Toxic metals in rice-fish co-culture systems and human health

Ecotoxicology and Environmental Safety

Jian Zhou¹  Zhipeng Huang²  Zhongmeng Zhao²  Jun Du²  Han Zhao²  Lu Zhang²  Qiang Li²  Yuanliang Duan² 

[1] Corresponding author.;Fisheries Institute, Sichuan Academy of Agricultural Sciences, Chengdu 611731, Sichuan, China;

关键词: Rice-fish co-culture system;    Toxic metal;    Health risk;    Paddy field;   

DOI  :  

来源: DOAJ

【 摘 要 】

The threat of contamination with toxic metals (TMs) to food security and human health has become a high priority in recent decades. Hence, countless studies have investigated the safe cultivation of rice and fish, respectively, as the main food crop and protein source worldwide. For the present study, a literature search of the PubMed, Web of Science, ScienceDirect, and China National Knowledge Infrastructure databases identified 11 studies that met the inclusion criteria and provided sufficient data to assess the relationship between TM contamination of rice, fish, and shrimp products from rice-fish co-culture systems and carcinogenic risk (CR) and non-carcinogenic risk (non-CR) to humans. The result showed that consumption of Monopterus albus and rice contaminated with a single TM had a slight non-CR, which is synergistically increased by multiple TMs. Consumption of Procambarus clarkii posed no non-CR to humans. The CR of all studies ranged from 1.77 × 10-10 to 5.65 × 10-8, and less than 1 × 10-6, indicating that under current food safety guidelines, rice and fish produced by rice-fish co-culture systems pose no CR. Rice-fish co-culture systems can greatly reduce the CR and non-CR of TMs to humans.

【 授权许可】

Unknown