1. Thirty control points were established in May, 2008. In addition, the control points were checked every month. Ten control points each were established for the three river basins and totally 30 places. Additional two control points were established in November, 2008. The J18 and T7 control points were thus the conducted places for the prevention of fly dust derived from exposed lands from Tachia and Taan Rivers, respectively, this year. Totally 32 places of control points. 2. Five hundred and seventeen time-places of audit-patrol control work and 17 pieces of pollution case have been reported to the Environmental Protection Bureau. The fined notifications have been sent to management organization and related improvements were requested to be finished before February 28, 2009. 3. To cooperate with the notification system of outdoor burning of Environmental Bureau, 12 and two times have been notified during the harvesting of 1st (July) and 2nd (November) crops, respectively. Totally, 14 times have been notified. 4. To conduct the subsequent maintenance work of exposed lands conducted in 2006 and 2007, two to three times of maintenance work per month in 2008. Up to August 31, 2008 ten times of maintenance work have been conducted. The accumulated amount of sprinkled water was 150,000 L and the maintained area was 23.5-hectares. This do make that the vegetation of conducted sites reclaimed with green-cover of previously exposed lands of river basins effectively inhibit fly dust. Unfortunately, all conducted sites have been destroyed by the storm of Sinlaku typhoon. 5. The pollution maps have been made by means of the imagines of satellites, photos taken by monitored airplane, and photos taken in-site. For the present time, around 1,490 hectares of exposed lands of river basins can be controlled and their totally corresponding amount of emission was 3139 tons per season. 6. Ten times of sky audit mission have been finished during July, August, and October, 2008. 7. Two time-places of governmental policy declaration and explanation of effective prevention step have been held in 2008. Professor C.Y. Lin from National Chung Hsing University and Professor H.W. Chen from Chaoyang University were invited as the speakers in the 1st and 2nd time-place seminar, respectively. 8. Two sites in Taan River and one site in Tachia River of 36.2-hectares of exposed lands in river basins with potentially occurring of fly dust have been selected for carrying out the prevention engineering. Prior to engineering steps, site-level survey and application for approval from authorized organization were carried out and then three types of engineering steps namely straw mattress coverage, water coverage, and river bed with stone-crust (stone coverage) have been finished in November, 2008. Thereafter, subsequent maintenance has been executed seven time-months. 9. Guide Taichung Harbor Bureau to plan improvement proposal for prevention of fly dust. At the end of December, 2008, bamboo-twig fences for sand barrier have been installed at north drift-sand remediation zone. In addition, straw mattresses have been paved and then grass seeds sawed for 36.67 hectares. It is estimated that this straw mattress coverage with vegetation can reduce the amount of TSP of 1.5898 tons per month while bamboo-twig fences can barricade around 137,129.4-m3 of sand dust. 10. The 3rd River Bureau has planned the proposal regarding the improvement of fly dust from exposed lands of river bed. It was noted that it has been approved by the Water Resource Administration to grant NT $ 3 million dollars. The details were still designed and the pavement of straw mattress will be involved in the improvement engineering.

conducted places for the prevention of fly,audit-patrol control work,sky audit mission,namely straw mattress coverage, water coverage, river bed with stone-crust,bamboo-twig fences for sand barrier