n order to reduce the fugitive dust quantity and to maintain the hygienic of the city street, the Environmental Protection Department of Chiayi County (EPD) applied for a subsidy from the Environmental Protection Administration (EPA) to implement the Street Fugitive Dust Improvement plan to improve the street environment and the air quality. The plan started on April 15, 2003 since the Bureau executed a contract to wash the street of 4,000 kilometer in length. Until December 2003, a total of 6609.4kilometer street has been processed. It has reaches the 165% of the planned progress. Meanwhile, the Street Wash Vehicle Management System was set up in order to monitor the street wash schedule on daily basis A series of four Total Suspended Particulates (TSP) Testing were conducted prior to, during, and after the fugitive dust improvement processes. The results showed that the fugitive dust has been reduced with a ratio somewhere between 15% ~ 45% by street washing task. The 505 public survey sample showed that the general public felt that the air quality and the fugitive dust on the street were more acceptable than before. There are over 94% residents who support this street washing plan.

street dust、clean street