Novel insight into deriving remediation goals of arsenic contaminated sites with multi-media-equivalent dose and local exposure parameters
文献类型： 外文期刊
作者： Yang, Danhua 1 ; Jia, Xiaoyang 1 ; Xia, Tianxiang 1 ; Zhang, Nan 2 ; Su, Shiming 2 ; Tao, Zhenghua 1 ; Wu, Zhiyuan 1 ; Liang, Jing 1 ; Zhang, Lina 1 ;
作者机构： 1.Beijing Municipal Res Inst Ecoenvironm Protect, Lab Risk Modeling & Remediat Contaminated Sites, Beijing 100037, Peoples R China
2.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Agroenvironm, Minist Agr, Beijing 100081, Peoples R China
关键词： Multi-media-equivalent dose; Health risk; Glassworks site; Remediation goal; Local exposure parameters
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：11.3； 五年影响因子：12.4 ）
ISSN： 0304-3894
年卷期： 2025 年 482 卷
页码：
收录情况： SCI
摘要： The remediation goal (RG) for arsenic (As) calculated by the traditional method is approximately 0.45 mg center dot kg-1, significantly lower than the background values. This poses significant challenges for the management of Ascontaminated sites. The present study focused on a typical glassworks site with an As contamination level of up to 298 mg center dot kg-1, predominantly existing as As (III), with a carcinogenic risk level as high as 8.6 x 10-5. We developed a novel method known as multi-media-equivalent dose (MMED), incorporating local exposure parameters, and investigated the impacts of site-specific bioaccessibility (from 6.9% to 51.5%) on the results. The RG of arsenic calculated via MMED was 34.4 mg center dot kg-1 and 54 mg center dot kg-1 when bioaccessibility was considered. Integrating with five exposure parameters across 31 provinces, the provincial remediation goals (PRGs) ranged from 15.1 to 31.7 mg center dot kg-1. The RG calculated using the new method were more aligned with the practical conditions of managing As-contaminated sites, with potential for broader implementation across various provinces.
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