Nature of ammonium containing particles in an urban site of Germany |
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| Institution: | 1. School of Chemistry and Chemical Engineering, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, China;2. School of Chemistry and Chemical Technology, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China;3. Green Catalysis Center and College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China;1. Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, 620108, Russia;2. Ural Federal University, Ekaterinburg, 620002, Russia;3. Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan;4. WPI-Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan;1. Núcleo de Espectroscopia e Estrutura Molecular, Departamento de Química, Universidade Federal de Juiz de Fora, Campus Universitário s/n, Juiz de Fora, MG, 36036-900, Brazil;2. School of Life Sciences, University of Bradford, Bradford, BD7 1DP, West Yorkshire, UK |
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| Abstract: | Investigations of chemical properties of atmospheric aerosol particles were performed. Application of the spot techniques to individual ammonium containing particles in the urban site of Karlsruhe revealed the following results: (NH4)2SO4 particles dominate the sub-μm size range, only a few particles of (NH4)3H(SO4)2 or NH4HSO4 were detected. Mixed sulfates and nitrates of ammonium and some particles of calcium/ammonium salts were found in the μm-size range. Reaction spots containing particles in the characteristic form of alkali nitrate were found only during a smog day in January. |
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