中文摘要：

生物滞留设施可以有效削减降雨径流，并通过过滤、吸附和生物降解去除雨水径流水中的氮、磷、多环芳烃、油脂、重金属、细菌和病毒等，其主要设计参数是：暴雨重现期、面积、稳定下渗率、下凹深度和淹水时间。建议改造城市附属绿地为生物滞留，加快该技术在我国的推广应用。

英文摘要：

Bioretention can not only abate stormwater runoff volume but also remove pollutants such as nitrogen, phosphorous, polycyclic aromatic hydrocarbon pollutants, oil and grease, heavy metals, pathogen and viruses through filtration, adsorption and biological degradation. The critical parameters of bioretention design include rainfall recurrence interval, bioretention area, infiltration rate, depth and flooding duration. Retrofitting the affiliated green spaces into bioretention can be a breakthrough in the application of bioretention technology during urban non-point source pollution control in China.