SmogRank / World / South America / Brazil / São Paulo

Most polluted cities in São Paulo, Brazil

No city in São Paulo, Brazil has enough readings to rank for the last 30 days.

A city joins this ranking with enough days of readings over the last 30 days; none here has that right now, so there is nothing to map or chart.

Good0–50

Moderate51–100

Sensitive groups101–150

Unhealthy151–200

Very unhealthy201–300

Hazardous301+

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

Estimated: cities without a monitor

São Paulo cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City	7-day estimate	Band
São Paulo	≈ 21 µg/m³	Moderate
Guarulhos	≈ 23 µg/m³	Moderate
Campinas	≈ 24 µg/m³	Moderate
São Bernardo do Campo	≈ 23 µg/m³	Moderate
Sorocaba	≈ 16 µg/m³	Moderate
Osasco	≈ 21 µg/m³	Moderate
São José dos Campos	≈ 3 µg/m³	Good
Ribeirão Preto	≈ 41 µg/m³	Unhealthy for sensitive groups
Santo André	≈ 23 µg/m³	Moderate
São José do Rio Preto	≈ 17 µg/m³	Moderate
Jundiaí	≈ 15 µg/m³	Moderate
Piracicaba	≈ 34 µg/m³	Moderate
Santos	≈ 18 µg/m³	Moderate
Mauá	≈ 23 µg/m³	Moderate
Diadema	≈ 21 µg/m³	Moderate
Bauru	≈ 17 µg/m³	Moderate
Carapicuíba	≈ 21 µg/m³	Moderate
Itaquaquecetuba	≈ 23 µg/m³	Moderate
Praia Grande	≈ 18 µg/m³	Moderate
Franca	≈ 19 µg/m³	Moderate
São Vicente	≈ 18 µg/m³	Moderate
Mogi das Cruzes	≈ 4 µg/m³	Good
Taubaté	≈ 3 µg/m³	Good
Suzano	≈ 23 µg/m³	Moderate
Barueri	≈ 21 µg/m³	Moderate
Guarujá	≈ 18 µg/m³	Moderate
Limeira	≈ 31 µg/m³	Moderate
Sumaré	≈ 24 µg/m³	Moderate
Taboão da Serra	≈ 21 µg/m³	Moderate
São Carlos	≈ 27 µg/m³	Moderate
Embu das Artes	≈ 21 µg/m³	Moderate
Indaiatuba	≈ 19 µg/m³	Moderate
Cotia	≈ 21 µg/m³	Moderate
Jacareí	≈ 3 µg/m³	Good
Americana	≈ 24 µg/m³	Moderate
Itapevi	≈ 21 µg/m³	Moderate
Marília	≈ 14 µg/m³	Moderate
Hortolândia	≈ 24 µg/m³	Moderate
Presidente Prudente	≈ 12 µg/m³	Moderate
Araçatuba	≈ 15 µg/m³	Moderate

Updated 2026-10-06 23:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.