Voorschoten Seasonal Pollution
Voorschoten usually records its highest OpenAQ-derived EPA AQI in May and its cleanest month in April. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Zuid-Holland, Netherlands.
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Average EPA AQI
57
Rank 11 of 71 cities by average AQI
PM2.5
15.1
ug/m3 annualized city average
Seasonality
May
Cleanest: April
Health indicator
0.7
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Voorschoten
-
55
67
32
72
53
43
45
57
59
69
69
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Voorschoten, the current global analytics build covers 330 daily rows from 2024-02-03 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.