Please Just Try to Submit This Sample AbstractCharacteristics of PM2.5 in Pontianak as an area affected by forest fires Sumaryati, Estiningtyas, Risyanto, Saipul hamdi
National Research and Innovation Agency
Abstract
Peat land fire produces a lot of smoke-content particulate because of incomplete combustion of underground biomass. Pontianak the capital city of West Kalimantan is affected by peat land fires. This paper studies the particulate of PM2.5 in 2021 coinciding with moderate La Nina which short dry season effect not supported fire. PM2.5 concentration is analyzed by considering the air quality standard, atmospheric stability, and hotspot account in the area with a radius of less than 1-, 2-, and 3- observed by the SNPP satellite. Analysis of daily average PM2.5 concentrations during 2020 shows that 5% of data exceed National Ambient Air Quality Standard and 15% of data exceed WHO-air quality guidelines. The high increase in PM2.5 is related to the number of hotspots in an area with a radius of 1 (111 km), which hotspot accounts correlate with the equatorial rainfall pattern in the region. Seasonal analysis shows that there is a very high concentration difference in day and night in the DJF and MAM periods. This is thought to be related to the inversion event at 07.00 where during the MAM and DJF periods there were many double inversions, namely surface inversion, and subsidence inversion, causing particulate matter to settle on the earth^s surface.
