Cadmium, arsenic, and mineral nutrients in rice and potential risks for human health in South China.

Autor: Liu Q; College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China., Lu W; College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China., Bai C; College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China.; Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, People's Republic of China., Xu C; College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China., Ye M; College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China., Zhu Y; College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China., Yao L; College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China. lyaolx@scau.edu.cn.; Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, People's Republic of China. lyaolx@scau.edu.cn.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2023 Jul; Vol. 30 (31), pp. 76842-76852. Date of Electronic Publication: 2023 May 29.
DOI: 10.1007/s11356-023-27857-7
Abstrakt: Rice (Oryza sativa L.) is one of the most important staple food crops worldwide. For people fed on rice, toxic elements cadmium (Cd) and arsenic (As) and mineral nutrients in rice are pivotal to evaluate potential risks of harmful element intake and malnutrition. We collected rice samples of 208 cultivars (83 inbred and 125 hybrid) from fields in South China and determined Cd, As, As species, and mineral elements in brown rice. Chemical analysis shows that the average content of Cd and As in brown rice were 0.26 ± 0.32 and 0.21 ± 0.08 mg·kg -1 , respectively. Inorganic As (iAs) was the dominative As species in rice. Rice Cd and iAs in 35.1% and 52.4% of the 208 cultivars exceeded rice Cd and iAs limits, respectively. Significant variations of rice subspecies and regions were found for Cd, As, and mineral nutrients in rice (P < 0.05). Inbred rice had lower As uptake and more balanced mineral nutrition than hybrid species. Significant correlation was observed between Cd, As versus mineral elements like Ca, Zn, B, and Mo (P < 0.05). Health risk assessment indicates that high risks of non-carcinogenic and carcinogenic of Cd and iAs, and malnutrition, in particular Ca, protein and Fe deficiencies, might be caused by rice consumption in South China.
(© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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