Haze threat looms over Singapore again after brief 3-day respite

Singapore has now enjoyed three days of better air quality, after a stretch of unhealthy-to-very unhealthy 24-hour Pollutant Standards Index (PSI) and high-to-very high hourly PM2.5, which began on Oct 5.But, as the National Environment Agency (NEA) has been cautioning since Oct 18, winds could again turn — this time, not in the city state's favour.In its daily haze situation update on Tuesday (Oct 20) night, the agency said that showers are forecast over Singapore and the surrounding region on Wednesday.However, it cautioned that smoke haze from fires in Kalimantan may move towards Singapore as the winds are expected to blow from the east-southeast to southeast. In updates on Sunday and Monday evening, NEA warned that this could happen from as early as Tuesday night.