In road runoff, the EMCs of contaminants are all high and different in different function areas. The order of mean EMCs of TSS, COD_Cr B0D_5 TN, NH_4~+-N TP DP is : traffic area> commercial area > industrial area > residential area.

• 路面径流中,污染物的EMC值在不同功能区的浓度都比较高,并且在不同功能区其分布有很大的差异,TSS、COD_(Cr)、BOD_5、TN、NH_4~+-N、TP、DP的平均EMC值在四个功能区的顺序为:交通区>商业区>工业区>居民区。