| 英文摘要 |
(1) Through the FTIR continuous monitoring, exploring the offshore island industrial area on its surrounding of environmental impact concerned with different seasons.
As of Oct 16, 2017, Nanmen Welfare Building was completed 147 days of monitoring, Hsutso Campus of Qiaotou elementary school was completed 121 monitoring days; the total was 324 monitoring days.
Two lines of measured compounds: methanol, ethylene, acetylene, propane, propylene, n-butane, isobutylene, vinyl acetate, ammonia, o-xylene, methyl acetate. During the monitoring period, 1,3-butadiene, and vinyl acetate in Nanmen line exceeded the ambient standard but did not trigger the alarm standard. These lines have continuously tracked source of pollution. Exceeding the olfactory threshold of the compounds: Nanmen line has ammonia, 1,3-butadiene, butanone and toluene; Hsutso has ammonia and ethanol.
Two lines measured methyl acetate for the first time this year and the maximum concentration in Nammen was 619.21 ppb and Hsutso was 359.98 ppb.
(2) To investigate the trend and distribution characteristics of hazardous air pollutants, water-soluble cationic, and carbonaceous substances in industrial areas in near-industry area and far-industry area of Yunlin area; compare PAHs, metal elements, water-soluble anions and cationic, and their fingerprints in offshore island industrial area, near-industry area and far-industry area.
The first sampling was performed from January 9 to 12, 2017, including PM2.5 mass concentration and its composition analysis (carbon composition, cationic, heavy metal, PAHs) and gaseous PAHs, as two major spindles. The sampling was performed in the industrial area, near-industry area to select two sampling points and select the station in the Hukou Townships for far-industry area.
PM2.5 concentration was affect by the cold air group moved from the south until Jan. 10th, 2017 before sampling began to decrease weakened the impact which the concentration reached the highest peak on Jan. 10th, 2017. To use distance for distinguish industrial areas, PM2.5, carbon composition, ion concentration polar gas, solid PAHs are the higher concentration from the far to the near industrial area.
Heavy metal crustal elements accounted for the highest proportion of the total metal elements, and followed by industrial sources and the ratio of traffic source was relatively lowest.
The gas and solid dioxins as toxic concentration in the offshore island industrial area is higher than near-industry area and far-industry area; also, the far-industry area is slightly higher than the near-industry area.
(3) To perform VOCs monitoring in the offshore island industrial area and its neighbor area, in order to understand the concentration of VOCs trends in Yunlin region.
As of Nov 16, 2017, the implementation of seven sampling which each sampling in the industrial area selected three sampling points, the outside of factory with high exposure area for 3 points and the outside of the factory with exposure area for 2 points; a total of VOCs Analysis was 56 points/times.
The maximum concentration in the outside of the factory was detected 49.9 ppb of Methanol; the K8400 substation of the inside of the factory was detected 189.0 ppb of methanol. With regard to the number of compounds was detected, acetone and methanol were measured for more times; the inside of the factory was detected propane, methanol, acetone, isobutane, n-butane, isopentane, n-pentane, toluene for more times. Comparing with the fixed source of air pollutants for ambient emissions standards, results are lower than the ambient air standard.
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