Emission characters of particulate concentrations and dry deposition studies for incense burning at a Taiwanese temple

Abstract

Suspended particulate concentrations were measured at the Tzu Yun Yen temple in the Taichung region of Taiwan. The temple performs traditional incense burning. A universal sampler and a micro-orifice uniform deposited impactor (MOUDI) sampler with a dry deposition plate were used to measure the particulate concentrations. The results show that the average PM_2.5/PM₁₀ ratio was 74% during the incense burning period at this temple. In addition, the average suspended particulate (PM₁₀) element concentration of anthropogenic element Zn (495 ng/m³) was higher than the other anthropogenic elements (Pb, Mn, Ni, and Cd). Furthermore, the average mass size distribution was bimodal with major peaks occurring at 0.32-0.56 mm and 5.6-10 mm during the incense burning period. The dry deposition velocities of Cd used fine particulates (PM_2.5) and suspended particulate (PM₁₀) mode were 1.86 and 0.99 cm/s in this study, respectively.

Keywords

dry deposition velocities incense metal element particulate matter size distribution temple

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