South London incinerator plume at 14:50 on Fri, 20 Oct 2017
Estimated concentration of oxides of nitrogen (μg/m3):

The Archbishop Lanfranc Academy4.3
Gonville Academy2.3
Winterbourne Junior Girls' School1.4
Winterbourne Nursery and Infants' School1.4
Winterbourne Boys' Academy1.4
Thornton Heath1.2
Maple House School0.8
Beulah Junior School0.8
Paxton Academy0.7
Beulah Infants' School0.7
CACFO UK Education Centre0.6
St James the Great Primary and Nursery School0.6
David Livingstone Academy0.5
Cypress Primary School0.4
All Saints Primary School0.4
St Cyprian's Greek Orthodox Primary Academy0.4
Harris City Academy0.4
Upper Norwood0.4
James Dixon Primary School0.3
Thornton Heath Nursery School0.3
Harris Academy0.3
Bensham Manor School0.3
St John's Primary School0.2
Harris Primary Academy0.2
Lower Sydenham0.2
Alexandra Junior School0.2
St Michael's Primary School0.2
Sydenham High School0.2
Our Lady and St Philip Neri Primary School0.2
Paxton Primary School0.2
Whitehorse Manor Junior and Infant School0.2
Downsview Primary and Nursery School0.2
Upper Sydenham0.2
Rockmount 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