Haze down to unhealthy range on Thursday; conditions expected to continue on Friday

A plane landing at Changi Airport at 3pm on Thursday, Oct 1, 2015.
A plane landing at Changi Airport at 3pm on Thursday, Oct 1, 2015.ST PHOTO: CHEW SENG KIM
Haze around city hall area at 1.23pm when the 3-hour PSI at 1pm is 182 on Oct 1, 2015.
Haze around city hall area at 1.23pm when the 3-hour PSI at 1pm is 182 on Oct 1, 2015.PHOTO: LIM YAOHUI FOR THE STRAITS TIMES
The lunchtime crowd at Raffles Place on Thursday (Oct 1).
The lunchtime crowd at Raffles Place on Thursday (Oct 1). PHOTO: LIM YAOHUI FOR THE STRAITS TIMES
The lunchtime crowd at Raffles Place on Thursday (Oct 1).
The lunchtime crowd at Raffles Place on Thursday (Oct 1). PHOTO: LIM YAOHUI FOR THE STRAITS TIMES
The lunchtime crowd at Raffles Place on Thursday (Oct 1).
The lunchtime crowd at Raffles Place on Thursday (Oct 1).PHOTO: LIM YAOHUI FOR THE STRAITS TIMES
The lunchtime crowd at Raffles Place on Thursday (Oct 1).
The lunchtime crowd at Raffles Place on Thursday (Oct 1). PHOTO: LIM YAOHUI FOR THE STRAITS TIMES
The lunchtime crowd at Raffles Place on Thursday (Oct 1).
The lunchtime crowd at Raffles Place on Thursday (Oct 1). PHOTO: LIM YAOHUI FOR THE STRAITS TIMES
The haze situation at Marina Bay Sands at 1.50pm on Thursday (Oct 1).
The haze situation at Marina Bay Sands at 1.50pm on Thursday (Oct 1). ST PHOTO: YEO KAI WEN
The haze situation at Marina Bay Sands at 1.50pm on Thursday (Oct 1).
The haze situation at Marina Bay Sands at 1.50pm on Thursday (Oct 1). ST PHOTO: YEO KAI WEN
The hazy skyline as seen from Ocean Financial Centre at 10.30am on Thursday.
The hazy skyline as seen from Ocean Financial Centre at 10.30am on Thursday.ST PHOTO: CHEW SENG KIM
Pupils of CHIJ Toa Payoh wearing masks heading to school at 7.30am on Oct 1, 2015.
Pupils of CHIJ Toa Payoh wearing masks heading to school at 7.30am on Oct 1, 2015. ST PHOTO: JAMIE KOH
Pupils of CHIJ Toa Payoh wearing masks heading to school at 7.30am on Oct 1, 2015.
Pupils of CHIJ Toa Payoh wearing masks heading to school at 7.30am on Oct 1, 2015. ST PHOTO: JAMIE KOH
The hazy outlook in Toa Payoh at 8am on Oct 1, 2015.
The hazy outlook in Toa Payoh at 8am on Oct 1, 2015. ST PHOTO: JAMIE KOH

SINGAPORE - Hazy conditions are expected to continue on Friday (Sept 2), with the 24-hour Pollutant Standards Index (PSI) set to be between the high end of the unhealthy range and the middle of the very unhealthy range.

In its 5pm advisory on Thursday (Sept 1), the National Environment Agency (NEA) added that the 24-hour PSI could deteriorate to the high end of the very unhealthy range if denser haze is blown in by prevailing winds from the south-east or south.

The situation did not improve on Thursday as the 24-hour reading entered the very unhealthy range at noon, before decreasing slightly at 3pm.

As of 4am, the 24-hour PSI was 131-166, with the three-hour PSI at 114.


The hazy outlook from Novotel Clarke Quay at 11.30am on Oct 1, 2015. ST PHOTO: CHEW SENG KIM 

With the start of Primary School Leaving Examination (PSLE) on Thursday, primary schools in Singapore are taking extra precautions for the safety of staff and pupils.

The pupils will sit their exams in air-conditioned facilities - from school halls to special classrooms - and these are fitted with air purifiers.

There are already processes in place for candidates who are ill during national exams, and these will apply to those unable to take the exam due to haze-related illnesses.

For updates, visit the NEA website and the haze microsite, and follow NEA's Facebook page or Twitter account, or download the myEnv app.