Haze in Singapore: PSI forecast to remain in unhealthy to high unhealthy range

A hazy Singapore skyline seen from the Marina Bay Street Circuit at 5pm on Oct 10.

ST PHOTO: CHONG JUN LIANG

Published Oct 10, 2026, 07:40 PM

Updated Oct 10, 2026, 07:41 PM

NEA said Singapore’s 24-hour PSI for Oct 11 should stay in the “unhealthy to high unhealthy range”, as smoke from Sumatra and Kalimantan drifts in.

PSI and PM2.5 levels stayed unhealthy across the island, with the central region peaking at 176 and officials urging people to cut outdoor activity, especially vulnerable groups.

If haze worsens, the government will hand out N95 masks, stop outdoor preschool activities, and may close schools if PSI goes above 300; the F1 Grand Prix plans no changes.

SINGAPORE – The 24-hour Pollutant Standards Index (PSI) for Oct 11 is forecast to be in the “unhealthy to high unhealthy range” , staying out of the “very unhealthy” range of 201 to 300 .

In the National Environment Agency’s (NEA) daily advisory issued at 7pm on Oct 10, the agency noted: “Moderate to dense smoke haze from southern Sumatra was observed to drift towards Singapore. Smoke haze was also observed in many parts of Kalimantan.”

It added that the haze will continue to drift towards Singapore under prevailing east-south-easterly or southerlywinds.

This marks a slight improvement from the previous day , when NEA forecasted an “unhealthy to low very unhealthy range”.

As at 7pm on Oct 10, however, the PSI reading had not entered the “very unhealthy” band. Readings on the day peaked at 176 in the central region, with the reading in the region being 168 at 7pm.

In other regions, the 24-hour PSI readings also hovered at unhealthy levels, measuring 118 in the north, 128 in the south, 150 in the east and 152 in the west.

The haze stems from forest and land fires in Sumatra and Kalimantan , largely driven by the use of fire to clear land for agriculture.

Fuelled by the ongoing El Nino, these dried-out peatlands can burn for weeks once ignited and are notoriously difficult to put out.

Reduce outdoor physical activities

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.

Under unhealthy 24-hour PSI readings, healthy individuals should reduce prolonged or strenuous outdoor physical activities, according to the haze advisory.

Vulnerable people – including the elderly, pregnant women, children and those with chronic lung or heart disease – should minimise or avoid such activities entirely.

The PSI reached a peak for 2026 on Oct 9, reaching 192 in the central region between 5pm and 8pm.

Meanwhile, the PM2.5 readings remained in the elevated band across the island as at 7pm, registering 63 in the north, 72 in the south, 73 in the east, 98 in the west and 107 in the central.

The reading in the central region briefly crossed into the ‘high’ band at 151 at 3pm, before easing back to 142 in the elevated band by 4pm.

An hourly PM2.5 reading – used to plan for activities within the next hour – between 56 and 150 indicates an elevated concentration of fine particles, while that between 151 and 250 is considered high.

The highest PM2.5 reading so far this haze season, 171, was recorded in the west on Oct 9.

When air quality falls into the elevated band, the public is advised to cut back on strenuous outdoor activities for the immediate hour, whereas those in the high band call for avoiding such activities altogether.

Measures to be taken if situation worsens

The government’s haze task force announced a series of measures on Oct 9 should the 24-hour PSI exceed 200 and move into the very unhealthy range.

For one, N95 masks will be distributed to eligible Singaporeans who may be more vulnerable to the effects of haze or who may have limited means of obtaining them.

The masks will be available at PA venues and vending machines at 37 public transport hubs and social services offices.

Those eligible to collect N95 masks include the Pioneer Generation, Merdeka Generation, CHAS orange and blue card holders, and children aged between seven and 16.

All preschools will also be required to cease all outdoor activities and strenuous indoor activities.

Children with chronic heart and lung conditions will be exempted from all indoor physical activities.

In a Facebook post on the evening of Oct 10, Education Minister Desmond Lee said lessons and national examinations will continue in enclosed venues with air purifiers, and schools are ready to step up measures if needed.

Should next-day forecasts enter the hazardous range with a 24-hour PSI exceeding 300, the Ministry of Education (MOE) may consider school closures and the postponement of national examinations, Lee added.

Any such closures will be announced by 8pm the day before through schools and MOE’s official channels.

Meanwhile, sports organisers and facility operators were urged to consider modifying or suspending activities held outdoors and in non-air-conditioned facilities.

Despite the haze, race promoters for the Formula 1 Singapore Airlines Singapore Grand Prix – taking place from Oct 9 to Oct 11 – have said that there are no plans to modify its entertainment activities.

Ann Neo is with ST Now, the desk that covers breaking and trending news for The Straits Times.

National Environment Agency

10 月 10 日下午 5 点，从滨海湾街赛道看到的朦胧的新加坡天际线。

《海峡时报》照片：梁崇俊

发布于2026年10月10日晚上7:40

更新于2026年10月10日晚上7:41

新加坡国家环境局表示，由于苏门答腊岛和加里曼丹岛的烟雾飘入，新加坡 10 月 11 日的 24 小时空气污染指数 (PSI) 应保持在“不健康至高度不健康”的范围内。

全岛空气污染指数（PSI）和PM2.5水平持续处于不健康状态，中部地区最高达到176，官员敦促人们减少户外活动，尤其是弱势群体。

如果雾霾加剧，政府将发放 N95 口罩，停止户外学前活动，如果 PSI 超过 300，可能会关闭学校；F1 大奖赛计划不作任何改变。

新加坡——预计 10 月 11 日的 24 小时污染物标准指数 (PSI) 将在“不健康至高度不健康范围”内，不会进入 201 至 300 的“非常不健康”范围。

新加坡国家环境局（NEA）在10月10日晚上7点发布的每日公告中指出：“观测到来自苏门答腊南部的中度至重度烟霾向新加坡飘移。加里曼丹许多地区也观测到了烟霾。”

报告还指出，在盛行的东南风或南风的影响下，雾霾将继续向新加坡方向飘移。

这比前一天略有改善，当时国家环境局预测的空气质量为“不健康至非常不健康”。

然而，截至10月10日晚上7点，PSI指数尚未进入“非常不健康”的区间。当天中部地区的PSI指数峰值达到176，晚上7点该地区的指数为168。

在其他地区，24 小时 PSI 读数也徘徊在不健康的水平，北部为 118，南部为 128，东部为 150，西部为 152。

雾霾源于苏门答腊岛和加里曼丹岛的森林和土地火灾，这主要是由于人们为了开垦农田而使用火烧造成的。

受厄尔尼诺现象持续影响，这些干涸的泥炭地一旦着火，就能燃烧数周，而且极难扑灭。

减少户外活动

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。

根据雾霾预警，当 24 小时 PSI 读数不健康时，健康人群应减少长时间或剧烈的户外体育活动。

弱势群体——包括老年人、孕妇、儿童以及患有慢性肺病或心脏病的人——应尽量减少或完全避免此类活动。

2026 年 10 月 9 日，PSI 指数达到峰值，中部地区下午 5 点至晚上 8 点达到 192。

与此同时，截至晚上 7 点，全岛 PM2.5 读数仍处于较高水平，北部为 63，南部为 72，东部为 73，西部为 98，中部为 107。

下午 3 点，中心区域的读数短暂地进入了“高”区间，达到 151，然后到下午 4 点回落到较高区间的 142。

PM2.5 每小时读数（用于规划下一小时的活动）在 56 到 150 之间表示细颗粒物浓度升高，而 151 到 250 之间则被认为是高浓度。

截至目前，本雾霾季最高的 PM2.5 读数为 171，于 10 月 9 日在西部地区记录。

当空气质量降至较高水平时，建议公众在一小时内减少剧烈的户外活动；而当空气质量降至极高水平时，则建议完全避免此类活动。

如果情况恶化，应采取以下措施

政府雾霾工作组于 10 月 9 日宣布了一系列措施，以应对 24 小时 PSI 值超过 200 并进入非常不健康范围的情况。

首先，N95口罩将分发给符合条件的、可能更容易受到雾霾影响或可能难以获得口罩的新加坡人。

口罩将在公共机构场所和 37 个公共交通枢纽及社会服务办公室的自动售货机提供。

有资格领取 N95 口罩的人群包括建国一代、独立一代、CHAS 橙色和蓝色卡持有者，以及 7 至 16 岁的儿童。

所有幼儿园也必须停止所有户外活动和剧烈的室内活动。

患有慢性心脏和肺部疾病的儿童将免于参加所有室内体育活动。

教育部长李智陞在10月10日晚间于Facebook上发帖称，课程和全国考试将在配备空气净化器的封闭场所继续进行，学校也已做好准备，如有需要将加强防控措施。

李补充说，如果第二天的天气预报进入危险范围，24 小时 PSI 超过 300，教育部可能会考虑关闭学校和推迟全国性考试。

任何此类停课安排都将在前一天晚上 8 点前通过学校和教育部官方渠道公布。

与此同时，体育组织者和场馆经营者被敦促考虑修改或暂停在户外和无空调场馆举行的活动。

尽管有雾霾，但将于 10 月 9 日至 11 日举行的新加坡航空一级方程式新加坡大奖赛的赛事推广方表示，没有计划改变其娱乐活动。

Ann Neo 就职于 ST Now，该部门负责报道《海峡时报》的突发新闻和热点新闻。

国家环境局