{"id":95642,"date":"2026-10-26T10:01:02","date_gmt":"2026-10-26T02:01:02","guid":{"rendered":"https:\/\/sgbuzz.com\/?p=95642"},"modified":"2026-10-26T10:01:02","modified_gmt":"2026-10-26T02:01:02","slug":"haze-in-singapore-normal-pm2-5-readings-and-good-to-moderate-24-hour-psi-islandwide","status":"publish","type":"post","link":"https:\/\/sgbuzz.com\/?p=95642","title":{"rendered":"Haze in Singapore: Normal PM2.5 readings and good to moderate 24-hour PSI islandwide"},"content":{"rendered":"


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SINGAPORE \u2013 The air quality here has improved after the hourly PM2.5 readings remained in the normal range and the 24-hour PSI stayed in the good to moderate band across the island overnight into the morning of Oct 26.<\/p>\n

At 7am, the one-hour PM2.5 readings in all the five regions of Singapore ranged between 20 and 33 while the 24-hour PSI stood at 69 to 76.<\/p>\n

PM2.5 readings<\/span><\/a> are gauged hourly and reflect the current air quality. Scores from zero to 55 represent normal values, and those between 56 and 150 indicate an elevated concentration of fine particles.<\/p>\n

Air quality is considered good to moderate when the PSI \u2013 a 24-hour rolling average of six key air pollutants \u2013 is in the range of zero to 100, and unhealthy when it is in the range of 101 to 200.<\/p>\n

When air quality breaches the \u201cunhealthy\u201d threshold, people, especially the elderly, children and those with health issues, should start scaling down outdoor activities.<\/p>\n