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| Derivation of predicted no-effect concentration（PNEC）and ecological risk assessment for perfluorinated and polyfluorinated compounds in soil and water environments |
| Received:January 13, 2025 |
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| KeyWord:perfluorinated and polyfluorinated compounds;emerging contaminants;surface water;soil;ecological risk assessment |
| Author Name | Affiliation | E-mail | | WU Zihao | South China Environmental Forensic Center, South China Institute of Environmental Science, Ministry of Ecology and Environment, Guangzhou 510655, China | | | DING Zecong | South China Environmental Forensic Center, South China Institute of Environmental Science, Ministry of Ecology and Environment, Guangzhou 510655, China | | | WU Libin | South China Environmental Forensic Center, South China Institute of Environmental Science, Ministry of Ecology and Environment, Guangzhou 510655, China | | | YI Hao | South China Environmental Forensic Center, South China Institute of Environmental Science, Ministry of Ecology and Environment, Guangzhou 510655, China | | | WANG Li | South China Environmental Forensic Center, South China Institute of Environmental Science, Ministry of Ecology and Environment, Guangzhou 510655, China | | | HONG Wei | South China Environmental Forensic Center, South China Institute of Environmental Science, Ministry of Ecology and Environment, Guangzhou 510655, China | | | ZHANG Xiaoyuan | South China Environmental Forensic Center, South China Institute of Environmental Science, Ministry of Ecology and Environment, Guangzhou 510655, China | | | ZENG Zilong | South China Environmental Forensic Center, South China Institute of Environmental Science, Ministry of Ecology and Environment, Guangzhou 510655, China | | | CUI Kai | South China Environmental Forensic Center, South China Institute of Environmental Science, Ministry of Ecology and Environment, Guangzhou 510655, China
School of Environment and Energy, South China University of Technology, Guangzhou 510006, China | cuikai@scies.org |
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| Abstract: |
| Perfluorinated and polyfluorinated compounds（PFASs） have received widespread attention due to their environmental persistence and bioaccumulation. In this study, the species sensitivity distribution method（SSD）, assessment factor method, and phase equilibrium partitioning method were used to derive the predicted no-effect concentration（PNEC）of PFASs in water environment and soil. Through the collection and analysis of data, an ecotoxicological database of 13 PFASs was established, and hazard assessment was carried out for the water environment and soil environment. In addition, the ecological risk assessment of water quality and soil in some areas of China was conducted by the risk quotient method. The results showed that the concentration of PFASs in most areas is lower than the PNEC value, indicating no unreasonable ecological risk. However, 6：2 Cl-PFESA, as a substitute for PFASs, showed a high chronic ecological risk in some river basins, and PFHxA and PFOS also showed unreasonable ecological and environmental risks in the soil of some areas. Therefore, it was suggested that future research should strengthen environmental monitoring and risk management of such compounds, and at the same time explore more effective pollutant treatment technologies and safe substitutes to reduce environmental and health risks. |
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