Ziya Circular Economy Park is the biggest e-waste recycle park in North China before 2011, its function was then transformed in response to regulations and rules. In this paper, investigation was conducted to research the residual concentrations of 14 analytes (12 heavy metals and 2 non-metals) in the surface soil of Ziya Circular Economy Park and surrounding area. Both ecological and health assessments were evaluated using GI (geo-accumulation index) and NPI (Nemerow pollution index), and associated health risk was assessed by using USEPA model. According to the ecological risk assessment, Cu, Sb, Cd, Zn and Co were seriously enriched in the soil of the studied area. The health risk assessment proposed by USEPA indicated no significant health risks to the population. Soil properties, such as pH and organic matter, were found to correlate with the enrichment of heavy metals. Arsenic concentrations in the soil were found positively correlated to dead bacteria concentrations. Spatial distribution of heavy metals revealed that Ziya Circular Economy Park was the dominant pollution source in the studied area. Findings in this study suggest that enough attention should be payed to the heavy metal pollution in Ziya Circular Economy Park.

子牙循环经济园区是2011年之前华北地区最大的电子垃圾回收园区，其功能随后根据法规进行了调整。本文对子牙循环经济园区及周边地区表层土壤中14种分析物（12种重金属和2种非金属）的残留浓度进行了研究。生态评估和健康评估均使用GI（地理累积指数）和NPI（Nemerow污染指数）进行评估，相关的健康风险则使用USEPA模型进行评估。根据生态风险评估，研究区域土壤中Cu，Sb，Cd，Zn和Co的含量严重升高。美国环保局（USEPA）提出的健康风险评估表明，该人群没有重大的健康风险。土壤特性，例如pH值和有机物，被发现与重金属的富集相关。发现土壤中的砷浓度与死菌浓度呈正相关。重金属的空间分布表明，子牙循环经济园区是研究区域的主要污染源。这项研究的结果表明，应该在子牙循环经济园区内对重金属污染给予足够的重视。