Contact Didier Davignon:

Phone & Address


Université de Montréal, Environmental and occupational health department


Master of Science (high energy physics), Université de Montréal

Joint honours in mathematics and physics, Université de Montréal


Didier Davignon

Scientist in Air Quality Modeling - Issue response in air quality (modelling & analysis)

CURRENT S&T / RESEARCH - Air quality modeling

  • Atmospheric mercury transport, deposition and chemistry on global and regional scales
  • Mercury as a contaminant, including geochemical cycling, anthropogenic emissions, toxicology, public health issues, political and economical issues
  • Atmospheric transport of pollutants to the Arctic and polar atmospheric chemistry
  • Model development in air quality
  • Coupling weather and environmental models


Develops and maintains GRAHM model for atmospheric mercury; Develops the interface with weather model; Develops emission modeling

In charge of GRAHM model evaluation, of analyzing emission scenarios and source-receptor relationships


Dastoor, A., D. Davignon, N. Theys, M. Van Roozendael, A. Steffen and P. Ariya. 2007. Modeling Dynamic Exchange of Gaseous Elemental Mercury at Polar Sunrise. Environ. Sci. Technol. 42:5183-5188.

Ariya, P., A. Dastoor, M. Amyot, W. Schroeder, L. Barrie, K. Anlauf, F. Raofie, A. Ryzhkov, D. Davignon, J. Lalonde and A. Steffen. 2004. Arctic: A sink for mercury. Tellus. 56B, 397-403.

Expertise Categories associated with this S&T Expert:

     Adaptation & Impacts
          Computer analysis and modelling
          Environmental contaminants
          Environmental prediction
     Air Pollution & Quality
          Atmospheric chemistry
          Atmospheric transport
          Heavy metals
          Particulate matter
          Risk assessment
Arctic & Northern
          Atmospheric environment
          Heavy metals
Weather & Meteorology
     Atmospheric Modelling
          Environmental prediction
          Numeric modelling
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