Air quality in Singapore deteriorated further this morning, with all five regions now reporting unhealthy levels. As of 7am local time, the north of Singapore joined the central, east, south, and west in the unhealthy range according to air quality measurements. The primary concern is elevated PM2.5 readings, indicating the presence of fine particulate matter posing health risks. This widespread deterioration indicates a worsening of the haze situation affecting the entire island. Authorities have not yet issued specific advisories beyond encouraging vulnerable individuals to limit outdoor activity. The source of the haze remains a regional issue, impacting air quality in Singapore. Continued monitoring is underway as conditions remain unfavorable.