Emission profiles from the foam and refrigeration sectors comparison with atmospheric concentrations. Part 1: Methodology and data

The article gives an overview of emission models based on global sales data using a top down analysis. It also elaborates on emission models based on demand in specific sectors (a bottom-up approach) including recovery for both refrigeration and foams; it presents how these bottom-up methods are applied. It summarises the measurements of concentrations of relevant gases in the atmosphere and describes how atmospheric concentrations can be calculated from emission data. Consequently it provides a basis for the practical determination of emission data, as well as the comparison of these data with atmospheric concentrations, and is also a summary description of the tools which can be used for the determination of emission data.