Acetaldehyde and formaldehyde concentrations from sites impacted by heavy-duty diesel vehicles and their correlation with the fuel composition: Diesel and diesel/biodiesel blends

Rodrigues, Marina C.; Guarieiro, Lílian Lefol Nani; Cardoso, Manuela; Carvalho, Luiz Souza; Rocha, Gisele O. da; Andrade, Jaílson Bittencourt de

doi:10.1016/j.fuel.2011.07.023

Cited by 62 publications

(39 citation statements)

References 29 publications

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“…In general, the addition of higher concentrations of biodiesel to diesel make an improvement in the carbonyl concentration profile at places with high circulation of heavy-duty vehicles, bringing profiles down to levels found at sites less impacted by these kind of vehicles [42].…”

Section: Biofuels -Economy Environment and Sustainabilitymentioning

confidence: 99%

“…Taking into account important concerns of CC for atmospheric chemistry and their negative impact on human health, the levels of carbonyls and their diurnal variability can be an effective indicator reflecting the status of local air pollution. In this sense, correlations between major aldehydes emitted by vehicles and the level of pollution of these compounds in sites impacted by this source are still relatively scarce [42]. The most observed toxic effects to human health by some CC are irritation of skin, eyes and nasopharyngeal membranes [66].…”

Section: Emissions Chemical and Physical Compositionmentioning

confidence: 99%

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Vehicle Emissions: What Will Change with Use of Biofuel?

Guarieiro¹,

Guarieiro²

2013

Biofuels - Economy, Environment and Sustainability

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Section: Biofuels -Economy Environment and Sustainabilitymentioning

confidence: 99%

Section: Emissions Chemical and Physical Compositionmentioning

confidence: 99%

Vehicle Emissions: What Will Change with Use of Biofuel?

Guarieiro¹,

Guarieiro²

2013

Biofuels - Economy, Environment and Sustainability

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“…Many previous studies mentioned that the public transportations are the most important anthropogenic emission sources of those particulate and gaseous components in PM 2.5 , including toxic compounds (PAHs) (Liu et al, 2016;Pongpiachan, 2016), nitro-compounds (Allen et al, 1996;da Rocha et al, 2009;Bakeas et al, 2011;Cheruiyot et al, 2015), water soluble ions and metal elements (Zheng et al, 2016), carbonyl-compounds (Rodrigues et al, 2012;Ballesteros et al, 2014;Fujii et al, 2016) and organic/elemental carbon in urban areas. Nevertheless, the particle emissions generated by vehicles varied widely, depending on the human activities.…”

Section: Introductionmentioning

confidence: 99%

Reduction of Atmospheric PM2.5 Level by Restricting the Idling Operation of Buses in a Busy Station

Lee

Lin

Aniza

et al. 2017

Aerosol Air Qual. Res.

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Fine particulate matter (PM 2.5 ) has been found to be harmful when inhaled by people, which has caused enormous health problems. It is found at high levels at public bus stations, where many passengers and workers may be exposed to PM 2.5 emissions from idling diesel engines. This study evaluated the restriction on idling vehicles as a strategy to control PM 2.5 levels at bus stations by measuring the PM 2.5 and the chemical properties at both upwind and exposure sites for comparable data. The sampling took place on weekends and weekdays and before and after the idling restriction was applied. Originally, the exposure site showed a PM 2.5 level that was 7% higher, non-neutralized nitrate content, anthropogenic metal elements, and higher mobile source contributions, as evaluated by a chemical mass balance model (CMB8.2). After the prohibition on idling heavy-duty diesel vehicles, the PM 2.5 mass concentrations at the exposure site were reduced to levels comparable to those at the upwind site. Additionally, the nitrate content was reduced in the background. Moreover, the contributions of several anthropogenic metals (Zn, Pb, Mn, Cu, Cr, V, Ni, and Ti) in PM 2.5 were reduced while those of crustal elements (Na, Mg, Al, K, and Ca) significantly increased after the restriction. Finally, the mobile contribution decreased to only 33.7-34.5%. Consequently, these findings verify that the prohibition policy on idling vehicles works well as a control strategy to manage the PM 2.5 emissions at local hotspots such as bus stations.

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“…These reductions depend on the type of biofuel and its percentage in the blends with mineral diesel fuel [1,2]. Furthermore, it does not contribute to a net rise in the level of carbon dioxide in the atmosphere and minimizes the intensity of the greenhouse effect [3,4]. Biodiesel is also better than diesel in terms of aromatic content and biodegradability [5,6].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Biodiesel-Diesel Blended Fuel Properties and Engine Performance with Ether Additive Using Statistical Analysis and Response Surface Methods

et al. 2015

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Abstract:In this study, the fuel properties and engine performance of blended palm biodiesel-diesel using diethyl ether as additive have been investigated. The properties of B30 blended palm biodiesel-diesel fuel were measured and analyzed statistically with the addition of 2%, 4%, 6% and 8% (by volume) diethyl ether additive. The engine tests were conducted at increasing engine speeds from 1500 rpm to 3500 rpm and under constant load. Optimization of independent variables was performed using the desirability approach of the response surface methodology (RSM) with the goal of minimizing emissions and maximizing performance parameters. The experiments were designed using a statistical tool known as design of experiments (DoE) based on RSM.

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Acetaldehyde and formaldehyde concentrations from sites impacted by heavy-duty diesel vehicles and their correlation with the fuel composition: Diesel and diesel/biodiesel blends

Cited by 62 publications

References 29 publications

Vehicle Emissions: What Will Change with Use of Biofuel?

Vehicle Emissions: What Will Change with Use of Biofuel?

Reduction of Atmospheric PM2.5 Level by Restricting the Idling Operation of Buses in a Busy Station

Optimization of Biodiesel-Diesel Blended Fuel Properties and Engine Performance with Ether Additive Using Statistical Analysis and Response Surface Methods

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