Determination of size-segregated polycyclic aromatic hydrocarbon and its nitro and alkyl analogs in emissions from diesel-biodiesel blends

Corrêa, Sérgio Machado; Arbilla, Graciela; Silva, Cleyton Martins da; Martins, Eduardo Monteiro; Souza, Simone Lorena Quiterio de

doi:10.1016/j.fuel.2020.118912

Cited by 12 publications

(7 citation statements)

References 32 publications

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“…In the diesel exhaust extract, Phe and Flt were the dominant PAHs, similarly to the study of de Souza and Corrêa ( 2016 ) (Table 1 ). In addition to Phe and Flt, 4-ring Pyr was found dominant in the study of Corrêa et al ( 2021 ). Dominance of these PAHs was reported in other studies as well (Fabiańska et al 2016 ; Lin et al 2019 ).…”

Section: Resultsmentioning

confidence: 84%

Accumulation pattern of polycyclic aromatic hydrocarbons using Plantago lanceolata L. as passive biomonitor

Hubai

Kováts

Sainnokhoi

et al. 2021

Environ Sci Pollut Res

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Biomonitors are considered a cheap alternative of active air samplers, especially where spatial pattern of air quality is to be monitored, requiring numerous parallel measurements. Of higher plants, Plantago lanceolata L. has been proven a good monitor species with proper accumulation capacity. While biomonitoring studies are difficult to compare due to inherent errors such as the diverse plant material used in different studies, the No. 227 OECD GUIDELINE FOR THE TESTING OF CHEMICALS: Terrestrial Plant Test: Vegetative Vigour Test provides a tool to test extract of aerosol samples under controlled laboratory conditions. In our study, this guideline was followed to experimentally treat Plantago with the aqueous extract of a diesel exhaust sample. Accumulation pattern of polyaromatic hydrocarbons (PAHs) was assessed and compared to samples collected in the field. Unlike most studies reported in the literature, both in the experimentally treated and field Plantago samples, high ratio of high molecular weight PAHs was experienced. Distribution pattern of accumulated PAHs showed strong correlation between the experimentally treated sample and most of the field plantain samples, underlying the usefulness of laboratory treatments for bioaccumulation studies.

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Section: Resultsmentioning

confidence: 84%

Accumulation pattern of polycyclic aromatic hydrocarbons using Plantago lanceolata L. as passive biomonitor

Hubai

Kováts

Sainnokhoi

et al. 2021

Environ Sci Pollut Res

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“…These particles differ in size, composition, and solubility, which can directly influence their possible toxic properties. Its physical and chemical characteristics also depend on different parameters such as fuel properties, engine type, operating conditions, fuel injection mode, vehicle age and type, and after-treatment technology (Corrêa et al 2021 ; Kontses et al, 2019 ; Verma et al 2019 ).…”

Section: Introductionmentioning

confidence: 99%

“…However, studies mentioned in these reviews discuss the impact of biodiesels and their blends on exhaust emissions of regulated pollutants (CO, HC, NO x , and PM) by environmental legislation in several countries. On the other hand, among unregulated pollutants, carbonyl compounds, BTEX (benzene, toluene, ethylbenzene, o-xylene, m-xylene, and p-xylene), EC, OC, total carbon (TC = EC + OC), and PAHs were the most characterised (Amaral et al 2017 ; Bakeas and Karavalakis 2013 ; Bório et al 2019 ; Borrás et al 2009 ; Casal et al 2014 ; Chiang et al 2012 ; Corrêa et al 2021 ; Corrêa and Arbilla 2006 ; Ferreira et al 2008 ; Karavalakis et al 2009 , 2010a ; Li et al 2018 ; Lim et al 2014 ; Martins et al 2012 ; Wang et al 2021 ). Cheung et al ( 2010 ) conducted a more detailed study in a chassis dynamometer and determined emission factors (EFs) of particulate trace elements, metals, and solvent-extractable organic species (PAHs, hopanes, steranes, n-alkanes, and organic acids) from diesel or biodiesel passenger vehicles.…”

Section: Introductionmentioning

confidence: 99%

“…Rocha and Corrêa ( 2018 ) have characterised metals in coarse, micrometric, ultrafine, and nanoparticles in exhaust emissions from a typical diesel engine used by buses and trucks in Brazil fuelled with diesel-biodiesel blends. Size-segregated PAHs, nitro-PAHs, and alkyl-PAHs in emissions from diesel-biodiesel blends were studied by Corrêa et al ( 2021 ). The volatile fraction (VOF) and the EC content in PM emissions were analysed according to different particle sizes, and the subsequent effect of oxygen content in biodiesel on the size-resolved characteristics of PM emissions was discussed by He et al ( 2017 ).…”

Section: Introductionmentioning

confidence: 99%

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Exhaust emissions of gaseous and particle size-segregated water-soluble organic compounds from diesel-biodiesel blends

Evtyugina

Gonçalves

Alves

et al. 2023

Environ Sci Pollut Res

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This study assessed the emissions of gaseous pollutants and particle size distributed water-soluble organics (WSO) from a diesel vehicle fuelled with ultralow sulphur diesel (B0) and 10 (B10), 20 (B20), and 30% (B30) biodiesel blends in a chassis dynamometer tested under transient mode. Particulate emission sampling was carried out in an ultraviolet (UV) test chamber using a 10-stage impactor. Samples were grouped into three size fractions and analysed by gas chromatography-mass spectrometry. Increasing the biofuel ratio up to 30% in the fuel reduced WSO emissions by 20.9% in comparison with conventional diesel. Organic acids accounted for 82–89% of WSO in all tested fuels. Dicarboxylic acids were the most abundant compound class, followed by hydroxy, aromatic, and linear alkanoic acids. Correlations between compounds demonstrated that adding biodiesel to diesel fuel reduces the emissions of nitrogen oxides (NOx), benzene, toluene, ethylbenzene and xylenes (BTEX), methane (CH4), total and nonmethane hydrocarbons (THC and NMHC), and dicarboxylic and hydroxy acids, but increases emissions of carbon dioxide (CO2) and alkanoic and aromatic acids. Emissions of dicarboxylic and hydroxy acids were strongly correlated with the biodiesel content. WSO emissions of coarse and fine (1.0–10 μm) particles decreased with the increasing biofuel content in fuel blend. The total share of ultrafine (0.18–1.0 μm) and nanoparticles (< 0.18 μm) increased in WSOs emissions from B20 and B30 blends, when compared with petrodiesel. The biodiesel content also affected the chemical profile of WSO size fractions.

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“…Estudios recientes han concluido que los nitro-HAPs pueden inducir a una producción excesiva de especies reactivas de oxígeno en el cuerpo humano, lo que lleva al estrés oxidativo, que es un evento bioquímico y la causa patológica de muchas enfermedades (Corrêa et al, 2021).…”

Section: Exposición Y Efectos a La Saludunclassified

Variación temporal de nitro-HAPs asociados a partículas PM2.5 en la atmosfera de las ciudades de Cuernavaca y Cuautla

Lupercio¹

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Due to the damage they cause to the health of the population as a result of their composition, PM2.5 is a very important indicator of air quality in urban areas. Some polycyclic aromatic nitro-hydrocarbons (nitro-PAHs) associated with the particles have been observed to be mutagenic and carcinogenic. In order to observe the variation of the concentration at different times of the year, the nitro-HAPs in PM2.5 emitted in the city of Cuernavaca during the period from March 2016 to August 2018 and for Cuautla during the period of April 2017 to December 2018. It is reported that the lowest concentration of nitro-PAHs occurred in the rainy season (LL), with a median of 63.82 pg / m-3 for Cuernavaca and 90.67 pg / m-3 for Cuautla. It was hypothesized that Cuernavaca during the dry-cold season (SF) was the one with the highest concentration of nitro-PAHs, however, no significant difference was found (p <0.05) with respect to the dry-hot season (SC). The median concentrations in the SC and Seseasons were 116.41 pg m-3 and 128.99 pg m-3, respectively. However, in Cuautla significant differences (p <0.05) were observed between the SF and SC periods. Median concentrations for SC were 280.74 pg m-3 and for SF 156.61 pg m-3. 1-Nitronaphthalene, 2-Nitrofentranene, 2-Nitroanthracene, and 2-Nitrofluoranthene were the most abundant compounds present at both sites. Nitro-HaPs showed significant correlations (p <0.05) with relative humidity and wind speed, as well as with some criteria pollutants. 1-Nitronaphthalene, 2-Nitronaphthalene, 2-Nitrofluorene, and 3-Nitrofluoren are classified by IARC as possible carcinogens for humans, these compounds were found in the three seasons in the cities of Cuernavaca and Cuautla.

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Determination of size-segregated polycyclic aromatic hydrocarbon and its nitro and alkyl analogs in emissions from diesel-biodiesel blends

Cited by 12 publications

References 32 publications

Accumulation pattern of polycyclic aromatic hydrocarbons using Plantago lanceolata L. as passive biomonitor

Accumulation pattern of polycyclic aromatic hydrocarbons using Plantago lanceolata L. as passive biomonitor

Exhaust emissions of gaseous and particle size-segregated water-soluble organic compounds from diesel-biodiesel blends

Variación temporal de nitro-HAPs asociados a partículas PM2.5 en la atmosfera de las ciudades de Cuernavaca y Cuautla

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