当前位置: X-MOL 学术Toxicol. Environ. Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Temporal dynamics of arsenic uptake and distribution: Food and water risks in the Bengal basin
Toxicological & Environmental Chemistry ( IF 1.8 ) Pub Date : 2020-04-20 , DOI: 10.1080/02772248.2020.1767781
Sarath Pullyottum Kavil 1 , Devanita Ghosh 1 , Indira Pašić 2 , Joyanto Routh 2
Affiliation  

Abstract Contaminated food chain is a serious contender for arsenic (As) uptake around the globe. In Nadia, West Bengal, we trace possible means of transfer of As from multiple sources reaching different trophic levels, and associated seasonal variability leading to chronic As uptake. This work considers possible sources-pathways of As transfer through food chain in rural community. Arsenic concentration in groundwater, soil, rice, and vegetable-samples collected detected in different harvest seasons of 2014 and 2016. Arsenic level in shallow groundwater samples ranged from 0.1 to 354 µg/L, with 75% of the sites above the prescribed limit by WHO (10 µg/L) during the boro harvest season. High soil As content (∼20.6 mg/kg), resulted in accumulation of As in food crops. A positive correlation in As conc. with increase over period in all sites indicating gradual As accumulation in topsoil. Unpolished rice samples showed high As content (∼1.75 mg/kg), polishing reduced 80% of As. Among vegetables, the plant family Poaceae with high irrigation requirements and Solanaceae retaining high moisture, have the highest levels of As. Contaminated animal fodder (Poaceae) and turf water for cattle are shown to contaminate milk (0.06 to 0.24 µg/L) and behoves strategies, practices to minimize As exposure.

中文翻译:

砷吸收和分布的时间动态:孟加拉盆地的食物和水风险

摘要 受污染的食物链是全球砷 (As) 摄取的重要竞争者。在西孟加拉邦的纳迪亚,我们追踪了从多个来源转移到不同营养级的砷的可能方式,以及导致慢性砷吸收的相关季节性变化。这项工作考虑了农村社区通过食物链转移砷的可能来源-途径。2014 年和 2016 年不同收获季节采集的地下水、土壤、水稻和蔬菜样品中检测到的砷浓度。浅层地下水样品的砷含量范围为 0.1 至 354 µg/L,75% 的地点高于规定的限值博罗收获季节期间的 WHO (10 µg/L)。高土壤砷含量(~20.6 mg/kg)导致粮食作物中砷的积累。As conc 中的正相关。随着时间的推移,所有地点的增加表明表土中的砷逐渐积累。未抛光的大米样品显示出高 As 含量(~1.75 mg/kg),抛光减少了 80% 的 As。在蔬菜中,灌溉要求高的禾本科植物科和保持高水分的茄科植物的砷含量最高。受污染的动物饲料(禾本科)和牛用草皮水被证明会污染牛奶(0.06 至 0.24 µg/L),因此应采取策略和做法将砷暴露降至最低。
更新日期:2020-04-20
down
wechat
bug