Air quality in central Singapore back in moderate range as PSI drops to 100

The haze seen from Boat Quay at 9.45am on Sept 10.

Published Sep 10, 2026, 10:12 PM

Updated Sep 10, 2026, 10:13 PM

SINGAPORE – The air quality across Singapore has improved, with the PSI across all five regions of the country now falling within the moderate range as at 10pm on Sept 10.

The 24-hour Pollutant Standards Index (PSI) for the central region dipped to 100 at 10pm on Sept 10, after reaching unhealthy levels when it hit a high of 106 between 9am and 11am.

Readings in the north (72), south (77), east (86) and west (82) remained in the moderate range as at 10pm on Sept 10, according to the National Environment Agency (NEA) website .

Haze in Singapore began an uptick again recently when the PSI in the central region crossed 101 early on Sept 4.

Since then, readings in the central, eastern and western parts of Singapore have occasionally crossed into the unhealthy range before dipping back into the moderate spectrum.

In an advisory on Sept 10, the NEA said the 24-hour PSI is forecast to range from the higher end of the moderate category to the lower end of the unhealthy spectrum.

NEA said that it continues to observe moderate to dense smoke plumes from fires in southern and central Sumatra as well as Kalimantan , adding that some haze also drifted towards Singapore.

It added that while “some showers are forecast mostly over northern and central Sumatra in the next few days... there is a risk of smoke haze affecting Singapore should the fires persist, under the prevailing south-easterly or southerly winds”.

The recent developments mark the first time the PSI in Singapore hit unhealthy levels due to haze since October 2023 .

Air quality is considered unhealthy when the PSI is in the range of 101 to 200, during which NEA advises the public to cut down on outdoor activities.

PSI readings of 51 to 100 are considered moderate, while values of 0 to 50 are in the “good” range.

National Environment Agency

9月10日上午9点45分，从驳船码头看到的雾霾。

发布于 2026 年 9 月 10 日晚上 10:12

更新于2026年9月10日晚上10:13

新加坡——截至9月10日晚上10点，新加坡全国空气质量有所改善，五个地区的空气污染指数均已降至中等水平。

9月10日晚上10点，中部地区的24小时污染物标准指数（PSI）降至100，此前该指数在上午9点至11点之间达到106的峰值，属于不健康水平。

根据国家环境局 (NEA) 网站的数据，截至 9 月 10 日晚上 10 点，北部 (72)、南部 (77)、东部 (86) 和西部 (82) 的读数仍处于中等范围。

新加坡的雾霾最近再次加剧，9 月 4 日清晨，中部地区的 PSI 指数超过 101。

从那时起，新加坡中部、东部和西部地区的读数偶尔会进入不健康范围，然后又回落到中等范围。

9 月 10 日，国家环境局发布公告称，预计 24 小时 PSI 指数将从中等水平的较高值到不健康水平的较低值不等。

新加坡国家环境局表示，他们继续观察到苏门答腊南部和中部以及加里曼丹的火灾产生的中等至浓重的烟雾，并补充说，一些烟雾也飘向了新加坡。

声明还补充说，“未来几天苏门答腊北部和中部地区预计会有一些阵雨……但如果火势持续，在盛行的东南风或南风的影响下，新加坡可能会受到烟霾的影响”。

最近的事态发展标志着自 2023 年 10 月以来，新加坡的空气污染指数 (PSI) 首次因雾霾达到不健康水平。

当空气污染指数（PSI）在 101 至 200 之间时，空气质量被认为是不健康的，此时国家环境局建议公众减少户外活动。

PSI读数在51到100之间被认为是中等的，而0到50之间的数值则属于“良好”范围。

国家环境局