COMPARATIVE STUDY OF DIFFERENT TOXICITY EVALUATION MODELS ON HEALTH RISK ASSESSMENT OF PAHS IN SOIL OF TYPICAL SUBSTATION SITES

CHE Kai; YU Jinxing; LIU Kecheng; YANG Peng; FAN Hui; WEI Minglei; NIU Xiangnan; HOU Haiping

doi:10.13205/j.hjgc.202201019

Volume 40 Issue 1

Mar. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(1): 128-134

CHE Kai, YU Jinxing, LIU Kecheng, YANG Peng, FAN Hui, WEI Minglei, NIU Xiangnan, HOU Haiping. COMPARATIVE STUDY OF DIFFERENT TOXICITY EVALUATION MODELS ON HEALTH RISK ASSESSMENT OF PAHS IN SOIL OF TYPICAL SUBSTATION SITES[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(1): 128-134. doi: 10.13205/j.hjgc.202201019

Citation:

CHE Kai, YU Jinxing, LIU Kecheng, YANG Peng, FAN Hui, WEI Minglei, NIU Xiangnan, HOU Haiping. COMPARATIVE STUDY OF DIFFERENT TOXICITY EVALUATION MODELS ON HEALTH RISK ASSESSMENT OF PAHS IN SOIL OF TYPICAL SUBSTATION SITES[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(1): 128-134. doi: 10.13205/j.hjgc.202201019

Citation:

CHE Kai, YU Jinxing, LIU Kecheng, YANG Peng, FAN Hui, WEI Minglei, NIU Xiangnan, HOU Haiping. COMPARATIVE STUDY OF DIFFERENT TOXICITY EVALUATION MODELS ON HEALTH RISK ASSESSMENT OF PAHS IN SOIL OF TYPICAL SUBSTATION SITES[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(1): 128-134. doi: 10.13205/j.hjgc.202201019

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COMPARATIVE STUDY OF DIFFERENT TOXICITY EVALUATION MODELS ON HEALTH RISK ASSESSMENT OF PAHS IN SOIL OF TYPICAL SUBSTATION SITES

doi: 10.13205/j.hjgc.202201019

1. State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China;
2. State Grid Hebei Electric Power Company, Shijiazhuang 050021, China

Received Date: 2021-03-17
Available Online: 2022-03-30
Publish Date: 2022-03-30

Abstract

Abstract

The concentrations of 16 priority PAHs in soil of 9 substations in Hengshui, Heibei province were detected and analyzed. Health risk assessment method for contaminated site was used to compare the health risk based on BaP carcinogenic slope factor and carcinogenic slope factor(non-carcinogenic reference dose). The results showed that the total amount of PAHs in the soil of the substation site ranged from 126.89 μg/kg to 1181.94 μg/kg, and the contents of seven carcinogenic PAHs ranged from 60.07 μg/kg to 698.5 μg/kg. The pollution level showed that the substation with mild or no pollution accounted for 66.7%, and the substation with moderate pollution level or above accounted for 33.3%. Both models showed that some of the substations had carcinogenic risk, and oral ingestion and skin contact exposure were the main ways of exposure to carcinogenic risk, with cumulative contribution rate of 91% above. The results of the two models showed that the total non-carcinogenic risk quotient of soil was smaller than the acceptable non-carcinogenic risk quotient, and the BAP toxicity assessment model would lead to a small risk quotient, which was not suitable for the risk assessment of non-carcinogenic substances. From the perspective of environmental risk control, it was considered that the health risk assessment model based on carcinogenic slope factor(non-carcinogenic reference dose) was more suitable for the health risk assessment of the contaminated soil.
- substation,
- soil,
- PAHs,
- toxicity evaluation models,
- risk assessment

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References(27)

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