SmogRank / World / Brazil / São Paulo / January 2024
Most unhealthy days in São Paulo, Brazil, January 2024
1 city in São Paulo, Brazil ranked by its share of unhealthy days over the 31 days. The most unhealthy days: São Paulo, Brazil, 0 of 28 measured days. A city needs measurements on 70% of the days to be ranked.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
- 1São Paulo 0 of 28
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 São Paulo, Brazil, by unhealthy days, PM2.5, January 2024, smogrank.com/br/region/sao-paulo/history/2024-01?by=days (accessed 7 Oct 2026).
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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.