Soil ecological risk caused by compound pollutants is a topic that deserves increasing attention, and soil risk early warning is a more in-depth discussion on this topic. In this study, we collected soil samples from Changchun, a typical industrial city, and determined the contents of 13 heavy metals (HMs) (0.00 mg kg^-1-6380 mg kg^-1), 16 polycyclic aromatic hydrocarbons (PAHs) (0.00 mg kg^-1-27.7 mg kg^-1), 7 polychlorinated biphenyls (PCBs) (0.30 μg kg^-1-168 μg kg^-1), and 8 organochlorine pesticides (OCPs) (0.00 mg kg^-1-4.52 mg kg^-1). The soil ecological risks of compound pollutants were assessed. The results showed that PAHs were the greatest risk pollutants, followed by PCBs and HMs, and OCPs were the smallest risk pollutants. Most of the ecological risks of compound pollutants were classified as “moderate severity” level according to the (contamination severity index) CSI evaluation criteria. With the help of modern industrial economic theory, through the analysis of the annual accumulation of pollutants, it is possible to predict the future pollutant content in Changchun, and the soil risks could be forewarned. The results showed that if active measures were not taken to reduce the accumulation of PAHs in Changchun soil, the CSI-PAHs would be classified as “ultra-high severity” level in 2035.

复合污染物引起的土壤生态风险是一个值得关注的话题，土壤风险预警是对该话题的更深入探讨。在这项研究中，我们从典型的工业城市长春采集了土壤样品，并测定了13种重金属（HMs ）（0.00 mg kg ^-1 -6380 mg kg ^-1），16种多环芳烃（PAHs）（0.00毫克千克^-1 -27.7毫克千克^-1），7个多氯联苯（PCB）（0.30微克千克^-1 -168微克千克^-1），和8种有机氯农药（0.00毫克千克^-1 -4.52毫克公斤^{- 1个}）。评估了复合污染物的土壤生态风险。结果表明，PAHs是最大的危险污染物，其次是PCB和HMs，OCP是最小的危险污染物。根据（污染严重性指数）CSI评价标准，大多数复合污染物的生态风险被归为“中等严重性”水平。借助现代工业经济理论，通过对污染物的年累积量的分析，可以预测长春市未来的污染物含量，并可以预见土壤风险。结果表明，如果不采取积极措施减少长春土壤中多环芳烃的积累，那么到2035年，CSI-PAHs将被归类为“超高严重性”水平。