Hoddesdon incinerator plume at 22:14 on Sat, 19 Aug 2017
Estimated concentration of oxides of nitrogen (μg/m3):

Freshwaters Primary Academy6
Sir Charles Kao UTC5.9
The Downs Primary School and Nursery5.8
Hare Street Community Primary School and Nursery5.6
Cooks Spinney Primary School and Nursery5.5
Mark Hall South5.4
The High5
Hare Street5
Little Parndon Primary School4.8
St Alban's Academy4.5
Burnt Mill Academy4.4
St Nicholas School4.1
Mark Hall Academy4.1
Hobbs Cross3.8
Pemberley Academy3.8
Churchgate Primary School3.6
Church Langley Community Primary School3.4
Matching Tye3.4
Housham Tye3.3
Churchgate Street3.3
Tany's Dell Community Primary School3.2
Little Parndon3.1
Fawbert and Barnard's Primary School3
Old Harlow2.8
Loyters Green2.8
Carters Green2.8
St Mark's West Essex School2.4
Harlowbury Primary School2.4
Mark Hall North2.2
Matching Green2.1
Newmans End1.9
Roydon Primary School1.6
Henry Moore Primary School1
Threshers Bush1
Purford Green Primary School0.9
Harlow Fields School and College0.5
Potter Street Academy0.4
Temple Fields0.2
Katherines Primary School0.2
St Luke's Academy0.2
Holy Cross Primary School0.2
William Martin Junior Infant and Nursery School0.2

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Weather data provided by
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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