Detlef Mueller¹, Boyan Tatarov², Matthias Tesche^2,3, Sung-Kyun Shin^2,4 and Youngmin Noh⁵, (1)University of Hertfordshire, School of Physics, Astronomy and Mathematics, Hatfield, AL10, United Kingdom, (2)University of Hertfordshire, School of Physics, Astronomy and Mathematics, Hatfield, United Kingdom, (3)University of Leipzig, Leipzig, Germany, (4)Seoul Institute of Technology, Department of Atmospheric Particulate Matter Research, Seoul, South Korea, (5)Pukyoung National University, Busan, South Korea