Singapore recorded its 12th consecutive day of unhealthy air quality on Friday, the longest such spell since the 2015 haze crisis, as the 24-hour PSI in central Singapore hit 227.<br /><br />WATCH MORE: https://thestartv.com/c/news<br />SUBSCRIBE: https://cutt.ly/TheStar<br />LIKE: https://fb.com/TheStarOnline
