PUBLICATIONS

Characterization of particulate matter at Mt. Gwanak (at 632 m) and vertical mixing impacts on haze in Seoul during winter

Sujin Kwon , Qihua Hu , Jaewon Seo , Soyoung Park , Jihye Moon , Jaeuk Kim ,Sungjin Park ,Yoojin Park , Hwajin Kim

2025

Science of The Total Environment

Is replacing missing values of PM2.5 constituents with estimates using machine learning better for source apportionment than exclusion or median replacement?

Youngkwon Kim, Seung-Muk Yi, Jongbae Heo, Hwajin Kim, Woojoo Lee, Ho Kim, Philip K. Hopke, Young Su Lee, Hye-Jung Shin, Jungmin Park, Myungsoo Yoo, Kwonho Jeon, Jieun Park

2024.05

Environmental Pollution

Understanding the Driving Forces of Summer PM1 Composition in Seoul, Korea, with Explainable Machine Learning

Qihua Hu, Jihye Moon, Hwajin Kim

2024.07.10

ACS ES&T Air

Effects of chemical composition of ambient PM2.5 measured in Seoul on potential health risks and generation of reactive oxygen species

Hwajin Kim, Eun Ha Park

2024.5

Environmental Pollution

Source apportionment of soot particles and aqueous-phase processing of black carbon coatings in an urban environment

Ryan N. Farley, Sonya Collier, Christopher D. Cappa, Leah R. Williams, Timothy B. Onasch, Lynn M. Russell, Hwajin Kim, and Qi Zhang

2023.12

Atmospheric Chemistry and Physics

Deposition of secondary organic aerosol in human lung model: Effect of photochemically aged aerosol on human respiratory system

Hyeon-Ju Oh, Yanfang Chen, Hwajin Kim

2023.10

Ecotoxicology and Environmental Safety

Volatile Oxidation Products and Secondary Organosiloxane Aerosol from D5 + OH at Varying OH exposures

Hyun Gu Kang, Yanfang Chen, Yoojin Park, Thomas Berkemeier, and Hwajin Kim

2023.11

Atmospheric Chemistry and Physics

Significant Reductions in Secondary Aerosols after the Three-Year Action Plan in Beijing Summer

Yan Li, Lu Lei, Jiaxing Sun, Yueqi Gao, Peng Wang, Siyu Wang, Zhaolei Zhang, Aodong Du, Zhijie Li, Zifa Wang, Jin Young Kim, Hwajin Kim, Hongliang Zhang, and Yele Sun

2023.10

Environmental Science & Technology

Coarse particulate matter air quality in East Asia: implications for fine particulate nitrate

Shixian Zhai, Daniel J. Jacob, Drew C. Pendergrass, Nadia K. Colombi, Viral Shah, Laura Hyesung Yang, Qiang Zhang, Shuxiao Wang, Hwajin Kim, Yele Sun, Jin-Soo Choi, Jin-Soo Park, Gan Luo, Fangqun Yu, Jung-Hun Woo, Younha Kim, Jack E. Dibb, Taehyoung Lee, Jin-Seok Han, Bruce E. Anderson, Ke Li, and Hong Liao Abstract

2023.4

Atmospheric Chemistry and Physics

Real time measurements of the secondary organic aerosol formation and aging from ambient air using an oxidation flow reactor in seoul during winter

Yoojin Park, Hwajin Kim

2023.6

Environmental Pollution