The continuous field measurements of soluble aerosol compositions at the Taipei Aerosol Supersite,Taiwan |
| |
| Institution: | 1. Research Center for Environmental Changes, Academia Sinica, Taipei 115, Taiwan, ROC;2. Graduate Institute of Environmental Engineering, National Central University, Jungli 32054, Taiwan, ROC;3. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;1. Graduate Institute of Environmental Engineering, National Central University, Jhongli 32001, Taiwan;2. Research Center for Environmental Changes, Academia Sinica, Taipei 115, Taiwan;3. Department of Atmospheric Sciences, National Central University, Jhongli 32001, Taiwan;4. Department of Chemistry, National Central University, Jhongli 32001, Taiwan;5. Environmental Protection Administration, 10042, Taiwan;6. Institute of Environmental and Occupational Health Sciences, National Yang Ming University, Taipei 112, Taiwan;7. Department of Natural Resource, Chinese Culture University, Taipei 11114, Taiwan;1. State Environmental Protection Key Laboratory of Formation and Prevention of the Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai, 200233, China;2. Institute of Energy and Climate Research, IEK-8: Troposphere, Forschungszentrum Jülich GmbH, 52428, Jülich, Germany;3. Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China;4. School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China;5. Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary, Key Laboratory of Tropical Atmosphere-Ocean System, Ministry of Education, Southern Marine Science and Engineering Guangdong Laboratory Zhuhai, Zhuhai, China;6. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China;1. Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan;2. School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan;3. Department of Cosmetic Application and Management, St. Mary''s Junior College of Medicine, Nursing and Management, Yilan, Taiwan;4. Department of Nursing, Cardinal Tien College of Healthcare & Management, New Taipei City, Taiwan;5. School of Public Health, College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan;6. Department of Public Health, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan;1. Department of Occupational Safety and Health, China Medical University, No. 91 Hsueh-Shih Road, Taichung City, 40402, Taiwan;2. Department of Environmental and Occupational Health, National Cheng Kung University, No.1, University Road, Tainan City, 70101, Taiwan;3. Department of Health Risk Management, China Medical University, No. 91 Hsueh-Shih Road, Taichung City, 40402, Taiwan;4. National Environmental Health Research Center, National Health Research Institutes, No.35, Keyan Road, Zhunan, Miaoli County, 35053, Taiwan;5. Department of Public Health, China Medical University, No. 91 Hsueh-Shih Road, Taichung City, 40402, Taiwan;1. Research Center for Environmental Changes, Academia Sinica, Taipei, 11529, Taiwan;2. Graduate Institute of Environmental Engineering, National Taiwan University, Taipei, Taiwan;3. Department of Atmospheric Sciences, National Central University, Taoyuan, 32001, Taiwan;4. Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei, 10608, Taiwan;5. Graduate Institute of Environmental Engineering, National Central University, Taoyuan, 32001, Taiwan |
| |
| Abstract: | The characteristics of ambient aerosols, affected by solar radiation, relative humidity, wind speed, wind direction, and gas–aerosol interaction, changed rapidly at different spatial and temporal scales. In Taipei Basin, dense traffic emissions and sufficient solar radiation for typical summer days favored the formation of secondary aerosols. In winter, the air quality in Taipei Basin was usually affected by the Asian continental outflows due to the long-range transport of pollutants carried by the winter monsoon. The conventional filter-based method needs a long time for collecting aerosols and analyzing compositions, which cannot provide high time-resolution data to investigate aerosol sources, atmospheric transformation processes, and health effects. In this work, the in situ ion chromatograph (IC) system was developed to provide 15-min time-resolution data of nine soluble inorganic species (Cl−, NO2−, NO3−, SO42−, Na+, NH4+, K+, Mg2+ and Ca2+). Over 89% of all particles larger than approximately 0.056 μm were collected by the in situ IC system. The in situ IC system is estimated to have a limit of detection lower than 0.3 μg m−3 for the various ambient ionic components. Depending on the hourly measurements, the pollutant events with high aerosol concentrations in Taipei Basin were associated with the local traffic emission in rush hour, the accumulation of pollutants in the stagnant atmosphere, the emission of industrial pollutants from the nearby factories, the photochemical secondary aerosol formation, and the long-range transport of pollutants from Asian outflows. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
