Wildfire and the atmosphere: Modelling the chemical and dynamic interactions at the regional scale

► We investigate the impact on gaseous air pollutants downwind of a Mediterranean wildfire. ► We use the “off-line” coupling between an atmospheric model and a fire spread model. ► The plume rise is more sensitive to the sensible heat flux released by the fire. ► High concentrations in ozone precursors are simulated close and downwind of the fire. ► The depletion of ozone is reproduced in the smoke plume near and downwind of the fire.