Heavy metals in fresh snow collected at different altitudes in the Chamonix and Maurienne valleys, French Alps: initial results

Veysseyre, Audrey; Moutard, Kerno; Ferrari, Christophe; Velde, Katja Van de; Barbante, Carlo; Cozzi, Giulio; Capodaglio, Gabriele; Boutron, Claude F.

doi:10.1016/s1352-2310(00)00125-4

Cited by 89 publications

(63 citation statements)

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“…EFc is defined as the concentration ratio of a given element to that of a conservative one (in this work we use Ti) which derives mainly from rock and soil dust, normalized to the same concentration ratio in the upper continental crust (Wedepohl, 1995). For instance, the EFc for Pb is:…”

Section: Trace Elements Concentrations and Fluxesmentioning

confidence: 99%

“…Schwikowski et al (2004) analyzed the same samples for Pb concentration and isotopes. Surprisingly, little attention has been paid to the investigation of trace metals in fresh snow and seasonal snow-pack from high altitude European Alpine areas and only few reliable data concerning winter snow have been published (Gabrielli et al, 2008;Veysseyre et al, 2001). Moreover no similar studies have ever been conducted on high-altitude glaciers in the Eastern Alps.…”

Section: Introductionmentioning

confidence: 99%

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Impact of Po Valley emissions on the highest glacier of the Eastern European Alps

et al. 2011

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Abstract. In June 2009, we conducted the first extensive glaciological survey of Alto dell'Ortles, the uppermost glacier of Mt. Ortles (3905 m a.s.l.), the highest summit of the Eastern European Alps. This section of the Alps is located in a rain shadow and is characterized by the lowest precipitation rate in the entire Alpine arc. Mt. Ortles offers a unique opportunity to test deposition mechanisms of chemical species that until now were studied only in the climatically-different western sector. We analyzed snow samples collected on Alto dell'Ortles from a 4.5 m snow-pit at 3830 m a.s.l., and we determined a large suite of trace elements and ionic compounds that comprise the atmospheric deposition over the past two years.Trace element concentrations measured in snow samples are extremely low with mean concentrations at pg g −1 levels. Only Al and Fe present median values of 1.8 and 3.3 ng g −1 , with maximum concentrations of 21 and 25 ng g −1 . The median crustal enrichment factor (EFc) values for Be, Rb, Sr, Ba, U, Li, Al, Ca, Cr, Mn, Fe, Co, Ga and V are lower than 10 suggesting that these elements originated mainly from soil and mineral aerosol. EFc higher than 100 are reported for Zn (118), Ag (135), Bi (185), Sb (401) and Cd (514), demonstrating the predominance of non-crustal depositions and suggesting an anthropogenic origin.Correspondence to: J. Gabrieli (gabrieli@unive.it) Our data show that the physical stratigraphy and the chemical signals of several species were well preserved in the uppermost snow of the Alto dell'Ortles glacier. A clear seasonality emerges from the data as the summer snow is more affected by anthropogenic and marine contributions while the winter aerosol flux is dominated by crustal sources. For trace elements, the largest mean EFc seasonal variations are displayed by V (with a factor

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Section: Trace Elements Concentrations and Fluxesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of Po Valley emissions on the highest glacier of the Eastern European Alps

et al. 2011

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“…2.44 ¡ 0.55 (3) 2.44 ¡ 0.58 (5) Hg (2,2) 0.169 ¡ 0.007 (2) 0.164 ¡ 0.020 (2) Al (3,6) 3692 ¡ 347 (3) 2481 ¡ 514 (6) Ca (3,4) 683 ¡ 198 (3) 763 ¡ 172 (4) Mg (2,5) 582 ¡ 168 (2) 737 ¡ 95 (5) Na (3,3) 817 ¡ 307 (3) 229 ¡ 78 (3) P (2,5) 265 ¡ 8 (2) 281 ¡ 7 (5) Ti (3,3) 357 ¡ 18 (3) 110 ¡ 11(3) a x and y indicate the number of laboratories that submitted results for total and acid-extractable elemental concentrations, respectively. b Under total and acid-extractable concentration, the number in brackets indicates the number of accepted laboratory results used in the certification exercise for each element.…”

Section: Applicability and Availabilityunclassified

Development of an ombrotrophic peat bog (low ash) reference material for the determination of elemental concentrations

et al. 2004

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Given the increasing interest in using peat bogs as archives of atmospheric metal deposition, the lack of validated sample preparation methods and suitable certified reference materials has hindered not only the quality assurance of the generated analytical data but also the interpretation and comparison of peat core metal profiles from different laboratories in the international community. Reference materials play an important role in the evaluation of the accuracy of analytical results and are essential parts of good laboratory practice. An ombrotrophic peat bog reference material has been developed by 14 laboratories from nine countries in an inter-laboratory comparison between February and October 2002. The material has been characterised for both acid-extractable and total concentrations of a range of elements, including Al,

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“…Il apparaît clairement que les neiges des fonds de vallées sont beaucoup plus contaminées par les métaux lourds que les altitudes élevées, et ceci s'exprime par une tendance décrois-sante des concentrations en métaux lourds au fur et à mesure q ue l'on s'é lève en a ltit ude [8]. Ce phénomène est sans aucun doute lié aux sources anthropiques présentes dans les vallées (industries, autoroutes, combustion de cha rbon , bois ...) ai nsi qu'aux phénomènes d'inversion de tempé rature .…”

Section: Corse (Piri O)unclassified

Flux de dépôt de métaux lourds sur le manteau neigeux alpin français au cours des hivers 1997-1998 et 1998-1999 Méthodologie et résultats préliminaires

Veysseyre¹,

Ferrari²,

Elichegaray³

et al. 2000

Pollution Atmosphérique

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Heavy metals in fresh snow collected at different altitudes in the Chamonix and Maurienne valleys, French Alps: initial results

Cited by 89 publications

References 50 publications

Impact of Po Valley emissions on the highest glacier of the Eastern European Alps

Impact of Po Valley emissions on the highest glacier of the Eastern European Alps

Development of an ombrotrophic peat bog (low ash) reference material for the determination of elemental concentrations

Flux de dépôt de métaux lourds sur le manteau neigeux alpin français au cours des hivers 1997-1998 et 1998-1999 Méthodologie et résultats préliminaires

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