| Summary: | 碩士 === 國立成功大學 === 環境工程學系碩博士班 === 92 === The objective of this study was to evaluate the impacts of the festival of Da-Jia Mazou on the ambient air quality.
Chamber study was used to characterize the emission of pollutants from incense burning. Particle sizes emitted from incense burning were generally less than 2.5 �慆 with the ratio of PM2.5 to PM10 greater than 90%. The dominant compositions in PM were OC and EC with contribution fractions of 42% and 19%, respectively. The emission factors in unit of mg/g-incense for PM10, PM2.5, formaldehyde, acetaldehyde, and acetone were 39, 36, 2.9, 1.7 and 0.6, respectively.
Pollutant concentrations including PM, NO3-, SO42-, NH4+, EC, OC and HCHO were greater during festival activities. The greater concentrations during festival were due to the emission from incense burning and mobile sources. The results of the analyses by receptor model showed that the major contribution sources to PM10 were road dust, (NH4)2SO4, NH4NO3 and mobile sources. The contribution fraction of mobile sources during festival was greater than that during non-festival by factor of two.
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