Didier Davignon

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

Responsibilities of the AQMAS team:

  • Transfer of innovations to air quality prediction systems for operational implementation
  • Verification and maintenance of air quality prediction systems
  • Production of air quality analyzes to support the development or implementation of Canadian regulatory programs

Current research and/or projects

Air Quality Prediction Systems

  • Updates to the Regional Air Quality Deterministic Prediction System (RAQDPS)
  • Updates to the FireWork system for predicting the impact of forest fires on air quality
  • Development of Operational Air Quality Products

Air quality modelling analyzes

  • Contributions to cost-benefit studies for regulatory projects related to air quality, through the modeling of air quality scenarios
  • Air quality modeling analyses to support the implementation of the Air Quality Management System (AQMS)

Professional activities / interests

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

Education and awards

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

Joint honours in mathematics and physics, Université de Montréal

Key publications

The FireWork air quality forecast system with near-real-time biomass burning emissions: Recent developments and evaluation of performance for the 2015 North American wildfire season

Radenko Pavlovic, Jack Chen, Kerry Anderson, Michael D. Moran, Paul-André Beaulieu, Didier Davignon & Sophie Cousineau

Journal of the Air & Waste Management Association Vol. 66 , Iss. 9, 2016

Human Health Impacts of Biodiesel Use in On-Road Heavy Duty Diesel Vehicles in Canada

Mathieu Rouleau, Marika Egyed, Brett Taylor, Jack Chen, Mehrez Samaali, Didier Davignon, and Gilles Morneau

Environmental Science & Technology 2013 47 (22), 13113-13121


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.

Research facility

2121, route Transcanadienne
Dorval, QC H9P 1J3


Université de Montréal, Environmental and occupational health department