| 英文摘要 |
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.
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