Due to the rapid development of urbanization, the contamination of heavy metals in urban soils has become one of the major concerns of environmental and risk to humans. The main objective was to determine the contamination of six heavy metals in 25 urban soils and also to evaluate the associated health risk via diverse indices for adults and children. The mean concentration of Pb (47.48 mg/kg), Cr (43.24 mg/kg), Cu (40.64 mg/kg), Zn (34.68 mg/kg), Co (16.54 mg/kg), and Ni (7.55 mg/kg) exceeded the geochemical background values. Pb and Zn were closely attributed to traffic sources. Geo-accumulation index (I_geo) showed that Pb and Co in the soils were at the moderately pollution level, while 4% of soil samples were moderately polluted to heavily pollution levels by Cu. Enrichment factor (EF) showed that soils presented minor to severe anthropogenic pollution levels in the investigated region. The heavy metals to the non-carcinogenic risk of humans in the investigated region are absolutely from Cr and Pb, while the carcinogenic risk is controlled by Cr, and the remaining metals pose no possible risk to the local people. Specially, children had larger health risks in terms of non-carcinogenic risks than adults which may be related to their behavioral and physiological characteristics.

由于城市化的快速发展，城市土壤中重金属的污染已成为环境和人类风险的主要问题之一。主要目的是确定25种城市土壤中六种重金属的污染程度，并通过针对成人和儿童的各种指标来评估相关的健康风险。铅（47.48 mg / kg），铬（43.24 mg / kg），铜（40.64 mg / kg），锌（34.68 mg / kg），钴（16.54 mg / kg）和镍（7.55 mg / kg）的平均浓度kg）超过了地球化学背景值。铅和锌与交通来源密切相关。地理聚集索引（我_地理）表明土壤中的Pb和Co处于中等污染水平，而4％的土壤样品被Cu中等污染至严重污染水平。富集因子（EF）表明，在研究区域中，土壤呈现出轻微至严重的人为污染水平。被调查区域中对人类无致癌风险的重金属绝对来自铬和铅，而致癌风险则由铬控制，其余金属对当地人没有任何风险。特别是，就非致癌风险而言，儿童比成年人具有更大的健康风险，这可能与其行为和生理特征有关。