Brisbane Seasonal Pollution
Brisbane usually records its highest OpenAQ-derived EPA AQI in September and its cleanest month in April. The page uses OpenAQ-derived daily history for 5 mapped monitoring locations in Queensland, Australia.
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Average EPA AQI
32
Rank 11 of 59 cities by average AQI
PM2.5
6.1
ug/m3 annualized city average
Seasonality
September
Cleanest: April
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Brisbane
32
30
29
26
27
34
27
42
44
39
31
28
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Brisbane, the current global analytics build covers 363 daily rows from 2023-12-31 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.