SmogRank / World / South America / Brazil / Paraná
Most polluted cities in Paraná, Brazil
No city in Paraná, Brazil has enough readings to rank so far this year.
A city joins this ranking with enough days of readings so far this year; none here has that right now, so there is nothing to map or chart.
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
Paraná 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 |
|---|---|
| Curitiba | ≈ 7 µg/m³ |
| Londrina | ≈ 18 µg/m³ |
| Maringá | ≈ 18 µg/m³ |
| Cascavel | ≈ 11 µg/m³ |
| São José dos Pinhais | ≈ 7 µg/m³ |
| Foz do Iguaçu | ≈ 10 µg/m³ |
| Ponta Grossa | ≈ 8 µg/m³ |
| Colombo | ≈ 6 µg/m³ |
| Guarapuava | ≈ 7 µg/m³ |
| Araucária | ≈ 7 µg/m³ |
| Toledo | ≈ 11 µg/m³ |
| Paranaguá | ≈ 6 µg/m³ |
| Fazenda Rio Grande | ≈ 7 µg/m³ |
| Campo Largo | ≈ 7 µg/m³ |
| Apucarana | ≈ 13 µg/m³ |
| Arapongas | ≈ 13 µg/m³ |
| Umuarama | ≈ 11 µg/m³ |
| Almirante Tamandaré | ≈ 6 µg/m³ |
| Piraquara | ≈ 7 µg/m³ |
| Sarandi | ≈ 18 µg/m³ |
| Pinhais | ≈ 7 µg/m³ |
| Cambé | ≈ 18 µg/m³ |
| Campo Mourão | ≈ 14 µg/m³ |
| Francisco Beltrão | ≈ 10 µg/m³ |
| Paranavaí | ≈ 16 µg/m³ |
| Pato Branco | ≈ 9 µg/m³ |
| Cianorte | ≈ 15 µg/m³ |
| Telêmaco Borba | ≈ 9 µg/m³ |
| Rolândia | ≈ 18 µg/m³ |
| Castro | ≈ 8 µg/m³ |
| Irati | ≈ 7 µg/m³ |
| União da Vitória | ≈ 6 µg/m³ |
| Marechal Cândido Rondon | ≈ 11 µg/m³ |
| Palmas | ≈ 5 µg/m³ |
| Ibiporã | ≈ 18 µg/m³ |
| Prudentópolis | ≈ 9 µg/m³ |
| Cornélio Procópio | ≈ 21 µg/m³ |
| São Mateus do Sul | ≈ 7 µg/m³ |
| Medianeira | ≈ 10 µg/m³ |
| Lapa | ≈ 7 µg/m³ |
Updated 2026-10-11 17:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).