This project covered the operation and maintenance works of Air Quality Monitoring Station (AQMS) in Tainan City in which assuring the normal conditions of facilities of AQMS and quality of sampling data, reporting the comprehensive maintenance records, summarizing the improvement measures as well as reporting latest conditions to Environmental Bureau. Taken into account assuring of maintenance work in compliance with standard of quality and assurance of AQMS, this project included the formulation a set of standard operation procedures and maintenance form. The major achievements of project, started from 11 May 2017 to 31 January 2018, were summarized as followings: 1. Air Quality Monitoring Station Sampling Analysis a) Dustfall Measurement Dustfall collection and analysis was scheduled to be completed 108 times throughout the contract term. Sampling failed on May of 2017. As of 31 January 2018, it completed 95 times of dust fall collection and analysis and achieved 88% completion rate. b) Total Suspended Particulates (TSP) Sampling Analysis Total suspended particulates (TSP) sampling analysis was scheduled to be completed 216 times throughout the contract term. From the planning period to 31 January 2018, it completed 214 times of analysis and achieved 99% completion rate. The monitoring results at all stations met the air quality standards(TSP 24 hour 250 μg/m3). The geometric mean over the years were below the air quality standards(130 μg/m3) 2. Air Quality Monitoring Station maintenance and Calibration Works a) Maintenance Works of Analyzers and Samplers Maintenance of Analyzers and Samplers was scheduled to be completed 216 times throughout the contract term. From the planning period to 31 January 2018, it completed 214 times of operation and achieved 99% completion rate. b) Calibration Works of Analyzers and Samplers One-point Flow Calibration and Multi-point Flow Calibration were scheduled to be completed 216 times and 36 times throughout the contract term. From the planning period to 31 January 2018, it completed 214 times and 36 times of operation and achieved 99% and 100% capture rate respectively. Timer Verification should be performed every July; the 24-hour error should not exceed 2 minutes. Timer Verification was performed on 7 July 2017, it was scheduled to be completed 12 times throughout the contract term and completed 12 times of operation and achieved 100% completion rate. c) Precision Check Precision check was completed 9 times throughout the contract term and achieved 100% completion rate. 3. Operation, Maintenance and Calibration Works of Air Quality Monitoring Station Monthly, quarterly, bi-yearly and yearly maintenance works were completed 18, 6, 4 and 2 times respectively and achieved 100% completion rate. Excluding daily automatic calibration and data loss caused by regular maintenance, station at Chengxili Station and Nanxi Station achieved 90% valid data capture rate of the contract provisions. About the monitoring results, the high value occurred in the autumn and winter seasons in terms of the trend of the concentration of each pollutant. PM10 and PM2.5 were at lower concentrations in Chengxili Station near the seaside and Nanxi Station in the mountains. Because the Nanxi station were less affected by fixed or mobile sources, SO2 and NOx values were significantly lower than other stations. Due to the high zero point of Nanxi Station, the CO value of the station were relatively high. O3 were relatively high at Chengxili station due to its environmental impact. NMHC were generally higher in Tainan Station and Annan Station. 4. Routine maintenance of LED electronic display broad Routine maintenance of LED electronic display broad was scheduled to be completed 9 times throughout the project term. From the planning period to 31 January 2018, it recorded 9 times of work and reached 100% completion rate. A total of 266 pieces of daily air quality information were broadcasted, and 40 items (80 pieces) were broadcast for other assistance.

TSP, Dustfall, PM2.5