Singapore Air Quality Worst Since 2019 as Indonesia Fires Spread

The return to unhealthy air quality across all five regions marks the first such reading since 2019, underscoring how El Nino-driven dry weather in Indonesia can quickly reverse Singapore's typically managed environment. The immediate effects fall on residents and outdoor workers, while the broader signal is regional: haze episodes are a recurring transboundary risk that no single city can control. The open question is whether these conditions persist or ease with the weather, and whether the underlying fire activity in Indonesia is contained.