Profiles and Source Apportionment of Nonmethane Volatile Organic Compounds in Winter and Summer in Xi'an, China, based on the Hybrid Environmental Receptor Model | |
Sun, Jian1; Shen, Zhenxing1; Zhang, Yue1; Dai, Wenting2; He, Kun1; Xu, Hongmei1; Zhang, Zhou3; Cui, Long2; Li, Xuxiang4; Huang, Yu2; Cao, Junji2 | |
通讯作者 | Shen, Zhenxing(zxshen@mail.xjtu.edu.cn) |
2021 | |
发表期刊 | ADVANCES IN ATMOSPHERIC SCIENCES |
ISSN | 0256-1530 |
卷号 | 38期号:1页码:116-131 |
摘要 | Summer and winter campaigns for the chemical compositions and sources of nonmethane hydrocarbons (NMHCs) and oxygenated volatile organic compounds (OVOCs) were conducted in Xi'an. Data from 57 photochemical assessment monitoring stations for NMHCs and 20 OVOC species were analyzed. Significant seasonal differences were noted for total VOC (TVOC, NMHCs and OVOCs) concentrations and compositions. The campaign-average TVOC concentrations in winter (85.3 +/- 60.6 ppbv) were almost twice those in summer (47.2 +/- 31.6 ppbv). Alkanes and OVOCs were the most abundant category in winter and summer, respectively. NMHCs, but not OVOCs, had significantly higher levels on weekends than on weekdays. Total ozone formation potential was higher in summer than in winter (by 50%) because of the high concentrations of alkenes (particularly isoprene), high temperature, and high solar radiation levels in summer. The Hybrid Environmental Receptor Model (HERM) was used to conduct source apportionment for atmospheric TVOCs in winter and summer, with excellent accuracy. HERM demonstrated its suitability in a situation where only partial source profile data were available. The HERM results indicated significantly different seasonal source contributions to TVOCs in Xi'an. In particular, coal and biomass burning had contributions greater than half in winter (53.4%), whereas traffic sources were prevalent in summer (53.1%). This study's results highlight the need for targeted and adjustable VOC control measures that account for seasonal differences in Xi'an; such measures should target not only the severe problem with VOC pollution but also the problem of consequent secondary pollution (e.g., from ozone and secondary organic aerosols). |
关键词 | NMHCs OVOCs source apportionment Hybrid Environmental Receptor Model |
DOI | 10.1007/s00376-020-0153-0 |
关键词[WOS] | YANGTZE-RIVER DELTA ; COMPOUNDS VOCS ; OZONE POLLUTION ; SEASONAL-VARIATIONS ; INDUSTRIAL-AREA ; SEMIURBAN AREA ; AMBIENT VOCS ; EMISSIONS ; AEROSOL ; SITE |
收录类别 | SCI ; SCI |
语种 | 英语 |
资助项目 | Natural Science Foundation of China[41907188] ; Natural Science Foundation of Shaanxi Province, China[2019JQ-386] ; China Postdoctoral Science Foundation[2019M653658] |
WOS研究方向 | Meteorology & Atmospheric Sciences |
项目资助者 | Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province, China ; China Postdoctoral Science Foundation |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS记录号 | WOS:000601552100009 |
出版者 | SCIENCE PRESS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/15812 |
专题 | 粉尘与环境研究室 |
通讯作者 | Shen, Zhenxing |
作者单位 | 1.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710049, Peoples R China 3.Chinese Acad Sci, Changsha Ctr Mineral Resources Explorat, Guangzhou Inst Geochem, Changsha 410645, Peoples R China 4.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Peoples R China |
推荐引用方式 GB/T 7714 | Sun, Jian,Shen, Zhenxing,Zhang, Yue,et al. Profiles and Source Apportionment of Nonmethane Volatile Organic Compounds in Winter and Summer in Xi'an, China, based on the Hybrid Environmental Receptor Model[J]. ADVANCES IN ATMOSPHERIC SCIENCES,2021,38(1):116-131. |
APA | Sun, Jian.,Shen, Zhenxing.,Zhang, Yue.,Dai, Wenting.,He, Kun.,...&Cao, Junji.(2021).Profiles and Source Apportionment of Nonmethane Volatile Organic Compounds in Winter and Summer in Xi'an, China, based on the Hybrid Environmental Receptor Model.ADVANCES IN ATMOSPHERIC SCIENCES,38(1),116-131. |
MLA | Sun, Jian,et al."Profiles and Source Apportionment of Nonmethane Volatile Organic Compounds in Winter and Summer in Xi'an, China, based on the Hybrid Environmental Receptor Model".ADVANCES IN ATMOSPHERIC SCIENCES 38.1(2021):116-131. |
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