anthropogenic source
; atmospheric pollution
; Olympic Games
; pollution control
; principal component analysis
; smog
; air pollution
; air pollution control
; air quality
; ambient air
; Article
; burn
; combustion
; concentration process
; control strategy
; controlled study
; environmental factor
; exhaust gas
; human
; humidity
; meteorology
; outcome assessment
; particulate matter
; photochemistry
; principal component analysis
; priority journal
; seasonal variation
; smog
; summer
; temperature
; Beijing [China]
; China
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: This study was carried out to characterize three aldehydes of health concern (formaldehyde, acetaldehyde, and acrolein) at a central Beijing site in the summer and early fall of 2008 (from June to October). Aldehydes in polluted atmospheres come from both primary and secondary sources, which limits the control strategies for these reactive compounds. Measurements were made before, during, and after the Beijing Olympics to examine whether the dramatic air pollution control measures implemented during the Olympics had an impact on concentrations of the three aldehydes and their underlying primary and secondary sources. Average concentrations of formaldehyde, acetaldehyde and acrolein were 29.3±15.1μg/m3, 27.1±15.7μg/m3 and 2.3±1.0μg/m3, respectively, for the entire period of measurements, all being at the high end of concentration ranges measured in cities around the world in photochemical smog seasons. Formaldehyde and acrolein increased during the pollution control period compared to the pre-Olympic Games, followed the changing pattern of temperature, and were significantly correlated with ozone and with a secondary formation factor identified by principal component analysis (PCA). In contrast, acetaldehyde had a reduction in mean concentration during the Olympic air pollution control period compared to the pre-Olympic period and was significantly correlated with several pollutants emitted from local emission sources (e.g., NO2, CO, and PM2.5). Acetaldehyde was also more strongly associated with primary emission sources including vegetative burning and oil combustion factors identified through the PCA. All three aldehydes were lower during the post-Olympic sampling period compared to the before and during Olympic periods, likely due to seasonal and regional effects. Our findings point to the complexity of source control strategies for secondary pollutants. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81816
Appears in Collections: 气候变化事实与影响
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作者单位: School of Public Health, Rutgers University, Piscataway, NJ, United States; Nicholas School of the Environment and Duke Global Health Institute, Duke University, Durham, NC, United States; State Key Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China; Environmental and Occupational Sciences Institute (EOHSI), Rutgers University, Piscataway, NJ, United States; School of Environmental and Biological Sciences, Rutgers University, New Brunswick, NJ, United States
Recommended Citation:
Altemose B,, Gong J,, Zhu T,et al. Aldehydes in relation to air pollution sources: A case study around the Beijing Olympics[J]. Atmospheric Environment,2015-01-01,109