2022 Pingtung County River Dust Prevention and Improvement Promotion Plan
Absrtact |
The implementation period of this project is from May 18, 2022 to May 17, 2023. All work items have been accomplished (as shown in Table 1) and the first draft of term report was submitted by April 27, 2023 pursuant to the project contract requirements. After receiving the opinions and suggestions from scholars and commissioners on May 5, 2023, this project revised the term report and replied to scholars’ and commissioners’ opinions and suggestions, and submitted their consent replies to the bureau for review on May 19. Extracts of the enforcement results of all work items are shown as follows:
During the implementation of this year's project, 83 days of on-site surveys, 2 satellite image analysis and 55 points of UAV aerial photography operations were carried out to analyze and compare the dust potential area of the Gaoping River riverbed, and actively promote the river management offices to complete the improvement of the exposed riverbed. A total of 978.55 hectares of exposed reverbed had been improved in the period from January to December 2022, which is 24% higher compared with that in the same period of 2021 and the most improvement areas for exposed reverbed in the recent ten years, and correspond to 71.9 tons of PM10 emission reduction based on their actual control periods; similarly, a total of 629.1 hectares of exposed reverbed had been improved in the period from January to April 2023, and is about equivalent to 13.9 tons of PM10 emission reduction based on their actual control periods. During the project implementation period, there were two river fugitive dust episodes that occurred on June 24 and September 12, 2022. However, by utilizing ISCST3 Dispersion Model with river dust early-warning data provided by the Environmental Protection Administration and weather forecast information from the Central Weather Bureau to stimulate the impact areas of river fugitive dust, this project mastered in advance the highly potential impact areas of 15 possible fugitive dust episode days which are on June 25, July 7, July 20, August 3, August 4, August 9, August 19, August 24, August 28, September 2, 2022 and January 24, January 27, February 12, April 5, April 18, 2023. After each response unit implemented preventive dust suppression operations, the river fugitive dust circumstances were effectively suppressed. According to statistics, there was no river fugitive dust episode day from January to the end of April in 2023.
As regards the environmental cleanup, this project has finished 3,220.4 kilometers of river dust environmental cleanup with a total PM10 emission reduction of about 8.4 tons, and effectively reduced the occurrence of road dust along the river. In addition, the environmental cleanup results of the roads along the Gaoping River of the river management offices, Pingtung County Construction Project Management Project, Sand Plant Project and this project have been compiled, and a total of 57,378.2 kilometers of road cleaning operations have been carried out. The estimated reduction in PM10 is 149.2 metric tons, showing the efforts of all environmental cleanup units to actively improve the fugitive dust pollution along the Gaoping River.
In terms of dust propaganda and educational training, this project held three river fugitive dust educational training activities at Yongan Community Development Association of Pingtung City on August 11, at Daqiu Community Development Association of Jiuru Township on August 12 and at Sancha Community Development Association of Ligang Township on September 7, 2022, respectively; and held two river fugitive dust educational propaganda at junior high or elementary schools along the Gaoping River, which are Talou Elementary School in Ligang Township on November 1 and Houzhuang Elementary School in Jiuru Township on November 11, 2022, respectively. The total number of participants in the activities mentioned above reached 387 and questionn
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Keyword |
Gaoping River, River fugitive dust, UAV, PM10
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