Heavy metals and health risk of rice sampled in Yangtze River Delta, China

被引：15
作者：
Lin, Jian [1 ,2 ,3 ]
Sun, Da [4 ]
Zhang, Ziliang [1 ,2 ]
Duan, Zengqiang [1 ,3 ]
Dong, Jinlong [1 ,3 ]
机构：
[1] Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Peoples R China
[2] Univ Chinese Acad Sci, Beijing, Peoples R China
[3] Minist Nat Resources, Technol Innovat Ctr Ecol Evaluat & Remediat Agr L, Hangzhou, Peoples R China
[4] Technol Extens Stn Agr & Fisheries Nanhu Dist Jia, Jiaxing, Peoples R China
来源：
FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE | 2021年 / 14卷 / 02期
基金：
国家重点研发计划;
关键词：
Contaminated paddy; heavy metal; health risk; rice; Yangtze River Delta;
D O I：
10.1080/19393210.2021.1903568
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Dietary exposure to heavy metals is threatening human health worldwide. In this study, the concentration of cadmium, mercury, arsenic and chromium in 258 samples of brown rice, grown in Yangtze River Delta where the soils were low-level contaminated, were investigated. In 12 (4.6%) and 10 (3.9%) rice samples the concentrations of Cd and Hg, respectively, exceeded the limit for food. ANOVA showed that Cd and Hg concentrations in rice grains collected from Nanjing and Jiaxing were higher than in the less developed city Yancheng. Students' t-test showed Cd and Hg were accumulated in hybrid rice higher than in conventional rice. The hazard quotients (HQs) showed a low risk from rice consumption. Conventional rice was recommended to cultivate to reduce the current risk in the soil defined as safe use level in Yangtze River Delta.
引用
收藏
页码：133 / 140
页数：8
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