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The levels, sources and reactivity of volatile organic compounds in a typical urban area of Northeast China
Alternative TitleThe levels, sources and reactivity of volatile organic compounds in a typical urban area of Northeast China
Ma Zhuobiao1; Liu Chengtang1; Zhang Chenglong1; Liu Pengfei1; Ye Can1; Xue Chaoyang1; Zhao Di4; Sun Jichen4; Du Yiming4; Chai Fahe5; Mu Yujing1
2019
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES
ISSN1001-0742
Volume79Pages:121-134
AbstractAir concentrations of volatile organic compounds (VOCs) were continually measured at a monitoring site in Shenyang from 20 August to 16 September 2017. The average concentrations of alkanes, alkenes, aromatics and carbonyls were 28.54, 6.30, 5.59 and 9.78 ppbv, respectively. Seven sources were identified by the Positive Matrix Factorization model based on the measurement data of VOCs and CO. Vehicle exhaust contributed the most (36.15%) to the total propene-equivalent concentration of the measured VOCs, followed by combustion emission (16.92%), vegetation emission and secondary formation (14.33%), solvent usage (10.59%), petrochemical industry emission (9.89%), petrol evaporation (6.28%), and liquefied petroleum gas (LPG) usage (5.84%). Vehicle exhaust, solvent usage and combustion emission were found to be the top three VOC sources for O-3 formation potential, accounting for 34.52%, 16.55% and 11.94%, respectively. The diurnal variation of the total VOCs from each source could be well explained by their emission characteristics, e.g., the two peaks of VOC concentrations from LPG usage were in line with the cooking times for breakfast and lunch. Wind rose plots of the VOCs from each source could reveal the possible distribution of the sources around the monitoring site. The O-3 pollution episodes during the measurement period were found to be coincident with the elevation of VOCs, which was mainly due to the air parcel from the southeast direction where petrochemical industry emission was found to be dominant, suggesting that the petrochemical industry emission from the southeast was probably a significant cause of O-3 pollution in Shenyang. (C) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
Other AbstractAir concentrations of volatile organic compounds (VOCs) were continually measured at a monitoring site in Shenyang from 20 August to 16 September 2017. The average concentrations of alkanes, alkenes, aromatics and carbonyls were 28.54, 6.30, 5.59 and 9.78 ppbv, respectively. Seven sources were identified by the Positive Matrix Factorization model based on the measurement data of VOCs and CO. Vehicle exhaust contributed the most (36.15%) to the total propene-equivalent concentration of the measured VOCs, followed by combustion emission (16.92%), vegetation emission and secondary formation (14.33%), solvent usage (10.59%), petrochemical industry emission (9.89%), petrol evaporation (6.28%), and liquefied petroleum gas (LPG) usage (5.84%). Vehicle exhaust, solvent usage and combustion emission were found to be the top three VOC sources for O_3 formation potential, accounting for 34.52%, 16.55% and 11.94%, respectively. The diurnal variation of the total VOCs from each source could be well explained by their emission characteristics, e.g., the two peaks of VOC concentrations from LPG usage were in line with the cooking times for breakfast and lunch. Wind rose plots of the VOCs from each source could reveal the possible distribution of the sources around the monitoring site. The O_3 pollution episodes during the measurement period were found to be coincident with the elevation of VOCs, which was mainly due to the air parcel from the southeast direction where petrochemical industry emission was found to be dominant, suggesting that the petrochemical industry emission from the southeast was probably a significant cause of O_3 pollution in Shenyang.
KeywordPEARL RIVER-DELTA PHOTOCHEMICAL OZONE FORMATION NONMETHANE HYDROCARBONS NMHCS SOURCE APPORTIONMENT RATE CONSTANTS COMPOUNDS VOCS AIR-QUALITY PRECURSORS POLLUTION EMISSION Volatile organic compounds Source apportionment Photochemical ozone formation Field measurement
Indexed ByCSCD
Language英语
Funding Project[National Key Research and Development Program of China] ; [National Natural Science Foundation of China] ; [National research program for Key issues in air pollution control]
CSCD IDCSCD:6442310
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/149840
Collection中国科学院金属研究所
Affiliation1.中国科学院生态环境研究中心
2.中国科学院大学
3.中国科学院
4.中国科学院金属研究所
5.Chinese Res Institute Environm Sci, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Ma Zhuobiao,Liu Chengtang,Zhang Chenglong,et al. The levels, sources and reactivity of volatile organic compounds in a typical urban area of Northeast China[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2019,79:121-134.
APA Ma Zhuobiao.,Liu Chengtang.,Zhang Chenglong.,Liu Pengfei.,Ye Can.,...&Mu Yujing.(2019).The levels, sources and reactivity of volatile organic compounds in a typical urban area of Northeast China.JOURNAL OF ENVIRONMENTAL SCIENCES,79,121-134.
MLA Ma Zhuobiao,et al."The levels, sources and reactivity of volatile organic compounds in a typical urban area of Northeast China".JOURNAL OF ENVIRONMENTAL SCIENCES 79(2019):121-134.
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