DOI: 10.1016/j.atmosenv.2015.07.003
Scopus记录号: 2-s2.0-84937060597
论文题名: Mass loading and episodic variation of molecular markers in PM<inf>2.5</inf> aerosols over a rural area in eastern central India
作者: Nirmalkar J ; , Deshmukh D ; K ; , Deb M ; K ; , Tsai Y ; I ; , Sopajaree K
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 117 起始页码: 41
结束页码: 50
语种: 英语
英文关键词: Biomass burning tracer
; Dicarboxylic acids
; Levoglucosan
; PM2.5 aerosols
; Source identification
; Sugars
Scopus关键词: Aerosols
; Air quality
; Biomass
; Chromatography
; Developing countries
; Glucose
; Ion chromatography
; Oxalic acid
; Principal component analysis
; Rural areas
; Sugars
; Agricultural activities
; Air quality parameters
; Biomass burning emissions
; Biomass-burning
; Dicarboxylic acid
; Levoglucosan
; Scientific community
; Source identification
; Atmospheric aerosols
; carbohydrate
; carbromal
; dicarboxylic acid
; glucose
; levoglucosan
; maleic acid
; mannitol
; molecular marker
; oxalic acid
; potassium
; aerosol
; air quality
; alcohol
; atmospheric pollution
; biomass burning
; concentration (composition)
; developing world
; emission inventory
; episodic event
; glucose
; human activity
; oxalic acid
; particulate matter
; pollutant source
; pollution monitoring
; potassium
; rural area
; spatiotemporal analysis
; air quality
; air sampling
; Article
; biomass production
; chemical analysis
; chemical composition
; combustion
; cooking
; correlation analysis
; heating
; India
; ion pair chromatography
; particulate matter
; principal component analysis
; priority journal
; rural area
; India
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The impact of biomass burning in atmospheric aerosols load is poorly known. We investigated the impact of biomass burning through molecular markers on the concentration of PM2.5 aerosol samples collected from a rural site in eastern central India during three episodic periods from October to November 2011. The collected PM2.5 samples were chemically quantified for potassium as well as sugars and dicarboxylic acids using ion chromatography. Levoglucosan and glucose were found as the most abundant sugar compounds and sugar-alcohols showed the predominance of mannitol whereas oxalic acid was the most abundant diacid followed by maleic acid in PM2.5 aerosols. Substantially enhanced concentrations of K+ as well as levoglucosan and glucose were observed in eastern central India. Analysis of the source specific molecular markers and ratios of sugars and diacids infer that combustion of biomass was the major emission sources of organic compounds associated with PM2.5 aerosols over eastern central India. We applied Spearman correlation analysis and principal component analysis to further investigate the sources of measured sugars and diacids. The concentrations of K+ and levoglucosan were significantly correlated with sugars and diacids that verifying their common sources from biomass burning emission. This study demonstrates that biomass burning for domestic heating and cooking purposes and agricultural activities significantly influence the air quality of eastern central India during the investigation period. The obtained data in this research is helpful for the global scientific community to assessments and remedial of air quality parameters in rural areas of developing countries under similar atmospheric circumstances. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81605
Appears in Collections: 气候变化事实与影响
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作者单位: School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur, India; Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan; Department of Environmental Engineering and Science, Chia Nan University of Pharmacy and Science, Tainan, Taiwan; Department of Environmental Engineering, Chiang Mai University, Chiang Mai, Thailand
Recommended Citation:
Nirmalkar J,, Deshmukh D,K,et al. Mass loading and episodic variation of molecular markers in PM<inf>2.5</inf> aerosols over a rural area in eastern central India[J]. Atmospheric Environment,2015-01-01,117