SmogRank / History / City race
Cities, 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 for PM2.5 over the 30 days to 14 Feb 2026: Kojomkul 209.3 µg/m³, Siddharthanagar 190.7 µg/m³ and Faisalabad 182.0 µg/m³.
- 1KojomkulKyrgyzstan209.3
- 2SiddharthanagarNepal190.7
- 3FaisalabadPakistan182.0
- 4BahawalpurPakistan157.2
- 5GujranwalaPakistan157.0
- 6DelhiIndia152.8
- 7LahorePakistan151.5
- 8GurugramIndia149.1
- 9SialkotPakistan146.6
- 10BawānaIndia145.2
- 11MultanPakistan141.2
- 12LebedinovkaKyrgyzstan140.3
- 13SingrauliIndia131.4
- 14PeshawarPakistan129.2
- 15NoidaIndia120.6
- 16Dera MāndiIndia114.2
- 17DhāruheraIndia113.5
- 18BishkekKyrgyzstan108.5
- 19BhiwadiIndia106.3
- 20GummidipundiIndia106.2
+ 3,069 more cities, the next at 100.8 µg/m³
Not counted on this day, too few days measured: Ropar since 20 Jan 2026, Nohan since 20 Jan 2026, Muzaffarnagar since 20 Jan 2026 and 14 more cities.
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, Turkey and Iran, which publish only on their own websites. We are building the reader for China's network. The networks of Turkey and Iran don't answer requests from outside their countries, so we can't read them. Most cities there are missing from this board, not clean. Why.