To investigate heavy metal accumulation in mine soils and evaluate health risk through soil digestion, a total of 30 soils were collected from coal mine of Huaibei City, Anhui Province, China, one of the most important coalfields. The mean concentrations of Cd, Cr, Cu, Ni, Pb, and Zn were 0.162 ± 0.054, 11.82 ± 3.27, 12.03 ± 5.42, 21.86 ± 7.78, 55.09 ± 12.41, and 41.46 ± 32.07 mg kg^–1, respectively. The percentages of heavy metals exceeding background value of soil were 86.7% for Cd, 13.3% for Cu, 16.7% for Ni, 100.0% for Pb, and 20% for Zn. The percentages of heavy metal contents exceeding Grade I of Environmental Quality Standard for soil were 23.3% for Cd, 96.7% for Pb, and 10.0% for Zn. The heavy metal contents did not exceed guideline values according to Grade II of Environmental Quality Standard for soil. Average accessibility of Cd and Pb in the intestinal phase were lower than the gastric phase while a contrary result for Cr, Cu, Ni, and Zn. Both adults and children may not experience non-carcinogenic and carcinogenic health risk through soil digestion.

为了调查矿井土壤中重金属的积累并通过土壤消化评估健康风险，从最重要的煤田之一的安徽省淮北市的煤矿中收集了30种土壤。Cd，Cr，Cu，Ni，Pb和Zn的平均浓度为0.162±0.054、11.82±3.27、12.03±5.42、21.86±7.78、55.09±12.41和41.46±32.07 mg kg ^–1， 分别。超过土壤本底值的重金属百分比分别为：Cd为86.7％，Cu为13.3％，Ni为16.7％，Pb为100.0％，Zn为20％。土壤中重金属含量超过《环境质量标准》 I级的百分比为：镉为23.3％，铅为96.7％，锌为10.0％。重金属含量不超过土壤环境质量标准II级的指导值。肠道阶段Cd和Pb的平均可及性低于胃阶段，而Cr，Cu，Ni和Zn则相反。成人和儿童都不会因土壤消化而遭受非致癌和致癌健康风险。