Banner Image for Gilbert's article on the origins of PM2.5 into Quebec shows a sunset skyline with smokestacks

Using Back-Trajectories to Trace the Origins of Fine Particulate Matter (PM2.5)

– By Jean-Philippe Gilbert, Richard Leduc, and Nathalie Barrette, Geography Department, University of Laval

Air pollution in the province of Québec, Canada is monitored daily to allow for a rapid response to public health issues. However, there are few studies concerning the long-distance trend of pollutants, and those studies that do exist focus on a small area of study. The objective of this paper is to determine the sources of certain pollutants coming in to Québec,

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The MOPITT Terra spacecraft launch showing the Atlas IIAS lift-off on 18th December 1999 (Photo credit: Jim Drummond)

MOPITT, Atmospheric Pollution, and Me: A Personal Story

– By Jim Drummond, Principal Investigator for the Measurements Of Pollution in The Troposphere (MOPITT) instrument on the Terra satellite –

It’s 1987 and I have just bought my first personal computer – an IBM PC clone running at a stunning 8MHz! I’m also on sabbatical at the National Center for Atmospheric Research (NCAR) in Boulder, Colorado,

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