STUDENTS at Ngee Ann Secondary School were supposed to spend today at Changi beach but instead, they will be visiting the Newater plant in Bedok and the air force museum in Paya Lebar.

Both are indoors and the school had changed its plans because of the haze.

Schools have said they will cancel all outdoor activities if the Pollutant Standards Index (PSI) continues to stay within the unhealthy range of 101 to 200.

Several secondary schools and junior colleges are in the process of returning examination scripts, carrying out post-exam activities or having project work presentations.

Primary school pupils, meanwhile, are not in school this week because of the ongoing Primary School Leaving Examination marking exercise. They will be back to school next week.

School holidays will start next month for primary and secondary schools here.