Institute of Meteorology and Climate Research, Karlsruhe Institute of
Technology, 76344 Eggenstein-Leopoldshafen, Germany
Institute of Applied Geosciences, Working Group for Environmental
Mineralogy and Environmental System Analysis, Karlsruhe Institute of
Technology, 76131 Karlsruhe, Germany
Institute of Meteorology and Climate Research, Karlsruhe Institute of
Technology, 76344 Eggenstein-Leopoldshafen, Germany
Institute of Applied Geosciences, Working Group for Environmental
Mineralogy and Environmental System Analysis, Karlsruhe Institute of
Technology, 76131 Karlsruhe, Germany
Jonas Bauer
Institute of Applied Geosciences, Working Group for Environmental
Mineralogy and Environmental System Analysis, Karlsruhe Institute of
Technology, 76131 Karlsruhe, Germany
Institute of Meteorology and Climate Research, Karlsruhe Institute of
Technology, 76344 Eggenstein-Leopoldshafen, Germany
Institute of Applied Geosciences, Working Group for Environmental
Mineralogy and Environmental System Analysis, Karlsruhe Institute of
Technology, 76131 Karlsruhe, Germany
Institute of Meteorology and Climate Research, Karlsruhe Institute of
Technology, 76344 Eggenstein-Leopoldshafen, Germany
Reiner Gebhardt
Institute of Geography and Geoecology, Karlsruhe Institute of
Technology, Reinhard-Baumeister-Platz 1, 76131 Karlsruhe, Germany
Thomas Leisner
Institute of Meteorology and Climate Research, Karlsruhe Institute of
Technology, 76344 Eggenstein-Leopoldshafen, Germany
Institute of Environmental Physics, Heidelberg University, 69120
Heidelberg, Germany
Stefan Norra
Institute of Applied Geosciences, Working Group for Environmental
Mineralogy and Environmental System Analysis, Karlsruhe Institute of
Technology, 76131 Karlsruhe, Germany
Institute of Environmental Sciences and Geography, Chair of Soil
Science and Geoecology, University of Potsdam, Karl-Liebknecht-Strasse 24/25, 14476 Potsdam, Germany
We studied brown carbon aerosol during typical summer and winter periods in downtown Karlsruhe in southwestern Germany. The chromophore and chemical composition of brown carbon was determined by excitation–emission spectroscopy and mass spectrometry. The chromophore types and sources were substantially different in winter and summer. Humic-like chromophores of different degrees of oxidation dominated and were associated with molecules of different molecular weight and nitrogen content.
We studied brown carbon aerosol during typical summer and winter periods in downtown Karlsruhe...
