Yik-Sze Lau
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View article: The coupling of a high-efficiency aerosol collector with electrospray ionisation–Orbitrap mass spectrometry as a novel tool for real-time chemical characterisation of fine and ultrafine particles
The coupling of a high-efficiency aerosol collector with electrospray ionisation–Orbitrap mass spectrometry as a novel tool for real-time chemical characterisation of fine and ultrafine particles Open
The chemical properties of aerosols in the atmosphere significantly influence their impact on the global climate forcing and human health. However, a real-time molecular-level characterisation of aerosols remains challenging due to the com…
View article: Unraveling secondary organic aerosol formation from isoprene and toluene mixture
Unraveling secondary organic aerosol formation from isoprene and toluene mixture Open
Interactions between anthropogenic and biogenic volatile organic compounds (AVOCs and BVOCs) widely exist in the atmosphere, but the resultant secondary organic aerosol (SOA) formation is still poorly understood. When the two commonly wide…
View article: The Coupling of a High-efficiency Aerosol Collector with Electrospray Ionisation/Orbitrap Mass Spectrometry as a novel tool for Real-time Chemical Characterisation of Fine and Ultrafine Particles
The Coupling of a High-efficiency Aerosol Collector with Electrospray Ionisation/Orbitrap Mass Spectrometry as a novel tool for Real-time Chemical Characterisation of Fine and Ultrafine Particles Open
The chemical properties of aerosols in the atmosphere significantly influence their impact on the global climate forcing and human health. However, a real-time molecular-level characterisation of aerosols remains challenging due to the com…
View article: Characterization of chemical components of fresh and aged aerosol from vehicle exhaust emissions in Hong Kong
Characterization of chemical components of fresh and aged aerosol from vehicle exhaust emissions in Hong Kong Open
The chemical properties of fresh and aged aerosol emitted during controlled vehicular exhaust emissions were characterized in the analysis. Pyrene (10417.1 ± 534.9 ng kg-1) is the most abundant of all analyzed compounds in total fresh emis…
View article: Toxicological effects of fresh and aged gasoline exhaust particles in Hong Kong
Toxicological effects of fresh and aged gasoline exhaust particles in Hong Kong Open
Exhaust emissions from gasoline vehicles are one of the major contributors to aerosol particles observed in urban areas. It is well-known that these tiny particles are associated with air pollution, climate forcing, and adverse health effe…
View article: Chemical Composition of Gas and Particle Phase Products of Toluene Photooxidation Reaction under High OH Exposure Condition
Chemical Composition of Gas and Particle Phase Products of Toluene Photooxidation Reaction under High OH Exposure Condition Open
In the current study, the photooxidation reaction of toluene (C7H8) was investigated in a Potential Aerosol Mass Oxidation Flow Reactor (PAM OFR). The hydroxyl radical (OH) exposure of toluene in the PAM OFR ranged from 0.4 to 1.4 × 1012 m…