注：主城区大气可吸入颗粒、二氧化氮年日均值的1996 - 2000年数据为总悬浮粒和氮氧化物年日均值。

Note: Data of annual average daily inhalable motes and SO2concentration in downtown from 1996 to 2000 refers to suspended motes and oxy-nitrogen.

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挡尘墙外侧的总悬浮颗粒物浓度降低了77%，可吸入颗粒物降低了55%；微生物总数与大肠杆菌浓度降幅大于85%；

The field experiment results show that TSP concentration reduced by 77%, PM10 reduced by 55%, total microbes and colibacillus concentration reduced by more than 85%.

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