Călan Seasonal Pollution
Călan usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in May. The page uses OpenAQ-derived daily history for 3 mapped monitoring locations in Hunedoara, Romania.
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Average EPA AQI
23
Rank 30 of 69 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
November
Cleanest: May
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Călan
28
32
22
17
15
15
19
19
20
26
33
28
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Călan, the current global analytics build covers 322 daily rows from 2024-01-01 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.