The Hague Seasonal Pollution
The Hague usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in April. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in South Holland, Netherlands.
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Average EPA AQI
34
Rank 47 of 71 cities by average AQI
PM2.5
7.3
ug/m3 annualized city average
Seasonality
November
Cleanest: April
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
The Hague
33
24
36
20
35
27
21
38
41
33
49
46
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For The Hague, the current global analytics build covers 361 daily rows from 2024-01-03 to 2024-12-31. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.