DOI: 10.1016/j.atmosenv.2014.03.025
Scopus记录号: 2-s2.0-84896448930
论文题名: Estimating halocarbon emissions using measured ratio relative to tracers in China
作者: Wang C ; , Shao M ; , Huang D ; , Lu S ; , Zeng L ; , Hu M ; , Zhang Q
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 89 起始页码: 816
结束页码: 826
语种: 英语
英文关键词: Emissions
; Halocarbons
; Mixing ratios
; Tracer ratio
Scopus关键词: Benzene
; Chlorofluorocarbons
; Estimation
; Halogenation
; Ozone layer
; Particulate emissions
; Ambient measurement
; Chlorofluorocarbons (CFCs)
; Emission inventories
; Halogenated solvents
; Hydrochlorofluorocarbons (HCFCs)
; Mixing ratios
; National emissions inventories
; Tracer ratio
; Halocarbons
; 1,1 dichloro 2,2,2 trifluoroethane
; 1,1,1 trichloroethane
; 1,2 dichloroethane
; 1,2 dichloropropane
; benzene
; carbon monoxide
; carbon tetrachloride
; chlorofluorocarbon
; chlorofluorohydrocarbon
; chloroform
; dichlorodifluoromethane
; dichloromethane
; halocarbon
; methyl bromide
; methyl chloride
; polyhalo derivative
; tetrachloroethylene
; trichloroethylene
; unclassified drug
; carbon emission
; carbon monoxide
; chlorinated hydrocarbon
; correlation
; emission inventory
; estimation method
; halocarbon
; mixing ratio
; ozone depletion
; solvent
; air pollution
; aircraft
; article
; calculation
; China
; city
; comparative study
; controlled study
; halocarbon emission
; ozone depletion
; priority journal
; 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: China is one of the most important halocarbons emitters in the world. However, differences exist in the compiled national emissions inventories (bottom-up) with those derived from ambient measurements (top-down). In this study, CO and 15 halocarbon species including chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), CCl4, CH3CCl3 and other halogenated solvents were measured in 47 cities and using aircraft over Shandong Peninsula during 2010-2011 for China. Halocarbon species with concentrations 20% higher than that of global background levels were considered to have their local emissions; these species were chosen for developing emissions estimates using tracer ratios method. Three tracers namely CO, HCFC-22 and benzene were used to examine correlations with halocarbons in this work; HCFC-22 combined with benzene as multi-tracers showed better correlations than CO did. Halocarbon emissions were estimated using tracer emission multiplied by Halo/Tracer obtained from measured data. The calculated results revealed that HCFC-22 emission based on CO tracer was the largest ozone depletion substance (ODS) at 129.3Gg/year; Solvent halocarbon species such as CH3Cl, CHCl3, CH2Cl2, C2HCl3, C2Cl4, etc., mainly used as solvents but not under control accounted for 79% in total halocarbon emissions. Comparisons of the tracer ratio emission estimates have been made with other emissions inventories. Results from this study showed our emission estimates for CFC-11 and CFC-12 were 80%~85% and 120%~430% of emission inventories respectively. Also the recently phased-out species of CCl4 and CH3CCl3 were 586%-1173% and 330%-660% of the emission inventories respectively. The estimated emissions from the different studies for China during 2000-2010 were summarized. It was shown that HCFC-22 increased by 49.1% accompanied with CFC-12 decreasing by 48.9% during 2007-2010 and a significant decrease trend in CH3CCl3 emission which dropped from 6.5Gg/year in 2001 to 2.1Gg/year in 2010. © 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81047
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; Guizhou Institute of Environment Science and Designing, Guiyang, China; Ministry of Education Key Laboratory for Earth System Modeling, Center for Earth System Science, Tsinghua University, Beijing, China
Recommended Citation:
Wang C,, Shao M,, Huang D,et al. Estimating halocarbon emissions using measured ratio relative to tracers in China[J]. Atmospheric Environment,2014-01-01,89