Haze watch Oct 14: PSI unhealthy across Singapore, thundery showers forecast this afternoon

Air quality in Singapore remained in the unhealthy range on Wednesday (Oct 14) morning, but thundery showers over some areas in the afternoon could bring some reprieve.

At 9am, PSI ranged from 106 in northern Singapore to 144 in the western region.

The next highest readings of 142 and 139 were recorded in the central and eastern regions respectively.

Meanwhile, PM2.5 is in the elevated band across all five regions, with central Singapore recording the highest concentration reading of 98.

Elsewhere, the next highest concentration reading was 83 in southern Singapore.

According to the National Environment Agency's weather microsite, thundery showers are forecast mainly over northern, western and central Singapore in the afternoon.

But the agency also pointed out in its daily haze situation update on Tuesday evening that with dry conditions expected to persist over parts of southern Sumatra and Kalimantan, coupled with the prevailing winds, smoke haze may still drift towards Singapore.

The city state's 24-hour PSI forecast till this evening is expected to remain in the unhealthy range.

Members of the public should check the latest PM2.5 readings before participating in outdoor activities.

新加坡周三（10月14日）上午的空气质量仍处于不健康水平，但下午部分地区的雷阵雨可能会带来一些缓解。

上午9点，新加坡北部地区的PSI指数为106，西部地区的PSI指数为144。

其次较高的读数分别为 142 和 139，分别出现在中部和东部地区。

与此同时，新加坡所有五个地区的 PM2.5 浓度均处于较高水平，其中新加坡中部地区的浓度读数最高，达到 98。

其他地区，浓度第二高的读数是新加坡南部的 83。

根据国家环境局的天气微网站预测，下午新加坡北部、西部和中部地区将主要出现雷阵雨。

但该机构在周二晚间的每日雾霾情况更新中也指出，由于预计苏门答腊南部和加里曼丹部分地区将持续干燥，再加上盛行风向，烟雾仍可能飘向新加坡。

预计该城市州未来24小时的空气污染指数（PSI）将持续到今晚，并处于不健康水平。

公众在参加户外活动前应查看最新的PM2.5读数。