Haze worsens overnight as air quality turns unhealthy across Singapore新加坡空气质量恶化，一夜之间雾霾加剧，空气质量恶化至不健康水平。
Showers are forecast over Singapore and the surrounding region on Saturday, said NEA, although smoke haze could continue to be transported from Sumatra.
Showers are forecast over Singapore and the surrounding region on Saturday, said NEA, although smoke haze could continue to be transported from Sumatra.
A view of the haze from Chinatown at 3.40pm on Oct 23, 2026. (Photo: CNA/Ooi Boon Keong)
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SINGAPORE: Air quality worsened overnight, with the 24-hour Pollutant Standards Index (PSI) reaching the unhealthy range across all five regions early on Saturday (Oct 24).
At 6am, the PSI ranged from 112 to 139, with the highest reading recorded in the west.
Hourly PM2.5 concentrations were also elevated islandwide, ranging from 72 in the east to 115 in the west.
In its forecast, the National Environment Agency (NEA) said the PSI for Saturday was expected to range from 90 to 140, spanning the moderate and unhealthy categories.
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Air quality gradually deteriorated on Friday , when the western and central regions were the first to enter the unhealthy range.
NEA said on Friday that smoke haze from Sumatra had been observed drifting towards Singapore, while smoke haze was also detected over Kalimantan.
Dry conditions had persisted over Singapore, contributing to the deterioration in air quality.
On Saturday, showers are forecast over Singapore and the surrounding region, although smoke haze could continue to be transported from Sumatra under prevailing south-southeasterly or south-southwesterly winds.
Conditions could improve from Sunday, when winds are expected to shift to blow from the southwest or west, potentially reducing the amount of smoke haze transported towards Singapore.
Showers over Singapore and nearby areas could also help ease the situation.
However, the broader regional haze situation remains a concern.
According to the regional weather and haze assessment published on Friday, scattered hotspots were detected in southern Sumatra and Kalimantan, while moderate to dense transboundary smoke haze was observed over Singapore and parts of the surrounding region.
NEA has advised the public to refer to the 24-hour PSI forecast when planning outdoor activities and to check the latest 1-hour PM2.5 readings before undertaking immediate outdoor activities.
When hourly PM2.5 concentrations are in the elevated band, healthy individuals should reduce strenuous outdoor activities for the next hour.
Vulnerable groups, including children, elderly people, pregnant women and those with chronic heart or lung conditions, should avoid strenuous outdoor activities during that period.
For planning activities on Saturday, NEA advised healthy individuals to reduce prolonged or strenuous outdoor physical exertion, while elderly people, pregnant women and children should minimise such activities.
People with chronic heart or lung disease should avoid prolonged or strenuous outdoor physical exertion.
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新加坡国家环境局表示，预计周六新加坡及其周边地区将有阵雨，但烟雾可能仍会从苏门答腊岛飘来。
2026年10月23日下午3点40分，从唐人街看到的雾霾景象。（图片：CNA/Ooi Boon Keong）
这段音频由人工智能工具生成。
新加坡：空气质量一夜之间恶化，周六（10 月 24 日）清晨，所有五个地区的 24 小时污染物标准指数 (PSI) 均达到不健康范围。
早上 6 点，PSI 值在 112 到 139 之间，其中西部地区的读数最高。
全岛PM2.5小时浓度也偏高，东部地区为72，西部地区为115。
国家环境局 (NEA) 在其预测中表示，周六的空气污染指数 (PSI) 预计将在 90 到 140 之间，涵盖中等和不健康类别。
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周五，空气质量逐渐恶化，西部和中部地区率先进入不健康范围。
新加坡国家环境局周五表示，已观测到苏门答腊岛的烟霾飘向新加坡，同时加里曼丹岛上空也检测到了烟霾。
新加坡持续干旱，导致空气质量恶化。
周六，新加坡及周边地区预计将有阵雨，但受盛行的东南偏南风或西南偏南风的影响，苏门答腊岛的烟霾可能会继续飘来。
从周日开始，情况可能会有所改善，预计风向将转为西南风或西风，这可能会减少向新加坡输送的烟霾量。
新加坡及周边地区的降雨也可能有助于缓解局势。
然而，更广泛的区域性雾霾情况仍然令人担忧。
根据周五发布的区域天气和雾霾评估报告，苏门答腊南部和加里曼丹南部检测到零星热点，而新加坡及其周边地区部分地区观测到中度至重度跨境烟霾。
国家环境局建议公众在计划户外活动时参考 24 小时空气污染指数预报，并在进行户外活动前查看最新的 1 小时 PM2.5 读数。
当每小时 PM2.5 浓度处于较高水平时，健康人群应在接下来的一个小时内减少剧烈的户外活动。
包括儿童、老年人、孕妇以及患有慢性心脏或肺部疾病的人在内的弱势群体，在此期间应避免进行剧烈的户外活动。
为规划周六的活动，国家环境局建议健康人士减少长时间或剧烈的户外体力活动，而老年人、孕妇和儿童则应尽量减少此类活动。
患有慢性心脏病或肺病的人应避免长时间或剧烈的户外体力活动。
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