DOI: 10.1016/j.atmosenv.2014.08.021
Scopus记录号: 2-s2.0-84906337141
论文题名: Characteristics and source apportionment of VOCs measured in an industrial area of Nanjing, Yangtze River Delta, China
作者: An J ; , Zhu B ; , Wang H ; , Li Y ; , Lin X ; , Yang H
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 97 起始页码: 206
结束页码: 214
语种: 英语
英文关键词: Ozone formation potential
; PCA/APCS
; Photochemical reactivity
; Source apportionment
; Volatile organic compounds
Scopus关键词: Aromatization
; Paraffins
; Principal component analysis
; Propylene
; Volatile organic compounds
; Automobile emission
; Industrial production
; Ozone formation potentials
; PCA/APCS
; Photochemical reactivity
; Principal Components
; Source apportionment
; Temporal variability
; Industrial area
; Nanjing
; Yangtze river delta
; Industrial emissions
; Volatile organic compounds
; alkane
; alkene
; alkyne
; aromatic hydrocarbon
; butane
; ethylbenzene
; propane
; propylene
; volatile organic compound
; aromatic compound
; atmospheric pollution
; concentration (composition)
; diurnal variation
; emission inventory
; hydrocarbon
; industrial emission
; industrial location
; ozone
; pollutant source
; seasonal variation
; volatile organic compound
; atmospheric chemistry
; biogenic emission
; photochemistry
; principal component analysis
; traffic emission
; volatilization
; absolute principal component score
; air pollution
; article
; autumn
; China
; circadian rhythm
; combustion
; controlled study
; exhaust gas
; industrial area
; industrial production
; meteorology
; named inventories, questionnaires and rating scales
; photochemistry
; principal component analysis
; priority journal
; river
; seasonal variation
; spring
; summer
; volatilization
; winter
; Article
; car
; industrial production
; seasonal variation
; China
; Yangtze River
; Jiangsu
; Nanjing [Jiangsu]
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: Based on the data of volatile organic compounds (VOCs) collected continuously in the Nanjing industrial area, the VOCs temporal variability, photochemical reactivity, differences in tracer ratios, and source apportionment by principal component analysis/absolute principal component scores (PCA/APCS) were analyzed. The results showed that the total VOC concentration was 43.5ppbv, which was 45.1% alkanes, 25.3% alkenes, 7.3% alkynes and 22.3% aromatics. There was an obvious seasonal variation in the of VOCs, with a maximum in summer and minimum in winter, as well as in the VOC components, with alkanes and alkynes highest in winter, alkenes highest in summer, and aromatics highest in spring. The VOCs exhibited significant diurnal variations, i.e. high at night and low during the day. The concentrations of nighttime VOCs were highest to lowest as follows: summer>autumn>spring>winter. By contrast, the concentrations of daytime VOCs were highest to lowest as follows: winter>summer>spring>autumn. The diurnal variation of the VOCs was the largest in autumn and the smallest in winter. The largest diurnal variation of alkanes and alkenes occurred in autumn, whereas the largest diurnal variation of aromatics and alkynes occurred in spring. Using the propylene-equivalent method, alkenes had the highest concentration, followed by aromatics and alkanes. The ratios of T/B, E/B and X/B were 1.2, 1.0 and 0.8, respectively, possibly due to the aging air mass. Based on the specific pollutant ratio method, the observation site was greatly affected by the surrounding industrial areas. The source analysis of the VOCs in the PCA/APCS mode showed that the sources consisted of industrial production sources, automobile emission sources, combustion sources, industrial production volatilization sources, solvent use sources and biogenic emission sources; in addition, there were seasonal variations. Overall, the sources related to industrial production activities accounted for 45-63% of the VOCs, followed by automobile emission sources, which accounted for 34-50%. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81064
Appears in Collections: 气候变化事实与影响
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作者单位: Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing 210044, China; School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing 210044, China
Recommended Citation:
An J,, Zhu B,, Wang H,et al. Characteristics and source apportionment of VOCs measured in an industrial area of Nanjing, Yangtze River Delta, China[J]. Atmospheric Environment,2014-01-01,97