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Distribution of the Soil PAHs and Health Risk Influenced by Coal Usage Processes in Taiyuan City, Northern China

Author

Listed:
  • Rongjie Li

    (School of Environment and Safety, Taiyuan University of Science and Technology, Taiyuan 030024, China)

  • Mingchao Cheng

    (School of Environment and Safety, Taiyuan University of Science and Technology, Taiyuan 030024, China)

  • Yang Cui

    (School of Environment and Safety, Taiyuan University of Science and Technology, Taiyuan 030024, China)

  • Qiusheng He

    (School of Environment and Safety, Taiyuan University of Science and Technology, Taiyuan 030024, China)

  • Xiaofang Guo

    (School of Environment and Safety, Taiyuan University of Science and Technology, Taiyuan 030024, China)

  • Laiguo Chen

    (Center of Urban Air Pollution, South China Institute of Environmental Science (SCIES), Ministry of Ecology and Environment of the People’s Republic of China, Guangzhou 510655, China)

  • Xinming Wang

    (State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China)

Abstract

The quality of urban soil is closely related to the safety of public places and the guarantee of food quality. This study investigated the level, distribution, source, and carcinogenic risk of 16 U.S. EPA (Environmental Protection Agency) priority polycyclic aromatic hydrocarbons (PAHs) in urban, agricultural, and montane soil in Taiyuan. The ∑16PAHs level varied from 104.78 to 6594.63 ng g −1 with a mean of 922.93 ng g −1 , and 47.73% of the soil samples were severely contaminated, with a concentration higher than 600 ng g −1 . PAHs with higher molecular weight (≥4 rings) were dominant in PAHs profiles accounting for 80.92%. In the spatial distribution of PAHs, hotspots of ∑16 PAHs were observed near the industries, indicating pollutants emitted by the industries directly affect the surrounding soil quality. The sources identified by positive matrix factorization (PMF) indicated: coal combustion (40.77%), vehicle exhausts (32.94%), biomass combustion (14.89%), and coking source (11.40%). Coal-related sources (coal and coking sources) were the major contributors (52.17%) to PAHs and carcinogenic risk (46.48%) assessed by BaP toxic equivalent concentration in total soils. Therefore, the extensive usage of coal was the leading factor for PAH pollution and health risk in Taiyuan soil.

Suggested Citation

  • Rongjie Li & Mingchao Cheng & Yang Cui & Qiusheng He & Xiaofang Guo & Laiguo Chen & Xinming Wang, 2020. "Distribution of the Soil PAHs and Health Risk Influenced by Coal Usage Processes in Taiyuan City, Northern China," IJERPH, MDPI, vol. 17(17), pages 1-18, August.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:17:p:6319-:d:406352
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    References listed on IDEAS

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    1. Yihua Xiao & Fuchun Tong & Yuanwen Kuang & Bufeng Chen, 2014. "Distribution and Source Apportionment of Polycyclic Aromatic Hydrocarbons (PAHs) in Forest Soils from Urban to Rural Areas in the Pearl River Delta of Southern China," IJERPH, MDPI, vol. 11(3), pages 1-15, March.
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    Cited by:

    1. Li Ji & Wenwen Li & Yuan Li & Qiusheng He & Yonghong Bi & Minghua Zhang & Guixiang Zhang & Xinming Wang, 2022. "Spatial Distribution, Potential Sources, and Health Risk of Polycyclic Aromatic Hydrocarbons (PAHs) in the Surface Soils under Different Land-Use Covers of Shanxi Province, North China," IJERPH, MDPI, vol. 19(19), pages 1-14, September.
    2. Ning Qin & Ayibota Tuerxunbieke & Qin Wang & Xing Chen & Rong Hou & Xiangyu Xu & Yunwei Liu & Dongqun Xu & Shu Tao & Xiaoli Duan, 2021. "Key Factors for Improving the Carcinogenic Risk Assessment of PAH Inhalation Exposure by Monte Carlo Simulation," IJERPH, MDPI, vol. 18(21), pages 1-14, October.

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