Haze watch: PSI remains in moderate range across Singapore

Singapore has seen improved air quality in the first two days of October, with 24-hour Pollutant Standards Index (PSI) remaining in the moderate range for a second consecutive day on Friday (Oct 2).

At 9am, PSI ranged between 61 and 75 — in the moderate range — with central Singapore recording the highest reading of 75, followed by the southern (72) and eastern (72) regions.

Meanwhile, one-hour PM2.5 was well within the normal band across all five regions.

In its daily haze situation update issued on Thursday evening , the National Environment Agency had said that the country's 24-hour PSI forecast is expected to be in the moderate to low-unhealthy range.

It added that moderate to dense smoke plumes were observed in southern Sumatra and Kalimantan, and that smoke haze from southern Kalimantan was seen drifting towards the vicinity of Singapore.

Despite showers forecast for Singapore and the surrounding region, prevailing south-easterly or southerly winds could transport smoke haze towards the Republic, NEA said.

Members of the public are advised to check the one-hour PM2.5 concentration readings before taking part in any immediate outdoor activities.

新加坡在 10 月的前两天空气质量有所改善，24 小时污染物标准指数 (PSI) 在周五（10 月 2 日）连续第二天保持在中等水平。

上午 9 点，PSI 指数在 61 到 75 之间，处于中等水平。新加坡中部地区读数最高，为 75，其次是南部地区（72）和东部地区（72）。

与此同时，五个地区的PM2.5一小时浓度均在正常范围内。

国家环境局在周四晚间发布的每日雾霾情况更新中表示，该国 24 小时 PSI 指数预计将处于中度至轻度不健康范围内。

报告还指出，苏门答腊南部和加里曼丹岛观测到中等至浓重的烟雾，加里曼丹岛南部的烟雾正向新加坡附近飘去。

新加坡国家环境局表示，尽管新加坡及其周边地区预报有阵雨，但盛行的东南风或南风可能会将烟雾吹向新加坡。

建议公众在参加任何户外活动前，先查看一小时 PM2.5 浓度读数。