World daily air quality reports
Every day at 12:00 UTC we record the most polluted and cleanest cities in the world, from monitoring stations only. Each report stays online as a permanent record.
| Date | Most polluted | Cleanest |
|---|---|---|
| 19 October 2026 | Banjarmasin, Indonesia 277 | Sydney, Australia 6 |
| 18 October 2026 | Palembang, Indonesia 296 | Victoria de Durango, Mexico 5 |
| 17 October 2026 | Pekanbaru, Indonesia 416 | Cleveland, United States 2 |
| 16 October 2026 | Padang, Indonesia 500 | Milwaukee, United States 2 |
| 15 October 2026 | Palembang, Indonesia 500 | Buenos Aires, Argentina 6 |
| 14 October 2026 | Banjarmasin, Indonesia 500 | Wellington, New Zealand 6 |