Abstract
Numerous studies have investigated concentrations of lead (Pb) and cadmium (Cd) in rice in China, but have come to divergent conclusions. Therefore we systematically reviewed and meta-analyzed the available evidence on levels of Pb and Cd in rice in different regions of China in order to assess the potential risk to human health. The meta-analysis included 24 studies of Pb levels and 29 studies of Cd levels, published in 2011–2021. The pooled Pb concentration in rice was 0.10 mg per kg dry weight (95% CI 0.08−0.11), while the pooled Cd concentration was 0.16 mg per kg dry weight (95% CI 0.14−0.18). These levels are within the limits specified by national food safety standards. However, the total target hazard quotient for both metals exceeded 1.0 for adults and children, suggesting that rice consumption poses a health risk.
Funder
the National Key R&D Program of China
Chongqing Science and Technology Bureau
Publisher
Public Library of Science (PLoS)
Reference46 articles.
1. Contamination assessment, health risk evaluation, and source identification of heavy metals in the soil-rice system of typical agricultural regions on the southeast coast of China;Y Ren;Environmental Science and Pollution Research,2021
2. Spatial distribution and risk assessment of heavy metals in paddy soils of Yongshuyu irrigation area from Songhua river basin, Northeast China;ZW Cui;Chin Geogr Sci,2018
3. Heavy metal distribution, translocation, and human health risk assessment in the soil-rice system around Dongting Lake area, China;L Tang;Environmental Science and Pollution Research,2019
4. Accumulation, translocation, and assessment of heavy metals in the soil-rice systems near a mine-impacted region;F Du;Environmental Science and Pollution Research,2018
5. Heavy metal contamination of paddy soils and rice (Oryza sativa L.) from Koani Field (Macedonia);N Rogan;Environ Geochem Health,2009
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