Details of Swadlincote Plume Plotter

This page should be read in conjunction with How Plume Plotter Works. It provides more details specific to the Swadlincote version of Plume Plotter.

Stacks and buildings

Building measurements are taken from [1].

The image below shows the layout of the stack and buildings modelled. North is at the top; colours and numbers indicate the height of the buildings and the stack:

Note that the emergency generator is not included in the model because it is supposed to operate when the incinerator is not operating, but the plume plotter assumes that the incinerator operates continuously.

Stack measurements

These are taken from [1]:

• Stack location: 52.767544,-1.6034975.
• Stack height: 60 m.
• Stack diameter: 2.2 m.
• Stack gas exit velocity: 16.8 m/s.
• Stack gas temperature: 145 °C.

The following values are used for albedo, Bowen ratio and roughness length:

• Albedo: 0.23.
• Bowen ratio: 1.
• Roughness length: 0.2.

Emissions

The emission rates of pollutants are taken from [1]:

Background levels

The background levels of pollutants are taken from [1]:

Weather data

Weather data is taken from a local synoptic weather station: Nottingham Watnall.

Upper air data is the latest reported by the Nottingham upper air station.

References

1. Air Quality Assessment: Swadlincote Energy Recovery Facility, South Derbyshire. Air Quality Consultants Ltd. December 2023.