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

Air Toxic and Environmental Analysis Laboratory, Hungkuang University, Sha-Lu, Taichung 433, Taiwan, gcfang{at}sunrise.hk.edu.tw

Chia-Chium Chu

The chief of Intensive Care Unit, Chien Yu Regional Teaching Hospital, Lin Yuang, Kaohsiung 832, Taiwan

Yuh-Shen Wu

Air Toxic and Environmental Analysis Laboratory, Hungkuang University, Sha-Lu, Taichung 433, Taiwan

Peter Pi-Cheng Fu

Division of Biochemical Toxicology, National Center for Toxicological Research, Jefferson, Arkansas 72079, USA

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.

Key Words: dry deposition velocities • incense • metal element • particulate matter • size distribution • temple

Toxicology and Industrial Health, Vol. 18, No. 4, 183-190 (2002)
DOI: 10.1191/0748233702th140oa


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