Haze watch Oct 13: PSI rising across Singapore amid higher PM2.5 readings overnight, remains in unhealthy range10月13日雾霾预警：新加坡雾霾指数（PSI）上升，夜间PM2.5浓度升高，仍处于不健康范围内。
Air quality remains in the unhealthy range across Singapore on Tuesday (Oct 13) morning, with 24-hour Pollutant Standards Index (PSI) readings in the high-unhealthy range in the western and central regions.At 9am, PSI ranged from 127 in northern Singapore to 172 in western Singapore.The next highest reading of 169 was recorded in central Singapore, while readings in the eastern and...
Air quality remains in the unhealthy range across Singapore on Tuesday (Oct 13) morning, with 24-hour Pollutant Standards Index (PSI) readings in the high-unhealthy range in the western and central regions.
At 9am, PSI ranged from 127 in northern Singapore to 172 in western Singapore.
The next highest reading of 169 was recorded in central Singapore, while readings in the eastern and southern regions were 154 and 134 respectively.
Readings of between 101 to 200 are in the unhealthy range, with readings of 167 to 200 considered to be high-unhealthy.
Meanwhile, one-hour PM2.5 is in the elevated band across Singapore.
In western Singapore, the concentration reading briefly spiked to 171 — in the high band — between 9pm and 10pm.
In its daily haze situation update on Monday, the National Environment Agency (NEA) said that moderate to dense smoke plumes continued to be observed from fires in Kalimantan and southern Sumatra, while smoke haze was also observed drifting towards Singapore.
And while rain is forecast over Singapore and parts of the surrounding region, the agency pointed out that dry conditions are expected to persist over parts of southern Sumatra and Kalimantan.
Data from the ASEAN Specialised Meteorological Centre shows that the number of hotspots climbed to 142 in Sumatra on Oct 12, while there were 120 hotspots in Kalimantan on the same day.
"Smoke haze may continue to drift towards Singapore under the prevailing easterly or southeasterly winds.
"The 24-hr PSI for Singapore is forecast to be in the unhealthy range."
Members of the public are advised to check the latest PM2.5 concentration readings before engaging in outdoor activities.
周二（10 月 13 日）上午，新加坡各地空气质量仍处于不健康范围，西部和中部地区的 24 小时污染物标准指数 (PSI) 读数处于高度不健康范围。
上午9点，新加坡北部地区的PSI指数为127，西部地区的PSI指数为172。
新加坡中部地区记录到的第二高读数为 169，而东部和南部地区的读数分别为 154 和 134。
读数在 101 到 200 之间属于不健康范围，读数在 167 到 200 之间则被认为是高度不健康。
与此同时，新加坡全境一小时 PM2.5 浓度处于较高水平。
在新加坡西部，晚上 9 点到 10 点之间，浓度读数短暂飙升至 171——处于较高水平。
新加坡国家环境局（NEA）周一发布的每日烟霾情况通报称，加里曼丹和苏门答腊南部地区的火灾持续产生中度至重度的烟雾，同时还观察到烟霾向新加坡方向飘移。
虽然预计新加坡及周边地区将有降雨，但该机构指出，苏门答腊南部和加里曼丹部分地区预计仍将持续干旱。
东盟专业气象中心的数据显示，10 月 12 日苏门答腊岛的热点数量攀升至 142 个，而同一天加里曼丹岛的热点数量为 120 个。
“在盛行的东风或东南风的影响下，烟雾可能会继续向新加坡飘去。”
“预计新加坡24小时空气污染指数将处于不健康范围。”
建议公众在进行户外活动前查看最新的PM2.5浓度读数。