Zaandam Seasonal Pollution
Zaandam usually records its highest OpenAQ-derived EPA AQI in September and its cleanest month in April. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Noord-Holland, Netherlands.
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Average EPA AQI
14
Rank 61 of 71 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
September
Cleanest: April
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Zaandam
-
-
18
10
16
14
12
14
20
12
14
12
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Zaandam, the current global analytics build covers 258 daily rows from 2024-03-08 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.