San Nicolás de los Garza Health Impact
San Nicolás de los Garza averaged 22.2 ug/m3 PM2.5, equal to 4.4x the WHO annual PM2.5 guideline and about 1.0 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Nuevo Leon, Mexico.
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Average EPA AQI
Rank 46 of 86 cities by average AQI
PM2.5
22.2
ug/m3 annualized city average
Seasonality
May
Cleanest: June
Health indicator
1.0
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For San Nicolás de los Garza, the current global analytics build covers 176 daily rows from 2024-01-01 to 2024-12-26. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.