| 英文摘要 |
According to the air quality data assessment of Taitung in 2018, 94% of numbers of days the air quality index(AQI) were less than 50. The project continuously reviewed Taitung air pollution prevention and control plan, and announced the revised version in March, 2018; constantly modified the Air Quality Serious Deterioration and Emergency Control Measure Standard, through helding 2 times of prevention drills and 1 cross-bureaus conference of air pollution reduction, regularly renewed the contact information of the authorized agencies, and uploaded the documents of emergency measures when the air quality reach the quiteria of serious deterioration level.
This project analyzed the trend of each pollutant during 2014-2018, the concentration of PM10 rised from afternoon until evening in general , and slightly increased in average this year at Taitung air quality monitoring station; About O3, both Taitung and Guanshan air quality monitoring stations revealed the improvement annually; PM2.5 concentration data showed a great decrease in 2018 compare to 2014 at Taitung air quality monitoring station; for SO2, the material of waterproof work influenced the monitoring data of Guanshan since January of 2018, while the Taitung air quality monitoring station appeared the decreasing trend annually; at Taitung monitoring site, NO2 concentration related to the traffic, data showed the level significantly drop during the rush hour in 2018; besides, CO data achieved the lowest average concentration this year.
Base on the Gaussian model simulation, the air pollution caused by open burning during phase one farming cultivation period in Chishang and Guanshan contributed 30% to PM2.5, 80% to SO2 and 30% to NOx respectively of annual emissions. Further, this event usually occurred within one month, and the modeling results show that this month contribute 58% to PM2.5 24hrs maximum concentration, 59% and 80% to SO2, NOx hourly maximum concentration separately for Guanshan air quality monitoring stations.
In the aspect of air quality maintenance the and performance management, this project collected and summarized the results of each sub-projects every month as the information for improve the strategy of the pollution reduction plan, and submitted the monthly and quauterly reports to Environmental Protection Administration (EPA) Executive Yuan.
According to the indoor air quality evaluation requirements of the central competent authority, expanded the survey type and 55 CO2 detection have been completed, data showed the average concentration level were normal, besides, selected 5 higher CO2 concentration premises for inspecting and measuring of standard approaches deisignated by the central competent authority. There are 18 premises been designated and officially announced by EPA in Taitung for the first batch and second batch, and they all completed the regular inspection and complied with the regulations of Indoor Air Quality Act.
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