Singapore experienced improved air quality on Sunday due to a shift in wind direction, now blowing from the south. However, the haze situation persists, and the 24-hour Pollutant Standards Index (PSI) remained in the unhealthy range, fluctuating between 106 and 186. While the change in wind direction offered some relief, air quality remains a concern for residents of Singapore. The National Environment Agency continues to monitor the situation closely. This haze is likely caused by hotspots in Sumatra, Indonesia, though this has not been officially confirmed. The public, particularly vulnerable groups, are advised to limit prolonged outdoor activities. Despite the improvement, conditions in Singapore remain far from ideal.