Iguaçu Seasonal Pollution
Iguaçu usually records its highest OpenAQ-derived EPA AQI in September and its cleanest month in December. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Rio de Janeiro, Brazil.
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Average EPA AQI
33
Rank 4 of 4 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
September
Cleanest: December
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Iguaçu
22
25
26
37
42
47
38
41
47
25
22
21
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Iguaçu, the current global analytics build covers 355 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.