Emissions of Particulate Trace Elements, Metals and Organic Species from Gasoline, Diesel, and Biodiesel Passenger Vehicles and Their Relation to Oxidative Potential

Cheung, Kalam; Ntziachristos, Leónidas; Tzamkiozis, Theodoros; Schauer, James J.; Samaras, Zissis; Moore, Katharine F.; Sioutas, Constantinos

doi:10.1080/02786821003758294

Cited by 198 publications

(145 citation statements)

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“…High correlations with hopanes, in addition to OC and PAHs, have also been reported in some studies [12,15,26,42,61,63], while Shirmohammadi et al [27] found high correlations with hopanes, n-alkanes, and organic acids (phthalic, succinic, and glutaric). Differently from above, in Perrone et al [44], the methanol-soluble DTT activity of PM exhibited negative correlations with most chemical constituents including n-alkanes, being positively correlated mainly with global radiation, which was considered as a proxy for secondary oxidizing organics.…”

Section: Correlations Between Dtt Activity and Organic Aerosol Componmentioning

confidence: 89%

On the Redox Activity of Urban Aerosol Particles: Implications for Size Distribution and Relationships with Organic Aerosol Components

Samara

2017

Atmosphere

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This article presents the distribution of the dithiothreitol-based (DTT) redox activity of water-soluble airborne particulate matter (PM) from two urban sites in the city of Thessaloniki, northern Greece in four size ranges (<0.49, 0.49-0.97, 0.97-3.0 and >3 µm). Seasonal and spatial variations are examined. The correlations of the mass-normalized DTT activity with the content of PM in water-soluble organic carbon (WSOC) and non-water-soluble carbonaceous species, such as organic and elemental carbon, as well as with solvent-extractable trace organic compounds (polycyclic aromatic hydrocarbons and nitro-derivatives, polychlorinated biphenyls, organochlorines, polybrominated biphenyl ethers) and polar organic markers (dicarboxylic acids and levoglucosan), are investigated. Our study provides new and additional insights into the ambient size distribution of the DTT activity of the water-soluble fraction of airborne PM at urban sites and its associations with organic PM components.

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Section: Correlations Between Dtt Activity and Organic Aerosol Componmentioning

confidence: 89%

On the Redox Activity of Urban Aerosol Particles: Implications for Size Distribution and Relationships with Organic Aerosol Components

Samara

2017

Atmosphere

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“…3a and b). The FFC factor concentration is weakly or moderately correlated to Ca, P, Fe, Cu, Cr, Mn, and Zn (r = 0.3-0.5), which have been identified as tracers of vehicle emissions Cheung et al, 2010).…”

Section: Organic Mass and Compositionmentioning

confidence: 99%

High summertime aerosol organic functional group concentrations from marine and seabird sources at Ross Island, Antarctica, during AWARE

et al. 2018

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Abstract. Observations of the organic components of the natural aerosol are scarce in Antarctica, which limits our understanding of natural aerosols and their connection to seasonal and spatial patterns of cloud albedo in the region. From November 2015 to December 2016, the ARM West Antarctic Radiation Experiment (AWARE) measured submicron aerosol properties near McMurdo Station at the southern tip of Ross Island. Submicron organic mass (OM), particle number, and cloud condensation nuclei concentrations were higher in summer than other seasons. The measurements included a range of compositions and concentrations that likely reflected both local anthropogenic emissions and natural background sources. We isolated the natural organic components by separating a natural factor and a local combustion factor. The natural OM was 150 times higher in summer than in winter. The local anthropogenic emissions were not hygroscopic and had little contribution to the CCN concentrations. Natural sources that included marine sea spray and seabird emissions contributed 56 % OM in summer but only 3 % in winter. The natural OM had high hydroxyl group fraction (55 %), 6 % alkane, and 6 % amine group mass, consistent with marine organic composition. In addition, the Fourier transform infrared (FTIR) spectra showed the natural sources of organic aerosol were characterized by amide group absorption, which may be from seabird populations. Carboxylic acid group contributions were high in summer and associated with natural sources, likely forming by secondary reactions.

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“…The FFC factor was 73% of organic mass in winter but only 23% in summer (Figure 3 (a) and (b)). The FFC factor concentration is weakly or moderately correlated to Ca, P, Fe, Cu, Cr, Mn and Zn (r=0.3~0.5), which have been identified as tracers of vehicle emissions Cheung et al, 2010) .…”

Section: Organic Mass and Compositionmentioning

confidence: 99%

High Summertime Aerosol Organic Functional Group Concentrations from Marine and Seabird Sources at Ross Island, Antarctica, during AWARE

Liu¹,

Dedrick²,

Russell³

et al. 2018

Preprint

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Abstract.From November 2015 to December 2016, the ARM West Antarctic Radiation Experiment (AWARE) measured submicron 15 aerosol properties near McMurdo Station at the southern tip of the Ross Island. Submicron organic mass (OM), particle number, and cloud condensation nuclei concentrations were higher in summer than other seasons. The measurements included a range of compositions and concentrations that likely reflected both local anthropogenic emissions and natural background sources. We isolated the natural organic components by separating a natural factor and a local combustion factor. The natural OM was 150 times higher in summer than in winter. The local anthropogenic emissions were not 20 hygroscopic and had little contribution to the CCN concentrations. Natural sources that included marine sea spray and seabird emissions contributed 56 % of OM in the austral summer but only 3 % in the austral winter. The natural OM had high hydroxyl group fraction (55%), 6% alkane, and 6% amine group mass, consistent with marine organic composition. In addition, the Fourier transform infrared (FTIR) spectra showed the natural sources of organic aerosol were characterized by amide group absorption, which may be from seabird populations. Carboxylic acid group contributions from natural sources 25 were correlated to incoming solar radiation, indicating that some OM formed by secondary pathways.

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Emissions of Particulate Trace Elements, Metals and Organic Species from Gasoline, Diesel, and Biodiesel Passenger Vehicles and Their Relation to Oxidative Potential

Cited by 198 publications

References 50 publications

On the Redox Activity of Urban Aerosol Particles: Implications for Size Distribution and Relationships with Organic Aerosol Components

On the Redox Activity of Urban Aerosol Particles: Implications for Size Distribution and Relationships with Organic Aerosol Components

High summertime aerosol organic functional group concentrations from marine and seabird sources at Ross Island, Antarctica, during AWARE

High Summertime Aerosol Organic Functional Group Concentrations from Marine and Seabird Sources at Ross Island, Antarctica, during AWARE

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