Metz Seasonal Pollution
Metz usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in September. The page uses OpenAQ-derived daily history for 3 mapped monitoring locations in Grand Est, France.
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Average EPA AQI
35
Rank 145 of 272 cities by average AQI
PM2.5
7.9
ug/m3 annualized city average
Seasonality
January
Cleanest: September
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Metz
51
36
41
30
33
27
35
38
24
26
40
32
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Metz, the current global analytics build covers 338 daily rows from 2024-01-02 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.