Westbury incinerator plume at 21:20 on Sat, 24 Jul 2021
Estimated concentration of oxides of nitrogen (μg/m3):

Crockerton Primary School1.3
Warminster Common1
Princecroft Primary School1
Cold Harbour1
Longbridge Deverill0.9
Hill Deverill0.9
Fox Holes0.9
Brixton Deverill0.8
Monkton Deverill0.8
Upton Scudamore0.6
Kingston Deverill0.5
Sambourne Primary School0.4
Warminster School0.3
Henfords Marsh0.2
The Minster Primary School0.2

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The map shows the distribution of pollution. The key below shows the concentration of oxides of nitrogen at each location.
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Maximum pollution in the map area is shown on right, with amount of oxides of nitrogen.
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1g = 1000mg
1mg = 1000μg
1μg = 1000ng
1ng = 1000pg
1pg = 1000fg