城市降雨径流污染初始冲刷效应对BMPs选择的启示

指出城市降雨径流污染初始冲刷效应(FFE)在城市非点源污染的研究中占有重要地位。综述FFE的判定及大小定量化方法、季节性FFE的概念和污染物的相态对FFE的影响。FFE初中期雨水径流污染物浓度高的特性,为选择经济高效的最佳管理措施(BMPs)提供了理论依据和重要启示。结合FFE及冲刷过程中污染物的形态提出的工程BMPs,能使资源配置和污染控制效果达到最优化,为城市公共管理部门的决策和实践提供建议。

First flush effect of urban storm water runoff pollution on implications for BMPs selection

The importance of the first flush effect （FFE） of urban storm water runoff in urban non-point pollution is described. The judgment, the quantification method, the seasonal FFE concept, and the phase state effect on FFE are reviewed comprehensively. The feature of a higher concentration of the pollutants during the initial period of storm water runoff supplied a theoretical basis and important implication for selecting economical and effective best management practices （BMPs）. The proposed engineering BMPs considering the combination of the FFE and the patterns of flushed pollutants were useful approaches for optimizing resources allocation and pollution control, which can help guide the city public management sector in instituting effective policies and practices.