UMR CNRS 6249 Chrono-Environment, University of Franche-Comté, 16 route de Gray, 25030 Besançon Cedex, France.
TESORA, Le Visium, 22 Avenue Aristide Briand, 94110 Arcueil, France.
J Hazard Mater. 2021 May 5;409:124182. doi: 10.1016/j.jhazmat.2020.124182. Epub 2020 Oct 6.
With the new soil uses such as land restoration and to protect wilderness, the human health risk assessment (HHRA) and environmental risk assessment (ERA) should be combined. Based on the relationships demonstrated between an indicator of soil quality, the land snail, and human exposure, the aim of this study is to examine the snail and human risk indicators for twenty-nine soils contaminated by metal(loid)s. HHRA was evaluated by both hazard quotient and carcinogenic risk. When the human health indicators were ranked as uncertain, they were weighted by bioaccessibility to refine the risk assessment. The ERA was performed with risk coefficient after ex situ snail exposure. The results showed strong and novel relationships between human health and environmental risk indicators that had never been found before. For 62% of the soils, both indicators revealed either a confirmed risk or an uncertain level of risk. Overall pollutants present greater risk for human than for environment, with 55 vs 28% of the studied soils classified in the proven risk, respectively. An original integrative risk assessment of polluted soils has been proposed, that shall help setting up relevant strategies to manage contaminated soils considering not only human but also environmental indicators of risk.
随着新的土壤用途，如土地恢复和保护荒野，人类健康风险评估（HHRA）和环境风险评估（ERA）应该结合起来。基于土壤质量指标——陆地蜗牛与人类暴露之间的关系，本研究旨在检验受金属（类）污染的 29 种土壤的蜗牛和人类风险指标。HHRA 通过危害商数和致癌风险进行评估。当人类健康指标被归类为不确定时，通过生物可利用性对其进行加权，以完善风险评估。通过蜗牛体外暴露的风险系数进行 ERA。结果表明，人类健康和环境风险指标之间存在着以前从未发现过的强烈而新颖的关系。对于 62%的土壤，两种指标都显示出明确的风险或不确定的风险水平。总体而言，污染物对人类的风险大于对环境的风险，其中 55%和 28%的研究土壤分别被归类为已知风险。本文提出了一种受污染土壤的综合风险评估方法，有助于制定相关策略来管理污染土壤，不仅要考虑人类风险指标，还要考虑环境风险指标。
