Abstract 1. Untile 25 December 2005, 386 inspections have been performed as part of this project. The inspection records indicate that 24 aggregate plants and 22 concrete premixing plants and 5 asphalt manufacturing plants and 24 aggregate storage site are monitored by the Taichung County Environmental Protection Bureau(EPB). Most of these plants are located in Taitung City,Dawu Township and Chenggong Township. 2. Compare the percentage of paved ground in aggregate plant and concrete premixing plants, paved ground in aggregate plant is about 42~100%,and about 36% in concrete premixing plants. 3. The consulting services on air pollution control have been provided to 4 aggregate plants and 4 concrete premixing plants and 1 asphalt manufacturing plants and 2 aggregate storage site. It is estimated that a total of 167.44 metric tons of particulate emission was reduced during the last year. 4. At the beginning of this project, 6 plants carry out road cleaning on voluntary basis. The number of plants that sign up to the road cleaning program is increased to 23 at the end of this project. 5. Ambient air monitoring on TSP has been carried out at 43 plants. All monitoring results are below 500 ug/Nm3 specified in the Stationary Source Air Emission Standard.

aggregate plants,concrete premixing plants,asphalt manufacturing plants,aggregate storage site