Ranjeet S. Sokhi is director of the Centre for Atmospheric and Climate Physics Research, School of Physics, Astronomy and Mathematics, University of Hertfordshire, UK. He was the coordinator of the COST 728 Action on Enhancing Mesoscale Meteorological Modelling for Air Pollution and Dispersion Applications and is a PI for the National Centre for Atmospheric Science, UK. Alexander Baklanov is scientific officer of Research Department, World Meteorological Organization, Geneva, Switzerland, and affiliated professor at the Niels Bohr Institute of the University of Copenhagen, Denmark. He was the vice coordinator for the COST 728 Action on Enhancing Mesoscale Meteorological Modelling for Air Pollution and Dispersion Applications. K. Heinke Schlünzen is professor for meteorology, head of the Mesoscale and Microscale Modelling group at Meteorological Institute, Center for Earth System Research and Sustainability, Universität Hamburg, Germany. She was the vice coordinator for the COST 728 Action on Enhancing Mesoscale Meteorological Modelling for Air Pollution and Dispersion Applications. Since 2016 she has been a member of the review board on Atmospheric Science, Oceanography and Climate Research of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation).

• Preface; Acknowledgements; 1. Introduction; 2. Basic Concepts of Mesoscale Modelling for Air Pollution Applications; 3. Representation of Surface Processes in Mesoscale Models; 4. Representation of Boundary Layer, Radiation, Cloud and Aerosol Processes in Mesoscale Models; 5. Integration and Implementation of Models and Interfaces; 6. Applications of Mesoscale Models for Air Pollution Research; 7. Evaluating the Performance of Mesoscale Meteorology Models Used for Air Quality Simulations; 8. Policy Relevance and Support Provided by Mesoscale Models; 9. User Training for Mesoscale Modelling Applications to Air Pollution.

Ranjeet S. Sokhi is director of the Centre for Atmospheric and Climate Physics Research, School of Physics, Astronomy and Mathematics, University of Hertfordshire, UK. He was the coordinator of the COST 728 Action on Enhancing Mesoscale Meteorological Modelling for Air Pollution and Dispersion Applications and is a PI for the National Centre for Atmospheric Science, UK. Alexander Baklanov is scientific officer of Research Department, World Meteorological Organization, Geneva, Switzerland, and affiliated professor at the Niels Bohr Institute of the University of Copenhagen, Denmark. He was the vice coordinator for the COST 728 Action on Enhancing Mesoscale Meteorological Modelling for Air Pollution and Dispersion Applications. K. Heinke Schlünzen is professor for meteorology, head of the Mesoscale and Microscale Modelling group at Meteorological Institute, Center for Earth System Research and Sustainability, Universität Hamburg, Germany. She was the vice coordinator for the COST 728 Action on Enhancing Mesoscale Meteorological Modelling for Air Pollution and Dispersion Applications. Since 2016 she has been a member of the review board on Atmospheric Science, Oceanography and Climate Research of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation).

• Preface; Acknowledgements; 1. Introduction; 2. Basic Concepts of Mesoscale Modelling for Air Pollution Applications; 3. Representation of Surface Processes in Mesoscale Models; 4. Representation of Boundary Layer, Radiation, Cloud and Aerosol Processes in Mesoscale Models; 5. Integration and Implementation of Models and Interfaces; 6. Applications of Mesoscale Models for Air Pollution Research; 7. Evaluating the Performance of Mesoscale Meteorology Models Used for Air Quality Simulations; 8. Policy Relevance and Support Provided by Mesoscale Models; 9. User Training for Mesoscale Modelling Applications to Air Pollution.