Air quality in normal range on Oct 29 morning; thundery showers expected in late morning, afternoon

Air quality on Thursday (Oct 29) morning was again suitable for normal activities, with hourly PM2.5 in the normal band (0 - 55 µg/m3) and 24-hour Pollutant Standards Index (PSI) in the moderate band (0 to 100) across Singapore.

At 9am, the hourly concentration reading ranged from 31 in western Singapore to 44 in the northern region.

Meanwhile, PSI is within the forecast moderate range.

The highest reading of 77 was recorded in western Singapore, while the lowest reading of 68 was in the southern region.

Thundery showers on Oct 29

According to the Meteorological Service Singapore, thundery showers are expected over many areas in the late morning and early afternoon.

Checks on the service's weather radar show rain clouds south and east off Singapore within a 240km range.

In its daily haze situation update on Wednesday evening, the National Environment Agency (NEA) said showers over Sumatra, Singapore and the surrounding region are expected to keep the regional haze situation suppressed on Thursday.

Turning to Friday and Saturday, the agency noted that winds are forecast to blow from the south-east to south-west.

However, showers expected over the region could help with the haze situation, NEA said.

10 月 29 日星期四上午，新加坡空气质量再次适宜正常活动，每小时 PM2.5 浓度处于正常范围（0 - 55 µg/m3），24 小时污染物标准指数 (PSI) 处于中等范围（0 至 100）。

上午 9 点，新加坡西部地区的每小时浓度读数为 31，北部地区的每小时浓度读数为 44。

与此同时，PSI值处于预测的中等范围内。

新加坡西部地区记录到最高读数77，而南部地区记录到最低读数68。

10月29日有雷阵雨

新加坡气象局预报，上午晚些时候和下午早些时候，许多地区将有雷阵雨。

该机构的天气雷达显示，新加坡南部和东部 240 公里范围内有雨云。

国家环境局（NEA）在周三晚间发布的每日雾霾情况更新中表示，预计苏门答腊、新加坡及周边地区的降雨将使周四的区域雾霾情况得到抑制。

该机构指出，周五和周六预计风向将由东南风向西南风吹。

国家环境局表示，不过该地区预计将有降雨，这可能有助于缓解雾霾情况。