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Determination of background levels on water quality of groundwater bodies: a methodological proposal applied to a Mediterranean River basin (Guadalhorce River, Málaga, southern Spain).
J Environ Manage. 2013 Mar 15; 117:121-30.JE

Abstract

Determine background levels are a key element in the further characterisation of groundwater bodies, according to Water Framework Directive 2000/60/EC and, more specifically, Groundwater Directive 2006/118/EC. In many cases, these levels present very high values for some parameters and types of groundwater, which is significant for their correct estimation as a prior step to establishing thresholds, assessing the status of water bodies and subsequently identifying contaminant patterns. The Guadalhorce River basin presents widely varying hydrogeological and hydrochemical conditions. Therefore, its background levels are the result of the many factors represented in the natural chemical composition of water bodies in this basin. The question of determining background levels under objective criteria is generally addressed as a statistical problem, arising from the many aspects involved in its calculation. In the present study, we outline the advantages of applying two statistical techniques applied specifically for this purpose: (1) the iterative 2σ technique and (2) the distribution function, and examine whether the conclusions reached by these techniques are similar or whether they differ considerably. In addition, we identify the specific characteristics of each approach and the circumstances under which they should be used.

Authors+Show Affiliations

Grupo de Hidrogeología, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain. b.urresti@uma.esNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23353884

Citation

Urresti-Estala, Begoña, et al. "Determination of Background Levels On Water Quality of Groundwater Bodies: a Methodological Proposal Applied to a Mediterranean River Basin (Guadalhorce River, Málaga, Southern Spain)." Journal of Environmental Management, vol. 117, 2013, pp. 121-30.
Urresti-Estala B, Carrasco-Cantos F, Vadillo-Pérez I, et al. Determination of background levels on water quality of groundwater bodies: a methodological proposal applied to a Mediterranean River basin (Guadalhorce River, Málaga, southern Spain). J Environ Manage. 2013;117:121-30.
Urresti-Estala, B., Carrasco-Cantos, F., Vadillo-Pérez, I., & Jiménez-Gavilán, P. (2013). Determination of background levels on water quality of groundwater bodies: a methodological proposal applied to a Mediterranean River basin (Guadalhorce River, Málaga, southern Spain). Journal of Environmental Management, 117, 121-30. https://doi.org/10.1016/j.jenvman.2012.11.042
Urresti-Estala B, et al. Determination of Background Levels On Water Quality of Groundwater Bodies: a Methodological Proposal Applied to a Mediterranean River Basin (Guadalhorce River, Málaga, Southern Spain). J Environ Manage. 2013 Mar 15;117:121-30. PubMed PMID: 23353884.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Determination of background levels on water quality of groundwater bodies: a methodological proposal applied to a Mediterranean River basin (Guadalhorce River, Málaga, southern Spain). AU - Urresti-Estala,Begoña, AU - Carrasco-Cantos,Francisco, AU - Vadillo-Pérez,Iñaki, AU - Jiménez-Gavilán,Pablo, Y1 - 2013/01/28/ PY - 2012/07/04/received PY - 2012/11/20/revised PY - 2012/11/24/accepted PY - 2013/1/29/entrez PY - 2013/1/29/pubmed PY - 2013/8/16/medline SP - 121 EP - 30 JF - Journal of environmental management JO - J Environ Manage VL - 117 N2 - Determine background levels are a key element in the further characterisation of groundwater bodies, according to Water Framework Directive 2000/60/EC and, more specifically, Groundwater Directive 2006/118/EC. In many cases, these levels present very high values for some parameters and types of groundwater, which is significant for their correct estimation as a prior step to establishing thresholds, assessing the status of water bodies and subsequently identifying contaminant patterns. The Guadalhorce River basin presents widely varying hydrogeological and hydrochemical conditions. Therefore, its background levels are the result of the many factors represented in the natural chemical composition of water bodies in this basin. The question of determining background levels under objective criteria is generally addressed as a statistical problem, arising from the many aspects involved in its calculation. In the present study, we outline the advantages of applying two statistical techniques applied specifically for this purpose: (1) the iterative 2σ technique and (2) the distribution function, and examine whether the conclusions reached by these techniques are similar or whether they differ considerably. In addition, we identify the specific characteristics of each approach and the circumstances under which they should be used. SN - 1095-8630 UR - https://www.unboundmedicine.com/medline/citation/23353884/Determination_of_background_levels_on_water_quality_of_groundwater_bodies:_a_methodological_proposal_applied_to_a_Mediterranean_River_basin__Guadalhorce_River_Málaga_southern_Spain__ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0301-4797(12)00630-5 DB - PRIME DP - Unbound Medicine ER -