Details of Western Sydney Plume Plotter

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

Stacks and buildings

Buildings were not included in the model because insufficient detail was given in [1].

Stack measurements

These are taken from [1]:

Stack location: -33.82011,150.85316.
Stack height: 75 m.
Stack diameter: 2.828 m.
Stack gas exit velocity: 20.9 m/s.
Stack gas temperature: 61 °C.

The following values are used for albedo, Bowen ratio and roughness length. None of these are specified in [1]:

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

Emissions

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

Pollutant	Emission rate per second
Oxides of nitrogen	12.64 g

Background levels

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

Pollutant	Background concentration per m³
Oxides of nitrogen	21.6 μg

Weather data

Weather data is taken from METAR reports from a local airport: Richmond.

Upper air data is the latest reported by the Moree Mo upper air station.

References

1. Technical report A: Air quality and odour impact assessment - WESTERN SYDNEY ENERGY & RESOURCE RECOVERY CENTRE (WSERRC). Todoroski Air Sciences Pty Ltd. September 2020.