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Copyright All Right Reserved © 2016 Natural Resources and Environment Board Sarawak

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Last Update: 16 Oct 2019
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Air QualityAir Quality

Air quality status is reported based on Air Pollutant Index (API). The API measurement is made on airborne particulate matters of 2.5 microns in size (PM2.5) and the air quality status is determined by API range value. The API recorded and hotspots detected are reported daily in NREB website.

* Deparment of Environment (DOE) has improved the calculation of Air Pollutant Index (API) by using PM2.5 starting early mid year 2018.

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

> Information on PM2.5