Alton Plume Plotter
Alton incinerator plume
at 19:50 on Sun, 25 Feb 2024
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The map shows the (predicted) current state of pollution from the proposed incinerator at A31, near Froyle.

The red line shows wind direction. Green rings show distance (km). Colours show concentration of oxides of nitrogen at ground level. Maximum: 19.4 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
TOC
Hydrogen flouride
Ammonia
Cadmium and thallium
Mercury
Other metals
PAHs
Dioxins and furans
PCBs

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

Concentration
per m3
Background
(annual mean)
Plume
Oxides of nitrogen14.8 µg19.4 µg(131%)
Sulphur dioxide4.93 µg4.85 µg(98%)
Carbon monoxide255 µg8.08 µg(3%)
Particulates15.1 µg811 ng(5%)
Hydrogen chloride710 ng972 ng(137%)
TOC310 ng1.62 µg(522%)
Hydrogen flouride2.35 µg161 ng(7%)
Ammonia2.49 µg1.62 µg(65%)
Cadmium and thallium190 pg3.23 ng(1702%)
Mercury1.51 ng3.23 ng(214%)
Other metals24.9 ng48.5 ng(195%)
PAHs160 pg17 pg(11%)
Dioxins and furans33 fg9.7 fg(29%)
PCBs127 pg808 pg(637%)
Display parameters
Zoom:
+
Area:
Centred
Downwind
Emissions:
Planned
Latest weather data
Wind 15 mph (6.7 m/s) from 40°. Cloud cover: 10/10. Temp: 5°C. Pressure: 992 mb. Data from Odiham airport at 19:50.