Hoddesdon Plume Plotter
Hoddesdon incinerator plume
at 20:50 on Sun, 25 Feb 2024
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The map shows the (predicted) current state of pollution from the proposed incinerator at Rattys Lane.

The red line shows wind direction. Green rings show distance (km). Colours show concentration of oxides of nitrogen at ground level. Maximum: 34.3 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
VOCs
Carbon monoxide
Hydrogen chloride
Hydrogen flouride
Ammonia
Cadmium and thallium
Mercury
Other metals
Dioxins and furans
PAHs
PCBs

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

Concentration
per m3
Background
(annual mean)
Plume
Oxides of nitrogen23.5 µg34.3 µg(146%)
Particulates25 µg1.71 µg(7%)
Sulphur dioxide4.6 µg8.56 µg(186%)
VOCs500 ng1.71 µg(343%)
Carbon monoxide33.2 µg8.56 µg(26%)
Hydrogen chloride700 ng1.71 µg(245%)
Hydrogen flouride3 ng171 ng(5717%)
Ammonia1.66 µg1.71 µg(103%)
Cadmium and thallium200 pg8.56 ng(4282%)
Mercury4.4 pg8.56 ng(194645%)
Other metals39.9 ng85.6 ng(215%)
Dioxins and furans26 fg17.1 fg(66%)
PAHs6 ng171 pg(3%)
PCBs10 pg856 pg(8564%)
Display parameters
Zoom:
+
Area:
Centred
Downwind
Emissions:
Planned
Latest weather data
Wind 18.3 mph (8.2 m/s) from 50°. Cloud cover: 8/10. Temp: 6°C. Pressure: 996 mb. Data from Stansted airport at 20:50.