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Salamanca Seasonal Pollution

Salamanca usually records its highest OpenAQ-derived EPA AQI in April and its cleanest month in September. The page uses OpenAQ-derived daily history for 5 mapped monitoring locations in Guanajuato, Mexico.

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Average EPA AQI

68

Rank 45 of 86 cities by average AQI

PM2.5

19.0

ug/m3 annualized city average

Seasonality

April

Cleanest: September

Health indicator

0.9

cigarette-equivalent per day

Yearly EPA AQI trend

0501002024Salamanca

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec
Salamanca
71
70
72
82
73
64
-
55
35
56
67
66

What this seasonality page measures

Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.

For Salamanca, the current global analytics build covers 276 daily rows from 2024-01-01 to 2025-01-01. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.

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