Accumulation Characteristics and Health Risk Assessment of Heavy Metals in Soil-Crop System Based on Soil Parent Material Zoning

This study used both the element occurrence form analysis and the chronic health risk assessment method to investigate the accumulation characteristics of heavy metals in the soil-crop system and the health risk assessment of agricultural products in northeastern Yunnan, which is a typical area of S...

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Bibliographic Details
Published inHuanjing kexue Vol. 44; no. 1; p. 405
Main Authors Chen, Zi-Wan, Xu, Jing, Hou, Zhao-Lei, Peng, Min, Yang, Fan, Chen, Jie, Xu, Yong-Qiang, Yang, Shu-Yun, Li, Jia-Yun, Yu, Lin-Song
Format Journal Article
LanguageChinese
Published China 08.01.2023
Subjects
Cadmium - analysis
China
Crops, Agricultural - chemistry
Environmental Monitoring
Humans
Lead - analysis
Metals, Heavy - analysis
Risk Assessment
Sand
Soil - chemistry
Soil Pollutants - analysis
Zinc
China
high geological background
soil heavy metals
parent material
soil-crop system
health risks
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Summary:This study used both the element occurrence form analysis and the chronic health risk assessment method to investigate the accumulation characteristics of heavy metals in the soil-crop system and the health risk assessment of agricultural products in northeastern Yunnan, which is a typical area of Southwest China where heavy metals are enriched in soil. Based on the study of 1137 groups of agricultural products and corresponding root soils, the results showed that the soil cadmium (Cd) and lead (Pb) in the lead-zinc ore concentration area were higher than the risk-intervention values of the "Soil Environmental Quality Risk control standard for soil contamination of agricultural land" (GB 15618-2018), whereas the soil Cd in the other parent material areas was within the screening-intervention buffer zone, and Pb was below the minimum risk-screening value. According to the National Food Safety Standard of China (GB 2762-2017), the heavy metal Cd in potatoes and soybeans in the area seriously exceeded the standa
ISSN:0250-3301
DOI:10.13227/j.hjkx.202203205