Breathable air – A basic need I didn’t appreciate till last week
The worst haze since 1997 is choking us all up in Singapore. At 12 noon on Friday 21st June, the Pollutant Standard’s Index hit 401 in Singapore, the highest in Singapore’s history. The PSI, which measure sulphur dioxide, nitrogen dioxide, carbon monoxide, ozone and particulate matter of 10 microns or less in the atmosphere, exceeded … Continue reading