DOI: 10.1016/j.atmosenv.2014.07.028
Scopus记录号: 2-s2.0-84904258569
论文题名: Alkyl polycyclic aromatic hydrocarbons emissions in diesel/biodiesel exhaust
作者: Casal C ; S ; , Arbilla G ; , Corrêa S ; M
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 96 起始页码: 107
结束页码: 116
语种: 英语
英文关键词: Alkyl PAH
; Biodiesel
; Diesel
; Emission
; GC-MS
Scopus关键词: Biodiesel
; Diesel engines
; Neutron emission
; Toxicity
; Diesel
; Diesel engine cycles
; Environmental agency
; Environmental matrixes
; GC-MS
; Initial temperatures
; Polycyclic aromatic hydrocarbons (PAHS)
; Priority pollutants
; Polycyclic aromatic hydrocarbons
; biodiesel
; diesel fuel
; polycyclic aromatic hydrocarbon
; solvent
; ambient air
; atmospheric pollution
; biofuel
; carcinogen
; diesel engine
; exhaust emission
; PAH
; particulate matter
; solvent
; temperature effect
; toxicity
; air pollution
; alkylation
; ambient air
; article
; carcinogenicity
; developed country
; diesel engine
; dynamometer
; limit of detection
; mutagenicity
; priority journal
; sediment
; temperature
; velocity
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: Polycyclic aromatic hydrocarbons (PAHs) are widely studied in environmental matrices, such as air, water, soil and sediment, because of their toxicity, mutagenicity and carcinogenicity. Because of these properties, the environmental agencies of developed countries have listed sixteen PAHs as priority pollutants. Few countries have limits for these compounds for ambient air, but they only limit emissions from stationary and mobile sources and occupational areas. There are several studies to specifically address the 16 priority PAHs and very little for the alkyl PAHs. These compounds are more abundant, more persistent and frequently more toxic than the non-alkylated PAHs, and the toxicity increases with the number of alkyl substitutions on the aromatic ring. In this study, a method was developed for the analysis of PAHs and alkyl PAHs by using a GC-MS and large injection volume injection coupled with program temperature vaporisation, which allows for limits of detection below 1.0ngμL-1. Several variables were tested, such as the injection volume, injection velocity, injector initial temperature, duration of the solvent split and others. This method was evaluated in samples from particulate matter from the emissions of engines employing standard diesel, commercial diesel and biodiesel B20. Samples were collected on a dynamometer bench for a diesel engine cycle and the results ranged from 0.5 to 96.9ngmL-1, indicating that diesel/biodiesel makes a significant contribution to the formation of PAHs and alkyl PAHs. © 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81256
Appears in Collections: 气候变化事实与影响
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作者单位: Rio de Janeiro State University, Faculty of Technology, Resende, RJ 27537-000, Brazil; Rio de Janeiro Federal University, Chemistry Institute, 21949-900 Rio de Janeiro, Brazil
Recommended Citation:
Casal C,S,, Arbilla G,et al. Alkyl polycyclic aromatic hydrocarbons emissions in diesel/biodiesel exhaust[J]. Atmospheric Environment,2014-01-01,96