C-RAG模型在砷污染场地中的修正及应用研究

雷城英; 李玉进; 王梦珂; 沈锋; 张振师

doi:10.7524/AJE.1673-5897.20200824005

C-RAG模型在砷污染场地中的修正及应用研究

1. 西安锦华生态技术有限公司, 西咸新区 712000;
2. 中国电建集团西北勘测设计研究院有限公司, 西安 710065;
3. 西北农林科技大学资源环境学院, 杨凌 712100

作者简介: 雷城英(1995-),女,本科,研究方向为场地风险评估,E-mail:lcy08_12@@163.com

通讯作者: 沈锋, E-mail: sf142857@nwafu.edu.cn ;

基金项目:
陕西省重点研发计划项目（2018ZDCXL-N-19-5）
中图分类号: X171.5

Research on Modification and Application of C-RAG Model in Arsenic Contaminated Site

1. Xi'an Jinhua Ecological Technology Co. Ltd., Xixian New District, Shaanxi 712000, China;
2. Northwest Engineering Corporation Limited, Xi'an 710065, China;
3. College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China

Corresponding author: Shen Feng, sf142857@nwafu.edu.cn ;

Fund Project:

摘要: 为了解我国基于人体健康《建设用地土壤污染风险评估技术导则》（Chinese Risk Assessment Guide，C-RAG）在矿区场地中的分析模式及应用情景，以青海某废弃矿区场地为例，在结合矿场未来规划的基础上，通过对C-RAG模型参数的修正和改进，研究了该场地的风险状况及修复目标值，为污染地块适度修复提供了借鉴依据。结果表明，以砷污染为主的矿区场地，在修正暴露途径、土壤摄入量、暴露频率和PM₁₀后，致癌风险水平普遍降低为原来的1/4。综合考虑污染物的可给性、风险水平与修复投入之间的平衡关系以及工程可行性后，确定以引入生物可给性的致癌风险控制值21.1 mg·kg^-1为最终修复目标值。
- 重金属 /
- 矿区场地 /
- 健康风险 /
- 评估模型 /
- 修复目标
Abstract: In this study, an abandoned mining site in Qinghai Province was studied to explore the application of Chinese Risk Assessment Guide (C-RAG) in mining-contaminated soil and to provide a reference for moderately contaminated soil remediation. Based on the future planning of the mining area, the risk grade and remediation target value of the site was explored through the correction and improvement of the parameters of the C-RAG model. The results showed that the carcinogenic risk level was significantly reduced to 1/4 through the modification of exposure pathway, soil intake, exposure frequency and PM₁₀. After comprehensively evaluating the accessibility of contaminants, the balance between the risk level and the remediation investment, and the engineering feasibility, the final remediation target value is determined to be 21.1 mg·kg^-1 for the carcinogenic risk control value after the introduction of bioavailability.
- heavy metals /
- mining area /
- health risk /
- evaluation model /
- repair target

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C-RAG模型在砷污染场地中的修正及应用研究

作者简介: 雷城英(1995-),女,本科,研究方向为场地风险评估,E-mail:lcy08_12@@163.com

通讯作者: 沈锋, E-mail: sf142857@nwafu.edu.cn ;

Research on Modification and Application of C-RAG Model in Arsenic Contaminated Site

Corresponding author: Shen Feng, sf142857@nwafu.edu.cn ;

计量

C-RAG模型在砷污染场地中的修正及应用研究

通讯作者: 沈锋, E-mail: sf142857@nwafu.edu.cn ;

English Abstract

Research on Modification and Application of C-RAG Model in Arsenic Contaminated Site

Corresponding author: Shen Feng, sf142857@nwafu.edu.cn ;

全文HTML

目录

C-RAG模型在砷污染场地中的修正及应用研究

作者简介: 雷城英(1995-),女,本科,研究方向为场地风险评估,E-mail:lcy08_12@@163.com

通讯作者: 沈锋, E-mail: sf142857@nwafu.edu.cn ;

Research on Modification and Application of C-RAG Model in Arsenic Contaminated Site

Corresponding author: Shen Feng, sf142857@nwafu.edu.cn ;

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C-RAG模型在砷污染场地中的修正及应用研究

通讯作者: 沈锋, E-mail: sf142857@nwafu.edu.cn ;

English Abstract

Research on Modification and Application of C-RAG Model in Arsenic Contaminated Site

Corresponding author: Shen Feng, sf142857@nwafu.edu.cn ;

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