SmogRank / Countries / Brazil / January 2023
Most polluted cities in Brazil, January 2023
11 cities in Brazil ranked by their average PM2.5 over the 31 days. Worst: Paulínia at 11.0 µg/m³, #226 of 849 cities in the world. Cleanest: São José do Rio Preto at 6.1. A city needs measurements on 70% of the days to be ranked.
- 1PaulíniaSão Paulo 11.0
- 2São PauloSão Paulo 10.8
- 3Santo AndréSão Paulo 10.0
- 4CampinasSão Paulo 8.9
- 5Rio ClaroSão Paulo 8.3
- 6JundiaíSão Paulo 7.8
- 7GuaratinguetáSão Paulo 7.7
- 8TaubatéSão Paulo 7.3
- 9Ribeirão PretoSão Paulo 6.9
- 10São José dos CamposSão Paulo 6.4
- 11São José do Rio PretoSão Paulo 6.1
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+
All cities in the world, January 2023 · Brazil now
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SmogRank, most polluted cities in Brazil, PM2.5, January 2023, smogrank.com/br/history/2023-01 (accessed 2 Oct 2026).
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