| 英文摘要 |
The execution results for various task items of the program in this year are mainly listed as below:
(1) The erection operations of 2 air quality monitoring vehicles are completed.
(2) In general air quality monitoring processes, it indicates that levels of sulfur dioxide and nitrogen oxide are higher on the downwind side than on the upwind side. It is assumed that major part of values of monitoring comes from the Sixth Naphtha Cracking Plant (六輕工業區) and all the values of monitoring are consistent with related air quality standards. In the aspect of particulate matter, all previously monitored values on the downwind side are similar to that on the upwind side, and the PM10 value rises significantly in northeast monsoon seasons. It is assumed that Zhuoshui River (濁水溪) Is the source of such particulates. In the aspect of PM2.5, its source should be far and is brought by northeast monsoon.
(3) Regarding reduced sulfides and ammonia, the values of monitoring are assumed that are affected by the Six Naphtha Cracking Plant and its surroundings. As for Volatile Organic Compounds (VOCs), main VOCs, including ethylene, propene, ethane, propane, normal butane, trimethylmethane, hexane, benzene, toluene, p-xylene, m-xylene and o-xylene, in the Sixth Naphtha Cracking Plant's processes are frequently identified. It is assumed that the source of related values of monitoring of such VOCs is the Six Naphtha Cracking Plant itself.
(4) The 3-D lidar processes can be divided into two stages: first, a large-scale scanning method is used to monitor changes in the concentration and covering area of plume particulates. Second, sensitive areas of the emission are identified and specific sources of pollution are scanned and monitored. In this process, both PD01 and PE01 indicate abnormal concentration in particular period of time.
(5) During July 16 to 23, 2012, meteorological and ozone observations were implemented in Fengan Elementary School (豐安國小), which is a downwind site that was 4.5 km from Yulin Offshore Industrial Park (雲林離島工業區). In these observations, height changes of the mixing layer were approximately matched with its characteristic, which is higher in the day due to the daylight and lower in the night due to cooling of the Earth's surface.
(6) Both PD01 and PE01 indicate abnormal concentration in particular period of time, and further related tests are suggested to be performed. And further are suggested to set new monitoring point at Shihcuo branch school (許厝分校) and Federation of Mailiao Aquaculture Producers (麥寮水產合作社).
|