Intercomparison of elemental concentrations in total and size-fractionated aerosol samples collected during the mace head experiment, April 1991

Francois, Filip; Maenhaut, Willy; Colin, Jean-Louis; Losno, R.; Schulz, Mıchael; Stahlschmidt, T.; Spokes, L.; Jickells, Timothy D.

doi:10.1016/1352-2310(94)00310-h

Cited by 17 publications

(2 citation statements)

References 32 publications

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“…Relative to a reference quiet air conditions (2 m s −1 ), we observed variations of the collected particle numbers from 0.8 to 1.3 for particles smaller than 5 μ m in diameter and from 0.8 to 1.1 for the largest channel (>5 μ m). On the field, our low volume aerosol collection system has also been reported to give results comparable to other filtration samplers in a similar environment to our study (François et al , 1995): the maximal discrepancy between high and low volume systems is a factor 2 for Al and a factor 3 for sea salts. It is suggested that coarse particles could be responsible for this discrepancy and especially for sea‐salt component.…”

Section: Scavenging Ratios and Vertical Dust Distributionsupporting

confidence: 84%

Direct measurements of atmospheric iron, cobalt, and aluminum‐derived dust deposition at Kerguelen Islands

Heimburger

Losno

Triquet

et al. 2012

Global Biogeochemical Cycles

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[1] Atmospheric deposition is one of the major sources of nutrients bringing trace metals to remote marine biota. In this study, total atmospheric deposition and crustal aerosol concentrations were monitored at Kerguelen Islands (49 18′S; 70 07′E) in the Southern Ocean during a short campaign in early 2005 and then continuously for about 2 years (2009)(2010). Results show very low levels of atmospheric dust and trace metals concentrations but higher deposition fluxes than expected. The averaged total dust deposition flux as derived from Al deposition measurements is 659 mg m À2 d À1 . Simultaneously measured Fe and Co deposition fluxes are respectively 29 mg m À2 d À1 (520 nmol m À2 d À1 ) and 0.014 mg m À2 d À1 (0.24 nmol m À2 d À1 ), giving typically crustal elemental ratios to Al of 0.54 and 2.6 10 À4 . Measured dust deposition is in relatively good agreement with those simulated by current atmospheric models, but suggest that previous indirect calculations from field experiments are too low by a factor of 20. Observations and model results show that dust is transported above the marine atmospheric boundary layer to Kerguelen Islands, and thus that surface concentrations are not representative of the total dust column. Indeed, using surface concentrations leads to very large computed wet scavenging ratios, and to the conclusion that it is not appropriate to derive deposition fluxes from surface concentrations at remote ocean sites.

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Section: Scavenging Ratios and Vertical Dust Distributionsupporting

confidence: 84%

Direct measurements of atmospheric iron, cobalt, and aluminum‐derived dust deposition at Kerguelen Islands

Heimburger

Losno

Triquet

et al. 2012

Global Biogeochemical Cycles

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“…In order to characterize the influence and dispersion of the atmospheric emissions, a great number of studies have been performed in different regions of the world (Chester et al 1981;Artaxo and Orsini 1987;Artaxo et al 1988;Artaxo et al 1990;Schulz et al 1992;Losno et al 1993;Parungo et al 1990;Lim et al 1994;Artaxo et al 1998;François et al 1995;Colin et al 1997;Chester et al 2000;Desboeufs et al 2001;Spokes et al 2001;Drab et al 2002;Desboeufs et al 2003;Gonçalves et al 2003;Leblond et al 2003;Desboeufs et al 2005;Sofikitis et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Atmospheric Total Suspended Particulate Trace Element Identification by XRF at Ilha Grande, State of Rio De Janeiro, Brazil

Nascimento

Losno

Colin

et al. 2010

Water Air Soil Pollut

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Phosphorus, manganese, sulfur (S), lead, and strontium of atmospheric total suspended particulate matter, sampled during the rainy season and the dry season 2002 at the Ilha Grande Island (Rio de Janeiro State, Brazil) have been analyzed by XRF techniques.The results showed total mean concentrations of 27± 16 ng P m -3 , 11±7 ng Mn m -3 , 159±126 ng S m -3 , 4.3±2.6 ng Pb m -3 , and 208±148 ng Sr m -3 . Generally, there is no clear influence of the two different climatic periods on the concentrations of most analyzed trace elements, with exception of sulfur the mean concentration of which, during the dry season, is about 60% higher than during the rainy season. This is probably due to biomass burning, a common practice in the Brazilian Southeast and Amazon region and/or to the presence of marine aerosols. The linear correlation coefficients strongly suggest the same source for P, Pb, and Mn. Some Pb, Mn, and P concentrations are in the range of typical values of urban areas. Potential sources of such elements are the urban and industrial emissions from the States of Rio de Janeiro and/or São Paulo.

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Transformation of Polluted Air Masses when Transported over Sea with respect to Deposition Processes

Schulz

Stahlschmidt

Rebers

et al. 2000

Exchange and Transport of Air Pollutants Over Complex Terrain and the Sea

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Intercomparison of elemental concentrations in total and size-fractionated aerosol samples collected during the mace head experiment, April 1991

Cited by 17 publications

References 32 publications

Direct measurements of atmospheric iron, cobalt, and aluminum‐derived dust deposition at Kerguelen Islands

Direct measurements of atmospheric iron, cobalt, and aluminum‐derived dust deposition at Kerguelen Islands

Atmospheric Total Suspended Particulate Trace Element Identification by XRF at Ilha Grande, State of Rio De Janeiro, Brazil

Transformation of Polluted Air Masses when Transported over Sea with respect to Deposition Processes

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