Regional variability in black carbon and carbon monoxide ratio from long-term observations over East Asia: Assessment of representativeness for BC and CO emission inventories

Yongjoo Choi1, Yugo Kanaya1, Seung Myung Park2, Atsushi Matsuki3, Yasuhiro Sadanaga4, Sang-Woo Kim5, Itsushi Uno6, Xiaole Pan7, Meehye Lee8, Hyunjae Kim2 and Dong Hee Jung9, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)NIER National Institute of Environmental Research, Incheon, Korea, Republic of (South), (3)Kanazawa University, Institute of Nature and Environment Technology,, Kanazawa, Japan, (4)Osaka Prefecture University, Sakai, Japan, (5)Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea, (6)Kyushu Univ, Fukuoka, Japan, (7)Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, (8)Department of Earth and Environmental Science, Korea University, Seoul, South Korea, (9)NIER National Institute of Environmental Research, Division of Climate & Air Quality Research, Incheon, South Korea