Journal of Atmospheric and Environmental Optics, Volume. 19, Issue 2, 185(2024)

Component characteristics and source analysis of VOCs in autumn in Hefei industrial park

SUN Zhe1, LIU Shutong1, ZHANG Hong1、*, WEI Youwen1, WANG Shuibing1, HONG Xingyuan1, WANG Xinqi1, QIAN Liming2, and ZHU Sen1
Author Affiliations
  • 1Anhui Provincial Academy of Eco-Environmental Science Research, Hefei 230071, China
  • 2Zhongke Xintiandi (Hefei) Environmental Protection Technology Co., Ltd, Hefei 230088, China
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    With the rapid development of Hefei's economy and the continuous growth of energy consumption brought about by urbanization and industrialization, the regional composite air pollution dominated by ozone (O3) and fine particulate matter (PM2.5) is becoming increasingly prominent. In order to understand the pollution characteristics and sources of volatile organic compounds (VOCs) in the atmosphere of typical industrial park in Hefei City, China, strengthened monitoring was conducted on the atmospheric quality of a certain industrial park in Hefei City from September to November 2021, and the component characteristics, concentration level, source analysis and reaction activity of VOCs were analyzed. The results show that during the monitoring period, the average value of total volume [φ(VOCs)] was (40.64 ± 8.83) × 10-9, with alkanes and oxygenated volatile organic compounds (OVOCs) accounting for a relatively high proportion of 34.2% and 26.3%, respectively. The total volatile organic compounds (TVOCs) concentration showed a typical dual-peak pattern over time throughout a day, reaching the peak value at 9:00 and 19:00, and the lowest value around 16:00-17:00. This study used PMF model to analyze the sources of VOCs, and the analysis results showed that vehicle emission (25.7%), industrial emission (24.9%), solvents volatilization (19.6%), fuel volatilization (18.6%) and biomass burning emission (11.3%) were the main sources of VOCs during the observation. Ozone generation potential (OFP) of VOCs was 233.05 μg/m3, among which OVOCs contributed the most, accounting for 36.33%.

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    Zhe SUN, Shutong LIU, Hong ZHANG, Youwen WEI, Shuibing WANG, Xingyuan HONG, Xinqi WANG, Liming QIAN, Sen ZHU. Component characteristics and source analysis of VOCs in autumn in Hefei industrial park[J]. Journal of Atmospheric and Environmental Optics, 2024, 19(2): 185

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    Paper Information

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    Received: Sep. 16, 2022

    Accepted: --

    Published Online: Jun. 24, 2024

    The Author Email: ZHANG Hong (602463559@qq.com)

    DOI:10.3969/j.issn.1673-6141.2024.02.005

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