| 英文摘要 |
The county's annual average air quality index (AQI) in Yilan County from 2019 to 2024 dropped from 43.0 to 38.7, and the overall air quality showed an improvement.
Analysis of the air quality indicators in recent years shows that the main pollutants are PM2.5 and O3-8hr. According to the statistics of 2014 (the latest data is updated as of December 26), the manual monitoring data of PM2.5 in Yilan County is 8.7 μg/m3, which is lower than that in 2012. During the same period, the 8.6 μg/m3 slightly increased by 1.2%, mainly due to the decrease in rainfall in the first half of this year, which was not conducive to the deposition of pollutants from abroad; O3-8hr 95% slightly increased from 55.8 ppb in 2013 to 56.1 ppb in 2014. The average O3 values for the two years were 28.1 ppb in 2014 and 28.3 ppb in 2012, respectively, indicating an improvement in O3 levels this year.
In order to promote the improvement of air pollution control in the county and assist the Environmental Protection Bureau in obtaining the results of the "114th Annual Municipality, County (City) Government Environmental Protection Performance Assessment Program" organized by the Ministry of Environment, this program will assist the Environmental Protection Bureau to submit the Ministry of Environment data every month. Complete the submission of all designated materials within the time limit, integrate the execution plan workload and cross-departmental work, and assist in promoting the development of the "Yilan County Air Pollution Prevention Plan (2014 to 2017)". In April, the Ministry of Environment held a meeting to complete the initial review of the plan.
In response to the Ministry of Environment's assessment and related implementation work, this project will help promote the maintenance and adoption of air quality purification areas and road dust cleaning operations. The first audit guidance work was completed in June, and in accordance with the Ministry of Environment's assessment standards, it will assist the Environmental Protection Bureau in handling excellent The adoption of clean area selection activities encourages each office to continue to improve its related business; in addition, a testing company certified by the Environmental Inspection Institute has completed 4 points of atmospheric harmful air pollutant monitoring operations downwind of the industrial zone, assisting the Ministry of Environment in establishing a national harmful air pollutant monitoring system. Background information on air pollutant emissions.
In terms of mercury pollution control in the cement industry, this project has assisted the Environmental Protection Agency in completing the establishment of mercury distribution survey data for four cement plants under its jurisdiction in 2013. Reference literature and the 2013 survey results of this project have both found that the cement process accumulates mercury. Large amounts of emissions will occur within a few hours after the raw material mill is shut down. Therefore, in 2014, we assisted the four cement plants in our jurisdiction to cooperate in the relevant investigation and continued to track the implementation of the pollution reduction self-management plan of each plant. At the same time, this plan The project will assist in tracing the source of high-mercury materials and investigate the concentration of mercury in the ambient air around cement plants. A relevant consultation meeting is expected to be held in the second half of the year to discuss the relevant survey results of this year and the implementation results of the cement plant's self-management plan.
According to the second phase of the Ministry of Environment's air pollution control plan, in order to promote ozone improvement, this plan targets three major VOCS emission plants in the jurisdiction to conduct pipeline investigation and inspection. Based on the investigation results, MIR and PEC will be used to examine their ozone generation potential (Ozone Formation Potentials (OFP) and assist in providing recommendations on areas where pollution prevention can be improved.
In addition, the project assisted the commissioned certification unit to perform 200 inspections of equipment components at the Yilan plant of Double Bond Chemical Co., Ltd., to detect pollution emission issues and help promote improvements, and to regularly maintain the weather station and the Dong'ao section of the Suhua Diversion Project. The license plate recognition system of the company checks large diesel vehicles passing by, regularly reports vehicles that violate the "Yilan County Material Transportation Vehicle Pollution Prevention Facilities Management Autonomous Regulations", and assists the Environmental Protection Bureau in subsequent penalties and controls. Implement and promote the reduction of air pollutant emissions in the county to achieve the goal of improving air quality.
|