Romford Seasonal Pollution
Romford usually records its highest OpenAQ-derived EPA AQI in August and its cleanest month in December. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Havering, United Kingdom.
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Average EPA AQI
17
Rank 154 of 171 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
August
Cleanest: December
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Romford
17
13
17
13
20
19
18
21
20
15
18
11
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Romford, the current global analytics build covers 345 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.