Air Pollutant Emission Inventory Guidebook for the States of the Gulf Cooperation Council, and Introductory Guidance on Air Emissions Dispersion Modelling

The current guidebook presents a unified method to compile emission inventories at national level that are suitable for regional comparison. It also provides a state-of-the-art web-based tool that GCC countries can use to facilitate computations and calculations. In addition, introductory guidance for air pollution dispersion modelling provides countries with an overview of the different methods available for dispersion modelling, including their data requirements, application, benefits and limitations.

This guidebook intends to facilitate the compilation of emission inventories of anthropogenic and biogenic emissions for GCC countries and the region. Emission inventories are considered the basis for the design of control strategies to abate air pollution locally and to help assess the contributions of air pollutants transported over long ranges. It is based on updated emission factors published in 2019 under the joint European Monitoring and Evaluation Programme/European Environment Agency (EMEP/EEA) air pollutant emission inventory guidebook. The guidebook describes the key sources of input data most relevant to the computation of GCC emission inventories, and references the various factors used to create real-time and chemically resolved emissions. The guidebook is divided into three chapters. Chapter 1 is an introduction that summarizes the need for emission inventories, basic principles in emission inventory compilation, the pollutants covered, and the source sectors excluded from this guidebook. Chapter 2 contains succinct descriptions of the main emission sources in the energy, industry, agriculture, and waste sectors. Chapter 3 serves as an introduction to air pollution dispersion modelling summarizing different forecasting models, assessment methods, and input data requirements.