Singapore air quality on Sept 5 from high moderate to mid-unhealthy range: NEA

The haze condition as seen from Paya Lebar in the direction of Serangoon at 3.15pm.

Published Sep 04, 2026, 07:55 PM

Updated Sep 04, 2026, 07:55 PM

SINGAPORE – Haze in Singapore could persist to Sept 5, with air quality forecast to be between the higher end of the moderate to the middle of the unhealthy range, said the National Environment Agency (NEA) on Sept 4 evening.

In the first of its daily haze advisory, the agency said smoke plumes from fires in the southern and central parts of Sumatra and various parts of Kalimantan were observed to drift towards Singapore.

As dry conditions are forecast for the coming days, Singapore may continue to be affected by transboundary haze under the existing southern winds if the fires persist.

“The 24- hour Pollutant Standards Index (PSI) for Singapore is forecast to be in the higher end of the moderate to the middle of the unhealthy range.”

Air quality is considered “unhealthy” when the PSI exceeds 101. It is considered “very unhealthy” when the PSI exceeds 200, and “hazardous” when PSI crosses 300.

On Sept 4, air quality in Singapore hit unhealthy levels for the first time since October 2023, with the PSI, a measure of air quality here, reaching the unhealthy threshold of 101 at 7am.

By 7pm, the PSI in the central region was 116, while other regions recorded the higher end of moderate levels between 83 and 98.

Every evening during haze, NEA will release the PSI forecast for the next day to help people plan their activities.

When the air is unhealthy, people with chronic lung or heart disease should avoid prolonged or strenuous outdoor activities, while seniors, pregnant women and children should minimise such activities. Healthy folks should reduce long and strenuous outdoor activities.

下午 3 点 15 分，从巴耶利峇方向实龙岗看到的雾霾情况。

发布于 2026 年 9 月 4 日 晚上 7:55

更新于2026年9月4日晚上7:55

新加坡——新加坡国家环境局（NEA）9月4日晚间表示，新加坡的雾霾可能会持续到9月5日，预计空气质量将处于中等偏上到不健康范围的中段。

该机构在每日首次发布的雾霾预警中表示，苏门答腊岛南部和中部以及加里曼丹岛各地火灾产生的烟雾正向新加坡飘去。

由于预计未来几天天气干燥，如果火势持续，新加坡可能会在现有南风的影响下继续受到跨境烟霾的影响。

“预计新加坡24小时污染物标准指数（PSI）将处于中等偏上水平，接近不健康水平。”

当 PSI 超过 101 时，空气质量被认为是“不健康的”；当 PSI 超过 200 时，空气质量被认为是“非常不健康的”；当 PSI 超过 300 时，空气质量被认为是“危险的”。

9 月 4 日，新加坡的空气质量自 2023 年 10 月以来首次达到不健康水平，衡量当地空气质量的 PSI 指数在早上 7 点达到不健康阈值 101。

晚上 7 点，中部地区的 PSI 指数为 116，而其他地区的 PSI 指数则处于中等水平的较高范围，介于 83 到 98 之间。

每天傍晚雾霾期间，国家环境局 (NEA) 都会发布第二天的 PSI 预报，以帮助人们安排活动。

空气质量不佳时，患有慢性肺病或心脏病的人应避免长时间或剧烈的户外活动；老年人、孕妇和儿童应尽量减少此类活动。健康人群也应减少长时间剧烈的户外活动。