Saint-Lys Seasonal Pollution
Saint-Lys usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in September. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Occitanie, France.
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Average EPA AQI
46
Rank 18 of 272 cities by average AQI
PM2.5
10.9
ug/m3 annualized city average
Seasonality
November
Cleanest: September
Health indicator
0.5
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Saint-Lys
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49
36
36
58
52
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Saint-Lys, the current global analytics build covers 144 daily rows from 2024-08-10 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.