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Exposure characteristics of antimony and coexisting arsenic from multi-path exposure in typical antimony mine area
Journal of Environmental Management ( IF 8.7 ) Pub Date : 2021-04-03 , DOI: 10.1016/j.jenvman.2021.112493
Wenjing Guo , Zhiyong Zhang , Hao Wang , Hongjie Qin , Zhiyou Fu

In this study, samples of daily foods, drinking waters, surface waters, and soils were collected and screened to investigate the external exposure of Sb and As from various intake pathways in typical Sb mining area. Biomarker samples of residents were analyzed to monitor internal exposure characteristic of Sb and As in human body. Exposure dosages of As and Sb and transfer of Sb and As from environment to human body were estimated based on the external and internal exposure. The following results were obtained: daily intakes of food accounted for major intakes of both Sb and As, and highlighted the significance of foods intakes from rice and vegetable. The results of Monte Carlo simulations showed that total daily intake of Sb(n = 1444)and As(n = 1131) approximately reached 1.08 × 10−2 mg/kg/d and 1.19 × 10−3 mg/kg/d, in which 98.82% and 63.07% of residents have exceeded the threshold dosages of Sb and As. The contaminants contents in biomarkers indicated that Sb exhibited the similar internal exposure as As, while the total transfer rate of Sb from environment to human were estimated as approximately 2.04–2.40 times lower than As. This study also suggested that drinking water is another important pathway with high bioavailability and male resident may present higher priority than female in uptake of Sb and As. The paper suggested the similarity and difference on bioavailability existed in Sb and its group V elements, As, that would provide the essential information on exposure of Sb and As in the typical Sb mine area.



中文翻译:

典型锑矿区多径路接触锑和共存砷的接触特征

在这项研究中,收集并筛选了日常食物,饮用水,地表水和土壤的样品,以调查典型Sb矿区从各种摄入途径获得的Sb和As的外部暴露。分析居民的生物标志物样本以监测人体中Sb和As的内部暴露特征。基于外部和内部暴露,估算了砷和锑的暴露剂量以及锑和砷从环境到人体的转移。获得了以下结果:食物的每日摄入量占Sb和As的主要摄入量,并突显了从大米和蔬菜中摄入食物的重要性。蒙特卡洛模拟的结果表明,Sb(n  = 1444)和As(n  = 1131)的日总摄入量约为1.08×10-2  mg / kg / d和1.19×10 -3  mg / kg / d,其中98.82%和63.07%的居民已经超过Sb和As的阈值剂量。生物标志物中的污染物含量表明,Sb的内部暴露与As相似,而Sb从环境向人类的总转移率估计比As低约2.04至2.40倍。这项研究还表明,饮用水是另一个具有高生物利用度的重要途径,男性居民在摄取Sb和As方面可能比女性优先考虑。文章提出了锑及其第V族元素As中生物利用度的异同,这将为典型的Sb矿区中Sb和As的暴露提供必要的信息。

更新日期:2021-04-04
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