Emerald Seasonal Pollution
Emerald 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 Queensland, Australia.
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Average EPA AQI
32
Rank 14 of 59 cities by average AQI
PM2.5
6.0
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
Emerald
30
30
27
21
22
29
26
37
48
42
39
29
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Emerald, the current global analytics build covers 347 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.