Ranjeet Sokhi has a dual role as the Director of the Centre for Atmospheric and Climate Physics Research (CACP) and of the Centre for Climate Change Research (C3R). He has nearly 200 publications with his research focusing on physical and chemical processes affecting air quality, exposure and health impacts on street, city and regional scales. He is an advisor for DEFRA, WHO, WMO and PHE and was a member of the UK Government’s Air Quality Modelling Steering Group and the Prediction Capability subgroup of AQSELG. He has participated in or coordinated a large number of projects and networks for NERC (e.g. PI of APHH PROMOTE), EC (e.g. TRANSPHORM. EMERGE), Environment Agency and industry. As a PI for NCAS he coordinates the development of the UK Air Quality Forecasting system. He is also the Chair of WMO/GURME Science Advisory Group and coordinator of WMO/GAW PREFIA project on Air Quality Prediction for Africa. has been the chair of the series of International Conferences on Air Quality – Science and Application since 1996.