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During periods of haze, you can use the health advisory, air quality forecast, 1-hr PM2.5 and daily PSI readings to plan your schedule.
Oct 2, 2019 · There are four bands on the PM2.5 concentration scale: 0 to 55 for normal, 56 to 150 for elevated, 151 to 250 for high, and very high for any higher readings. A 24-hour PSI reading of between 51...
Quick updates at a glance on PSI and PM2.5 readings for the haze situation in Singapore.
Oct 9, 2023 · The 24-hour Pollutant Standards Index (PSI) readings ranged between 67 and 123 at 9pm, with the highest recorded reading in the east. A PSI reading of 101 to 200 is in the unhealthy range, for...
Oct 6, 2023 · At of 4pm, the 24-hour Pollutant Standards Index (PSI) for the eastern and central regions of Singapore were 119 and 110 respectively. The National Environment Agency (NEA) regards a reading of...
In general, a healthy individual who has to be outdoors for several hours may wear a N95 mask to reduce exposure when the forecasted air quality is in the Hazardous range (PSI >300), although the first line of action to avoid haze exposure would be to limit time spent outdoors.
Jun 8, 2023 · A 24-hour Pollutant Standards Index (PSI) reading of between 101 and 200 is considered unhealthy. The index measures six pollutants and is used as an indicator of air quality. People...
