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Author (up) Döll, P.; Krol, M.; Fuhr, D.; Gaiser, T.; Herfort, J.; Höynck, S.; Jaeger, A.; Külls, C.; Mendiondo, E.M.; Printz, A.; others
Title Integrated scenarios of regional development in Ceará and Piauí Type Book Chapter
Year 2003 Publication Global Change and Regional Impacts Abbreviated Journal
Volume Issue Pages 19-41
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Publisher Springer, Berlin, Heidelberg Place of Publication Editor
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Notes Approved no
Call Number THL @ christoph.kuells @ Doll2003integrated Serial 39
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Author (up) Edmunds, W.M.; Shand, P.; Hart, P.; Ward, R.S.
Title The natural (baseline) quality of groundwater: a UK pilot study Type Journal Article
Year 2003 Publication Science of The Total Environment Abbreviated Journal
Volume 310 Issue 1 Pages 25-35
Keywords Baseline quality, Groundwater, Hydrogeochemistry, Monitoring, Water Policy
Abstract Knowledge of the natural baseline quality of groundwaters is an essential prerequisite for understanding pollution and for imposing regulatory limits. The natural baseline of groundwaters may show a range of concentrations depending on aquifer mineralogy, facies changes, flow paths and residence time. The geochemical controls on natural concentrations are discussed and an approach to defining baseline concentrations using geochemical and statistical tools is proposed. The approach is illustrated using a flowline from the Chalk aquifer in Berkshire, UK where aerobic and anaerobic sections of the aquifer are separately considered. The baseline concentrations for some elements are close to atmospheric values whereas others evolve through time-dependent water–rock interaction. Certain solutes (K, NH4+), often considered contaminants, reach naturally high concentrations due to geochemical controls; transition metal concentrations are generally low, although their concentrations may be modified by redox controls. It is recommended that the baseline approach be incorporated into future management strategies, notably monitoring.
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ISSN 0048-9697 ISBN Medium
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Notes Approved no
Call Number THL @ christoph.kuells @ edmunds_natural_2003 Serial 166
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Author (up) Voerkelius, S.; Külls, C.; Santiago, M.M.F.; Frischkorn, H.; dos Santos Semrau, L.A.; Heinrichs, G.; Gil, M.M.L.
Title Investigations on water management and water quality in Picos/PI and Tauá/CE Type Book Chapter
Year 2003 Publication Global change and regional impacts Abbreviated Journal
Volume Issue Pages 173-184
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Publisher Springer, Berlin, Heidelberg Place of Publication Editor
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Notes Approved no
Call Number THL @ christoph.kuells @ Voerkelius2003investigations Serial 40
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