Air quality status is reported based on Air Pollutant Index (API). The API measurement is made on airborne particulate matters of 10 microns in size (PM10) and the air quality status is determined by API range value. The API recorded and hotspots detected are reported daily "Haze Watch" through NREB website.
The overall air quality status in Sarawak was generally good to moderate throughout the recent year with the exception of a few unhealthy days recorded during the dry season, particularly, in July, August and September.
The Cause of Haze
The air quality deteriorated in the State during the dry period due to the smoke and haze occurrence from open burning activities. This was confirmed by the occurrence of increasing number of hotspots detected in the region during July, August and September.
The hotspots detected in the neighbouring region Sumatra and Kalimantan (Indonesia) were significantly high during the dry season, particularly, in August and September each year. The image of hotspots were detected via NOAA Satellite. Smoke and haze due to open burning, especially, transboundary from neighbouring country, have contributed significantly to hazy situation in Sarawak.
> API Indicators
> Hotspot Info