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Boron Dissolved and Particulate Atmospheric Inputs to a Forest Ecosystem (Northeastern France).
Roux, Philippe; Turpault, Marie-Pierre; Kirchen, Gil; Redon, Paul-Olivier; Lemarchand, Damien.
Afiliação
  • Roux P; BEF-INRA, Centre de Nancy, 54280 Champenoux, France.
  • Turpault MP; LHyGeS/CNRS, Université de Strasbourg , Strasbourg, France.
  • Kirchen G; BEF-INRA, Centre de Nancy, 54280 Champenoux, France.
  • Redon PO; BEF-INRA, Centre de Nancy, 54280 Champenoux, France.
  • Lemarchand D; Andra- Centre de Meuse Haute Marne 55290 Bure, France.
Environ Sci Technol ; 51(24): 14038-14046, 2017 Dec 19.
Article em En | MEDLINE | ID: mdl-29149554
ABSTRACT
Boron concentrations and isotopic compositions of atmospheric dust and dissolved depositions were monitored over a two-year period (2012-2013) in the forest ecosystem of Montiers (Northeastern France). This time series allows the determination of the boron atmospheric inputs to this forest ecosystem and contributes to refine our understanding of the sources and processes that control the boron atmospheric cycle. Mean annual dust and dissolved boron atmospheric depositions are comparable in size (13 g·ha-1·yr-1 and 16 g·ha-1·yr-1, respectively), which however show significant intra- and interannual variations. Boron isotopes in dust differ from dissolved inputs, with an annual mean value of +1 ‰ and +18 ‰ for, respectively. The notable high boron contents (190-390 µg·g-1) of the dust samples are interpreted as resulting from localized spreading of boron-rich fertilizers, thus indicating a significant local impact of regional agricultural activities. Boron isotopes in dissolved depositions show a clear seasonal trend. The absence of correlation with marine cyclic solutes contradicts a control of atmospheric boron by dissolution of seasalts. Instead, the boron data from this study are consistent with a Rayleigh-like evolution of the atmospheric gaseous boron reservoir with possible but limited anthropogenic and/or biogenic contributions.
Assuntos

Texto completo: 1 Coleções: 01-internacional Contexto em Saúde: 2_ODS3 Base de dados: MEDLINE Assunto principal: Boro / Florestas / Monitoramento Ambiental País/Região como assunto: Europa Idioma: En Revista: Environ Sci Technol Ano de publicação: 2017 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Contexto em Saúde: 2_ODS3 Base de dados: MEDLINE Assunto principal: Boro / Florestas / Monitoramento Ambiental País/Região como assunto: Europa Idioma: En Revista: Environ Sci Technol Ano de publicação: 2017 Tipo de documento: Article