Air pollution

ST Explains

PSI or PM2.5? What air quality measures should I refer to when there is haze?

A hazy city skyline as seen from Gardens by the Bay at 4.50pm on Aug 24.

Malaysia urges ASEAN nations to act as haze pushes pollution readings to unhealthy levels

Malaysia has urged ASEAN member states to step up preventive measures and preparedness against transboundary haze.

Schools in several Sarawak districts to close for two days over haze

This is the second time in two weeks that schools in Sarawak have been closed due to the haze.

One area in Selangor records unhealthy air quality, 58 others in Malaysia at moderate level

A general view of the city skyline blanketed in haze, in Kuala Lumpur on Aug 13.

Penang ready to step up measures as air quality hits unhealthy level

The state’s chief minister said this includes sending out advisories to stop or suspend activities.

Air quality in parts of Sarawak hits unhealthy level

A hazy view of Serian, Sarawak, located around 60km from the city of Kuching.

Unhealthy air quality hits seven areas in Sarawak, Selangor

The view around Kuching City in Sarawak shrouded in haze.

Smoke from France industrial waste fire confines 30,000 indoors

A French firefighter sprays water with a truck at an industrial warehouse in the north-eastern French village of Gandrange on Aug 2. The fire spewed foul smoke that gave residents headaches.

Trump blames Canada for wildfire smoke, says he’ll add cost to tariffs

Heavy smoke from hundreds of Canadian fires enveloped a swathe of the US from the Midwest to the Northeast on July 16 and 17, including Washington DC.

NEA monitoring air quality after smell of gas detected in parts of central Singapore

The NEA said it began receiving feedback on the smell from areas including Tanjong Rhu, Kallang and Novena at around 11pm on July 16.

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MDDI (P) 046/10/2025. Published by SPH Media Limited, Co. Regn. No.202120748H. Copyright © 2026 SPH Media Limited. All rights reserved.