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AEROSOL SCIENCE

&

AIR POLLUTION

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BIOGRAPHY

Professor Chan obtained BSc in Chemical Engineering from the University of Texas at Austin in 1986 and PhD in Chemical Engineering from the California Institute of Technology in 1992. He is currently Dean of the Division of Physical Science and Engineering at the King Abdullah University of Science and Technology (KAUST) in Saudi Arabia.  Before that, he was at the Hong Kong University of Science and Technology and then City University of Hong Kong.

 

Professor Chan has over 30 years of research experience in air pollution and aerosol science.  He specializes in aerosol water uptake and phase transformation, gas-aerosol interactions, the formation of secondary aerosols in the atmosphere, and laser spectroscopy and mass spectrometry of aerosols in field and laboratory studies.

 

Professor Chan received the Haagen Smit Award of Atmospheric Environment in 2015, Second Prize of the State Natural Science Award in 2010, and First Prize of the Natural Science Award in 2007. He was the first winner of the Asian Young Aerosol Scientists Award.  He was Editor-in-Chief of Atmospheric Environment in 2008-2019.

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Best Review Paper Award 2022 from the journal RSC Environmental Sciences: Atmosphere
 

"Particulate Photolysis in the Atmosphere"
Masao Gen, Zhancong Liang, Ruife
ng Zhang, Beatrix Rosette Go Mabato, and Chak K. Chan

Atmospheric particulate matter or aerosol particles, directly and indirectly, impact climate, regional air quality, and human health. The atmosphere is a giant and strongly oxidizing chemical reactor, and the atmospheric oxidizing capacity is closely associated with the chemical evolution of aerosol particles. Inorganic nitrate photolysis can contribute to the atmospheric oxidizing capacity by generating strong oxidants such as hydroxyl radical. Nitrate photolysis in aerosol particles is accelerated by many orders of magnitude relative to bulk solution reactions, but factors and mechanisms affecting particulate nitrate photolysis remain controversial. As a result, the impact of particulate nitrate photolysis on the atmospheric oxidizing capacity is still uncertain. We review the current status of knowledge about particulate nitrate photolysis in the atmosphere. 

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BEST PAPER AWARD IN

ENVIRONMENTAL SCIENCE AND TECHNOLOGY LETTERS IN 2019

Heterogeneous SO2 Oxidation in Sulfate Formation by Photolysis of Particulate Nitrate

Masao Gen, Ruifeng Zhang, Dan Dan Huang, Yongjie Li, and Chak K. Chan

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We are very honored to receive this award and are grateful to the ESTL editors.  We also like to thank the reviewers of the paper who have given us many insightful comments and suggestions.

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NEWS AND UPDATES

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11th International Aerosol Conference - IAC 2022

14 September 2022

It is my honor to be a plenary speaker at the International Aerosol Conference in Athens, Greece. I gave a talk on "Single-particle Raman spectroscopy in studying multiphase reactions of atmospheric particulates" on Sept 6. A big thank you to the organizers for the invitation and to everyone who attended the lecture and the inspiring questions.

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SELECTED NEW PUBLICATIONS

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SULFATE FORMATION VIA AEROSOL PHASE SO2 OXIDATION BY MODEL BIOMASS BURNING PHOTOSENSITIZERS:  3,4-DIMETHOXYBENZALDEHYDE, VANILLIN AND SYRINGALDEHYDE.

Atmospheric Chemistry and Physics (2023)

Liyuan Zhou*, Zhancong Liang, Beatrix Rosette Go Mabato, Rosemarie Ann Infante Cuevas, Rongzhi Tang, Mei Li, Chunlei Cheng, and Chak K. Chan* 

SULFATE FORMATION BY PHOTOSENSITIZATION IN MIXED INCENSE BURNING–SODIUM CHLORIDE PARTICLES: EFFECTS OF RH, LIGHT INTENSITY, AND AEROSOL AGING

 

Environmental Science & Technology (2023)

 

Rongzhi Tang, Ruifeng Zhang, Jialiang Ma, Kai Song, Beatrix Rosette Go Mabato, Rosemarie Ann Infante Cuevas, Liyuan Zhou, Zhancong Liang, Alexander L. Vogel, Song Guo, and Chak K. Chan*

SIMULTANEOUS FORMATION OF SULFATE AND NITRATE VIA CO-UPTAKE OF SO2 AND NO2 BY AQUEOUS NACL DROPLETS: COMBINED EFFECT OF NITRATE PHOTOLYSIS AND CHLORINE CHEMISTRY

Atmospheric Chemistry and Physics (2023)

Ruifeng Zhang, Chak K. Chan*

DISTINCT PHOTOCHEMISTRY IN GLYCINE PARTICLES MIXED WITH DIFFERENT ATMOSPHERIC NITRATE SALTS

Atmospheric Chemistry and Physics (2023) 

Zhancong Liang, Zhihao Cheng, Ruifeng Zhang, Yiming Qin, Chak K. Chan*

NEGLIGIBLE INCREASE IN INDOOR ENDOTOXIN ACTIVITY BY 222 NM FAR-UVC ILLUMINATION ON BIOAEROSOLS

Environmental Science: Atmospheres (2023)  

Zhancong Liang, Tim Yiu Cheung, Wing Lam Chan, Chee Kent Lim, Alvin C.K. Lai, Patrick K.H. Lee, Chak K. Chan*

SECONDARY AEROSOL FORMATION IN INCENSE BURNING PARTICLES BY O3 AND OH OXIDATION VIA SINGLE PARTICLE MIXING STATE ANALYSIS


Science of The Total Environment (2023)

Zhancong Liang, Liyuan Zhou, Xinyue Li, Rosemarie Ann Infante Cuevas, Rongzhi Tang, Mei Li, Chunlei Cheng, Yangxi Chu, Patrick K.H. Lee, Alvin C.K. Lai, Chak K. Chan*

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COMPARISON OF AQUEOUS SECONDARY ORGANIC AEROSOL (AQSOA) PRODUCT DISTRIBUTIONS FROM GUAIACOL OXIDATION BY NON-PHENOLIC AND PHENOLIC METHOXYBENZALDEHYDES AS PHOTOSENSITIZERS IN THE ABSENCE AND PRESENCE OF AMMONIUM NITRATE     

 

Atmospheric Chemistry and Physics (2023)

Beatrix Rosette Go Mabato, Yong Jie Li, Dan Dan Huang, YalinWang, and Chak K. Chan*
 

SULFATE FORMATION IN INCENSE BURNING PARTICLES: A SINGLE-PARTICLE MASS SPECTROMETRIC STUDY

 

Environmental Science and Technology Letters (2022)

 

Zhancong Liang, Liyuan Zhou, Rosemarie Ann Infante Cuevas, Xinyue Li, Chunlei Cheng, Mei Li*, Rongzhi Tang, Ruifeng Zhang, Patrick K. H. Lee, Alvin C. K. Lai, and Chak K. Chan*

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THE OXIDATIVE POTENTIAL OF FRESH AND AGED ELEMENTAL CARBON-CONTAINING AIRBORNE PARTICLES: A REVIEW

 

Environmental Science: Processes and Impacts (2022)

 

Yangyang Liu, Chak K. Chan

ASSESSING THE NONLINEAR EFFECT OF ATMOSPHERIC VARIABLES ON PRIMARY AND OXYGENATED ORGANIC AEROSOL CONCENTRATION USING MACHINE LEARNING

ACS Earth and Space Chemistry (2022)

Yiming Qin,* Jianhuai Ye, Paul Ohno, Pengfei Liu, Junfeng Wang, Pingqing Fu, Liyuan Zhou, Yong Jie Li, Scot T. Martin, and Chak K. Chan*
 

 

COMPETITIVE UPTAKE OF DIMETHYLAMINE AND TRIMETHYLAMINE AGAINST AMMONIA ON ACIDIC PARTICLES IN MARINE ATMOSPHERES 

Environmental Science and Technology (2022)

Dihui Chen, Xiaohong Yao,* Chak Keung Chan,* Xiaomeng Tian, Yangxi Chu, Simon Leslie Clegg, Yanjie Shen, Yang Gao, and Huiwang Gao
 

 

REAL-TIME CHEMICAL CHARACTERIZATION OF SINGLE AMBIENT PARTICLES AT A PORT CITY IN CHINESE DOMESTIC EMISSION CONTROL AREA – IMPACTS OF SHIP EMISSIONS ON URBAN AIR QUALITY

Science of Total Environment (2022) 

 

Liyuan Zhou, Mei Li, Chunlei Cheng, Zhen Zhou, Huiqing Nian, Rongzhi Tang, Chak K. Chan*

PARTICULATE NITRATE PHOTOLYSIS IN THE ATMOSPHERE

 

Environmental Science: Atmospheres (2022)

 

Masao Gen, Zhancong Liang, Ruifeng Zhang, Beatrix Rosette Go Mabato, Chak K Chan*
 

SINGLE-PARTICLE RAMAN SPECTROSCOPY FOR STUDYING PHYSICAL AND CHEMICAL PROCESSES OF ATMOSPHERIC PARTICLES

Atmospheric Chemistry and Physics (2022). 

 

Zhancong Liang, Yangxi Chu, Masao Gen, Chak K. Chan.*
 

TECHNICAL NOTE: DISPERSION OF COOKING-GENERATED AEROSOLS FROM AN URBAN STREET CANYON

 

Atmospheric Chemistry and Physics (2022)

 

Shang Gao, Mona Kurppa, Chak K. Chan*, and Keith Ngan*
 

INACTIVATION OF ESCHERICHIA COLI IN DROPLETS AT DIFFERENT AMBIENT RELATIVE HUMIDITY: EFFECTS OF PHASE TRANSITION, SOLUTE AND CELL CONCENTRATIONS

Atmospheric Environment (2022)

 

Zhancong Liang, Wing Lam Chan, Xiaomeng Tian, Patrick K.H. Lee*, Chak K. Chan*
 

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AQUEOUS SECONDARY ORGANIC AEROSOL FORMATION FROM THE DIRECT PHOTOSENSITIZED OXIDATION OF VANILLIN IN THE ABSENCE AND PRESENCE OF AMMONIUM NITRATE

 

Atmospheric Chemistry and Physics (2022)

 

Beatrix Rosette Go Mabato, Yan Lyu, Yan Ji, Yong Jie Li, Dan Dan Huang, Xue Li, Theodora Nah, Chun Ho Lam, and Chak K. Chan*

REACTIVE UPTAKE OF MONOETHANOLAMINE BY SULFURIC ACID PARTICLES AND HYGROSCOPICITY OF MONOETHANOLAMINIUM SALTS

Environmental Science and Technology Letters (2021)

Xiaomeng Tian, Yangxi Chu and Chak K. Chan* 
 

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PHOTOCHEMICAL REACTIONS OF GLYOXAL DURING PARTICULATE AMMONIUM NITRATE PHOTOLYSIS: BROWN CARBON FORMATION, ENHANCED GLYOXAL DECAY, AND ORGANIC PHASE FORMATION

Environmental Science & Technology

Ruifeng Zhang, Masao Gen, Zhancong Liang, Yong Jie Li, Chak K. Chan

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NITRITE/NITROUS ACID GENERATION FROM THE REACTION OF NITRATE AND FE(II) PROMOTED BY PHOTOLYSIS OF IRON–ORGANIC COMPLEXES

Environmental Science & Technology (2021)

Masao Gen, Ruifeng Zhang, and Chak Chan

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EMISSIONS AND SECONDARY FORMATION OF AIR POLLUTANTS FROM MODERN HEAVY-DUTY TRUCKS IN REAL-WORLD TRAFFIC—CHEMICAL CHARACTERISTICS USING ON-LINE MASS SPECTROMETRY

Environment science & technology (2021)

Liyuan Zhou, Christian M. Salvador, Michael Priestley, Mattias Hallquist, Qianyun Liu, Chak K. Chan, and Åsa M. Hallquist

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PRIMARY EMISSIONS AND SECONDARY PRODUCTION OF ORGANIC AEROSOLS FROM HEATED ANIMAL FATS

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NITRATE PHOTOLYSIS IN MIXED SUCROSE–NITRATE–SULFATE PARTICLES AT DIFFERENT RELATIVE HUMIDITIES

The Journal of Physical Chemistry A

Zhancong Liang, Ruifeng Zhang, Masao Gen, Yangxi Chu, Chak K. Chan

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PRODUCTION OF FORMATE VIA OXIDATION OF GLYOXAL PROMOTED BY PARTICULATE NITRATE PHOTOLYSIS

Environmental Science & Technology

Ruifeng Zhang, Masao Gen, Tzung-May Fu, Chak Keung Chan

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CONCLUDING REMARKS: FARADAY DISCUSSION ON AIR QUALITY IN MEGACITIES

Faraday Discussions

Masao Gen, Liyuan Zhou, Ruifeng Zhang and Chak K. Chan

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MULTIPHASE PHOTOCHEMISTRY OF IRON-CHLORIDE CONTAINING PARTICLES AS A
SOURCE OF AQUEOUS CHLORINE RADICALS AND ITS EFFECT ON SULFATE PRODUCTION

Environmental Science & Technology

Masao Gen, Ruifeng Zhang, Yong Jie Li, and Chak Keung Chan

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ENHANCED SULFATE PRODUCTION BY NITRATE PHOTOLYSIS IN THE PRESENCE OF HALIDE IONS IN ATMOSPHERIC PARTICLES

Environmental Science and Technology

Ruifeng ZHANG et al. (2020)

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PHD STUDENTS

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BEATRIX ROSETTE GO MABATO

PhD Student in Energy and Environment

MSc and BSc in Chemistry, University of Santo Tomas (Manila, PH)


Set currently focuses on the field of aerosol chemistry and air pollution. Among Set’s research interests are aerosol uptake experiments, brown carbon formation, and atmospheric aging processes.

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ASSISTANT

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JO JO

Emotional Support Specialist

Joined in April 2019

7-8 years old

Specializing in emotional support

Adopted from House of Joy and Mercy (阿棍屋), Yuen Long, Hong Kong

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PREVIOUS MEMBERS

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DR. QIANYUN (CHERRIE) LIU

PhD in Environmental Science and Management, Hong Kong University of Science and Technology

Postdoctoral Fellow at CityU Hong Kong Shenzhen Research Institute (2019-2021)

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