| Summary: | 碩士 === 國立中興大學 === 環境工程學系所 === 102 === This study conducted the experiment to simulate mass distribution of fine and coarse particulates generated from burning incenses in temple. The incenses were provided by four selected prosperous temples in Taichung area. To evaluate the emission factors and the mass production rate of PM2.5 and PM2.5-10 from burning the incenses, the experiments were performed with a closed chamber. In addition to measure the concentrations of the emitted particulates, the contents and the concentrations of the water-soluable anion and cation in PM2.5 and PM2.5-10 were further analysed. Burning incense in open air condition was used to simulate the situation in temple. The results showed the concentrations of PM2.5 and PM10 ranging between 1754 ~
35136 μg/m3 and 2431 ~ 35364 μg/m3, respectively, while average ratio of PM2.5 / PM10 was about 0.92. These results indicated that PM10 produced by burning incense were pover ninety percent in PM2.5. In the closed chamber experiments, the concentrations of PM2.5 and PM2.5-10 were 8558 ~ 28748 μg/m3 and 14434 ~ 28748 μg/m3, respectively. PM2.5 / PM10 ratio was as high as 0.99. Regarding the emission factors, approximately 11.3 ~ 69.6 mg of PM2.5 and 5.6 ~65.8 mg of PM10 were emitted by burning one gram of incense. In average, the emission factors of PM2.5 and PM2.5-10 were 23.0 mg/g and 25.2 mg/g, respectively. These results
were close to those reported in the literature. Furthermore the average mass production rates of PM2.5 and PM10 were 0.272 mg/min and 0.293 mg/min, respectively. Comparing these results with those in the literature, burning different type of incense generated the particulates roughly with the same rate. Finally, the measurements of the water-soluble anion and cation showed that most aboundent of anion in PM2.5 was 74% of Cl¯, in PM2.5-10 there were 41% of NO3¯ and
33% of NO2¯. But K+ was the highest content in PM2.5 and in PM2.5-10, which accounted for 78% and 69% respectively. According to the analyses of these species, Cl¯ and K+
were the highest concentrations in PM2.5, which ranged between 0.424 ~ 2.350 μg/m3 and 0.577 ~ 2.663 μg/m3, respectively. But NO3¯ and NO2¯ in PM2.5-10 had a closer
distribution in concentration. Their contents were less than 0.359 μg/m3 and 0.157 μg/m3.
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