The achievements of this annual project are stated as below:
For Chencily Auto-Monitoring Station, the data obtaining rates of the analyzers were all above 95%, whereas those of the meteorological equipments were above 97%. For the PM10 monitoring reports, Chencily, EPA Tainan and EPA Annan stations showed the significant season influences on PM10. The readings in summer were obviously lower than those in winter and the trends of the three Stations were identical. During the project period, from April 2008 to March 2009, PM10 counted for 17 episode days in total: 8 days at Tainan station, 6 days at Annan station and Chencily station had the least of 3 days. For the ozone (O3) monitoring reports, Chencily, EPA Tainan and EPA Annan stations had similar readings and the trends were also identical. During the project period, O3 counted for 18 episode days. Among them, Tainan station had the most of 10 days, Chencily station stood at the second with 6 days, and Annan station had the least of 2 days. The high value mostly happened in summer, which showed the impact of sunshine. NOX and NMHC are the two major factors that form ozone (O3). Since they are mainly from the discharge of motor vehicle and motorcycle, it explains why Tainan station, which locates in urban area, had the most episode days.
The TSP results at the Manual Operation Monitoring Stations were complied with the air quality standard. From year 2002 to 2008, TSP values have been showing an identical trend, high in winter and low in summer. As for the analysis of TSP constituents, the concentration of Cl- was between 1.49~10.70μg/m3. The trends were identical, slightly higher in winter. The highest of 14.56μg/m3 occurred in 2004 and the lowest of 3.76μg/m3 did in 2002. The concentration of NO3- in TSP constituents was between 3.49~25.17μg/m3. The measurements over the past years showed a trend of high in winder and low in summer. The highest of 11.25μg/m3 occurred in 2003 and the lowest one of 8.96μg/m3 did in 2006. The concentration of SO42- in TSP constituents was between 5.05~39.54μg/m3. The highest of 17.26μg/m3 occurred in 2002 and the lowest of 11.23μg/m3 did in 2005. The concentration of Pb in TSP constituents was between 0.031~0.099μg/m3. The highest of 0.112μg/m3 occurred in 2002 and the lowest of 0.030μg/m3 did in 2005. The measurements of all stations were below the monthly mean (1.0 μg/m3) in accordance with the air quality standard.
The trends of dust fall at the Manual Operation Monitoring Stations were all similar. In the past years, the highest value was 11.69 tons/square km/month in 2004 and the lowest value was 4.23 tons/square km/month in 2001.
For the electronic billboard, a total of 341 advertisements were broadcasting. Among them, 207 were for Tainan EPB, which counts for 61%; the rest was for the Revenue Service Office, Tainan City Government, National Tax Administration, etc. It certainly has provided an effective way to publicize the environmental protection policies.
the Manual Operation Monitoring Stations have already been used for many years, from 1992 to the present, the equipment has been already old. This plan proposes compiling funds and changing the old motorcycle. This method can reduce personnel working time and part replace.