Netherlands Seasonal Pollution
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI. This pilot covers 71 eligible cities with OpenAQ-derived daily AQI history.
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Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Doetinchem
-
-
-
-
83
67
59
68
73
71
78
75
Hengelo
-
-
-
-
-
-
-
-
-
-
67
68
Kampen
-
-
-
-
-
-
58
58
67
64
70
71
IJmuiden
-
-
-
-
-
-
-
-
-
-
56
68
Uithoorn
-
-
-
-
-
-
-
41
62
62
70
72
Dongen
72
61
70
36
82
57
51
52
66
67
109
72
Nieuwegein
-
-
-
-
-
-
-
-
-
61
64
63
Hulst
-
-
-
-
-
-
-
43
59
57
73
70
Methodology
The extractor maps OpenAQ monitoring locations to the nearest AQI Now city in the same country, aggregates PM2.5 and PM10 to daily city averages, and converts those concentrations to US EPA AQI. Country tool pages use only city summaries that satisfy the configured minimum daily coverage threshold.