首页|Size-fractionated carbonaceous particles and climate effects in the eastern region of Myanmar

Size-fractionated carbonaceous particles and climate effects in the eastern region of Myanmar

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This study reports on an investigation of fine and coarse carbonaceous particulate matters(PM)in Tachileik,eastern Myanmar,during the dry and wet seasons of 2022.The carbon compositions,including organic carbon(OC)and elemental carbon(EC),in each size(PM10-2.5,PM2.5-1.0,and PM1.0-0.5)were determined by a carbon analyzer.The average total mass concentration of the three fractions of particle samples during the dry season was higher(51.23±23.86 μg/m3)than that of the wet season(14.00±5.26 μg/m3).The results indicate that OC and EC levels were highest for PM1.0-0.5 during the dry season and the sizes were similar for both seasons.The OC/EC ratios varied in different seasons,from 1.93 to 4.40 and 4.13 to 5.25 in the dry and wet seasons,respectively.EC was sub-divided into char-EC and soot-EC;the char-EC/soot-EC in the dry season was higher than in the wet season,signifying that biomass burning is the main particle source during the dry season.However,vehicle emissions domi-nated during the wet season.The effective carbon ratio(ECR)suggested that finer particles contributed more to global warming.This information is important in terms of air quality control and mitigation in Myanmar and elsewhere.

Air qualityBiomass burningCarbonCoarse particlesFine particlesMyanmar

Mai Kai Suan Tial、Nwe Nwe Kyi、Muhammad Amin、Mitsuhiko Hata、Masami Furuuchi、Rahmi Mulia Putri、Phakphum Paluang、Phuchiwan Suriyawong、Worradorn Phairuang

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Department of Electrical Power Engineering,Yangon Technological University,Yangon,11011,Myanmar

Faculty of Geosciences and Civil Engineering,Institute of Science and Engineering,Kanazawa University,Kanazawa,Ishikawa,920-1192,Japan

Faculty of Engineering,Maritim University of Raja Ali Haji,Tanjung Pinang,Kepulauan Riau 29115,Indonesia

Graduate School of Natural Science and Technology,Kanazawa University,Kanazawa,Ishikawa,920-1192,Japan

Department of Geography,Faculty of Social Sciences,Chiang Mai University,Muang,Chiang Mai,50200,Thailand

Research Unit for Energy Economics and Ecological Management,Multidisciplinary Research Institute,Chiang Mai University,Muang,Chiang Mai,50200,Thailand

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JICA-JST SATREPS

JPMJSA2102

2024

10.1016/j.partic.2023.11.010

颗粒学报(英文版)
中国颗粒学会　中国科学院过程工程研究所

颗粒学报(英文版)

CSTPCD
影响因子：0.632
ISSN：1674-2001
年,卷(期)：2024.90(7)
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