Air quality returns to moderate range in central Singapore

The 24-hour PSI reading in central Singapore was 100 as of 10pm on Thursday.

A view from Jurong Lake Gardens of the haze situation in Singapore on Sep 4, 2026. (File photo: CNA/Ili Mansor)

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SINGAPORE: Air quality in central Singapore returned to the moderate range on Thursday (Sep 10), according to the National Environment Agency (NEA), with the 24-hour Pollutant Standards Index (PSI) in the region standing at 100 at 10pm.

The 24-hour PSI in the central region had crossed into the unhealthy range late on Wednesday, reaching 102 at 11pm, according to NEA.

It rose to 104 at 6am on Thursday, and fluctuated slightly through the day before sitting at 102 at 9pm and dropping to 100 an hour later.

Air quality in the other regions remained in the moderate range.

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 In its daily haze advisory earlier on Thursday, NEA said that moderate to dense smoke plumes continued to be detected from fires in southern Sumatra and Kalimantan, with smoke from southern Sumatra observed drifting towards Singapore. While showers occurred over Singapore on Thursday, with showers also forecast over central and northern Sumatra in the coming days, dry conditions are expected to persist over Kalimantan and southern Sumatra. This could result in a risk of haze in Singapore should fires persist, under prevailing southeasterly or southerly winds, NEA said. NEA forecast the 24-hour PSI for Singapore to be in the high moderate to low unhealthy range for the 24 hours from 6pm.

In its daily haze advisory earlier on Thursday, NEA said that moderate to dense smoke plumes continued to be detected from fires in southern Sumatra and Kalimantan, with smoke from southern Sumatra observed drifting towards Singapore.

While showers occurred over Singapore on Thursday, with showers also forecast over central and northern Sumatra in the coming days, dry conditions are expected to persist over Kalimantan and southern Sumatra.

This could result in a risk of haze in Singapore should fires persist, under prevailing southeasterly or southerly winds, NEA said.

NEA forecast the 24-hour PSI for Singapore to be in the high moderate to low unhealthy range for the 24 hours from 6pm.

Air quality dipped into the unhealthy range for the first time since 2023 on Sep 4, with the PSI reaching as high as 123 in the central region . This persisted into Sep 5 before air quality returned to the moderate range at 9pm that day.

The unhealthy PSI reading prompted NEA to start providing daily haze advisories from the evening of Sep 4.

The unhealthy PSI band runs from 101 to 200, while a reading is considered "very unhealthy" if it is between 201 and 300, and "hazardous" if it is above 300.

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截至周四晚上 10 点，新加坡中部 24 小时 PSI 读数为 100。

2026年9月4日，从裕廊湖花园看到的新加坡雾霾景象。（资料照片：CNA/Ili Mansor）

这段音频是由人工智能工具生成的。

新加坡：据国家环境局（NEA）称，新加坡中部地区的空气质量在周四（9月10日）恢复到中等水平，该地区的24小时污染物标准指数（PSI）在晚上10点为100。

据国家环境局称，周三晚些时候，中部地区的24小时空气污染指数（PSI）已进入不健康范围，晚上11点达到102。

周四早上 6 点，该数值升至 104，当天略有波动，晚上 9 点稳定在 102，一小时后降至 100。

其他地区的空气质量仍处于中等水平。

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）周四早些时候发布的每日雾霾预警中表示，苏门答腊南部和加里曼丹的火灾持续产生中度至重度烟雾，苏门答腊南部的烟雾正向新加坡飘移。虽然新加坡周四有阵雨，预计未来几天苏门答腊中部和北部也将有阵雨，但加里曼丹和苏门答腊南部预计将持续干燥。NEA表示，如果火灾持续，在盛行的东南风或南风的影响下，新加坡可能会出现雾霾风险。NEA预测，从下午6点开始的24小时内，新加坡的24小时空气污染指数（PSI）将处于中度偏高到不健康偏低的范围内。

新加坡国家环境局 (NEA) 在周四早些时候发布的每日雾霾预警中表示，苏门答腊南部和加里曼丹的火灾持续产生中等至浓重的烟雾，并观察到苏门答腊南部的烟雾向新加坡飘去。

周四新加坡出现阵雨，预计未来几天苏门答腊中部和北部地区也将有阵雨，但加里曼丹和苏门答腊南部地区预计将持续干燥天气。

新加坡国家环境局表示，如果火势持续，在盛行的东南风或南风条件下，新加坡可能会出现雾霾风险。

新加坡国家环境局预测，从下午 6 点开始的 24 小时内，新加坡的 24 小时空气污染指数 (PSI) 将处于高、中、低不健康范围。

9月4日，空气质量自2023年以来首次降至不健康水平，中部地区的PSI值高达123。这种情况持续到9月5日，直到当晚9点空气质量才恢复到中等水平。

由于空气污染指数 (PSI) 读数不健康，国家环境局 (NEA) 从 9 月 4 日晚开始每日发布雾霾预警。

不健康的 PSI 范围为 101 至 200，而读数在 201 至 300 之间则被认为是“非常不健康的”，而高于 300 则被认为是“危险的”。

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