Air quality in Singapore deteriorated overnight, with the Pollutant Standards Index (PSI) reaching unhealthy levels in the western and central areas of the country as of 6am. Specifically, the 24-hour PSI readings in these regions are currently classified as “unhealthy.” This indicates that air pollution is posing a health risk to vulnerable individuals. Residents are advised to reduce prolonged or strenuous outdoor activities. The National Environment Agency of Singapore is monitoring the situation and providing updates to the public. The haze situation stems from hotspots in Sumatra, Indonesia, and is impacting air quality in Singapore. Further details regarding specific PSI values and health advisories are available on the NEA website.