Associate Professor,

Dept. of Earth & Environmental Sciences, Sejong University, Seoul, Korea

Assistant Professor,

Dept. of Earth Sciences, Sejong University, Seoul, Korea

Assistant Professor,

College of Life Sciences and Natural Resources, Sang Ji University,
Won Ju, Korea

Visiting Scientist,

Institute of Environmental Sciences, Korea National University of Education, Chung Won, Korea

Research Associate,

Atmospheric Geochemistry Group, Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA

Postdoctoral Fellow,

Dept. of Marine Science, University of South Florida, St. Petersburg, FL, USA