EMFAC-HK Web Based Training

Overview of the Types of Output Modes EMFAC-HK Generates

Once you’re familiar with the input possibilities, it’s important to understand that the output data can be run in one of two modes.

• Burden mode: used for calculating regional (area-specific) emission inventories. In this mode, the model reports total emissions as tonnes per weekday for each pollutant, by vehicle class and the total vehicle fleet.

• EMFAC mode: generates emission factors in terms of grams of pollutant emitted per vehicle activity. Emission factor can be in terms of grams per kilometer, grams per hour, or grams per start, depending on the emissions process. In the EMFAC mode, an additional input form allows users to customize their output and select specific temperature, relative humidity, and speed values.