| SPATIAL AND SEASONAL DISTRIBUTIONS OF ATMOSPHERIC CARBONACEOUS AEROSOLS IN PEARL RIVER DELTA REGION, CHINA |
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| 作者单位： | Junji Cao，Shuncheng Lee，Kinfai Ho，Shichun Zou，Xiaoye Zhang and Jianguo Pan1 Sfate Key Laboratory of Loess & Quatemary Geology，Institute of Earth Environment，Chinese Academy of Sciences，Xi'an 710054，P. R. China 2 Research Center for Urban Environmental Technology and Management，Department of Civil and Structural Engineering，The Hong Kong Polytechnic University，Hong Kong，P. R. China 3 Department of Chemistry，Zhongshan University，Guangzhou 510275. P. R. China4 Zhuhai Environmental Monitoring Station，Zhuhai 519000，P. R. China Author to whom correspondence should be addressed. E-mail: cao@loess.llqg.ac.cn |
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| 基金项目： | 国家自然科学基金，Research Grants Council of Hong Kong，The Hong Kong Polytechnic University |
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| 摘 要： | Concentrations and spatial distributions of organic carbon (OC) and elemental carbon (EC) in atmospheric particles were measured at 8 sites in four cities (Hong Kong, Guangzhou, Shenzhen and Zhuhai) of Pearl River Delta Region (PRDR), China during 2001 winter period and 2002 summer period. PM2.5 (particie diameter smaller than 2.5 um) and PM10 (particie diameter smaller than 10 um) samples were collected on pre-fired quartz filters with mini-volume samplers and analyzed using thermal optical reflectance (TOR) method. The average PM2.5and PM10 Ievel were 60.1 and 93.1 μg·m-3, respectively, with PM2.5 constituting 65.3% of the PM10 mass. The average OC and EC concentrations in PM2.5 were 12.0 and 5.1 μg·m-3, respectively, while those in PM10 were 16.0 and 6.5 μg·m-3, respectively. The carbo-naceous aerosol accounted for 37.2% of the PM2.5 and 32.8% of the PM10. The highest concentrations of OC and EC were observed at Guangzhou city in both vvinter and summer seasons. The average OC/EC ratios were 2.
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| 关 键 词： | 有机碳 空间分布 周期性分布 中国 珠江三角洲 元素碳 大气颗粒 气溶胶 |
| 收稿时间： | 2003-03-17 |
SPATIAL AND SEASONAL DISTRIBUTIONS OF ATMOSPHERIC CARBONACEOUS AEROSOLS IN PEARL RIVER DELTA REGION, CHINA |
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| Junji Cao,Shuncheng Lee,Kinfai Ho,Shichun Zou,Xiaoye Zhang,Jianguo Pan. SPATIAL AND SEASONAL DISTRIBUTIONS OF ATMOSPHERIC CARBONACEOUS AEROSOLS IN PEARL RIVER DELTA REGION, CHINA[J]. China Particuology, 2003, 1(1): 33-37. DOI: 10.1016/S1672-2515(07)60097-9 |
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| Authors: | Junji Cao Shuncheng Lee Kinfai Ho Shichun Zou Xiaoye Zhang Jianguo Pan |
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| Affiliation: | 1. State Key Laboratory of Loess & Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi''an 710054, P. R. China;2. Research Center for Urban Environmental Technology and Management, Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hong Kong, P. R. China;3. Department of Chemistry, Zhongshan University, Guangzhou 510275, P. R. China;4. Zhuhai Environmental Monitoring Station, Zhuhai 519000, P. R. China;1. CSIR-National Institute of Oceanography, Dona Paula, Goa 403004, India;2. Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi 221005, India;3. Atmospheric Chemistry Department, Max-Planck Institute for Chemistry, Mainz 55128, Germany;1. Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;4. CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing 100101, China;5. Laboratory of Green Chemistry, Lappeenranta University of Technology, Sammonkatu 12, FIN-50130 Mikkeli, Finland;1. State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China;2. Department of Chemical and Environmental Engineering, The University of Nottingham Ningbo China, Ningbo, China;3. Beijing Municipal Environmental Monitoring Center, Beijing, China;1. College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China;2. School of Ecology and Environment, Zhengzhou University, Zhengzhou, 450001, China;3. Institute of Environmental Sciences, Zhengzhou University, Zhengzhou, 450001, China;1. Air Pollution and Health Effect Research Center, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand;2. Energy Technology Program, Department of Specialized Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla, 90110, Thailand;3. Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand;4. Department of Technology and Environmental Management, Faculty of Environment, Kasetsart University, Bangkok, 10900, Thailand;5. Department of Agro-Industrial, Food and Environmental Technology, Faculty of Applied Science, King Mongkut''s University of Technology North Bangkok, Bangkok, 10900, Thailand;6. School of Industrial Education and Technology, King Mongkut''s Institute of Technology Ladkrabang, Bangkok, 10520, Thailand;7. Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor, Malaysia;8. Department of Mechanical and Mechatronics Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand;9. Department of Chemical Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand;1. State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China;2. State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, China;3. Collaborative Innovation Center for Regional Environmental Quality, Beijing, China;4. National Research Center for Environmental Analysis and Measurement, Beijing, China;5. School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA;6. Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan;7. Division of Atmospheric Sciences, Desert Research Institute, Reno, NV, USA;8. Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, USA;9. College of Environmental Sciences and Engineering, Peking University, Beijing, China |
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| Abstract: | Concentrations and spatial distributions of organic carbon (OC) and elemental carbon (EC) in atmospheric particles were measured at 8 sites in four cities (Hong Kong, Guangzhou, Shenzhen and Zhuhai) of Pearl River Delta Region (PRDR), China during 2001 winter period and 2002 summer period. PM2.5 (particle diameter smaller than 2.5μm)and PM10 (particle diameter smaller than 10 μm) samples were collected on pre-fired quartz filters with mini-volume samplers and analyzed using thermal optical reflectance (TOR) method. The average PM2.5 and PM10 level were 60.1naceous aerosol accounted for 37.8% of the PM2.5 and 32.8% of the PM10. The highest concentrations of OC and EC were observed at Guangzhou city in both winter and summer seasons. The average OC/EC ratios were 2.4 for PM2.5and 2.5 for PM10, indicating the presence of secondary organic aerosols. The OC and EC in PRDR were found to be strongly correlated (correlation coefficients ＞0.6), which implied that similar emission source contribute to the ambient carbon particles. |
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| Keywords: | PM2.5 PM10 Organic carbon Elemental carbon OC/EC ratio Pearl River Delta Region |
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