Air quality back in unhealthy range in central Singapore as haze persists新加坡中部地区空气质量再次降至不健康水平，雾霾持续。
The 24-hour PSI reading in central Singapore hit 102 at 11pm.
The 24-hour PSI reading in central Singapore hit 102 at 11pm.
A view from Jurong West of the haze situation in Singapore on Sep 4, 2026. (Photo: CNA/Ili Mansor)
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SINGAPORE: Air quality in some areas of Singapore entered the unhealthy range on Wednesday (Sep 9), with the 24-hour Pollutant Standards Index (PSI) standing at 102 in the central region as of 11pm, according to the National Environment Agency (NEA).
In its advisory on Sep 9, NEA said that moderate to dense smoke plumes continued to be detected from fires in southern and central Sumatra and Kalimantan, with some haze drifting towards Singapore.
While some showers are forecast over central and northern Sumatra in the coming days, dry conditions are expected to persist over Kalimantan and southern Sumatra, resulting in a risk of haze in Singapore if fires persist.
NEA put the 24-hour PSI forecast for Singapore in the high moderate to low unhealthy range.
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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新加坡市中心24小时PSI读数在晚上11点达到102。
2026年9月4日，从裕廊西拍摄的新加坡雾霾景象。（图片：CNA/Ili Mansor）
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新加坡：据国家环境局（NEA）称，周三（9月9日），新加坡部分地区的空气质量已进入不健康范围，截至晚上11点，中部地区的24小时污染物标准指数（PSI）为102。
新加坡国家环境局 (NEA) 在 9 月 9 日发布的公告中表示，苏门答腊岛南部和中部以及加里曼丹岛的火灾持续产生中等至浓重的烟雾，部分烟雾正向新加坡飘去。
未来几天苏门答腊中部和北部地区预计会有一些阵雨，但加里曼丹和苏门答腊南部地区预计仍将保持干燥，如果火灾持续，新加坡可能会出现雾霾。
新加坡国家环境局预测，新加坡24小时空气污染指数将处于高、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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