Unhealthy air returns to Asia’s richest country as smoke blows in from abroad
The 24-hour Pollutant Standards Index (PSI) in Singapore’s central region reached 102 at noon and 108 by 2 p.m., CNA reported. The other four regions stayed in the moderate band, ranging from 83 in the north to 96 in the east. At noon, National Environment Agency data cited by AsiaOne showed readings of 91 in … Read more