Air quality returns to unhealthy range in central Singapore新加坡中部空气质量再次降至不健康水平
As of 9pm, the 24-hour Pollutant Standards Index in Singapore's central region was 102.
As of 9pm, the 24-hour Pollutant Standards Index in Singapore's central region was 102.
The haze seen from the corridor of a HDB block in Yishun on Sep 15, 2026. (File photo: CNA/Ooi Boon Keong)
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SINGAPORE: Air quality in the central region of Singapore returned to the unhealthy range on Thursday (Sep 17) evening after a day.
The 24-hour Pollutant Standards Index (PSI) in the region hit 102 at 9pm, crossing into the unhealthy band.
Air quality remained in the moderate range for the other regions of the country.
PSI readings have dipped in and out of the unhealthy range over the past two weeks. On Tuesday, all five regions of Singapore recorded unhealthy air quality levels, marking the first time this has happened since September 2019.
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On Thursday, the National Environment Agency (NEA) said in its daily haze advisory that the 24-hour PSI was forecast to be in the high moderate to low unhealthy range.
It added that as the prevailing winds were blowing from the southeast to southwest on Thursday, some smoke haze had drifted from southern and central Sumatra towards Singapore. There were also smoke plumes observed over southwestern Kalimantan.
"Dry conditions are expected to continue over southern Sumatra and southern Kalimantan. With the prevailing winds forecast to blow from the southeast to southwest, there is a risk of smoke haze affecting Singapore."
The 24-hour PSI spiked into the unhealthy range in central Singapore on Sep 4 for the first time since 2023, prompting NEA to start providing daily haze advisories from that evening.
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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截至晚上9点，新加坡中部地区的24小时污染物标准指数为102。
2026年9月15日，从义顺组屋走廊看到的雾霾。（资料照片：CNA/Ooi Boon Keong）
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新加坡：周四（9月17日）晚间，新加坡中部地区的空气质量在经历了一天的改善后，再次回到不健康水平。
该地区的 24 小时污染物标准指数 (PSI) 在晚上 9 点达到 102，进入不健康范围。
全国其他地区的空气质量仍处于中等水平。
过去两周，新加坡空气质量指数（PSI）读数在不健康范围内波动。周二，新加坡所有五个地区的空气质量均达到不健康水平，这是自2019年9月以来首次出现这种情况。
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周四，国家环境局 (NEA) 在其每日雾霾预警中表示，预计 24 小时空气污染指数 (PSI) 将处于高、中、低不健康范围。
报告补充说，由于周四盛行风向为东南至西南，一些烟雾从苏门答腊南部和中部飘向新加坡。此外，加里曼丹西南部也观测到烟雾。
“预计苏门答腊南部和加里曼丹南部将持续干燥天气。由于盛行风向预计为东南至西南风，新加坡可能受到烟霾影响。”
9 月 4 日，新加坡中部地区的 24 小时空气污染指数 (PSI) 自 2023 年以来首次飙升至不健康范围，促使国家环境局从当晚开始发布每日雾霾预警。
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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