| Summary: | 碩士 === 明志科技大學 === 環境與安全衛生工程系環境工程碩士班 === 103 === According to the past air pollution events, specific pollution activities could cause the deterioration of the air quality. In this study, the impact on the air quality from emission particles had been investigated during the Yanshuei beehive firework and the agricultural waste burning. The sampling site is located on the roof of the building in the campus of the Yanshuei Junior High School in Tainan City. PM2.5, black carbon mass concentrations and particle number concentrations were measured continuing from February 10, 2014 to February 20, 2014. In addition, previous studies had found that the mass concentrations of the black carbon could be underestimated due to the loading artifacts on the filter when the Aethalometer was used. In order to overcome this loading artifact, two Aethalometers were used simultaneously to measure black carbon mass concentrations under different sampling flow rates in this study causing a different deposition rate of particles on the filter paper. Then, a correction model was used to determine the corrected mass concentrations of black carbon. Measurement results demonstrated that measured BC mass concentrations for 6 L/min were lower than those for 2 L/min. After BC correction, the difference for the levels between these two corrected BC mass concentrations was only 1.5%.
Based on the measurement results in this study, PM2.5 mass hourly average concentrations during the Yanshuei beehive firework were 6 times higher than those at normal day. Otherwise, BC mass hourly average concentrations during the agricultural waste burning were 3 times higher than those at normal day. At the same time, the particles from the agricultural waste burning could bind with a lot of UV enhanced organic compounds due to UVBC mass hourly average concentrations during the agricultural waste burning were 11 times higher than those at normal day. Despite the Yanshuei beehive firework or agricultural waste burning, the high levels of particle number concentrations could be observed at these two events.
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