Allan Bertram

Oxidation of atmospheric organic particulate matter

Lead Institution

University of British Columbia

Principal Investigator

Allan Bertram

Project type

Exploratory Research

Organic particulate matter is abundant throughout the atmosphere. These organic particles may contribute significantly to the radiative forcing, thus, changing the Earth's climate. Additionally,…

The oxidation of self assembled organic monolayers by nitrate radicals using time of flight secondary ion mass spectrometry

Lead Institution

University of British Columbia

Principal Investigator

Allan Bertram

Project type

Exploratory Research

Field measurements have shown that organic material is abundant in the atmosphere, comprising 10-70% of the total fine particulate mass. This organic material can be in the form of pure organic…

Chemical Imaging Studies of Liquid-Liquid Phase Separation in Atmospheric Aerosols

Lead Institution

Lawrence Berkeley National Laboratory

Principal Investigator

Mary Gilles

Project type

Large-Scale EMSL Research

A large fraction of atmospheric aerosols contain an internal mixture of organics and inorganic salts. As the relative humidity (RH) cycles in the atmosphere, these particles can undergo phase…

Studies to Improve the Representation of Ice Nucleation in Models of the Arctic Climate

Lead Institution

University of British Columbia

Principal Investigator

Allan Bertram

Project type

Large-Scale EMSL Research

The Arctic region has been shown to be especially sensitive to climate change. Ice and mixed-phase clouds play an important role in climate in this region. Nevertheless, regional and global climate…

Effect of Condensed-Phase Photochemical Reactions on Viscosity and Volatility of Organic Aerosols

Lead Institution

University of California, Irvine

Principal Investigator

Manabu Shiraiwa

Project type

Large-Scale EMSL Research

Recent advances in understanding aerosol chemistry strongly suggest that: (1) photochemical processes occurring inside aerosol particles represent an important mechanism of aging for organic aerosols…

Physical and chemical properties of ice-nucleating particles in the Arctic

Lead Institution

University of British Columbia

Principal Investigator

Allan Bertram

Project type

Large-Scale EMSL Research

Ice-nucleating particles (INPs) influence the frequency and properties of clouds in the Arctic, which, in turn, influences climate. Hence, to improve predictions of climate in the Arctic, information…

EMSL Science Overview

Allan Bertram

Projects

Oxidation of atmospheric organic particulate matter

The oxidation of self assembled organic monolayers by nitrate radicals using time of flight secondary ion mass spectrometry

Chemical Imaging Studies of Liquid-Liquid Phase Separation in Atmospheric Aerosols

Studies to Improve the Representation of Ice Nucleation in Models of the Arctic Climate

Effect of Condensed-Phase Photochemical Reactions on Viscosity and Volatility of Organic Aerosols

Physical and chemical properties of ice-nucleating particles in the Arctic