Singapore haze: Air quality very unhealthy in central region; PM2.5 reading high in east
At 6am, the 24-hour PSI in central Singapore was 221, while readings in the rest of the country were at the unhealthy level, ranging from 145 to 193.
At 6am, the 24-hour PSI in central Singapore was 221, while readings in the rest of the country were at the unhealthy level, ranging from 145 to 193.