Singapore wakes up to improved air quality as 24-hour PSI returns to moderate

If you are wondering if the skyline from your window looks clearer today, you are not wrong.

Air quality in Singapore improved overnight, with a 24-hour Pollutant Standard Index (PSI) reading of 87 recorded in the central region at 10am on Sunday (Sept 6) morning.

Meanwhile, air quality in the four other regions has also maintained in the moderate range.

The central region has recorded two consecutive days of air quality in the unhealthy range — 101 to 200 — since Friday.

That prompted the National Environment Agency (NEA) to begin providing daily updates .

In its forecast on Saturday evening , NEA noted that most parts of the surrounding region remained dry.

Its satellite imaging also indicated that moderate to dense smoke plumes over the southern and central parts of Sumatra and various parts of Kalimantan are continuing to drift towards Singapore.

This, coupled with expected dry conditions over Singapore and the region in the coming days, and the prevailing south-easterly or southerly winds, means the city state may continue to be affected by transboundary haze should the fires remain active, the agency stated.

It also forecast the 24-hour PSI for Singapore to be in the higher end of the moderate to the lower end of the unhealthy range.

Checks on the NEA's haze microsite on Sunday morning at 9am show that 1-hour PM2.5 for all regions are in the normal band.

This means that members of the public can continue with normal activities.

However, they 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 can refer to the following guide to plan their immediate or next-day outdoor activities.

如果你觉得今天从窗户望出去的天际线看起来比以前更清晰了，你的感觉没错。

新加坡的空气质量一夜之间有所改善，周日（9月6日）上午10点，中部地区的24小时污染物标准指数（PSI）读数为87。

与此同时，其他四个地区的空气质量也保持在中等水平。

自周五以来，中部地区已连续两天空气质量处于不健康范围（101至200）。

这促使国家环境局（NEA）开始提供每日更新信息。

新加坡国家环境局（NEA）在周六晚间的天气预报中指出，周边地区大部分地区仍然干燥。

其卫星图像还显示，苏门答腊岛南部和中部以及加里曼丹岛部分地区的中等至浓烟羽流正继续向新加坡飘移。

该机构表示，鉴于未来几天新加坡及周边地区预计将出现干燥天气，且盛行东南风或南风，如果火势持续蔓延，新加坡可能会继续受到跨境烟霾的影响。

该机构还预测，新加坡的 24 小时 PSI 指数将处于中等偏高水平至不健康水平的较低水平。

周日上午 9 点，对国家环境局雾霾微网站的检查显示，所有地区的 1 小时 PM2.5 值均在正常范围内。

这意味着公众可以继续进行正常的活动。

但是，他们应该注意到，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。

公众可以参考以下指南来计划当天或第二天的户外活动。