Hirwaun Plume Plotter
Hirwaun incinerator plume
at 05:50 on Thu, 21 Nov 2024
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The map shows the (predicted) current state of pollution from the proposed incinerator at Fifth Avenue, Hirwaun Industrial Estate.

The red line shows wind direction. Green rings show distance (km). Colours show concentration of oxides of nitrogen at ground level. Maximum: 600 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
TOC
Hydrogen chloride
Cadmium and Thallium
Mercury
Other metals
Ammonia
Dioxins and furans
PCBs
PAHs

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

Concentration
per m3
Background
(annual mean)
Plume
Oxides of nitrogen6.16 µg600 ng(10%)
Sulphur dioxide2.79 µg150 ng(5%)
Carbon monoxide97.9 ng750 ng(766%)
Particulates10.3 µg75 ng(1%)
TOC162 ng150 ng(93%)
Hydrogen chloride185 ng75 ng(41%)
Hydrogen flourideN/A15 ng
Cadmium and Thallium285 pg300 pg(105%)
Mercury21.7 pg300 pg(1385%)
Other metals25 ng4.5 ng(18%)
Ammonia1.24 µg7.5 ng(1%)
Dioxins and furans4.58 fg0.6 fg(13%)
PCBs22.2 pg0.898 fg(0%)
PAHs252 pg15 pg(6%)
Display parameters
Zoom:
+
Area:
Centred
Downwind
Emissions:
Planned
Latest weather data
Wind 9.2 mph (4.1 m/s) from 70°. Cloud cover: 0/10. Temp: 2°C. Pressure: 1001 mb. Data from Cardiff airport at 05:50.