SmogRank / World / Brazil / July 2023
Most polluted cities in Brazil, July 2023
1 city in Brazil ranked by their average PM2.5 over the 31 days. Worst: São Paulo at 17.3 µg/m³, #84 of 1,159 cities in the world. A city needs measurements on 70% of the days to be ranked.
OpenAQ's archive, where our readings come from, has almost none for one of these days. Cities in the United States and Europe have it from the EPA's and the European Environment Agency's own records of the same monitors; elsewhere a city's average is over its other days. Why.
- 1São PauloSão Paulo 66
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
All cities in the world, July 2023 · Brazil now
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SmogRank, most polluted cities in Brazil, PM2.5, July 2023, smogrank.com/br/history/2023-07 (accessed 2 Oct 2026).
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