Details of Parley Plume Plotter

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

Stack measurements

These are taken from [1]:

The following values are used for albedo, Bowen ratio and roughness length. Roughness length is as specified in [1]:


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

PollutantEmission rate
per second
Oxides of nitrogen1.172 g
Sulphur dioxide293 mg
Carbon monoxide488 mg
Particulates49 mg
Hydrogen chloride39 mg
TOC98 mg
Hydrogen flouride10 mg
Ammonia20 mg
Cadmium and Thallium195 μg
Mercury195 μg
Other metals2.929 mg
PaHs1.025 μg
Dioxins and furans586 pg
PCBs48.82 μg

Background levels

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

concentration per m3
Oxides of nitrogen18.27 μg
Sulphur dioxide1.53 μg
Carbon monoxide381 μg
Particulates14.45 μg
Hydrogen chloride710 ng
TOC720 ng
Hydrogen flouride2.35 μg
Ammonia7.14 μg
Cadmium and Thallium110 pg
Mercury2.43 ng
Other metals14.41 ng
PaHs390 pg
Dioxins and furans32.99 fg
PCBs128.9 pg

Weather data

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

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


1. Proposed Energy Recovery Facility - Environmental Statement Section 10 - Air Quality And Odour. Fichtner. February 2021.