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高屏地區受擴散條件不良影響,局部地區懸浮微粒濃度偏高,空氣品質達不良等級。環保署提醒民眾應儘量避免戶外劇烈活動。


EPA \ TAQMN \ Air Quality Monitoring \ Supersite \ Background

Background

The suspended micro particles in the atmosphere (otherwise known as aerosols) impact the environment deeply by lowering visibility, changing the weather and climate, or affecting solar radiation and other problems. In recent years, the public has gained an interest in the suspended micro particles in the atmosphere and aside from wanting to know more about the relationship of these particles and the changes in our natural world, they also want to know its relationship with human health. As fine particle aerosols easily enter the human body through breathing, most represent fine particle aerosols with diameters less than 2.5 μgm with P2.5. Furthermore, a reaction that changes gas into solids is what mainly composes aerosols, such as nitrogen oxides and sulfur oxides forming nitrate and sulfate from photochemical reactions and also volatile organic substances forming organic carbon and other mechanisms through derivative reactions which is why derivative aerosols are mainly dispersed in suspended micro particles. In order to effectively control the source of suspended micro particles, one must understand how they are formed. Therefore, the forming and the content and density of the substances that form these micro particles become very important. Current air quality monitoring stations only have matter density detection for PM10 and PM2.5 micro particles and lack detection for the content density of micro particles, which is why additional detection abilities such as PM2.5 physics, chemical characteristics have been added. These results will show the relationships between micro particles and the source of pollution or become reference points for health risk exposure studies which will be beneficial in creating micro particle air quality standard policies. Currently the network created by micro particle super monitoring stations and air quality monitoring stations will greatly increase air quality monitoring and air analysis abilities to become a great boon for grasping Taiwan's future air quality.

Taiwan's super monitoring station began planning and construction in August of 2000 and began operations the November of the following year at Taipei county's Hsinchuang sports park, where after all equipment and instruments were installed in March of 2002, it began official operations. The exterior of the station and interior instruments are as in diagrams 1, 2, and 3. Fushing road is at the north side of the monitoring station and has increased traffic during rush hours; the southwestern side is occupied by the green boulevard in the sports park that often holds carnival events during holidays; 100 meters to the southwest is the Hsinchuang baseball field which often hosts night games from March to September, which cause Fushing road to increase in traffic. The pollution around the station is contributed by not only traffic, but the people who gather at night or during events.

About 9 km north to northwest of the station is the Wugu industrial area and Linkou's petrochemical plant, both sources of potential industrial pollution. The monitoring station is also located between the two major traffic hubs of the Hsinchuang area (north: Chungshan expressway and Highway two; south: Highway one Chungzheng road) which are possible sources of major traffic pollution.

[Diagram 1 –V North side of the northern super monitoring station]
[Diagram 1 –V North side of the northern super monitoring station]
[Diagram 2 –V Condition of internal instruments in the northern super monitoring station]
[Diagram 2 –V Condition of internal instruments in the northern super monitoring station]
[Diagram 3 -  Condition of internal instruments in the northern super monitoring station]
[Diagram 3 - Condition of internal instruments in the northern super monitoring station]

As the characteristics of pollution are different from the greater Taipei region in the Kaoping area, super monitoring station clusters began construction in 2003 in the south. Three supplementary satellite monitoring stations were constructed in Kaoshiung city's outer area, Kaoshiung county's Chiaotou township, and Pingtung county's Chaozhou town to supplement the core monitoring station in Kaoshiung county's Daliao township. These stations began official operations in April of 2005.

The micro particle super monitoring station's core station is located in Fooyin University in Kaoshiung county's Daliao township. Immediately west is Fengshan and Kaoshiung city; the expressway in the south and Fenglin road in the east are the major arteries of traffic; southeast is the Dafa industrial area; south is the Linyuan petrochemical industrial zone; southwest is the Linhai industrial zone. It is clear that this station is located in an area where traffic and industrial pollution are very severe. Furthermore, Daliao is located in in an area that sits squarely on the path in which pollution is transferred in the Kaoping region; along with the neighboring sources of pollution, this monitoring station is an ideal location to study the emission, transfer, and effect of pollution. The core station includes two station houses which are positioned as in diagram 4.

[Diagram 4 –V Exterior of station houses in the southern super monitoring core station
[Diagram 4 –V Exterior of station houses in the southern super monitoring core station
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