SINGAPORE: Air quality in western Singapore remained very unhealthy on Sunday (Oct 18), with the 24-hour Pollutant Standards Index (PSI) readings in the other four regions of the country staying in …
The Singapore News
SINGAPORE: Air quality in western Singapore remained very unhealthy on Sunday (Oct 18), with the 24-hour Pollutant Standards Index (PSI) readings in the other four regions of the country staying in …