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Pollutant Standards Index
Trends
- 1Haze pushes Singapore's PSI into unhealthy range●Haze in S’pore: PSI remains in unhealthy range in central region
Air quality in Singapore has deteriorated, with the Pollutant Standards Index staying in the unhealthy range in the central region. Residents are tracking PSI readings closely as haze conditions persist, raising concerns about outdoor activities and health precautions, particularly for children, the elderly and those with respiratory conditions.
- 2Singapore haze eases as air quality returns to moderate levels●Haze in S’pore: Air quality returns to moderate levels
Singapore's air quality has improved, with the Pollutant Standards Index returning to moderate levels after a period of haze. Residents have been closely monitoring readings as smoke haze affected the island. The improvement brings relief, though authorities typically continue advising the public, especially vulnerable groups, to check updates and limit prolonged outdoor activity if conditions deteriorate again.
- 3psi▼
PSI, the Pollutant Standards Index, is Singapore's official air-quality measure, and searches for it have surged. A haze update from AsiaOne reports that air quality in central Singapore has turned unhealthy, which fits the pattern of people checking the index to see whether it is safe to go outside, exercise, or send children to school. Singapore experiences seasonal haze, often linked to forest fires in neighbouring Indonesia, so the term typically spikes whenever readings deteriorate.