DOI: 10.1016/j.atmosenv.2015.02.064
Scopus记录号: 2-s2.0-84924048705
论文题名: On-road emissions of carbonyls from vehicles powered by biofuel blends in traffic tunnels in the Metropolitan Area of Sao Paulo, Brazil
作者: Nogueira T ; , de Souza K ; F ; , Fornaro A ; , Andrade M ; F ; , de Carvalho L ; R ; F
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 108 起始页码: 88
结束页码: 97
语种: 英语
英文关键词: Air pollution
; Aldehyde
; Emission factor
; Ethanol biofuel
; Megacity
; Vehicle emissions
Scopus关键词: Acetaldehyde
; Air pollution
; Aldehydes
; Biofuels
; Ethanol
; Fleet operations
; Formaldehyde
; Gasoline
; Roads and streets
; Vehicles
; Emission factors
; Experimental campaign
; Heavy duty vehicles
; Light duty vehicles
; Megacities
; Sao Paulo , Brazil
; Southeastern Brazil
; Vehicle emission
; Airships
; acetaldehyde
; alcohol
; aldehyde
; biodiesel
; biofuel
; carbonyl derivative
; formaldehyde
; gasoline
; ozone
; acetaldehyde
; atmospheric pollution
; carbonyl compound
; experimental design
; formaldehyde
; megacity
; metropolitan area
; traffic emission
; air pollution
; Article
; Brazil
; carbon footprint
; catalysis
; chemical composition
; diesel engine
; heavy duty vehicle
; light duty vehicle
; motor vehicle
; photochemistry
; priority journal
; radiation
; traffic
; United States
; Brazil
; California
; Sao Paulo [Brazil]
; United States
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: On-road emissions of carbonyls from the current vehicle fleet of Brazil were determined in two experimental campaigns, conducted in traffic tunnels located in the Metropolitan Area of São Paulo (MASP), in southeastern Brazil. Among carbonyl species, formaldehyde and acetaldehyde were the most abundant in all sampling periods. In Brazil, heavy-duty vehicles (HDVs) run on a blend of 95% regular diesel/5% biodiesel from soy, whereas light-duty vehicles (LDVs) run on gasohol (75-80% gasoline/20-25% ethanol) or hydrous ethanol. We found that HDVs showed the highest overall carbonyl emissions, although LDVs were responsible for high emissions of acetaldehyde. In comparison with LDVs in California, which are powered by 90% gasoline/10% ethanol, LDVs in Brazil were found to emit 352% and 263% more formaldehyde and acetaldehyde. © 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81797
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Department of Atmospheric Sciences, Institute of Astronomy, Geophysics and Atmospheric Sciences, University of São Paulo, São Paulo, Brazil; Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
Recommended Citation:
Nogueira T,, de Souza K,F,et al. On-road emissions of carbonyls from vehicles powered by biofuel blends in traffic tunnels in the Metropolitan Area of Sao Paulo, Brazil[J]. Atmospheric Environment,2015-01-01,108