砷
化学
污染
生物利用度
锌
食品科学
环境化学
铁质
硫酸盐
硒
人类健康
生物
生态学
生物信息学
有机化学
医学
环境卫生
作者
Yi Fang,Yuxue Cui,Xiaoli Mou,Lü Li,Jiali Shentu,Meifang Zhu
出处
期刊:Toxics
[MDPI AG]
日期:2022-12-26
卷期号:11 (1): 23-23
被引量:2
标识
DOI:10.3390/toxics11010023
摘要
Iron-based materials have good stability in reducing the mobility and toxicity of heavy metals, but the behavior and human health risks of heavy metals could be affected by dietary components. This study investigated the effect of typical diets (lettuce, cooked rice and apples) on the bioaccessibility and morphological changes of arsenic (As) and zinc (Zn) in contaminated site after stabilization by ferrous sulfate (FeSO4). The results showed that the bioaccessibility of As and Zn were increased in a co-digestion system of food. The augmented effect on As bioaccessibility mainly occurred in the gastric phase: apple > lettuce > cooked rice (p < 0.05), while the augmented effect on Zn bioaccessibility mainly occurred in the intestinal phase: lettuce > apple > cooked rice (p < 0.05). FeSO4 weakened the dissolution effect of dietary components on As bioaccessibility, and reduced As bioaccessibility in the gastric and intestinal phases by 34.0% and 37.9% (p < 0.05), respectively. Dietary components and Fe fractions influenced the speciation and distribution of As and Zn. FeSO4 reduced the hazard quotient (HQ) and carcinogenic risk (CR) values of the contaminated soil by 33.97% and 33.59%, respectively. This study provides a reference for a better understanding of more realistic strategies to modulate exposure risks of heavy metal-contaminated sites.
科研通智能强力驱动
Strongly Powered by AbleSci AI