期刊
FOOD CHEMISTRY
卷 316, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2020.126213
关键词
Heavy metal; Contamination; Health risk; Target hazard quotient; Crop consumption
资金
- Natural Science Foundation of China [41877514, 41601558]
- Guangdong Province Foundation [2017A030313244]
- Natural Science Foundation of China, Red Soil CZO project [41571130052]
- Research on Migration/Transformation and Safety Threshold of Heavy Metals in Farmland Systems, National Key Research and Development Program of China [2016YFD0800400]
- GDAS Special Project of Science and Technology Development [2018GDASCX-0602, 2018GDASCX-0106]
Heavy metal contamination is one of the most pressing concerns for food security and human health. Understanding the risk to human health posed by soil pollution that enters the food chain is paramount. Here, we systematically assessed potential risks due to heavy metal (Cd, Cr, Pb, Hg, and As) contamination in soil and crops (2241 pairs of soil and crop (78 species) samples) in the Pearl River Delta urban agglomeration of China. Cadmium was the most common pollutant among all the heavy metals identified in soil and crops. The greatest risk of Cd ingestion from leaf and root vegetable consumption was concentrated within Huizhou. The highest risks to human health from heavy metals were found in rice and maize. This is the first time that the risk to human health from heavy metal contamination in soil and crops, and their associated spatial risk pattern, in China have been assessed systematically.
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