Haze update Sept 25: Showers forecast, 24-hour PSI in moderate range

Air quality remained in the moderate range on Friday (Sept 25), and is forecast to remain in the range till tomorrow.

At 6pm, 24-hour Pollutant Standards Index (PSI) ranged from 61 to 79 — in the moderate range — with central Singapore recording the highest reading of 79.

Meanwhile, one-hour PM2.5 is in the normal band across all five regions.

In its daily haze situation update on Friday evening, the National Environment Agency (NEA) said the country's 24-hour PSI is forecast to be in the moderate range.

Explaining its forecast, NEA said that while moderate to dense smoke plumes were observed from fires in part of Kalimantan and southern Sumatra, showers are expected over Singapore and parts of the surrounding region tomorrow.

"(This) could help reduce the risk of smoke haze," it added.

Data from the ASEAN Specialised Meteorological Centre showed that the number of hotspots in Kalimantan fell from 792 on Sept 23, to 472 on Sept 24.

Members of the public should check the one-hour PM2.5 concentration before participating in any immediate outdoor activities.

周五（9月25日）空气质量仍处于中等水平，预计到明天仍将保持在该水平。

下午 6 点，24 小时污染物标准指数 (PSI) 介于 61 至 79 之间，处于中等范围，其中新加坡中部地区记录到的最高读数为 79。

与此同时，五个地区的PM2.5一小时浓度均处于正常范围内。

国家环境局（NEA）在周五晚间发布的每日雾霾情况更新中表示，该国24小时空气污染指数（PSI）预计将处于中等水平。

新加坡国家环境局 (NEA) 在解释其天气预报时表示，虽然加里曼丹部分地区和苏门答腊南部地区的火灾产生了中等至浓重的烟雾，但预计明天新加坡及周边地区将有阵雨。

“（这）有助于降低烟雾的风险，”报告补充道。

东盟专业气象中心的数据显示，加里曼丹岛的热点数量从 9 月 23 日的 792 个下降到 9 月 24 日的 472 个。

公众在参加任何户外活动前，应查看一小时 PM2.5 浓度。