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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universitat de Barcelona
2004
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| Online Access: | https://www.redalyc.org/articulo.oa?id=50520209 |
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Table of Contents:
- Natural groundwater quality and health S. Jordana E. Batista Ciencias de la Tierra Health Toxic elements Essential elements Groundwater quality Natural composition Natural groundwater composition and quality is of concern because it is used worldwide as a freshwater supply.Discarding artificial pollution, epidemiological studies have shown that many communities suffer importantdiseases linked to the groundwater ingested since several tens of years ago. As the available resources of freshwaterdecrease due to pollution and overexploitation, and the need of water increases, more efforts have to bedevoted to guarantee water quality. Of course preventing pollution is the main task but studying and controllingthe natural groundwater quality is also very important, mainly in developing countries. To study the relationshipbetween natural groundwater composition and health implies working in many scientific disciplines such ashydrology, geology, geochemistry and toxicology. During its cycle, water acquires its natural compositiondepending on the hydrogeological scenario, which, in turn, depends on the climate, topography and rock properties(hydraulic properties, chemical composition). Nearly all natural waters contain traces of most chemicalelements but often at extremely low concentrations. Major species invariably make up over 99% of the solutecontent. Major compounds as well as trace elements can be essential, toxic, potentially toxic and potentiallybeneficial. Special attention has to be paid to chemical elements present in many natural waters whose insufficientor excess intake produces critical illness and whose intake is mainly through the ingestion of water. A firstapproach to groundwater quality can be made using element concentrations in water but many efforts have to bedevoted to perform epidemiological and risk assessment studies based on intake doses of chemical species. 2004 artículo científico 1695-6133 https://www.redalyc.org/articulo.oa?id=50520209 en http://www.redalyc.org/revista.oa?id=505 Geologica Acta: an international earth science journal application/pdf Universitat de Barcelona Geologica Acta: an international earth science journal (España) Num.2 Vol.2