Ploieşti Seasonal Pollution
Ploieşti usually records its highest OpenAQ-derived EPA AQI in October and its cleanest month in June. The page uses OpenAQ-derived daily history for 12 mapped monitoring locations in Prahova, Romania.
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Average EPA AQI
20
Rank 39 of 69 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
October
Cleanest: June
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Ploieşti
27
24
19
15
14
14
20
18
21
29
25
15
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Ploieşti, the current global analytics build covers 342 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.