Haze clouds Singapore as 3-hour PSI crosses 100 into unhealthy range
SINGAPORE - The sky was noticeably greyer than usual on Friday, with the Pollution Standards Index creeping into the unhealthy range in the afternoon.
The three-hour PSI was 65 at around 8am, and it had gone up steadily through the day, reaching 104 at 5pm.
In a statement issued to The Straits Times at 3.28pm, the National Environment Agency (NEA) said: "The slight haziness could be due to the accumulation of particulate matter in the air under light wind conditions."
"The situation is expected to improve with the strengthening of the winds later in the day," it added.
The 24-hour PSI at 5pm was between 69 and 92, with the highest reading of 92 recorded in the east of Singapore.
It was 78 in the west, and between 69 and 71 in other parts of Singapore.
Members of the public are advised to avoid prolonged or strenuous outdoor activities when air quality is in the unhealthy range.
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