SmogRank / History / City race
Cities in Slovakia, worst air first, day by day
Each measured city's average over the 30 days to every day since January 2023, worst first. Find your own city to follow it through the race, or keep to one country.
The worst cities in Slovakia for PM2.5 over the 30 days to 17 Jun 2024: Krompachy 12.6 µg/m³, Prešov 11.5 µg/m³ and Humenné 11.5 µg/m³.
- 1KrompachyKošice Region12.6
- 2PrešovPrešov Region11.5
- 3HumennéPrešov Region11.5
- 4PúchovTrenčín Region11.4
- 5ČaňaKošice Region11.0
- 6KomárnoNitra Region10.9
- 7TrnavaTrnava Region10.1
- 8Veľká LomnicaPrešov Region10.0
- 9KošiceKošice Region9.7
- 10SenecBratislava Region9.7
- 11TrebišovKošice Region9.6
- 12ŽarnovicaBanská Bystrica Region9.6
- 13PezinokBratislava Region9.5
- 14SereďTrnava Region9.4
- 15KolárovoNitra Region9.1
- 16Vranov nad TopľouPrešov Region8.9
- 17NitraNitra Region8.9
- 18BratislavaBratislava Region8.9
- 19ŽilinaŽilina Region8.8
- 20PopradPrešov Region8.7
+ 20 more cities, 8.6 µg/m³ and below
Cities counted each day
A city's number is its average over the 30 days, shown only when 21 of them were measured (5 of 7 on the 7-day race), the same minimum as the 30- and 7-day boards. A city whose monitors go quiet fades out where it stood rather than sliding down, so a gap never reads as cleaner air. Some large countries are thin or missing because their monitors' licences don't allow reuse. How we rank.
Not covered: the government monitoring networks of China and Turkey, which publish only on their own websites; we are building the readers for them. Most cities there are missing from this board, not clean. Why.