Cornwall Plume Plotter
Cornwall incinerator plume
at 23:50 on Mon, 27 Mar 2023
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The map shows the (predicted) current state of pollution from the incinerator at St Dennis.

The red line shows wind direction. Green rings show distance (km). Colours show concentration of oxides of nitrogen at ground level. Maximum: 868 ng/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 PM10
Hydrogen chloride
Hydrogen flouride
Mercury
Cadmium and thallium
Other metals
Dioxins and furans

Oxides of nitrogen
Sulphur dioxide
Carbon monoxide
Particulates PM10
Hydrogen chloride
Hydrogen flouride
Mercury
Cadmium and thallium
Other metals
Dioxins and furans

Concentration
per m3
Background
(annual mean)
Plume
Oxides of nitrogen7.5 µg868 ng(12%)
Sulphur dioxide8.8 µg54.1 ng(1%)
Carbon monoxide96 µg52.4 ng(0%)
Particulates PM1023 µg3.91 ng(0%)
Hydrogen chloride1.7 µg38 ng(2%)
Hydrogen flouride1 µg1.85 ng(0%)
VOCsN/A978 pg
AmmoniaN/A261 pg
Mercury130 pg15.1 pg(12%)
Cadmium and thallium90 pg7.33 pg(8%)
Other metals49.7 ng564 pg(1%)
Dioxins and furans18.9 fg0.00936 fg(0%)
Display parameters
Zoom:
+
Area:
Centred
Downwind
Emissions:
Planned
Historical
Latest weather data
Wind 12.8 mph (5.7 m/s) from 150°. Cloud cover: 8/10. Temp: 8°C. Pressure: 1021 mb. Data from Newquay airport at 23:50.