Soil Environmental Criteria of Polycyclic Aromatic Hydrocarbons for Ecological Security Based on Literature Data
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Institute of Organic Contaminant Control and Soil Remediation, Nanjing Agricultural University

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National Natural Science Foundation of China (No. 42207025), Jiangsu Provincial Key Research and Development Plan (No. BK20221025) , National Key R&D Program of China (2021YFC1809100)

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    Abstract:

    【Objective】 Polycyclic aromatic hydrocarbons (PAHs) have carcinogenic, teratogenic, and mutagenic effects, and soil PAH pollution has become a world-wide problem. However, ecological soil screening and controlling levels (Eco-SSCLs) for PAHs in China have not yet been established. Thus, soil ecological security risk assessment is still unsubstantiated. 【Method】 Here, we systematically investigated the research outcomes in related fields at home and aboard, and screened out 248 toxicity data (Effect concentration10, EC10 and No observed effect concentration, NOEC) of 16 pri-control PAHs listed in US EPA. The species sensitivity distributions were developed by a series of cumulative distribution functions, and were successfully used to derive soil environmental criteria of each PAH (PAH-SEC) for ecological security under different land use types. 【Result】 The PAH-SEC values under different land use types were 1.00~10.60 mg·kg-1 (natural reserve and agricultural land), 1.03~25.44 mg·kg-1 (parkland), 1.12~51.00 mg·kg-1 (residential land), 1.20~68.41 mg·kg-1 (commercial service and industrial land). 【Conclusion】 The results can provide data support for the formulation of soil environmental quality standards for ecological security, and offer bases for ecological risk assessment of PAHs polluted soil.

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DENG Jibao, XIANG Dazhou, LIN Bozheng, HU Xiaojie, WANG Hefei, GAO Yanzheng. Soil Environmental Criteria of Polycyclic Aromatic Hydrocarbons for Ecological Security Based on Literature Data[J]. Acta Pedologica Sinica,2024,61(3).

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History
  • Received:September 19,2022
  • Revised:March 12,2023
  • Adopted:March 25,2023
  • Online: April 06,2023
  • Published: