Yarm Seasonal Pollution
Yarm usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in April. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Stockton-on-Tees, United Kingdom.
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Average EPA AQI
35
Rank 85 of 171 cities by average AQI
PM2.5
7.3
ug/m3 annualized city average
Seasonality
November
Cleanest: April
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Yarm
28
26
37
21
40
28
40
31
50
42
50
29
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Yarm, the current global analytics build covers 349 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.