This course is particularly designed for managers and scientists with limited experience in air pollution modelling. All aspects of air pollution will be discussed: emissions, atmospheric processes, chemical concentration and deposition impacts, and adverse effects on humans and the environment. Then, in relatively simple terms, attention will be given to the available mathematical and numerical methods used to simulate, understand, and predict air pollution phenomena. Finally, the available software tools for simulating air quality matters will be presented, including the simulation of meteorological parameters needed for air quality analyses.

Participants will learn about all the major topics and challenges related to air pollution at short, intermediate, and continental scales (global climate issues will not be included). Participants will also learn about the availability and proper use of air pollution software and, in particular, the modelling tools recommended by regulatory agencies in North America and Europe. The advantages and limitations of models will also be discussed.

The Course can be attended in person at the Wessex Institute in the UK or online.

Course Structure

The course will run daily from 9 am to 5 pm (UTC+1).

  • Day 1 – Morning
    • 1.1 The Atmosphere
    • 1.2 Natural and Anthropogenic Emissions of Pollutants
    • 1.3 Estimates of Natural and Anthropogenic Emission Rates

  • Day 1 – Afternoon
    • 1.4 Computer Simulation Modelling
    • 1.5 Mathematical/Numerical Modelling of Meteorological Phenomena
    • 1.6 Mathematical/Numerical Modelling of Air Pollution

  • Day 2 – Morning
    • 2.1 The Gaussian Plume Model
    • 2.2 The Gaussian Puff Model
    • 2.3 Simulation Exercises with US EPA SCREEN3 Model

  • Day 2 – Afternoon
    • 2.4 Grid Models and Photochemical Smog
    • 2.5 Deposition Modelling
    • 2.6 Particle Models

  • Day 3 – Morning
    • 3.2 Regulatory Modelling – US, Europe et al.
    • 3.2 Litigation Modelling
    • 3.3 Real-Time Forecast of Air Pollution

  • Day 3 – Afternoon
    • 3.4 Modelling of Adverse Effects of Air Pollution
    • 3.5 Statistical Methods for Air Pollution Analyses
    • 3.6 Case Studies


Dr Graham Schleyer
         Dr Paolo Zannetti

Dr Zannetti has performed studies and scientific research in environmental sciences for four decades. His activities have covered pure research in the fields of atmospheric sciences and numerical modelling, written publications, seminars and courses, project management, environmental consulting, editorial productions, and expert testimony. His major field of investigation and competence is air pollution. He has written more than 300 publications, and 40+ books and book chapters, including the book “Air Pollution Modeling”, completed in 1990, which was the first comprehensive book in the field and is still today a widely used textbook.

He has studied many air pollution cases throughout the world. In particular, in the first phase of his scientific career, he studied and modelled the air pollution affecting the city of Venice, Italy, and was the project manager in Kuwait of the first comprehensive air pollution study (monitoring and modelling) in the Persian Gulf. In the last 20 years, Dr Zannetti has investigated hundreds of accidental and regular releases caused by industrial, transportation, and agricultural activities, throughout the world.

He has often used computer models to simulate the transport and fate of atmospheric chemicals. In most of these cases, he simulated the ambient concentrations caused by the emissions using his own computer models (AVACTA II, MONTECARLO) and/or those developed and recommended by government agencies, such as the US Environmental Protection Agency (US EPA). In particular, he performed pioneering work for the development of new Lagrangian modelling techniques in which air pollution is simulated by computer methods using a series of independent segments, puffs, or particles.

He is often invited to present talks at conferences and seminars throughout the world. In particular, he has taught air pollution courses in Italy (University of Bari-Taranto), California (Berkeley Extension), Kuwait (Kuwait Institute for Scientific Research, KISR, and Kuwait Foundation for the Advancement of Sciences, KFAS), and at the Wessex Institute of Technology, WIT, where he is Professor of Environmental Sciences.

Dr Zannetti’s professional credentials have been certified with the title of Qualified Environmental Professional (QEP), given by the Institute of Professional Environmental Practice (IPEP). The QEP certification recognizes professional achievements for environmental professionals and their compliance with the highest of ethical and professional standards.

Wessex Institute:

The EnviroComp Institute, USA:

EnviroComp Consulting, Inc., USA:


new forestThe course will take place in the New Forest, UK and can be attended in person at the Wessex Institute campus or online.

The New Forest is one of the UK's most popular tourist destinations and offers many attractions all year round, including picturesque forest villages as well as beautiful scenery. It is located in Southern England, spreading over 150 square miles of Hampshire. The New Forest was established as a royal hunting ground by King William I, and by the 14th century, the land was being used to produce timber for the shipbuilding industry on the south coast. Today, after nearly 1000 years, the forest is still Crown property and is administered by the Forestry Commission. Since the reign of King William I commoners have been given the right to graze their livestock, normally ponies, cattle and pigs, on Forest land where they wander freely. In the New Forest, the well-being of the animals and the special needs of the countryside are a priority. The Forest is unarguably recognised as one of the most unique and important wilderness areas in Western Europe and, because of this, it is now a National Park.

Venue and Accommodation

The course will take place at the Wessex Institute at Ashurst Lodge located in the New Forest, an outstanding National Park that borders the South Coast and can be attended in-person or online. Ashurst Lodge is an ideal venue for conferences, courses and seminars.  The participants can benefit from an excellent standard of accommodation in various hotels or bed and breakfasts in the area.  The surroundings are equally appealing to those who enjoy walking, horse riding, cycling, sailing and fine landscapes.

For more information on how to find Ashurst Lodge and to arrange accommodation during the courses please use the information provided on the Contact Us page.

Ashurst Lodge panorama