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This article was first published on September 4, 2026 by Straits Times — Singapore and curated for The Singapore readers.

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Air in central Singapore remains unhealthy, PSI in western and eastern regions dips to moderate

Summary by The Singapore Editorial Desk · As published by Straits Times — Singapore · September 4, 2026 · 1 min read

Photo: Straits Times — Singapore · view original

Air quality has become unhealthy in certain areas. The PSI reading in the western region reached 102, matching the central region's unhealthy air quality.

The eastern region also experienced unhealthy air quality late on Sept 4. However, the PSI reading in the East dipped to 99 on Sept 5, indicating a slight improvement.

Further details about the air quality are available from the source, providing more information on the current situation and any updates on the PSI readings.

Why this story is here

Straits Times — Singapore reported and published this story. The Singapore selected it, summarised the key facts above, and links to the original. We did not report this story and we added no reporting of our own to it.

About this story

As published by Straits Times — Singapore. The Singapore selects stories from publishers’ feeds, summarises them, and links back to the publisher that reported them. We add no reporting of our own. We attribute every source, link to the original report, and follow a documented editorial standards policy. To understand how stories are selected and reviewed, read our about page.

For the complete original report, visit Straits Times — Singapore. Have a tip or correction? Contact the editor.

Category: library · Published: September 4, 2026 · Source: Straits Times — Singapore · Reading time: 1 min

Summary created by	The Singapore Editorial Desk — automated, rule-governed
Published by	Straits Times — Singapore
Original story	Read at the source
Source published	Sep 4, 2026
Indexed here	Sep 5, 2026
AI assistance	Automated summary drawn from the source’s own published text
Prepublication human review	No — editorial rules, flagged-item review, and published samples

Air in central Singapore remains unhealthy, PSI in western and eastern regions dips to moderate

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