5. Assessment of geochemical background and groundwater age

Groundwater is a complex, three-dimensional body of water in which recharge phenomena, flow conditions and interactions with the solid environment (rocks, soils) can be highly localized. This means that, within a given groundwater body, the chemical, radiochemical and biochemical characteristics of the water vary both spatially (horizontally and vertically) and temporally. In comparison with natural conditions, these characteristics can be modified by anthropogenic pressures. Thus, the water quality of a given body of water cannot be represented by a single set of analytical values, and the degree of human influence cannot be established by simple comparison with a reference list ...

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Assessment of geochemical background and groundwater age

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Environmental objectives

Bibliography

(1) - GIBERT (J.) - In : Groundwater Ecology – A tool for management of water resources, GRIEBLER (C.), DANIELOPOL (D.L.), GIBERT (J.), NACHTNEBEL (H.P.), NOTENBOOM (J.) éditeurs, Commission Européenne, EUR 19887, rue de la Loi 200, B-1049 Bruxelles, 413 p. (2001).
(2) - DUMAS...

Websites

http://ec.europa.eu/environment/water/water-framework

Standards and norms

Portant sur les dispositions générales pour la compétence des laboratoires d'essais et d'étalonnage - EN ISO/IEC-17025 -

Regulations

Directive 2000/60/EC establishing a framework for Community action in the field of water policy, OJ of the European Communities, L 327 of 22.12.2000, p. 1.

Directive 2006/118/EC on the protection of groundwater against pollution and deterioration, JO des Communautés Européennes, L 372 du 12.12.2006, p. 19