| 英文摘要 |
This project has started from the 15th of May 2019, and officially completed on 14 May 2020.The entire process was followed by the schedule specifications. As of the 15th of May 2020, the achievement rate was up to 100%.The main propose of this project is to improve the dust forecasting system integrity and can be separated into four aspects:Strengthen the river aeolian dust forecast model,Upgrade the aeolian dust forecast contingency mechanism,Implementation of the collaboration platform,Enhance public satisfaction.
According to the observation of riverbed changes, there was an accomplishment of bare lands improvement works with a total area of 84 hectares by Inter-Agency Cooperation. This made a decrease of 13.35 hectares of bare lands compared to the same period last year.19 micro monitoring devices were established near three main river area. Based on the data analysis, In-Situ can mainly divided into 3 parts, including long-range transport (2 days), air quality unhealthy event (64 days), and strong wind warning (9 days).On the days with long-range transport, it showed high PM10 concentrations. On the other hand, days with air quality unhealthy presented lower wind speed and higher PM10 concentration, and PM10 decreased when the rose of the wind speed. Nevertheless, PM10 concentrations were lower on the days with strong wind warning. That means, the river aeolian dust prevention plan in this city is highly effective. Moreover, the effects of General community environment was also analyzed. After construction, it led to a decrease in PM10 levels, especially in Da-An District Yong-An Apartment Complex. In terms of public satisfaction, it was carried out by the Village public communication campaigns this year. Overall satisfaction have achieved a 95% rating, and there’s 70% can truly feel the improvement of river aeolian dust.
Regarding the environmental cleanliness, include street sweeping that needed to cooperation between different departments, and cleaning among northeast monsoon, covering an overall distance of around 58,672 kilometers. Results showed that not only decrease 137.4 tons of PM10 during the project period, but no any aeolian dust event occurred continuously for 6 years.
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