Tijuana Health Impact
Tijuana averaged 29.9 ug/m3 PM2.5, equal to 6.0x the WHO annual PM2.5 guideline and about 1.4 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Baja California, Mexico.
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Average EPA AQI
90
Rank 10 of 86 cities by average AQI
PM2.5
29.9
ug/m3 annualized city average
Seasonality
December
Cleanest: April
Health indicator
1.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Tijuana
99
-
73
59
-
74
-
-
-
-
-
104
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Tijuana, the current global analytics build covers 50 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.