Haze update Oct 6: Unhealthy air quality across Singapore, 24-hour PSI forecast high moderate to mid-unhealthy10月6日雾霾最新消息：新加坡全境空气质量不佳，24小时PSI指数预测为高、中、低至中等不健康水平。
Air quality across Singapore remained in the unhealthy range on Tuesday (Oct 6) afternoon, with southern Singapore falling back into the range again at 12pm.At 5pm, 24-hour Pollutant Standards Index (PSI) ranged from 102 to 135.The highest reading of 135 was recorded in the central region, followed by eastern (119) and western (112) Singapore. Meanwhile, one-hour PM2.5 is in the...
Air quality across Singapore remained in the unhealthy range on Tuesday (Oct 6) afternoon, with southern Singapore falling back into the range again at 12pm.
At 5pm, 24-hour Pollutant Standards Index (PSI) ranged from 102 to 135.
The highest reading of 135 was recorded in the central region, followed by eastern (119) and western (112) Singapore.
Meanwhile, one-hour PM2.5 is in the elevated band across all five regions.
Central Singapore has the highest concentration reading of 103µg/m3. The next highest PM2.5 reading was recorded in the eastern region (98).
In its daily haze situation update on Tuesday evening, the National Environment Agency (NEA) said the country's 24-hour PSI forecast is expected to remain in the high moderate to mid-unhealthy range.
It noted that moderate to dense smoke plumes from southern Sumatra and West Kalimantan were observed drifting towards Singapore.
Data from the ASEAN Specialised Meteorological Centre shows that the number of hotspots in Kalimantan fell from 527 on Oct 4, to 438 on Oct 5.
Given the prevailing east-south-easterly to south-easterly winds, coupled with dry weather forecast over Kalimantan and southern and central Sumatra, the agency said that smoke haze is likely to continue drifting towards Singapore.
Members of the public should check the latest one-hour PM2.5 concentration readings before participating in outdoor activities.
If PM2.5 concentration reading enters the high-band (151 to 250 µg/m3), healthy persons should avoid strenuous outdoor activity for the next hour, while vulnerable persons should avoid all outdoor activity for the next hour.
周二（10月6日）下午，新加坡全国空气质量仍处于不健康水平，新加坡南部地区在中午12点再次降至不健康水平。
下午 5 点，24 小时污染物标准指数 (PSI) 范围为 102 至 135。
新加坡中部地区记录到的最高读数为 135，其次是东部地区（119）和西部地区（112）。
与此同时，五个地区的PM2.5一小时浓度均处于较高水平。
新加坡中部地区的 PM2.5 浓度读数最高，为 103µg/m3。其次高的 PM2.5 读数出现在东部地区（98）。
国家环境局（NEA）在周二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）预计将保持在中度至中度不健康范围内。
报告指出，来自苏门答腊南部和西加里曼丹的中等至浓重烟雾正向新加坡飘去。
东盟专业气象中心的数据显示，加里曼丹岛的热点数量从 10 月 4 日的 527 个下降到 10 月 5 日的 438 个。
鉴于目前盛行东南偏东风至东南风，加上加里曼丹岛和苏门答腊岛南部及中部地区预计天气干燥，该机构表示，烟雾可能会继续向新加坡飘移。
公众在参加户外活动前，应查看最新的1小时PM2.5浓度读数。
如果 PM2.5 浓度读数进入高频段（151 至 250 µg/m3），健康人群应在接下来的一个小时内避免剧烈的户外活动，而易感人群应在接下来的一个小时内避免所有户外活动。