关键词: HRWM Monte Carlo model groundwater health risk assessment visual MINTEQ

Mesh : China Groundwater / chemistry Risk Assessment Humans Water Pollutants, Chemical / analysis Monte Carlo Method Cities Environmental Monitoring Child Adult

来  源:   DOI:10.1002/wer.11063

Abstract:
The rapid development of the social economy and the influence of human activities can lead to aggravated groundwater pollution. Groundwater safety is the premise of residents\' health. Therefore, studying the sustainable utilization and health risks of groundwater quality is important. The groundwater quality and potential health risks were evaluated in the Shijiazhuang area, which is located in the North China Plain in this paper. Based on 159 groundwater samples collected in the study area, the potential health risks of As, Cr6+, Ni, Pb, F-, and NO3 - to humans were evaluated from oral and skin contact. Results of the human health risk assessment showed that the average carcinogenic risk and non-carcinogenic risk of children are higher than those of adults. According to the spatial distribution of the total risk value, adults and children in the southwest of the study area face higher risks. Because of the uncertainty of USEPA, Monte Carlo simulation was used to calculate the probability of health risk assessment and prioritization of contaminant treatment. The results of the Monte Carlo simulation showed that the acceptable range for children is 6.82%, and the acceptable range for adults is 18.07%. According to the HRWM model, carcinogenic pollutants mainly include As, Cr6+, and Ni. The most important chemical species of As is HAsO4 2-, followed by H2AsO4 -. Similarly, CrO4 2- and Ni2+ are the main forms of Cr6+ and Ni. The results of this study can provide data support for the protection and management of groundwater quality in the North China Plain. PRACTITIONER POINTS: Children are more susceptible to carcinogenic risk than adults. After calculation, the main influencing elements are Ni and Cr. Metal morphology analysis was carried out, and the results showed that HAsO4 2-, CrO4 2-, and Ni2+ were the main types.
摘要:
社会经济的快速发展和人类活动的影响会导致地下水污染加剧。地下水安全是居民健康的前提。因此,研究地下水水质的可持续利用和健康风险具有重要意义。对石家庄地区地下水水质和潜在健康风险进行了评价,本文位于华北平原。根据研究区收集的159个地下水样本,As的潜在健康风险,Cr6+,Ni,Pb,F-,和NO3-通过口腔和皮肤接触来评估对人类的影响。人体健康风险评估结果显示,儿童的平均致癌风险和非致癌风险均高于成人。根据总风险值的空间分布,研究区西南部的成人和儿童面临更高的风险.由于USEPA的不确定性,使用蒙特卡罗模拟计算了健康风险评估和污染物处理优先级的概率。蒙特卡罗模拟的结果表明,儿童的可接受范围为6.82%,成人的可接受范围为18.07%。根据HRWM模型,致癌污染物主要包括砷,Cr6+,和Ni。As最重要的化学物质是HAsO42-,其次是H2AsO4-。同样,CrO42-和Ni2+是Cr6+和Ni的主要形式。本研究结果可为华北平原地下水水质保护与管理提供数据支持。实践要点:儿童比成人更容易患致癌风险。经过计算,主要影响元素是Ni和Cr。进行了金属形貌分析,结果表明,HAsO42-,CrO42-,Ni2+是主要类型。
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