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Characteristics of Carbonaceous Aerosol at Taichung Harbor, Taiwan during Summer and Autumn Period of 2005
Authors:Guor-Cheng Fang  S C Lee  Wen-Jhy Lee  Yan Cheng  I-Cherng Lin
Institution:(1) Air Toxic and Environmental Analysis Laboratory, Hungkuang University, Sha-Lu, Taichung, 433, Taiwan;(2) Department of Civil and Structural Engineering, Research Center for Environmental Technology and Management, The Hong Kong Polytechnic University, Hung Hum, Kowloon, Hongkong, China;(3) Department of Environmental Engineering, National Cheng Kung University, Tainan, 70101, Taiwan, Republic of China;(4) Sustainable Environment Research Center, National Cheng Kung University, Tainan, 70101, Taiwan, Republic of China
Abstract:In recent years, suspended particle pollution has become a serious problem in Taiwan. The carbonaceous materials EC and OC are play important roles in various atmospheric processes. The primary OC/EC ratio approach is applied to assess the contribution of secondary organic aerosol (SOA) to the PM2.5 and PM10 mass at the Taichung harbor sampling site. The results indicated that the average EC and OC concentration were 1.06 and 6.50 μg m−3, respectively, in fine particulate. And the average EC and OC concentration were 4.04 and 40.32 μg m−3, respectively, in coarse particulate at Taichung Harbor sampling site. In addition, and the average EC/OC rations was 8.72 in fine particle, respectively, at Taichung Harbor, Taiwan during summer and autumn period of 2005. The fine particle exhibited high particulate concentrations in October, and lower concentration particulate occurred in August. And in this study OC and EC concentrations in this study are compared with those in other cities. The results of EC and OC concentration in this study are also compare with those other cities.
Keywords:EC  OC  Coarse  Fine  Harbor
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