Westbury Plume Plotter
Westbury incinerator plume
at 22:50 on Mon, 27 Mar 2023
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The map shows the (predicted) current state of pollution from the proposed incinerator at Stephenson Road.

The red line shows wind direction. Green rings show distance (km). Colours show concentration of oxides of nitrogen at ground level. Maximum: 1.76 µg/m3. This is the concentration at the location that is most polluted by the plume.

Breakdown of pollutants at most polluted location (green = background, red = added by plume):

Oxides of nitrogen
Sulphur dioxide
Carbon monoxide
Particulates
Hydrogen chloride
TOC
Hydrogen flouride
Ammonia
Cadmium and Thallium
Mercury
Other metals
Dioxins and furans
PAHs
PCBs

Oxides of nitrogen
Sulphur dioxide
Carbon monoxide
Particulates
Hydrogen chloride
TOC
Hydrogen flouride
Ammonia
Cadmium and Thallium
Mercury
Other metals
Dioxins and furans
PAHs
PCBs

Concentration
per m3
Background
(annual mean)
Plume
Oxides of nitrogen13.2 µg1.76 µg(13%)
Sulphur dioxide2.21 µg439 ng(20%)
Carbon monoxide266 µg732 ng(0%)
Particulates14.9 µg73.3 ng(0%)
Hydrogen chloride710 ng87.9 ng(12%)
TOC390 ng146 ng(38%)
Hydrogen flouride2.35 µg14.5 ng(1%)
Ammonia2.93 µg146 ng(5%)
Cadmium and Thallium570 pg293 pg(51%)
Mercury2.8 ng293 pg(10%)
Other metals142 ng4.39 ng(3%)
Dioxins and furans33 fg0.879 fg(3%)
PAHs980 pg1.54 pg(0%)
PCBs129 pg73.3 pg(57%)
Display parameters
Zoom:
+
Area:
Centred
Downwind
Emissions:
Planned
Latest weather data
Wind 9.2 mph (4.1 m/s) from 150°. Cloud cover: 8/10. Temp: 6°C. Pressure: 1023 mb. Data from Bristol airport at 22:50.