Please use this identifier to cite or link to this item: https://oa.tib.eu/renate/jspui/handle/123456789/6976
Title: Decreasing trends of particle number and black carbon mass concentrations at 16 observational sites in Germany from 2009 to 2018
Authors: Sun, JiaBirmili, WolframHermann, MarkusTuch, ThomasWeinhold, KayMerkel, MaikRasch, FabianMüller, ThomasSchladitz, AlexanderBastian, SusanneLöschau, GunterCyrys, JosefGu, JianweiFlentje, HaraldBriel, BjörnAsbach, ChristophKaminski, HeinzRies, LudwigSohmer, RalfGerwig, HolgerWirtz, KlausMeinhardt, FrankSchwerin, AndreasBath, OlafMa, NanWiedensohler, Alfred
Publishers Version: https://doi.org/10.5194/acp-20-7049-2020
Issue Date: 2020
Published in: Atmospheric chemistry and physics 20 (2020), Nr. 11
Publisher: Katlenburg-Lindau : EGU
Abstract: Anthropogenic emissions are dominant contributors to air pollution. Consequently, mitigation policies have been attempted since the 1990s in Europe to reduce pollution by anthropogenic emissions. To evaluate the effectiveness of these mitigation policies, the German Ultrafine Aerosol Network (GUAN) was established in 2008, focusing on black carbon (BC) and sub-micrometre aerosol particles. In this study, long-term trends of atmospheric particle number concentrations (PNCs) and equivalent BC (eBC) mass concentration over a 10-year period (2009-2018) were determined for 16 GUAN sites ranging from roadside to high Alpine environments. Overall, statistically significant decreasing trends are found for most of these parameters and environments in Germany. The annual relative slope of eBC mass concentration varies between-13.1% and-1.7% per year. The slopes of the PNCs vary from-17.2% to-1.7 %,-7.8% to-1.1 %, and-11.1% to-1.2% per year for 10-30, 30-200, and 200-800 nm size ranges, respectively. The reductions in various anthropogenic emissions are found to be the dominant factors responsible for the decreasing trends of eBC mass concentration and PNCs. The diurnal and seasonal variations in the trends clearly show the effects of the mitigation policies for road transport and residential emissions. The influences of other factors such as air masses, precipitation, and temperature were also examined and found to be less important or negligible. This study proves that a combination of emission mitigation policies can effectively improve the air quality on large spatial scales. It also suggests that a long-term aerosol measurement network at multi-type sites is an efficient and necessary tool for evaluating emission mitigation policies. © 2020 Author(s).
Keywords: aerosol; air quality; annual variation; anthropogenic source; atmospheric pollution; black carbon; concentration (composition); particulate matter; trend analysis; Germany
DDC: 550
License: CC BY 4.0 Unported
Link to License: https://creativecommons.org/licenses/by/4.0/
Appears in Collections:Geowissenschaften

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Sun, Jia, Wolfram Birmili, Markus Hermann, Thomas Tuch, Kay Weinhold, Maik Merkel, Fabian Rasch, Thomas Müller, Alexander Schladitz, Susanne Bastian, Gunter Löschau, Josef Cyrys, Jianwei Gu, Harald Flentje, Björn Briel, Christoph Asbach, Heinz Kaminski, Ludwig Ries, Ralf Sohmer, Holger Gerwig, Klaus Wirtz, Frank Meinhardt, Andreas Schwerin, Olaf Bath, Nan Ma and Alfred Wiedensohler, 2020. Decreasing trends of particle number and black carbon mass concentrations at 16 observational sites in Germany from 2009 to 2018. 2020. Katlenburg-Lindau : EGU
Sun J, Birmili W, Hermann M, et al. Decreasing trends of particle number and black carbon mass concentrations at 16 observational sites in Germany from 2009 to 2018. 2020; 20. doi:https://doi.org/10.5194/acp-20-7049-2020
Sun J, Birmili W, Hermann M, Tuch T, Weinhold K, Merkel M, Rasch F, Müller T, Schladitz A, Bastian S, Löschau G, Cyrys J, Gu J, Flentje H, Briel B, Asbach C, Kaminski H, Ries L, Sohmer R, Gerwig H, Wirtz K, Meinhardt F, Schwerin A, Bath O, Ma N, Wiedensohler A (2020) Decreasing trends of particle number and black carbon mass concentrations at 16 observational sites in Germany from 2009 to 2018. 20
Sun, J., Birmili, W., Hermann, M., Tuch, T., Weinhold, K., Merkel, M., Rasch, F., Müller, T., Schladitz, A., Bastian, S., Löschau, G., Cyrys, J., Gu, J., Flentje, H., Briel, B., Asbach, C., Kaminski, H., Ries, L., Sohmer, R., Gerwig, H., Wirtz, K., Meinhardt, F., Schwerin, A., Bath, O., Ma, N. & Wiedensohler, A. Decreasing trends of particle number and black carbon mass concentrations at 16 observational sites in Germany from 2009 to 2018. vol. 20 (2020).
J. Sun, W. Birmili, M. Hermann, T. Tuch, K. Weinhold, M. Merkel, F. Rasch, T. Müller, A. Schladitz, S. Bastian, G. Löschau, J. Cyrys, J. Gu, H. Flentje, B. Briel, C. Asbach, H. Kaminski, L. Ries, R. Sohmer, H. Gerwig, K. Wirtz, F. Meinhardt, A. Schwerin, O. Bath, N. Ma, A. Wiedensohler, Decreasing trends of particle number and black carbon mass concentrations at 16 observational sites in Germany from 2009 to 2018. 20 (2020), doi:https://doi.org/10.5194/acp-20-7049-2020.
J. Sun, W. Birmili, M. Hermann, T. Tuch, K. Weinhold, M. Merkel, F. Rasch, T. Müller, A. Schladitz, S. Bastian, G. Löschau, J. Cyrys, J. Gu, H. Flentje, B. Briel, C. Asbach, H. Kaminski, L. Ries, R. Sohmer, H. Gerwig, K. Wirtz, F. Meinhardt, A. Schwerin, O. Bath, N. Ma and A. Wiedensohler, 2020, 20.
J. Sun et al., “Decreasing trends of particle number and black carbon mass concentrations at 16 observational sites in Germany from 2009 to 2018,” vol. 20, no. 11. Katlenburg-Lindau : EGU, 2020, doi: https://doi.org/10.5194/acp-20-7049-2020.


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