Boron isotope composition was used to identify boron sources in groundwater in the eastern part of central Italy, on the west side of the lower alluvial plane of the Pescara river, a few kilometres from the coastline. This area was characterized by two possible boron sources: human activity and a geogenic source. We collected 10 water samples during two sampling surveys, in October 2015 and February 2016. We conducted chemical analyses to determine major ions, boron concentrations and boron isotope values. The results obtained highlight that the groundwater is characterized by high mineralization with electrical conductivity values that reach 8180 µS/cm. Sodium and chloride are the principal ions, reaching values that exceed 3000 mg/L. Boron values exceed the limit provide by Italian legislation for groundwater (1 mg/L) in many samples, reaching the maximum value of 9630 µg/L during February 2016. The isotope values allow the identification of different sources of boron such as landfill leachate, rock leaching and water–rock interaction with terrigenous–evaporitic sequence. This manuscript highlights that isotope analyses are a powerful tool for monitoring and environmental planning.

Boron isotopes in groundwater. Evidence from contamination and interaction with terrigenous–evaporitic sequence, east-central Italy / Nigro, Angela; Sappa, Giuseppe; Barbieri, Maurizio. - In: GEOCHEMISTRY: EXPLORATION, ENVIRONMENT, ANALYSIS. - ISSN 1467-7873. - 18:4(2018), pp. 343-350. [10.1144/geochem2017-065]

Boron isotopes in groundwater. Evidence from contamination and interaction with terrigenous–evaporitic sequence, east-central Italy

Angela Nigro
Membro del Collaboration Group
;
Giuseppe Sappa
Membro del Collaboration Group
;
Maurizio Barbieri
Membro del Collaboration Group
2018

Abstract

Boron isotope composition was used to identify boron sources in groundwater in the eastern part of central Italy, on the west side of the lower alluvial plane of the Pescara river, a few kilometres from the coastline. This area was characterized by two possible boron sources: human activity and a geogenic source. We collected 10 water samples during two sampling surveys, in October 2015 and February 2016. We conducted chemical analyses to determine major ions, boron concentrations and boron isotope values. The results obtained highlight that the groundwater is characterized by high mineralization with electrical conductivity values that reach 8180 µS/cm. Sodium and chloride are the principal ions, reaching values that exceed 3000 mg/L. Boron values exceed the limit provide by Italian legislation for groundwater (1 mg/L) in many samples, reaching the maximum value of 9630 µg/L during February 2016. The isotope values allow the identification of different sources of boron such as landfill leachate, rock leaching and water–rock interaction with terrigenous–evaporitic sequence. This manuscript highlights that isotope analyses are a powerful tool for monitoring and environmental planning.
2018
boron isotope; terrigenous–evaporitic sequence; groundwater; landfill
01 Pubblicazione su rivista::01a Articolo in rivista
Boron isotopes in groundwater. Evidence from contamination and interaction with terrigenous–evaporitic sequence, east-central Italy / Nigro, Angela; Sappa, Giuseppe; Barbieri, Maurizio. - In: GEOCHEMISTRY: EXPLORATION, ENVIRONMENT, ANALYSIS. - ISSN 1467-7873. - 18:4(2018), pp. 343-350. [10.1144/geochem2017-065]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1167949
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