| DOI: | 10.1016/j.atmosenv.2015.02.066
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| Scopus记录号: | 2-s2.0-84923916230
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| 论文题名: | Investigation of the tracers for plastic-enriched waste burning aerosols |
| 作者: | Kumar S; , Aggarwal S; G; , Gupta P; K; , Kawamura K
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| 刊名: | Atmospheric Environment
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| ISSN: | 0168-2563
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| EISSN: | 1573-515X
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| 出版年: | 2015
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| 卷: | 108 | | 起始页码: | 49
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| 结束页码: | 58
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| 语种: | 英语
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| 英文关键词: | Chemical composition
; Diacids
; Metals
; Phthalic acid formation pathway
; Plastic waste burning aerosol
; Tracer
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| Scopus关键词: | Cadmium
; Carboxylic acids
; Esters
; Incineration
; Laboratories
; Metals
; Tin
; Urban growth
; Chemical compositions
; Diacids
; Formation pathways
; Plastic wastes
; Tracer
; Aerosols
; carboxylic acid
; dicarboxylic acid
; ion
; nitrogen
; oxocarboxylic acid
; phthalic acid
; plastic
; terephthalic acid
; tracer
; unclassified drug
; abundance
; aerosol
; aerosol property
; anthropogenic effect
; burning
; environmental assessment
; filter
; landfill
; plastic
; waste disposal
; air sampling
; Article
; chemical composition
; landfill
; open waste burning aerosol
; photodegradation
; priority journal
; solid waste management
; waste disposal
; Delhi
; India
; New Delhi
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| Scopus学科分类: | Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
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| 英文摘要: | To better identify the tracers for open-waste burning (OWB) aerosols, we have conducted aerosol sampling at 2 landfill sites, i.e., Okhla and Bhalswa in New Delhi. The metals such as, As, Cd, Sb and Sn, which have been observed almost negligible in remote aerosols, are found abundantly in these OWB aerosol samples (n=26), i.e., 60±65, 41±53, 537±847 and 1325±1218ngm-3, respectively. Samples (n=20) collected at urban locations in New Delhi, i.e., at Employees' State Insurance (ESI) hospital and National Physical Laboratory (NPL) also show high abundances of these metals in the particles. Filter samples are also analyzed for water-soluble dicarboxylic acids (C2-C12) and related compounds (oxocarboxylic acids and α-dicarbonyls). Terephthalic acid (tPh) was found to account for more than 77% of total diacids determined in OWB aerosols. However, such a high abundance of tPh is not observed in aerosols collected at urban sites. Instead, phthalic acid (Ph) was found as the third/fourth most abundant diacid (~3%) following C2 (>70%) and C4 (>12%) in these waste burning influenced urban aerosols. A possible secondary formation pathway of Ph by photo-degradation of phthalate ester (di-2-ethylhexyl phthalate) in plastic-waste burning aerosol is suggested. Ionic composition of OWB aerosols showed that Cl- is the most abundant ion (40±8% of total ions determined). The correlation studies of the potential metals with the organic tracers of garbage burning, i.e., phthalic, isophthalic and terephthalic acids show that especially Sn can be used as marker for tracing the plastic-enriched waste burning aerosols. © 2015. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/81820
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | CSIR-National Physical Laboratory, Dr. K.S. Krishnan Marg, New Delhi, India; Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan
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| Recommended Citation: | |
Kumar S,, Aggarwal S,G,et al. Investigation of the tracers for plastic-enriched waste burning aerosols[J]. Atmospheric Environment,2015-01-01,108
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