Emissions estimation is a specific technical discipline based on chemical and mechanical engineering, chemistry and physics.
Experience and expertise are fundamental in determining which estimation techniques are suitable for a particular site, taking into account the pollutants emitted, source types and the type and quality of available data.
Depending on the requirements of the site and the nature of the available data, we will estimate emissions using the most suitable technique. Selecting the right technique often involves a trade-off between technical effectiveness and practical concerns such as budget, resources and time.
There is a hierarchy of emissions estimation techniques (EETs), ranging broadly from the most accurate and site-specific to the most generic and least accurate, as follows: