Air quality in parts of Singapore in unhealthy range

24-hour PSI readings in central, eastern and western Singapore were in the unhealthy range at 7am, while 1-hour PM2.5 readings were also elevated in these regions.

Haze along East Coast Road on Oct 6, 2026. (Photo: CNA/Raj Nadarajan)

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SINGAPORE: Air quality in central, eastern and western Singapore remained in the unhealthy range on Wednesday (Oct 7), with hourly PM2.5 readings in the elevated band.

At 7am, the 24-hour Pollutant Standards Index (PSI) reading was 130 in central Singapore, 118 in the east and 117 in the west. The same regions also registered elevated 1-hour PM2.5 readings: 68, 61 and 85, respectively.

Meanwhile, northern and southern Singapore recorded PSI readings of 99 and 97, remaining in the moderate band.

In its Tuesday evening advisory, the National Environment Agency (NEA) said that scattered hotspots were detected in Kalimantan and Sumatra, while a few hotspots were detected elsewhere in southern Southeast Asia.

CNA Games Guess Word Crack the word, one row at a time Buzzword Create words using the given letters Mini Sudoku Tiny puzzle, mighty brain teaser Mini Crossword Small grid, big challenge Word Search Spot as many words as you can Show More Show Less Moderate to dense smoke plumes from southern Sumatra and West Kalimantan were observed drifting towards Singapore, NEA said. With dry weather forecast to persist over Kalimantan and southern and central Sumatra, as well as prevailing east-southeasterly to southeasterly winds, smoke haze is likely to continue drifting to Singapore. The 24-hour PSI in Singapore is forecast to be in the high moderate to mid unhealthy range, NEA said. When planning outdoor activities for the next 24 hours, the public is advised to use the 24-hour PSI forecast and health advisories. When 1-hour PM2.5 levels are elevated, healthy people are advised to reduce strenuous outdoor activity for the next hour, while the elderly, pregnant women, children and people with chronic heart or lung conditions should avoid such activity.

Moderate to dense smoke plumes from southern Sumatra and West Kalimantan were observed drifting towards Singapore, NEA said.

With dry weather forecast to persist over Kalimantan and southern and central Sumatra, as well as prevailing east-southeasterly to southeasterly winds, smoke haze is likely to continue drifting to Singapore.

The 24-hour PSI in Singapore is forecast to be in the high moderate to mid unhealthy range, NEA said.

When planning outdoor activities for the next 24 hours, the public is advised to use the 24-hour PSI forecast and health advisories.

When 1-hour PM2.5 levels are elevated, healthy people are advised to reduce strenuous outdoor activity for the next hour, while the elderly, pregnant women, children and people with chronic heart or lung conditions should avoid such activity.

The 24-hour PSI is Singapore's indicator of daily air quality and forms the basis of NEA's daily health advisories. It is calculated using six air pollutants - PM2.5, PM10, ozone, sulphur dioxide, nitrogen dioxide and carbon monoxide - and reflects the average air quality of the past 24 hours.

The 1-hour PM2.5 reading, on the other hand, is the hourly average of the PM2.5 pollutant levels. PM2.5 is fine particulate matter with a diameter of 2.5 micrometres or shorter, and is the dominant pollutant during haze that causes harm to health.

A 24-hour PSI reading is considered "unhealthy" when it is in the 101 to 200 range, "very unhealthy" when it is within the 201-300 range and "hazardous" when it goes over 300.

The hourly PM2.5 reading is classified in four bands: normal, elevated, high and very high. It is considered elevated when it ranges from 56 to 150. The "high" band ranges from 151 to 250, and readings above that are classified as "very high".

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早上 7 点，新加坡中部、东部和西部地区的 24 小时空气污染指数 (PSI) 读数处于不健康范围，而这些地区的 1 小时 PM2.5 读数也偏高。

2026年10月6日，东海岸公路沿线笼罩着雾霾。（图片：CNA/Raj Nadarajan）

这段音频由人工智能工具生成。

新加坡：周三（10 月 7 日），新加坡中部、东部和西部的空气质量仍处于不健康水平，PM2.5 小时读数处于较高水平。

早上7点，新加坡中部24小时污染物标准指数（PSI）读数为130，东部为118，西部为117。这三个地区的1小时PM2.5读数也较高，分别为68、61和85。

与此同时，新加坡北部和南部的 PSI 读数分别为 99 和 97，仍处于中等水平。

国家环境局（NEA）在周二晚间的公告中表示，加里曼丹和苏门答腊岛发现了零星的热点地区，而东南亚南部其他地区也发现了一些热点地区。

CNA游戏 猜词游戏 逐行破解单词 流行词游戏 用给定的字母组成单词 迷你数独 小谜题，脑力挑战 迷你填字游戏 小方格，大挑战 单词搜索 尽可能多地找出单词 显示更多 显示更少 新加坡国家环境局（NEA）表示，观测到来自苏门答腊南部和西加里曼丹的中等至浓重烟雾正向新加坡飘移。由于预计加里曼丹以及苏门答腊南部和中部将持续干燥天气，加上盛行东南偏东至东南风，烟雾可能会继续飘移至新加坡。新加坡国家环境局表示，预计新加坡24小时空气污染指数（PSI）将处于中等偏高至中等不健康范围。建议公众在计划未来24小时的户外活动时，参考24小时空气污染指数预报和健康建议。当 1 小时 PM2.5 水平升高时，建议健康人群在接下来的一个小时内减少剧烈的户外活动，而老年人、孕妇、儿童以及患有慢性心脏或肺部疾病的人应避免此类活动。

新加坡国家环境局表示，观测到来自苏门答腊南部和西加里曼丹的中等至浓重烟雾正向新加坡方向飘移。

由于加里曼丹岛和苏门答腊岛南部及中部预计将持续干燥天气，加上盛行东南偏东至东南风，烟雾可能会继续飘向新加坡。

新加坡国家环境局表示，预计新加坡24小时空气污染指数将处于中度至中度不健康范围。

建议公众在计划未来 24 小时的户外活动时，参考 24 小时 PSI 预报和健康建议。

当 1 小时 PM2.5 水平升高时，建议健康人群在接下来的一个小时内减少剧烈的户外活动，而老年人、孕妇、儿童以及患有慢性心脏或肺部疾病的人应避免此类活动。

24小时空气污染指数（PSI）是新加坡衡量每日空气质量的指标，也是国家环境局（NEA）每日健康建议的基础。它使用六种空气污染物——PM2.5、PM10、臭氧、二氧化硫、二氧化氮和一氧化碳——计算得出，反映了过去24小时的平均空气质量。

另一方面，1 小时 PM2.5 读数是 PM2.5 污染物浓度的小时平均值。PM2.5 是直径为 2.5 微米或更短的细颗粒物，是雾霾期间造成健康危害的主要污染物。

24 小时 PSI 读数在 101 到 200 范围内被认为是“不健康的”，在 201 到 300 范围内被认为是“非常不健康的”，超过 300 时被认为是“危险的”。

PM2.5 每小时读数分为四个等级：正常、偏高、高和非常高。当读数在 56 至 150 之间时，被视为偏高；“高”等级的范围为 151 至 250；高于此范围的读数则被归类为“非常高”。

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