Liya E. Yu is an Associate Professor at the Department of Civil & Environmental Engineering, National University of Singapore (NUS), Singapore. Her research group focuses on the characterization of physicochemical properties of airborne pollutants in warm and humid tropical environments. Concerted endeavour is given to better understand the evolution and impacts of volatile organic compounds and fine aerosols on urban air quality by integrating laboratory fundamental studies with field observations. Special effort is devoted to characterize how transported peat-forest fire smoke in the Maritime Continent affects receptor urban environment in Southeast Asia. Her group also investigates potential health impacts of inhaled nano-sized aerosols and furnishes multi-disciplinary studies with the expertise in assessing the effects of emerging anthropogenic activities (e.g., unique treatments of plastic wastes) on atmospheric environment. She has served on editorial boards and editorial advisory boards of peer-reviewed scientific journals. She is a member of the scientific steering committee of International Global Atmospheric Chemistry (IGAC) and one of the co-chairs of the working group of Monsoon Asian and Oceania Networking Group (IGAC-MANGO).