Source Apportionment
Developing molecular marker-based methods to quantify contributions of traffic and other anthropogenic sources to particulate matter, accounting for atmospheric oxidation and gas-particle partitioning.
Learn more →14+
Peer-Reviewed Papers
10+
Years of Research
6
Research Projects
7
Conference Talks
Research Overview
My research applies field measurements, laboratory experiments, and data analytics to study the connections between emissions, air quality, and health effects. Through collaborative science, I aim to provide the evidence needed to inform air quality policy and protect public health amid urbanization, aging societies, and a changing climate.
Traffic Emissions
Resolving vehicle-type-specific contributions from diesel, gasoline, and LPG fleets, and characterizing non-exhaust emissions from brakes, tires, and road dust.
Learn more →Low-Cost Sensors
Evaluating and deploying sensor networks with machine learning calibration to achieve high spatiotemporal resolution air quality monitoring in urban environments.
Learn more →Health Risk Assessment
Tracking long-term trends of toxic air pollutants and identifying shifting source contributions to inhalation cancer risks in Hong Kong over two decades.
Learn more →Analytical Techniques
Developing instruments to measure total reactive organic carbon in the gas phase and online aerosol carbon and nitrogen for atmospheric applications in the Greater Bay Area.
Learn more →Data Analytics
Integrating field measurements, receptor modeling, and statistical methods to constrain emission factors and resolve intra-city variability of air pollutants.
Learn more →Recent Publications
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2026
Jeong, C.-H., Wong, Y. K., Trieu, N., & Evans, G. J. Urban contrasts in traffic-related PM2.5 resolved through high-time-resolution analysis of exhaust and non-exhaust emissions. Atmospheric Environment, 382, 122178. doi:10.1016/j.atmosenv.2026.122178
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2026
Wong, Y. K., Liu, K. M., Yeung, C., Leung, K. K. M., & Yu, J. Z. Source apportionment of fine and coarse particulate matter in Hong Kong and its implications to PM10 air quality management. Atmospheric Environment, 368, 121763. doi:10.1016/j.atmosenv.2025.121763
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2025
Edwards, T. D., Wong, Y. K., Jeong, C.-H., Wang, J. M., Su, Y., & Evans, G. J. Comparison of methods for resolving the contributions of local emissions to measured concentrations. Atmospheric Measurement Techniques, 18, 2201–2240. doi:10.5194/amt-18-2201-2025