Singapore haze: 7 takeaways from press conference – from school contingency plans to mask supplies

Singapore haze: 7 takeaways from press conference – from school contingency plans to mask supplies


3. Check PSI forecasts before planning activities, PM2.5 readings before heading out

People in Singapore should use both the 24-hour PSI and 1-hour PM2.5 readings to guide their activities, Ms Fu said.

The 24-hour PSI provides a picture of air quality over a longer period and is useful for assessing sustained exposure, while the one-hour PM2.5 reading reflects more immediate conditions.




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