城市地质2026，Vol.21Issue(3)：317-329,13.DOI:10.3969/j.issn.2097-3764.2026.03.005
北京市某砷污染场地土壤修复效果评估及污染程度评价
Soil remediation effect and pollution degree assessment of an arsenic contaminated site in Beijing
胡昱欣 1宋炜 1周瑞静 1杨全合 1王鹏 1缪泽1
作者信息
- 1. 北京市工程地质研究所,北京 100048
- 折叠
摘要
Abstract
The remediation effect and pollution accumulation degree of arsenic-contaminated soil within 0~5 m range of a certain contaminated site in Beijing were evaluated by using the one-by-one comparison method,single-factor pollution index method and geo-accumulation index method.The results are as follows:1)The arsenic content in 458 soil samples collected after remediation was all lower than 20 mg·kg-1,which satisfies the requirement of repair;2)The mean value of arsenic content in various soil samples,from lowest to highest,was as follows:the arsenic content in pollution soil after remediation(6.97 mg·kg-1)was lower than that at the bottom of the foundation pit(7.46 mg·kg-1),the side walls of the foundation pit(8.47 mg·kg-1),the surface non-polluted soil mound(8.83 mg·kg-1),and the potential pollution area(10.1 mg·kg-1),while the mean value of arsenic content in soil samples at 2 and 3 m depth of foundation pit side wall was significantly higher than that at 5 m depth.3)The results of single-factor pollution index method showed that the main pollution level was mild pollution(53.27%),and the highest level was mild pollution(8.30%),which were mainly distributed in the bottom of No.2 and No.10 foundation pits and the depth of 2 and 3 m of the side wall of the foundation pit.According to the evaluation results of geo-accumulation index method,there were mainly no pollution(70.52%),with the highest level being mild-to-medium pollution(29.48%).The main distribution areas are at the bottom and side walls of foundation pits 1,2,and 10,at a depth of 2-3 meters beneath the surface,the non-polluted soil piles on the surface and the potential pollution areas.While other basins only have scattered distribution.The arsenic pollution and cumulative degree in the soil on the side walls of each basin decrease with the increase of depth.关键词
污染程度/土壤修复/效果评估/污染累积/北京市Key words
contaminated degree/soil remediation/effect evaluation/pollution accumulation/Beijing引用本文复制引用
胡昱欣,宋炜,周瑞静,杨全合,王鹏,缪泽..北京市某砷污染场地土壤修复效果评估及污染程度评价[J].城市地质,2026,21(3):317-329,13.
