Air quality in Singapore still unhealthy as haze persists

Hazy conditions seen from the Clementi area at about 8.35am on Oct 11.

ST PHOTO: KELVIN CHNG

Published Oct 12, 2026, 06:15 AM

Updated Oct 12, 2026, 06:15 AM

SINGAPORE – The air quality across the island remained largely unchanged early on Oct 12, with the 24-hour PSI continuing to lie in the unhealthy range. At 6am on Oct 12, the PSI readings stood at 105 in the north, 118 in the south, 137 in the east, 147 in the west and 148 in the central region.

Air quality is considered unhealthy when the PSI – a 24-hour rolling average of six key air pollutants – is in the range of 101 to 200.

One-hour PM2.5 readings, which had fluctuated between normal and elevated levels on Oct 11, were in the elevated band for all regions at 6am on Oct 12 – 57 in the north, 77 in the south, 75 in the east, 94 in the west and 84 in the central region. The hourly PM2.5 reading – measured in micrograms per cubic m – is used as a gauge for current air quality, with scores from 0 to 55 representing normal values while 56 to 150 indicate elevated pollution levels.

In its daily advisory issued in the evening on Oct 11, the National Environment Agency (NEA) said the 24-hour PSI was forecast to be in the unhealthy range. “Smoke haze from southern Sumatra and West Kalimantan was observed to drift towards Singapore,” it noted. It added that showers are forecast over Singapore and parts of the surrounding region.

However, dry conditions are expected to continue over parts of southern Sumatra and Kalimantan.

“Under the prevailing south-easterly or southerly winds, smoke haze may continue to drift towards Singapore,” NEA added. The PSI reached a peak for 2026 on Oct 9 , reaching 192 in the central region between 5pm and 8pm.

The highest hourly PM2.5 reading to date in 2026 was recorded in the west at 2am on Oct 9, peaking at 171.

The government’s haze task force announced a series of measures on Oct 9 should the PSI exceed 200 and move into the very unhealthy range. Air quality in Singapore breached unhealthy levels for the first time since October 2023 on Sept 4, 2026.

National Environment Agency

10月11日上午8点35分左右，金文泰地区出现雾霾天气。

《海峡时报》摄影：KELVIN CHNG

发布于 2026 年 10 月 12 日上午 6:15

更新于2026年10月12日 上午6:15

新加坡——10月12日清晨，全岛空气质量基本保持不变，24小时空气污染指数（PSI）持续处于不健康水平。10月12日早上6点，北部地区空气污染指数为105，南部地区为118，东部地区为137，西部地区为147，中部地区为148。

当 PSI（六种主要空气污染物的 24 小时滚动平均值）在 101 到 200 之间时，空气质量被认为是不健康的。

10月11日，PM2.5一小时读数在正常和偏高水平之间波动；10月12日早上6点，所有地区的PM2.5读数均处于偏高水平——北部地区为57微克/立方米，南部地区为77微克/立方米，东部地区为75微克/立方米，西部地区为94微克/立方米，中部地区为84微克/立方米。PM2.5小时读数（单位为微克/立方米）用于衡量当前空气质量，0至55微克/立方米代表正常值，56至150微克/立方米则表示污染水平偏高。

新加坡国家环境局（NEA）在10月11日晚间发布的每日空气质量预警中指出，预计24小时空气污染指数（PSI）将处于不健康水平。预警指出：“来自苏门答腊南部和西加里曼丹的烟雾正向新加坡飘移。” 预警还补充说，预计新加坡及其周边部分地区将有阵雨。

然而，预计苏门答腊南部和加里曼丹部分地区仍将持续干旱。

国家环境局补充说：“在盛行的东南风或南风影响下，烟霾可能会继续向新加坡飘移。” 10月9日，新加坡中部地区的空气污染指数（PSI）在下午5点至晚上8点之间达到2026年的峰值192。

2026 年迄今为止最高的 PM2.5 小时读数于 10 月 9 日凌晨 2 点在西部地区记录，峰值达到 171。

政府雾霾工作组于10月9日宣布了一系列措施，以应对空气污染指数（PSI）超过200并进入“非常不健康”级别的情况。新加坡的空气质量于2026年9月4日突破了自2023年10月以来的“不健康”级别。

国家环境局