Singapore's National Environment Agency expects haze conditions to ease slightly on Oct 9. Its 24-hour forecast puts the Pollutant Standards Index in the high moderate to mid-unhealthy range for the day. That points to marginal relief, though the air will still fall well short of clean. Haze over the island typically builds when smoke from land clearing fires elsewhere is pushed in by winds. Anyone with asthma or a chronic lung condition would still be wise to limit strenuous time outdoors. Older adults and young children face the greatest exposure at these readings. The agency reviews its outlook daily, and the figure can shift with wind direction and fire activity.