Details of Chineham Plume Plotter

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

Stacks and buildings

The image below shows the layout of all stacks and buildings modelled. North is at the top. Numbers show the heights of buildings and stacks, in metres. Higher buildings are a lighter shade of pink.

Stack measurements

All of these are taken from [1]:

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

Emissions

The emission rates of pollutants are of two types. The planned emission rates are as given in [1]. They are listed below:

PollutantEmission rate
per second
Oxides of nitrogen3.23 g
Sulphur dioxide810 mg
Carbon monoxide810 mg
Particulates PM10160 mg
Hydrogen chloride160 mg
Hydrogen flouride16 mg
VOCs160 mg
Mercury810 μg
Cadmium and thallium810 μg
Other metals8.1 mg
Dioxins and furans1.61 ng

The actual emission rates are the annual average for 2016, as reported in [2] and [3]. They are listed below:

PollutantEmission rate
per second
Oxides of nitrogen2.877 g
Sulphur dioxide234 mg
Carbon monoxide68 mg
Particulates PM1016 mg
Hydrogen chloride101 mg
Hydrogen flouride1.232 mg
VOCs6 mg
Mercury9.2 μg
Cadmium and thallium57.1 μg
Other metals442 μg
Dioxins and furans53.9 pg

Background levels

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

PollutantBackground
concentration per m3
Oxides of nitrogen22.75 μg
Sulphur dioxide7.225 μg
Carbon monoxide1.72 μg
Particulates PM1018.2 μg
Hydrogen chloride436 ng
Hydrogen flourideN/A
VOCsN/A
Mercury4.862 ng
Cadmium and thallium295 pg
Other metals55.7 ng
Dioxins and furans23.8 fg

Weather data

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

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

References

1. Integra North Energy Recovery Facility, September 2001. Document, Emissions, Background monitoring.

2. Integra North Energy Recovery Facility Annual Performance Report 2016.

3. Chineham Emissions Data