Evaluation of heavy metal contamination of soil and the health risks in four potato-producing areas

Areas polluted by heavy metals in soil may pose a major risk to human health and ecological environment safety. In this study, 89 samples were collected from four potato producing areas (Libo, Chishui, Panxian Weining) Guizhou Province, China, the concentrations of 9 analyzed measured. The aims study was evaluate pollution index some potato-producing Province using geoaccumulation method, load method assessment method. results revealed that Igeo<0 Libo Igeo>0 except Pb, Igeo As Sb less than 0 Weining, other elements varying degrees. is (1.47) > Weining (1.39) (0.67), Chishui generally no polluted, soils polluted. risks potatoes through food ingestion are 1. terms carcinogenesis, each area Cr Cd. would be produced certain carcinogenic dermal contact. had strong adults inhalation. non-carcinogenesis, children under pathways. carcinogenesis inhalation pathway greater children, non-carcinogenesis Ingestion contact adults. suggest attention should paid remediation contaminated protect health.