SPATIAL DISTRIBUTION AND CAUSES OF CHLORINATED HYDROCARBONS POLLUTION IN SOIL IN A TYPICAL CONTAMINATED SITE

NIU Zhenru; LI Feifei; ZHANG Youjun; QU Weigui; CONG Hui; LIU Shigang; ZHANG Jia

doi:10.13205/j.hjgc.202203015

Volume 40 Issue 3

Mar. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(3): 94-101,228

NIU Zhenru, LI Feifei, ZHANG Youjun, QU Weigui, CONG Hui, LIU Shigang, ZHANG Jia. SPATIAL DISTRIBUTION AND CAUSES OF CHLORINATED HYDROCARBONS POLLUTION IN SOIL IN A TYPICAL CONTAMINATED SITE[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(3): 94-101,228. doi: 10.13205/j.hjgc.202203015

Citation:

NIU Zhenru, LI Feifei, ZHANG Youjun, QU Weigui, CONG Hui, LIU Shigang, ZHANG Jia. SPATIAL DISTRIBUTION AND CAUSES OF CHLORINATED HYDROCARBONS POLLUTION IN SOIL IN A TYPICAL CONTAMINATED SITE[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(3): 94-101,228. doi: 10.13205/j.hjgc.202203015

Citation:

NIU Zhenru, LI Feifei, ZHANG Youjun, QU Weigui, CONG Hui, LIU Shigang, ZHANG Jia. SPATIAL DISTRIBUTION AND CAUSES OF CHLORINATED HYDROCARBONS POLLUTION IN SOIL IN A TYPICAL CONTAMINATED SITE[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(3): 94-101,228. doi: 10.13205/j.hjgc.202203015

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SPATIAL DISTRIBUTION AND CAUSES OF CHLORINATED HYDROCARBONS POLLUTION IN SOIL IN A TYPICAL CONTAMINATED SITE

doi: 10.13205/j.hjgc.202203015

1. Tianjin North China Geological Exploration General Institute, Tianjin 300170, China;
2. Beijing Urban Construction Exploration&Surveying Design Research Institute Co., Ltd, Beijing 100089, China;
3. China University of Geosciences(Beijing), Beijing 100089, China

Received Date: 2021-03-09
Available Online: 2022-07-07

Abstract

Abstract

Based on the study of the spatial distribution and genetic research of chlorinated hydrocarbon pollutants in the quaternary of marine and continental interdeposition in Tianjin, this paper selected a pollution site, a pesticide raw material purification workshop with a production history of 19 years, and investigated the spatial distribution of chlorinated hydrocarbon pollution and the cause of pollution in site soil through geological survey, monitoring sampling, and test analysis. Results showed that:the over-standard chlorinated hydrocarbons in the site include chloroform, 1,1-dichloroethane, 1,2-dichloroethane, carbon tetrachloride and vinyl chloride; the pollution spread around the core area consisted of the workshop in the west and middle of the site, the chemical warehouse in the north, the office in the east, and the area between the workshop in the middle and the warehouse in the east; the pollutant content first increased to the peak with the increase of depth on the whole, and then decreased significantly with the increase of depth. The peak content mainly accumulated in the middle and bottom of silty clay ④₂ layer of continental layer and the upper part of silty clay ⑥₁ layer or silty soil ⑥₃ layer of marine layer. It showed that silty clay layer ④₂ and silty clay layer ⑥₁ effectively blocked the pollution migration to a certain extent, which was related to the characteristics of high clay and silt content, low sand content and poor permeability.
- contaminated site,
- soil,
- chlorinated hydrocarbons,
- space distribution,
- pollution causes

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References(7)

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