Cornwall Plume Plotter
Cornwall incinerator plume
at 17:50 on Thu, 25 Apr 2024
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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: 3.2 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 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 µg3.2 µg(43%)
Sulphur dioxide8.8 µg200 ng(2%)
Carbon monoxide96 µg194 ng(0%)
Particulates PM1023 µg14.4 ng(0%)
Hydrogen chloride1.7 µg140 ng(8%)
Hydrogen flouride1 µg6.82 ng(1%)
VOCsN/A3.61 ng
AmmoniaN/A963 pg
Mercury130 pg55.8 pg(43%)
Cadmium and thallium90 pg27.1 pg(30%)
Other metals49.7 ng2.08 ng(4%)
Dioxins and furans18.9 fg0.0345 fg(0%)
Display parameters
Zoom:
+
Area:
Centred
Downwind
Emissions:
Planned
Historical
Latest weather data
Wind 11.4 mph (5.1 m/s) from 320°. Cloud cover: 4/10. Temp: 10°C. Pressure: 1004 mb. Data from Newquay airport at 17:50.