Singapore’s one-hour PM2.5 readings were within the normal band across all five regions Sunday, Oct. 25, while a separate 24-hour PSI reading from an hour earlier was unhealthy.
At 8 p.m. ET Saturday, Oct. 24 (00:00 UTC Sunday, Oct. 25; 8 a.m. SGT Sunday, Oct. 25), the National Environment Agency’s (NEA) one-hour readings ranged from 43 to 55 micrograms per cubic meter across the North, South, East, West and Central regions. The agency’s normal band is zero to 55 micrograms per cubic meter.
A separate NEA PSI feed snapshot at 7 p.m. ET Saturday, Oct. 24 (23:00 UTC; 7 a.m. SGT Sunday, Oct. 25) showed readings from 104 to 140 across the five regions. NEA classifies readings from 101 to 200 as unhealthy. EconoTimes previously covered unhealthy PSI readings in western and central Singapore.
The measures cover different periods. NEA points people to its PSI forecast when planning outdoor activity for the next day and to hourly PM2.5 readings when assessing immediate conditions.
Yong Tham Foo, a worker at Traditional Handmade Mee Hoon Kway, told Channel NewsAsia that the Jurong West stall took in up to 80% less over Oct. 17-18. EconoTimes previously covered the business losses during the haze.
In its Saturday, Oct. 24 advisory, NEA forecast a PSI of 80 to 130 for Sunday, Oct. 25. The agency said southwest or west winds could reduce smoke transport to Singapore, while showers may help ease haze conditions. It described haze moving toward Singapore from Sumatra and haze over Kalimantan. NEA expected southwest or west winds and showers Monday and Tuesday, Oct. 26-27, and said conditions were likely to improve.
