Combining natural background levels (NBLs) assessment with indicator kriging analysis to improve groundwater quality data interpretation and management
| Autor: | Luís Ribeiro, M. Teresa Condesso de Melo, Daniela Ducci, Elisabetta Preziosi, Daniele Parrone, Mariangela Sellerino |
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| Přispěvatelé: | Ducci, Daniela, Condesso de Melo, M. T., Preziosi, E., Sellerino, Mariangela, Parrone, D., Ribeiro, L. |
| Rok vydání: | 2016 |
| Předmět: |
Natural background level Groundwater contamination Indicator kriging Probability maps
Environmental Engineering Natural background level Iron 0208 environmental biotechnology 02 engineering and technology 010501 environmental sciences Groundwater contamination 01 natural sciences Natural (archaeology) Arsenic Kriging Water Quality Environmental Chemistry Waste Management and Disposal Groundwater 0105 earth and related environmental sciences Hydrology Manganese Spatial Analysis Hydrogeology Portugal Probability maps Data interpretation Indicator kriging Pollution 020801 environmental engineering Background level Italy Environmental science Water quality Groundwater quality Water resource management Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Science of the total environment 569 (2016): 569–584. doi:10.1016/j.scitotenv.2016.06.184 info:cnr-pdr/source/autori:Ducci, Daniela; Condesso de Melo, M. Teresa; Preziosi, Elisabetta; Sellerino, Mariangela; Parrone, Daniele; Ribeiro, Luis/titolo:Combining natural background levels (NBLs) assessment with indicator kriging analysis to improve groundwater quality data interpretation and management/doi:10.1016%2Fj.scitotenv.2016.06.184/rivista:Science of the total environment/anno:2016/pagina_da:569/pagina_a:584/intervallo_pagine:569–584/volume:569 |
| ISSN: | 1879-1026 |
| Popis: | The natural background level (NBL) concept is revisited and combined with indicator kriging method to analyze the spatial distribution of groundwater quality within a groundwater body (GWB). The aim is to provide a methodology to easily identify areas with the same probability of exceeding a given threshold (which may be a groundwater quality criteria, standards, or recommended limits for selected properties and constituents). Three case studies with different hydrogeological settings and located in two countries (Portugal and Italy) are used to derive NBL using the preselection method and validate the proposed methodology illustrating its main advantages over conventional statistical water quality analysis. Indicator kriging analysis was used to create probability maps of the three potential groundwater contaminants. The results clearly indicate the areas within a groundwater body that are potentially contaminated because the concentrations exceed the drinking water standards or even the local NBL, and cannot be justified by geogenic origin. The combined methodology developed facilitates the management of groundwater quality because it allows for the spatial interpretation of NBL values. (C) 2016 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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