SOCAAR is pleased to announce our next seminar in our 2013-2014 seminar
series.
Real-time characterization of soot particles from wood burning
Joel Corbin,
PhD Candidate
Institute for Atmospheric and Climate Science, ETH Zurich, Switzerland
The smoke emitted by flames and engines often appears black due to high
concentrations of tiny “soot” particles. These light-absorbing, chemically and
morphologically complex particles have major climate and health effects. For
example, soot particles are considered second only to CO2 in direct global
warming, and, in the case of diesel exhaust, have recently been declared
carcinogenic by the WHO.
The fate of soot particles in the atmosphere and in the human body depends
on particle properties like size, shape, surface chemistry, and chemical
composition. These properties all depend on combustion conditions, which
change rapidly during a dynamic process like wood-burning. After emission,
continued change occurs due to atmospheric oxidation and mixing.
To understand the dynamic evolution of soot, real-time analysis can be
invaluable. This talk will describe the chemical and morphological
characterization of soot by online techniques such as aerosol mass
spectrometry, with an emphasis on the shape and composition of wood-burning
aerosols.
January 8, 2014, 3 - 4 pm
Wallberg Building, 200 College Street, Room 407
The seminar will be recorded and posted on the SOCAAR website:
www.socaar.utoronto.ca
|