SmogRank / World / Mexico / San Luis Potosí / 2026
Most polluted cities in San Luis Potosí, Mexico, 2026
1 city in San Luis Potosí, Mexico ranked by their average PM2.5 so far (278 of 365 days); 1 above the WHO annual guideline (5.0 µg/m³). The only one: San Luis Potosí at 29.4 µg/m³, #197 of 2,745 cities in the world. A city needs measurements on 70% of the days to be ranked.
- 1San Luis Potosí 895.9×
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
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SmogRank, most polluted cities in San Luis Potosí, Mexico, PM2.5, 2026 (so far), smogrank.com/mx/region/san-luis-potosi/history/2026 (accessed 7 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.