Haze improves, air quality in moderate range
The hazy conditions that persisted overnight yesterday (Oct 11) has eased today due to a change in the prevailing wind direction and showers over parts of Singapore in the late afternoon, and the National Environment Agency (NEA) expects conditions to improve tonight and tomorrow.
The haze in Singapore as seen from Marina Bay at 4.30pm on Oct 6, 2014. Photo: Ooi Boon Keong
The hazy conditions that persisted overnight yesterday (Oct 11) has eased today due to a change in the prevailing wind direction and showers over parts of Singapore in the late afternoon, and the National Environment Agency (NEA) expects conditions to improve tonight and tomorrow.
At 6pm today, the 1-hr concentrations of PM2.5 were 27 - 58 ug/m3, and the 24-hr PSI was 86 -100, in the moderate range.
NEA said prevailing winds are forecast to be light and variable in direction tonight and tomorrow. However as there is smoke haze from the region still around Singapore, hazy conditions can still be expected from time to time. Thundery showers are also expected tomorrow in the afternoon, it added.
The overall 24-hr Pollutant Standards Index (PSI) for Singapore is expected to be in the high-end of the moderate range and the low-end of the unhealthy range.
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