Assessment of chloride natural background levels by applying statistical approaches. Analyses of European coastal aquifers in different environments
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Título
Assessment of chloride natural background levels by applying statistical approaches. Analyses of European coastal aquifers in different environmentsAutoría
Fecha de publicación
2022Editor
ElsevierCita bibliográfica
PULIDO-VELAZQUEZ, D., et al. Assessment of chloride natural background levels by applying statistical approaches. Analyses of European coastal aquifers in different environments. Marine Pollution Bulletin, 2022, vol. 174, p. 113303.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.sciencedirect.com/science/article/pii/S0025326X21013370Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Estimated natural background levels (NBLs) are needed to assess groundwater chemical status according to the
EU Groundwater Directive. They are commonly derived for different substances by applying statistical ... [+]
Estimated natural background levels (NBLs) are needed to assess groundwater chemical status according to the
EU Groundwater Directive. They are commonly derived for different substances by applying statistical methodologies. Due to the complexity of the sea water intrusion process, some of those methods do not always provide
appropriate assessment of chloride NBLs. This paper analyzes the applicability of different NBL estimation
methods in five EU coastal aquifers with significant differences in available datasets and hydrogeological settings. A sensitivity analysis of results to different constraints was performed to remove samples with anthropogenic impacts. A novel statistical approach combining different methods to identify the range of chloride NBLs
is proposed. In all pilots the estimated NBLs were below 85 mg/L and fitted well with previous studies and expert
judgment, except Campina del Faro aquifer (the maximum being 167.5 mg/L). Although this approach is more
time consuming, it provides a more robust solution. [-]
Publicado en
Marine Pollution Bulletin Volume 174, January 2022, 113303.Entidad financiadora
Unión Europea | Ministerio de Ciencia, Innovación y Universidades | Innovation Fund Denmark | University of Latvia
Código del proyecto o subvención
GeoE.171.008-TACTIC | GeoE.171.008-HOVER | SIGLO-AN (RTI2018-101397 -B-I00) | 8055-00073B | Nr.AAP2016/B041
Derechos de acceso
0025-326X/© 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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