Swansea Plume Plotter
Swansea incinerator plume
at 23:20 on Mon, 27 Mar 2023
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The map shows the (predicted) current state of pollution from the proposed incinerator at Clarion Close, Morriston.

The red line shows wind direction. Green rings show distance (km). Colours show concentration of oxides of nitrogen at ground level. Maximum: 31.9 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
Particulates
Sulphur dioxide
Carbon monoxide
Hydrogen chloride
VOCs
Cadmium and thallium
Mercury
Other metals
PAHs

Oxides of nitrogen
Particulates
Sulphur dioxide
Carbon monoxide
Hydrogen chloride
VOCs
Cadmium and thallium
Mercury
Other metals
PAHs

Concentration
per m3
Background
(annual mean)
Plume
Oxides of nitrogen12.6 µg31.9 µg(253%)
Particulates12.7 µg1.59 µg(12%)
Sulphur dioxide3.33 µg7.99 µg(240%)
Carbon monoxide112 µg7.99 µg(7%)
Hydrogen chloride 212 ng1.59 µg(750%)
Hydrogen fluoride N/A160 ng
VOCs450 ng1.59 µg(353%)
Cadmium and thallium320 pg8.06 ng(2519%)
Mercury3.5 ng8.06 ng(230%)
Other metals71 ng79.9 ng(113%)
Dioxins and furansN/A16 fg
PAHs400 pg2.75 pg(1%)
PCBsN/A1.47 fg
Display parameters
Zoom:
+
Area:
Centred
Downwind
Emissions:
Planned
Latest weather data
Wind 11.4 mph (5.1 m/s) from 140°. Cloud cover: 8/10. Temp: 7°C. Pressure: 1023 mb. Data from Cardiff airport at 23:20.