doi: 10.18178/ijesd.2024.15.3.1475
The Impact of Atmospheric Stability Affected by Peat Forest Fire on Surface PM2.5 Concentration in Pontianak Urban Area during La Nina Events 2022
, ,
Atep Radiana1
,
Syafrijon2,* , , , ,
- 1National Researh and Innovation Agency, Indonesia
- 2Electronics Engineering Department, Faculty of Engineering, Universitas Negeri Padang, Indonesia
- 3Environment Agency of Pontianak City, Indonesia
- Manuscript receivedJanuary 3, 2024
- revisedFebruary 4, 2024
- acceptedFebruary 21, 2024
- publishedMay 20, 2024
Abstract
Pontianak is the capital city of West Kalimantanprovince, which is affected by forest fires, especially forests onpeatlands that also burn peat. The forest and peatland firesproduce a lot of smoke-content particulates because ofincomplete combustion of underground biomass. This paperinvestigates the PM2.5 concentration in 2021 coinciding withmoderate La Nina when the effect of a short dry season does notsupport the occurrence of fires. PM2.5 concentration is analyzedby considering the air quality standard, atmospheric stability,and hotspot account observed by the SNPP satellite in the areawith a radius of less than 0.5%, 1%, and 2%. Analysis of the hotspotcounts shows a good relationship with the dry season pattern inequatorial rainfall-type regions. Forest fires at locations lessthan 0.5% and strong inversion layers created heavy pollution inPontianak, where the air environment is at dangerous levels,with daily concentrations exceeding the National Ambient AirQuality Standards and WHO air quality guidelines. Seasonalanalysis shows a very high concentration difference in day andnight in the December, January Febturay (DJF) and March,April, May (MAM) periods. This is related to the inversion eventat 07:00, where there were many double inversions during theDJF and MAM periods, namely surface inversion andsubsidence inversion, causing particulate matter to settle on theearth’s surface.
Keywords
- air quality
- PM2.5
- hotspot
- temperature inversion
How to Cite
Sumaryati, Saipul Hamdi, Atep Radiana, Syafrijon, Risyanto, Lambang Nurdiansah, Angga Y. Putra, and Estiningtyas Kusumastuti, "The Impact of Atmospheric Stability Affected by Peat Forest Fire on Surface PM2.5 Concentration in Pontianak Urban Area during La Nina Events 2022," International Journal of Environmental Science and Development, vol. 15, no. 3, pp. 110-116, 2024. https://doi.org/10.18178/ijesd.2024.15.3.1475
Copyright & License
Copyright © 2024 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).