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%.

• 挡尘墙外侧的总悬浮颗粒物浓度降低了77%25，可吸入颗粒物降低了55%25；微生物总数与大肠杆菌浓度降幅大于85%25；