DOI: 10.1016/j.atmosenv.2014.11.068
Scopus记录号: 2-s2.0-84916925576
论文题名: Influence of ozone initiated processing on the toxicity of aerosol particles from small scale wood combustion
作者: Nordin E ; Z ; , Uski O ; , Nyström R ; , Jalava P ; , Eriksson A ; C ; , Genberg J ; , Roldin P ; , Bergvall C ; , Westerholm R ; , Jokiniemi J ; , Pagels J ; H ; , Boman C ; , Hirvonen M ; -R
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 102 起始页码: 282
结束页码: 289
语种: 英语
英文关键词: Aging
; Biomass combustion
; Cell studies
; Polycyclic aromatic hydrocarbons
Scopus关键词: Aging of materials
; Atmospheric chemistry
; Combustion
; Ozone
; Particulate emissions
; Toxicity
; Biomass combustion
; Cell cycle analysis
; Chemical degradation
; Combustion condition
; Physical characterization
; Polycyclic aromatic hydrocarbons (PAHS)
; Toxicological effects
; Toxicological properties
; Polycyclic aromatic hydrocarbons
; chloride
; nitrate
; organic compound
; organic matter
; ozone
; polycyclic aromatic hydrocarbon
; potassium
; sulfate
; zinc
; aerosol
; atmospheric pollution
; biotransformation
; combustion
; emission
; genetic marker
; genotoxicity
; organic compound
; ozone
; particulate matter
; radical
; toxicity
; troposphere
; ultraviolet radiation
; wood
; aerosol
; animal cell
; apoptosis
; Article
; cell cycle
; cell viability
; combustion
; DNA damage
; genotoxicity
; inflammation
; macrophage
; mass spectrometry
; mouse
; nonhuman
; particulate matter
; wood
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: Black carbon containing emissions from biomass combustion are being transformed in the atmosphere upon processing induced by tropospheric ozone and UV. The knowledge today is very limited on how atmospheric processing affects the toxicological properties of the emissions.The aim of this study was to investigate the influence of ozone initiated (dark) atmospheric processing on the physicochemical and toxicological properties of particulate emissions from wood combustion.Emissions from a conventional wood stove operated at two combustion conditions (nominal and hot air starved) were diluted and transferred to a chamber. Particulate matter (PM) was collected before and after ozone addition to the chamber using an impactor. Detailed chemical and physical characterization was performed on chamber air and collected PM. The collected PM was investigated toxicologically invitro with a mouse macrophage model, endpoints included: cell cycle analysis, viability, inflammation and genotoxicity.The results suggest that changes in the organic fraction, including polycyclic aromatic hydrocarbons (PAHs) are the main driver for differences in obtained toxicological effects. Fresh hot air starved emissions containing a higher organic and PAH mass-fraction affected cell viability stronger than fresh emissions from nominal combustion. The PAH mass fractions decreased upon aging due to chemical degradation. Dark aging increased genotoxicity, reduced viability and reduced release of inflammatory markers. These differences were statistically significant for single doses and typically less pronounced. We hypothesize that the alterations in toxicity upon simulated dark aging in the atmosphere may be caused by reaction products that form when PAHs and other organic compounds react with ozone and nitrate radicals. © 2014 The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82051
Appears in Collections: 气候变化事实与影响
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作者单位: Ergonomics and Aerosol Technology, Lund University, P.O. Box 118, Lund, Sweden; Department of Environmental Health, National Institute for Health and Welfare, P.O. Box 95, Kuopio, Finland; Department of Environmental Science, University of Eastern Finland, P.O. Box 1627, Kuopio, Finland; Thermochemical Energy Conversion Laboratory, Dept. of Applied Physics and Electronics, Umeå University, Umeå, Sweden; Nuclear Physics, Lund University, P.O. Box 118, Lund, Sweden; Department of Analytical Chemistry, Stockholm University, Stockholm, Sweden; VTT Technical Research Centre of Finland, P.O. Box 1000, Finland
Recommended Citation:
Nordin E,Z,, Uski O,et al. Influence of ozone initiated processing on the toxicity of aerosol particles from small scale wood combustion[J]. Atmospheric Environment,2015-01-01,102