Mark works primarily on measurements of gas and particulate emissions from fires in both field and laboratory environments.  His research includes current projects investigating air quality impacts of fire smoke in parts of South East Asia, and also in Canada.  Mark runs the Combustion Chamber facility based at Rothamsted Research which is used by a number of researchers in the group to undertake experimental fire work.  He is also regularly involved in other field campaigns the group undertake including experimental design, set up, and operation of instruments on the ground and in aircraft.