SINGAPORE – Air quality over the next 24 hours from 6pm on Sept 6 is forecast to continue to range from the higher end of the moderate category to the lower end of the unhealthy spectrum.
The National Environment Agency (NEA) said in an advisory on Sept 6 that as at 6pm that day, the 24-hour Pollutant Standards Index (PSI) was in the moderate range of 73 to 87.
The 24-hour PSI for the central region dipped to 87 at 6pm on Sept 6, after reaching unhealthy levels the previous night with a high of 103 at 7pm on Sept 5, according to NEA’s website.
Readings in the north (73), south (74), east (86) and west (83) also remained in the moderate range as at 6pm on Sept 6.
Air quality is considered unhealthy when the PSI is in the range of 101 to 200, during which the public is advised to cut down on outdoor activities.
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