School of Public Administration, Hebei University of Economics and Business, Shijiazhuang, China.
Hebei Province Geographic Information Platform for Socio-Economic and Social Development, Hebei University of Economics and Business, Shijiazhuang, 050061, China.
PLoS One. 2021 Jul 29;16(7):e0255509. doi: 10.1371/journal.pone.0255509. eCollection 2021.
Heavy metal contamination in soil is an important factor affecting the determination of safe redevelopment methods for industrial and mining land. In this paper, the soil environment of a typical mining city in northern China was taken as the research object, 148 surface soil samples were collected and the contents of heavy metals were measured. The health risk classification criteria for heavy metal contamination of soils and the method of priority assessment for redevelopment were used. The results showed that: the risk of potential utilization types of heavy metals in the abandoned industrial and mining land is different. When the utilization type is agricultural land, the soil environmental quality is good as a whole, and a small number of plots are polluted by cadmium (Cd)and mercury (Hg); When the land use type is construction land, the risk of heavy metal pollution comes from chromium (Cr); The priority of development in this study area is as follows: agricultural land > construction land > ecological land.
土壤重金属污染是影响工矿废弃地安全再开发方法确定的重要因素。本研究以我国北方典型矿业城市的土壤环境为研究对象，采集了 148 个表层土壤样品并测定了重金属含量，采用土壤重金属污染健康风险评价分级标准和再开发优先评估方法。结果表明：废弃工矿地的重金属潜在利用类型风险不同，当利用类型为农用地时，土壤环境质量整体良好，少数点位受到镉（Cd）和汞（Hg）污染；当利用类型为建设用地时，重金属污染风险来源于铬（Cr）；该研究区的开发优先级如下：农用地＞建设用地＞生态用地。
