SmogRank / History / City race
Cities in Singapore, 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 Singapore for PM2.5 over the 30 days to 22 Sep 2023: Ulu Bedok 20.3 µg/m³, Ang Mo Kio New Town 18.1 µg/m³ and Queenstown Estate 14.3 µg/m³.
- 1Ulu BedokSingapore20.3
- 2Ang Mo Kio New TownSingapore18.1
- 3Queenstown EstateSingapore14.3
- 4WoodlandsSingapore10.9
- 5Jurong WestSingapore10.0
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.