Allerton Plume Plotter
Allerton incinerator plume
at 04:00 on Sat, 22 Feb 2025
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The map shows the (predicted) current state of pollution from the incinerator at Knaresborough.

The red line shows wind direction. Green rings show distance (km). Colours show concentration of oxides of nitrogen at ground level. Maximum: 4.21 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
Mercury
Cadmium and Thallium
Other metals
Dioxins and furans

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

Concentration
per m3
Background
(annual mean)
Plume
Oxides of nitrogen32.2 µg4.21 µg(13%)
Sulphur dioxide2.4 µg933 ng(39%)
Carbon monoxide250 µg174 ng(0%)
Particulates29.7 µg8.28 ng(0%)
Hydrogen chloride560 ng116 ng(21%)
Hydrogen flourideN/A1.57 ng
VOCsN/A6.29 ng
AmmoniaN/AN/A
Mercury500 pg69.2 pg(14%)
Cadmium and Thallium2.25 ng27.7 pg(1%)
Other metals480 ng1.85 ng(0%)
Dioxins and furans41.4 fg0.216 fg(1%)
PaHsN/AN/A
Display parameters
Zoom:
+
Area:
Centred
Downwind
Emissions:
Planned
Historical
Latest weather data
Wind 6.9 mph (3.1 m/s) from 170°. Cloud cover: 10/10. Temp: 7.5°C. Pressure: 1004 mb. Data from Topcliffe at 04:00.