The role of bromide and iodide ions in the salinization mapping of the aquifer of Glafkos River basin (northwest Achaia, Greece)

dc.contributor.author	Mandilaras, D	en
dc.contributor.author	Lambrakis, N	en
dc.contributor.author	Stamatis, G	en
dc.date.accessioned	2014-06-06T06:48:46Z
dc.date.available	2014-06-06T06:48:46Z
dc.date.issued	2008	en
dc.identifier.issn	08856087	en
dc.identifier.uri	http://dx.doi.org/10.1002/hyp.6627	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/4263
dc.subject	Bromide	en
dc.subject	Groundwater quality remediation	en
dc.subject	Iodide	en
dc.subject	Seawater intrusion	en
dc.subject.other	Dilution	en
dc.subject.other	Discharge (fluid mechanics)	en
dc.subject.other	Groundwater	en
dc.subject.other	Ion exchange	en
dc.subject.other	Remediation	en
dc.subject.other	Groundwater quality remediation	en
dc.subject.other	Hydrogeochemical processes	en
dc.subject.other	Salinization mapping	en
dc.subject.other	Salt water intrusion	en
dc.subject.other	Dilution	en
dc.subject.other	Discharge (fluid mechanics)	en
dc.subject.other	Groundwater	en
dc.subject.other	Ion exchange	en
dc.subject.other	Remediation	en
dc.subject.other	Salt water intrusion	en
dc.subject.other	aquifer	en
dc.subject.other	bromide	en
dc.subject.other	hydrogeochemistry	en
dc.subject.other	iodide	en
dc.subject.other	ion	en
dc.subject.other	isotopic ratio	en
dc.subject.other	mapping	en
dc.subject.other	remediation	en
dc.subject.other	salinization	en
dc.subject.other	seawater	en
dc.subject.other	spatial distribution	en
dc.subject.other	water chemistry	en
dc.subject.other	water quality	en
dc.subject.other	Achaea	en
dc.subject.other	Eurasia	en
dc.subject.other	Europe	en
dc.subject.other	Glafkos Basin	en
dc.subject.other	Greece	en
dc.subject.other	Patras	en
dc.subject.other	Southern Europe	en
dc.subject.other	Western Greece	en
dc.title	The role of bromide and iodide ions in the salinization mapping of the aquifer of Glafkos River basin (northwest Achaia, Greece)	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/hyp.6627	en
heal.publicationDate	2008	en
heal.abstract	Seawater intrusion causes many problems for groundwater quality, whereas natural remediation is time consuming. However, in cases where groundwater replenishment is feasible, groundwater quality remediation is possible and rapid. The alluvial aquifer in the lowland of the Glafkos River basin, which extends south of Patras city, was for over 30 years the major water source supplying the broader area. Groundwater quality has been degraded due to seawater intrusion, caused by overpumping and generally by inappropriate groundwater management. During the last decade, groundwater quality has been remedied due to diminished groundwater abstractions. The remediation rate was further higher because of rapid discharge of the brackish groundwater, through wells with freely flowing water in the coastal area, where, however, groundwater quality remains low. This paper deals with the hydrogeochemical processes that take place in the area. It is ascertained that ion exchange and mineral dilution processes are dominant. The ion relations between chloride, bromide and iodide, as well as the distribution maps of their concentrations, were used to determine the spatial distribution of the seawater intrusion front. In the lower part of the area in a distance from 1000 and 1500 m from the coast, the rBr-/rCl- ratio showed low values (<2-5 × 10-3) similar to those of seawater. The rI-/rCl- ratio also presented low values (<7 × 10-5), with the lowest one (2·7 × 10-5) detected along the coastline. In the upper part of the area, a gradual change of those ratios was observed upstream, until they receive values similar to those of the surface waters of Glafkos River. Copyright © 2007 John Wiley & Sons, Ltd.	en
heal.journalName	Hydrological Processes	en
dc.identifier.issue	5	en
dc.identifier.volume	22	en
dc.identifier.doi	10.1002/hyp.6627	en
dc.identifier.spage	611	en
dc.identifier.epage	622	en