础蝉蝉辞肠颈补迟别听笔谤辞蹿别蝉蝉辞谤
Department of Atmospheric and Oceanic Sciences; Department of Chemistry
B.Sc. (University of Toronto, 2005)
M.Sc. (University of Western Ontario, 2007)
Ph.D. (University of British Columbia, 2011)
NSERC Postdoctoral Fellow (University of Bristol, 2012-2014)
Office: OM 425 & Burnside Hall BH816
Phone: (514) 398-3766
Email: thomas.preston [at] mcgill.ca
Lab: OM 414/ OM430
Lab Phone:听514-398-6916
奥别产辫补驳别:听
Research themes
- Analytical/Environmental
- Chemical Physics
Research Description
Our research group is focused on developing methods for the study of microphysical and chemical processes in atmospheric aerosol particles. Some topics of interest include: hygroscopicity and water transport, efflorescence and deliquescence, oxidative aging, and liquid-liquid phase separation.
The primary experimental method used by our group is optical trapping. This allows aerosols to be studied at the single particle level where physical parameters can then be determined with high precision and accuracy. Elastic and inelastic light scattering measurements from single particles are taken over time and are used to determine size and composition. We are also interested in the modelling of the interaction of electromagnetic radiation with particles as this is necessary for the interpretation of measurements and important for the development of future instrumentation.
In summary, our lab uses single particle spectroscopy and modelling to understand fundamental thermodynamic and kinetic processes in atmospheric aerosols.
Currently Teaching
CHEM 219. Introduction to Atmospheric Chemistry.
Note: For information about Fall 2025 and Winter 2026 course offerings, please check back on May 8, 2025. Until then, the "Terms offered" field will appear blank for most courses while the class schedule is being finalized.
Credits: 3
Offered by: Chemistry (Faculty of Science)
This course is not offered this catalogue year.
Description
An introduction to the basic topics in atmospheric chemistry. The fundamentals of the chemical composition of the atmosphere and its chemical reactions. Selected topics such as; a smog chamber, acid rain, and the ozone hole, will be examined.
- Offered in even years. Students should register in ATOC 219 in odd years
- Winter
- Prerequisites: CHEM 110 and CHEM 120, and one of MATH 139 or MATH 140 or MATH 150, or a CEGEP DEC in Science, or permission of instructor.
- Restriction: Not open to students who have taken ATOC 219, CHEM 419, or ATOC 419
- Offered in even years. Students should register in ATOC 219 in odd years
Most students use Visual Schedule Builder (VSB) to organize their schedules. VSB helps you plan class schedules, travel time, and more.
CHEM 377. Instrumental Analysis 2.
Note: For information about Fall 2025 and Winter 2026 course offerings, please check back on May 8, 2025. Until then, the "Terms offered" field will appear blank for most courses while the class schedule is being finalized.
Credits: 3
Offered by: Chemistry (Faculty of Science)
This course is not offered this catalogue year.
Description
Spectroscopic methods of analysis will be studied with respect to fundamentals, operational aspects and instrument design. Topics will range from UV-visible to x-ray spectrometry. Methodologies will be evaluated with respect to their application in spectrometric systems. Laboratory automation will be studied and applied in the laboratory.
- Each lab section is limited enrolment
- Winter
- Prerequisite: CHEM 367
- Each lab section is limited enrolment
Most students use Visual Schedule Builder (VSB) to organize their schedules. VSB helps you plan class schedules, travel time, and more.
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