| 英文摘要 |
In order to effectively decrease the dust pollution which caused by cars, and to continue the policies from year to year, the Bureau of Environmental Protection in Tainan county has carried out the project which enhances road flushing during 2008 --- personal road flushing business. The project began on Sept 10, 2010 and ended on Dec 31, 2010. The progress of project are as shown in Table 1. The abstract of achievements is as follows.
1. The complete length of road flushing of the project is 2,604.5 kilometers which exceeds the goal of 2,345 kilometers demanded by contract, and the total execution rate is 111.1 %； the execution length of road sweeping is 3,936.02 kilometers which exceeds the goal of 3,675 kilometers demanded by contract, and the execution rate is 107.1 %. Each assignment was completed smoothly.
2. The complete length of road flushing of the project is 2,604.5 kilometers, and total use of water is 3,191.93 tons; the use of water is 1.16 - 1.28 tons one kilometer per month, and use of water averages 1.23 tons one kilometer. It exceeds the contract's standards.
3. The complete dust gathering amount of road sweeping is 105.71 tons. The dust gathering amount is 23.96 – 37.33 kilograms a kilometer per month and the average of dust gathering amount is 26.86 kg/km. It is estimated that dust removal amount of street flushing is 69.74 tons and road sweeping by manual labor is 4.28 tons; total removal amount is 179.73 tons. It shows that the plan can scavenge the dust on the road with telling effect, and the dust pollution which caused by automobiles can be controlled.
4. Now the total length of street flushing is 2,604.5 kilometers; the reduction amount of TSP is estimated to be 35.9 tons. And the amount is 54.3 kilograms as the result of 3,936.02 kilometers street sweeping. So the total amount is 90.3 tons because of street flushing and sweeping project.
5. According to the investigation of degree of pollution, began on September 2010 and ended on December 2010, A level road accounts for 200.82 kilometers of totality (69.6%), and B level 87.90 kilometers (30.4%), C level 0 kilometers (0.0%).
6. In respect to managing street dust, according to monthly statistics for this county, the average ratio value of general soil is 20.5 %. This results in a predicted increase to C-level pollution sweeping frequency. In 2009 the county bureau of environmental protection randomly inspected five roads, the street dust loading is 2.88-11.96 g/m3. Three roads are A-level, one is B-level, and one is C-level; and inspected ten roads very month. The total length is 55.4 kilometers, 4 roads are A-level, 6 are B-level and C-level is none.
7. The total statistics for this year acknowledges the maintainance of 18,926.130 kilometers of roads which exceeds the goal of 2,917 kilometers demanded by contract (exceeding by a rate of 648.8 %) indicating that this project has incited commitment and effort to this work. Concurrently, according to the Bureau of Environmental Protection, united sharply reduced formula calculations, estimates TSP sharply reduced volume to be approximately 261.2 tons.
8. This project therefore implements a multitude of robust restraining measures：1. To urgently begin implementing measures dealing with the worsening of air quality；2. To establish coordinated reports and measures that examine and deal with the sources which pollute dirty roads；3. Policies restraining the pollution of farming and irrigation canals；4. Measures to educate the public how to assist Bureau procedure；5. Restrictive ；6. The maintainance and upkeep of flushers & equipment；7. Guide the appropriate enterprises in designing roads that take proper care of public signs 8. Measures which assist in dirty and messy places and build cases；9. To announce sanitary measures in accord with the Bureau of Environmental Protection, which rapidly disperse the sources of air polluting matter. Such emissions are to be restrained and reduced. 10. Pollution sweeping measures which assist large scale activities within the county's nearby road sanitation and public villages.
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