Haze update Oct 2: Singapore's PSI forecast to remain in moderate to low-unhealthy range

All regions in the Republic recorded a second consecutive day of improved air quality on Friday (Oct 2), with 24-hour Pollutant Standards Index (PSI) remaining in the moderate range across Singapore.

At 6pm, PSI ranged from 64 to 81 — in the moderate range — with central Singapore recording the highest PSI of 81.

Meanwhile, one-hour PM2.5 concentration is in the normal band, except in central (73) and western (56) Singapore, where readings were in the elevated band.

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

It noted that moderate to dense smoke plumes from southern Sumatra were observed drifting towards Singapore, while smoke haze was also observed from fires in Kalimantan.

Given that dry weather is forecast in Singapore and the surrounding region on Saturday, coupled with the prevailing south-easterly or southerly winds, the agency added that smoke haze could be transported towards Singapore.

Members of the public should note that the health impact of haze is dependent on one’s health status, the PSI level, and the length and intensity of outdoor activity.

Members of the public are advised to check the latest one-hour PM2.5 readings before engaging in outdoor activities.

10月2日（星期五），新加坡共和国所有地区连续第二天空气质量改善，24小时污染物标准指数（PSI）在新加坡各地均保持在中等水平。

下午 6 点，新加坡的 PSI 指数在 64 到 81 之间，处于中等水平，其中新加坡中部地区的 PSI 指数最高，达到 81。

与此同时，除新加坡中部（73）和西部（56）地区读数处于升高范围外，新加坡其他地区的一小时 PM2.5 浓度均处于正常范围内，而中部和西部地区的读数则处于升高范围。

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）预计将保持在中等至轻微不健康范围内。

报告指出，从苏门答腊南部观测到中等至浓重的烟柱向新加坡飘去，同时还观测到加里曼丹火灾产生的烟霾。

鉴于新加坡及周边地区周六预计天气干燥，加上盛行东南风或南风，该机构补充说，烟雾可能会被输送到新加坡。

公众应注意，雾霾对健康的影响取决于个人的健康状况、PSI 值以及户外活动的持续时间和强度。

建议公众在进行户外活动前查看最新的1小时PM2.5读数。