SINGAPORE - As the Pollutant Standards Index (PSI) hit a high on Thursday (Sept 24), Singaporeans took to Twitter for updates and to share their takes on the situation.

There have been more than 160,000 conversations with the hashtag #sghaze since Sept 10, the social network said.

Chatter peaked at 9.34pm on Thursday, when there were 170 tweets a minute as the closure of primary and secondary schools on Friday made headlines. The three-hour PSI was 316 at 9pm that day, with the 24-hour PSI being 219-270.

Another high was at 8.39pm on Sept 14, when there were 99 tweets a minute.

The most-shared tweet with #sghaze was from user Edward Thatch, who joked how PSI readings in Malaysia and Singapore coincided with currency conversion rates.

His Sept 11 tweet has been retweeted more than 13,000 times and favourited more than 3,000 times.

Here are some other top tweets: