Most polluted cities in Brazil
0 measured cities ranked by PM2.5, last 7 days.
No city has enough measurements for this window yet.
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data
Estimated: cities without a monitor
Brazil 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 |
|---|---|
| São Paulo estimated | ≈ 28 µg/m³ |
| Belo Horizonte estimated | ≈ 8 µg/m³ |
| Salvador estimated | ≈ 12 µg/m³ |
| Fortaleza estimated | ≈ 10 µg/m³ |
| Manaus estimated | ≈ 46 µg/m³ |
| Brasília estimated | ≈ 14 µg/m³ |
| Curitiba estimated | ≈ 10 µg/m³ |
| Recife estimated | ≈ 8 µg/m³ |
| Goiânia estimated | ≈ 10 µg/m³ |
| Belém estimated | ≈ 9 µg/m³ |
| Porto Alegre estimated | ≈ 12 µg/m³ |
| Guarulhos estimated | ≈ 29 µg/m³ |
| Maceió estimated | ≈ 11 µg/m³ |
| Campinas estimated | ≈ 23 µg/m³ |
| São Luís estimated | ≈ 8 µg/m³ |
| Campo Grande estimated | ≈ 9 µg/m³ |
| Natal estimated | ≈ 9 µg/m³ |
| Teresina estimated | ≈ 11 µg/m³ |
| Nova Iguaçu estimated | ≈ 22 µg/m³ |
| São Bernardo do Campo estimated | ≈ 29 µg/m³ |
| João Pessoa estimated | ≈ 8 µg/m³ |
| Sorocaba estimated | ≈ 14 µg/m³ |
| Uberlândia estimated | ≈ 9 µg/m³ |
| Osasco estimated | ≈ 28 µg/m³ |
| São José dos Campos estimated | ≈ 11 µg/m³ |
| Ribeirão Preto estimated | ≈ 33 µg/m³ |
| Aracaju estimated | ≈ 8 µg/m³ |
| Joinville estimated | ≈ 9 µg/m³ |
| Santo André estimated | ≈ 29 µg/m³ |
| Jaboatão dos Guararapes estimated | ≈ 16 µg/m³ |
| Contagem estimated | ≈ 8 µg/m³ |
| Cuiabá estimated | ≈ 10 µg/m³ |
| Feira de Santana estimated | ≈ 11 µg/m³ |
| Londrina estimated | ≈ 19 µg/m³ |
| Porto Velho estimated | ≈ 26 µg/m³ |
| Juiz de Fora estimated | ≈ 9 µg/m³ |
| Ananindeua estimated | ≈ 8 µg/m³ |
| Aparecida de Goiânia estimated | ≈ 10 µg/m³ |
| Serra estimated | ≈ 8 µg/m³ |
| Belford Roxo estimated | ≈ 22 µg/m³ |
Updated 2026-10-01 06:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.