Estimates of the contributions of biogenic and anthropogenic hydrocarbons to secondary organic aerosol at a southeastern US location

Kleindienst, Tadeusz E.; Jaoui, Mohammed; Lewandowski, Michael; Offenberg, John H.; Lewis, Charles; Bhave, Prakash V.; Edney, Edward O.

doi:10.1016/j.atmosenv.2007.06.045

Cited by 475 publications

(751 citation statements)

References 30 publications

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“…2,3-Dihydroxy-4-oxopentanoic acid (DHOPA) has been found to be a marker compound for toluene SOA. 16 Its concentrations ranged from 0.06−1.9 ng m −3 (0.62 ± 0.55 ng m −3 ) in winter, which were 1 order of magnitude higher than those (0.008−0.21 ng m −3 , 0.05 ± 0.055 ng m −3 ) in summer.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

“…Eight organic acids were identified as α/β-pinene oxidation products in the Mumbai aerosols, that is, 3-hydroxyglutaric acid, pinonic acid, pinic acid, 3-(2-hydroxyethyl)-2, 2-dimethylcyclobutane carboxylic acid, 3-acetylglutaric acid, 3-acetyladipic acid, 3-isopropylglutaric acid, and 3-methyl-1, 2, 3-butanetricarboxylic acid (MBTCA). 4,6,16 Their total concentrations ranged from 11−72 ng m −3 (29 ± 22 ng m −3 ) in winter, which were 2−3 times higher than those (5.1−21 ng m −3 , 9.4 ± 4.7 ng m −3 ) in summer.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

“…The f soc factors for isoprene, α-pinene, β-caryophyllene, and toluene are 0.155 ± 0.039, 0.231 ± 0.111, 0.0230 ± 0.0046, and 0.0079 ± 0.0026, respectively. 16 Such an estimation may suffer from uncertainties under ambient conditions, a point being comprehensively discussed elsewhere. 57−59 Figure 4 shows the temporal contributions of total SOC and their contributions to OC.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

“…Secondary organic carbon (SOC) concentrations derived from these VOCs were roughly estimated using a tracer-based method. 16 Ambient concentrations of biogenic SOA tracers and laboratory-generated mass fractions ( f soc ) of marker compounds derived from given precursors into SOC concentrations were used to estimate the contributions to aerosol OC. The f soc factors for isoprene, α-pinene, β-caryophyllene, and toluene are 0.155 ± 0.039, 0.231 ± 0.111, 0.0230 ± 0.0046, and 0.0079 ± 0.0026, respectively.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

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Molecular markers of biomass burning, fungal spores and biogenic SOA in the Taklimakan desert aerosols

Zhuang

Sun

et al. 2016

Atmospheric Environment

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Biogenic secondary organic aerosols (SOA) are generally considered to be more abundant in summer than in winter. Here, polar organic marker compounds in urban background aerosols from Mumbai were measured using gas chromatography−mass spectrometry. Surprisingly, we found that concentrations of biogenic SOA tracers at Mumbai were several times lower in summer (8−14 June 2006; wet season; n = 14) than in winter (13−18 February 2007; dry season; n = 10). Although samples from less than 10% of the season are extrapolated to the full season, such seasonality may be explained by the predominance of the southwest summer monsoon, which brings clean marine air masses to Mumbai. While heavy rains are an important contributor to aerosol removal during the monsoon season, meteorological data (relative humidity and T) suggest no heavy rains occurred during our sampling period. However, in winter, high levels of SOA and their day/night differences suggest significant contributions of continental aerosols through long-range transport together with local sources. The winter/summer pattern of SOA loadings was further supported by results from chemical transport models (NAQPMS and GEOS-Chem). Furthermore, our study suggests that monoterpene-and sesquiterpene-derived secondary organic carbon (SOC) were more significant than those of isoprene-and toluene-SOC at Mumbai.

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Section: ■ Materials and Methodsmentioning

confidence: 99%

Section: ■ Materials and Methodsmentioning

confidence: 99%

Section: ■ Materials and Methodsmentioning

confidence: 99%

Section: ■ Materials and Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Molecular markers of biomass burning, fungal spores and biogenic SOA in the Taklimakan desert aerosols

Zhuang

Sun

et al. 2016

Atmospheric Environment

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“…This is supported by observations of higher concentrations of IEPOX-derived SOA tracers relative to MAEderived SOA tracers at ground sites in summer. 62,70 However, the strong temperature dependence of the fate of the MPAN reservoir (F MAE formation ) coupled with the known altitudinal dependence of temperature and observations and models showing elevated OH and NO 2 above the boundary layer 71−74 suggests that SOA formation from MAE could be enhanced aloft. Advection of MACR out of the boundary layer and into a cooler temperature regime with available OH and NO 2 would generate MPAN in under conditions that favor MAE formation and SOA from the NO/NO 2 pathway leading to a vertically varying isoprene SOA source.…”

Section: Mpan (mentioning

confidence: 99%

Observational Insights into Aerosol Formation from Isoprene

Worton

Surratt

LaFranchi

et al. 2013

Environ. Sci. Technol.

120

161

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Seasonal cycles of water‐soluble organic nitrogen aerosols in a deciduous broadleaf forest in northern Japan

Miyazaki

Ono

et al. 2014

JGR Atmospheres

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The seasonal variations in aerosol water-soluble organic nitrogen (WSON) concentrations measured in a deciduous forest canopy over an approximately 30 month period were investigated for possible sources in the forest. The WSON concentrations (average 157 ± 127 ng N m À3) and WSON/water-soluble total nitrogen mass fractions (average 20 ± 11%) in the total suspended particulate matter exhibited a clear seasonal cycle with maxima in early summer. The WSON mass was found to reside mostly in the fine-mode size range (D p < 1.9 μm) during the summer months. WSON was positively correlated with oxidation products of α-pinene and isoprene with similar size distributions, suggesting that secondary formation from biogenic hydrocarbon precursors is a plausible source for WSON in summer. In contrast, the majority of WSON in autumn was associated with coarse fraction (D p > 1.9 μm), which was similar to the size distributions of sugar compounds, indicating that the major WSON sources in autumn are associated with primary biological emissions. The vertical differences in WSON concentrations suggest that the water-soluble organic aerosol is enriched with nitrogen below the canopy level relative to the forest floor. The WSON concentration increased with enhanced hydrogen ion concentrations in aerosol in the early summer, indicating that aerosol acidity associated with anthropogenic sources outside the forest likely plays an important role in the formation of WSON in that season. The study suggests that multiple sources of WSON within the forest canopy may dominate over others in specific seasons, providing insights into WSON formation processes in forest environments.

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Estimates of the contributions of biogenic and anthropogenic hydrocarbons to secondary organic aerosol at a southeastern US location

Cited by 475 publications

References 30 publications

Molecular markers of biomass burning, fungal spores and biogenic SOA in the Taklimakan desert aerosols

Molecular markers of biomass burning, fungal spores and biogenic SOA in the Taklimakan desert aerosols

Observational Insights into Aerosol Formation from Isoprene

Seasonal cycles of water‐soluble organic nitrogen aerosols in a deciduous broadleaf forest in northern Japan

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