Haze in Singapore: Air quality returns to unhealthy range
Singapore's air quality has returned to the unhealthy range due to smoke haze drifting from fires in Sumatra and Kalimantan. The National Environment Agency warns that dry conditions and prevailing winds may keep air quality in the unhealthy range for the near future.
Why it matters
Transboundary haze is a recurring environmental and public health issue in Southeast Asia that impacts millions of residents.
Hazy conditions seen from Clementi at about 7.10am on Oct 5.
Listen SINGAPORE – The air quality in parts of Singapore dipped back into the unhealthy range again early on Oct 5, with the 24-hour PSI reading at 6am in the central region standing at 110 and the west at 102.
PM2.5 readings, which are used as a gauge for immediate activities, were elevated in two of the five regions across Singapore.
The PM2.5 stood at 93 in the central region , and 81 in the west. Readings in the north, south and east were in the normal band, ranging from 49 to 52.
Air quality is considered unhealthy when the 24-hour PSI is in the range of 101 to 200. An hourly PM2.5 reading between 56 and 150 indicates an elevated concentration of fine particles.
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