Urban air pollution in Beijing, China, had no effect on ice nucleating particle concentrations

Heike Wex1, Jie Chen2, Stefanie Augustin-Bauditz1, Sarah Grawe1, Xiangyu Pei3 and Zhijun Wu4, (1)Leibniz Institute for Tropospheric Research, Experimental Aerosol and Cloud Microphysics, Leipzig, Germany, (2)Peking University, State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Beijing, China, (3)University of Gothenburg, Department of Chemistry and Molecular Biology, Gothenburg, Sweden, (4)Peking University, Beijing, China