Modelling the formation and atmospheric transport of secondary inorganic aerosols with special attention to regions with high ammonia emissions |
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| Authors: | E Renner R Wolke |
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| Institution: | 1. rdscientific, Newbury, United Kingdom;2. School of Earth Sciences, University of Melbourne, Parkville VIC 3010, Australia;3. Atmospheric Chemistry Services, Okehampton, Devon, United Kingdom;4. Biogeochemistry Research Centre, School of Chemistry, University of Bristol, Bristol, United Kingdom;1. State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;2. Department of Chemistry, Analytical and Testing Center, Capital Normal University, Beijing 100048, China;1. Key Laboratory of Beijing on Regional Air Pollution Control, Beijing University of Technology, Beijing 100124, China;2. Environmental Impact Assessment Research Centre, Environmental Development Centre of Ministry of Environmental Protection, Beijing 100029, China;3. Environmental Meteorological Center of China Meteorological Administration, Beijing 100081, China;1. Policy Simulation Laboratory, Zhejiang University, Hangzhou, 310058, PR China;2. Department of Land Management, Zhejiang University, Hangzhou, 310058, PR China;3. Louis Bolk Institute, Hoofdstraat 24, 3972 LA, Driebergen, The Netherlands;4. VU Amsterdam, De Boelelaan 1091, 1081 HV, Amsterdam, The Netherlands;5. NERC Centre for Ecology & Hydrology, Bush Estate, Penicuik, Midlothian, EH26 0QB, United Kingdom;6. University of Exeter Medical School, Knowledge Spa, Truro, TR1 3HD, United Kingdom;7. Deparment of Global Ecology, Carnegie Institution for Science, Stanford, 94305, CA, USA;8. Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, Nanjing, 210023, PR China;9. College of Life Sciences, Zhejiang University, Hangzhou, 310058, PR China;1. State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;2. CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning 110164, China;3. National Climate Center, China Meteorological Administration, Beijing 100081, China;4. John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, United States;5. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;6. Department of Chemistry, Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, 560 Oval Drive, West Lafayette, IN 47907, United States |
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| Abstract: | Regional simulations of sulfate, nitrate and ammonium aerosols were performed by a nested application of the online-coupled three-dimensional Eulerian model system COSMO-MUSCAT. This was done in a domain covering the northern part of Germany and surrounding regions for the full month of May and a 6-week period in August/September 2006 with the primary focus on secondary inorganic aerosol levels caused by ammonia emissions from domesticated animals and agricultural operations.The results show that in situations with westerly winds ammonium nitrate dominates with concentrations of about 5–10 μg m?3 whereas the ammonium sulfate concentrations are about 5 μg m?3. In situations with winds mainly from the East characterized by warmer and dryer air the ammonium sulfate concentrations have their maximum at about 10 μg m?3 whereas at the same time no ammonium nitrate is present.A reduction of agricultural NH3 emissions by 50% in a regional scale reduces the ammonium nitrate concentrations to a maximum of 30%, while the ammonium sulfate concentrations are unchanged. The reduction of NH3 emissions in a more limited area (here in the Federal state of Germany Niedersachsen) does have no noticeable effect neither on ammonium sulfate nor on ammonium nitrate. |
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