Portland Plume Plotter
Portland incinerator plume
at 00:20 on Sun, 13 Jul 2025
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The map shows the (predicted) current state of pollution from the proposed incinerator at Balaclava Bay.

The red line shows wind direction. Green rings show distance (km). Colours show concentration of oxides of nitrogen at ground level. Maximum: 84.8 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
VOCs
Hydrogen flouride
Ammonia
Cadmium and Thallium
Mercury
Other metals
PAHs
Dioxins and furans
PCBs

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

Concentration
per m3
Background
(annual mean)
Plume
Oxides of nitrogen22 µg84.8 µg(385%)
Sulphur dioxide3.32 µg21.2 µg(638%)
Carbon monoxide209 µg35.3 µg(17%)
Particulates14.7 µg3.53 µg(24%)
Hydrogen chloride710 ng4.23 µg(596%)
VOCs270 ng7.07 µg(2619%)
Hydrogen flouride2.35 µg705 ng(30%)
Ammonia820 ng7.07 µg(862%)
Cadmium and Thallium570 pg14.1 ng(2478%)
Mercury2.8 ng14.1 ng(504%)
Other metals124 ng212 ng(170%)
PAHs980 pg74.2 pg(8%)
Dioxins and furans33 fg42.4 fg(128%)
PCBs129 pg74.2 pg(58%)
Display parameters
Zoom:
+
Area:
Centred
Downwind
Emissions:
Planned
Latest weather data
Wind 2.2 mph (1 m/s) from 20°. Cloud cover: 0/10. Temp: 16°C. Pressure: 1014 mb. Data from Bournemouth airport at 00:20.