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Andreas Hofzumahaus
Researcher at Forschungszentrum Jülich
Publications - 119
Citations - 9037
Andreas Hofzumahaus is an academic researcher from Forschungszentrum Jülich. The author has contributed to research in topics: Radical & Isoprene. The author has an hindex of 50, co-authored 112 publications receiving 7768 citations. Previous affiliations of Andreas Hofzumahaus include Ruhr University Bochum.
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Journal ArticleDOI
Atmospheric composition change – global and regional air quality
Paul S. Monks,Claire Granier,Claire Granier,Claire Granier,Sandro Fuzzi,Andreas Stohl,Martin L. Williams,Hajime Akimoto,Markus Amann,Alexander Baklanov,Urs Baltensperger,Isabelle Bey,Nicola J. Blake,Robert S. Blake,Kenneth S. Carslaw,Owen R. Cooper,Owen R. Cooper,F. J. Dentener,David Fowler,E. Fragkou,Gregory J. Frost,Gregory J. Frost,S. Generoso,Paul Ginoux,Volker Grewe,Alex Guenther,Hans-Christen Hansson,Stephan Henne,Jens Hjorth,Andreas Hofzumahaus,Heidi Huntrieser,Ivar S. A. Isaksen,Michael E. Jenkin,Jan Kaiser,Maria Kanakidou,Zbigniew Klimont,Markku Kulmala,Paolo Laj,Paolo Laj,Mark Lawrence,James D. Lee,Catherine Liousse,Michela Maione,Gordon McFiggans,A. Metzger,Aude Mieville,Nicolas Moussiopoulos,John J. Orlando,Colin D. O'Dowd,Paul I. Palmer,D. D. Parrish,Andreas Petzold,Ulrich Platt,Ulrich Pöschl,André S. H. Prévôt,Claire E. Reeves,Stefan Reimann,Yinon Rudich,Karine Sellegri,Rainer Steinbrecher,David Simpson,David Simpson,H.M. ten Brink,J. Theloke,G. R. van der Werf,Robert Vautard,Vigdis Vestreng,Ch. Vlachokostas,R. von Glasow +68 more
TL;DR: A review of the state of scientific understanding in relation to global and regional air quality is outlined in this article, in terms of emissions, processing and transport of trace gases and aerosols.
Journal ArticleDOI
Amplified trace gas removal in the troposphere.
Andreas Hofzumahaus,Franz Rohrer,Keding Lu,Keding Lu,Birger Bohn,Theo Brauers,Chih-Chung Chang,Hendrik Fuchs,Frank Holland,Kazuyuki Kita,Yutaka Kondo,Xin Li,Xin Li,Shengrong Lou,Shengrong Lou,Min Shao,Limin Zeng,Andreas Wahner,Yuanhang Zhang +18 more
TL;DR: Concentrations of OH were three to five times greater than expected, and the existence of a pathway for the regeneration of OH independent of NO is proposed, which amplifies the degradation of pollutants without producing ozone.
Journal ArticleDOI
Rapid aerosol particle growth and increase of cloud condensation nucleus activity by secondary aerosol formation and condensation: A case study for regional air pollution in northeastern China
Alfred Wiedensohler,Yafang Cheng,Andreas Nowak,Birgit Wehner,Peggy Achtert,M. Berghof,Wolfram Birmili,Zhijun Wu,Min Hu,Tong Zhu,Nobuyuki Takegawa,Kazuyuki Kita,Yoshiko Kondo,S. Lou,S. Lou,Andreas Hofzumahaus,Frank Holland,Andreas Wahner,Sachin S. Gunthe,Diana Rose,Hang Su,Ulrich Pöschl +21 more
TL;DR: In this article, a new particle formation event in a highly polluted air mass at a regional site south of the megacity Beijing and its impact on the abundance and properties of cloud condensation nuclei (CCN) was investigated.
Rapid aerosol particle growth and increase of cloud condensation nucleus activity by secondary aerosol formation and condensation: A case study for regional air pollution in northeastern China
Alfred Wiedensohler,Yafang Cheng,Andreas Nowak,Birgit Wehner,Peggy Achtert,M. Berghof,Wolfram Birmili,Zhijun Wu,Min Hu,Tong Zhu,Nobuyuki Takegawa,Kazuyuki Kita,Yoshiko Kondo,S. Lou,S. Lou,Andreas Hofzumahaus,Frank Holland,Andreas Wahner,Sachin S. Gunthe,Diana Rose,Hang Su,Ulrich Pöschl +21 more
TL;DR: In this paper, a new particle formation event in a highly polluted air mass at a regional site south of the megacity Beijing and its impact on the abundance and properties of cloud condensation nuclei (CCN) was investigated.
Journal ArticleDOI
Daytime formation of nitrous acid: A major source of OH radicals in a forest
Jörg Kleffmann,Traian Gavriloaiei,Andreas Hofzumahaus,Frank Holland,Ralf Koppmann,L. Rupp,E. Schlosser,M. Siese,Andreas Wahner +8 more
TL;DR: In this paper, the ECHO field campaign in a mixed deciduous forest near Julich, West Germany, in summer 2003 showed clear evidence for a large, yet unexplained, daytime source of HONO (∼500 pptv/h).