Key facts
- Singapore's air quality reached unhealthy levels on Tuesday.
- The Pollutant Standards Index (PSI) registered 101.
- The haze is caused by wildfires in Indonesia.
- Dry conditions and prevailing winds are contributing to the haze.
- Residents are advised to limit outdoor activities.
Air quality across Singapore reached unhealthy levels on Tuesday, with the Pollutant Standards Index (PSI) climbing to 101. The haze is primarily attributed to wildfires raging in Indonesia, exacerbated by dry weather conditions and prevailing winds. Authorities are closely monitoring the situation and have advised residents to limit prolonged or strenuous outdoor activities. The PSI is a measure of air pollution used in Singapore, with readings between 101 and 200 classified as unhealthy.