Causes of Darkening of the Pamukkale Travertines, Denizli, South-West Turkey

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dc.contributor.authorZedef, Veysel
dc.contributor.authorMatsuda, Yusuke
dc.contributor.authorTanaka, Yuji
dc.contributor.authorHarada, Hisashi
dc.contributor.authorÖncel, Mehmet Salim
dc.contributor.authorDoyen, Adnan
dc.contributor.authorSöğüt, Ali Rıza
dc.contributor.authorŞensöğüt, Cem
dc.date.accessioned2020-03-26T16:45:29Z
dc.date.available2020-03-26T16:45:29Z
dc.date.issued2003
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractSince the beginning of the 1990's, the travertines at Pamukkale, south-west Turkey, have faced a serious environmental pollution problem. The travertines were originally snow-white in colour, but this colour has been turning into pale grey. In addition to other features, the snow-white colour and the huge mass of rocks on the edge of Pamukkale plateau make the travertines unique and attractive to visitors. Living bacteria exist 1-2 mm beneath the surface of the travertines in both terrace and water channel types. The thickness of the bacterial lamina is 1-2 mm in the water channel type, whilst it is approximately 1 cm for other types. Absorbance Spectral (AS) data shows that the living bacteria are cyanobacteria, which are responsible for the green colour in certain areas of the travertines. Our investigations show that the major force responsible for the change of colour in the area is the increasing level of excess organic matter, which also causes a shift in the metal content of the travertines. While the greyish polluted samples have 584 ppm of Total Organic Carbon (TOC), the unpolluted snow-white samples have only 177 ppm of TOC. On the other hand, the Al, Fe and Mn contents of the polluted samples are respectively 144, 62, 6 ppm higher than the unpolluted samples. As the TOC is the main cause of the pollution, decreasing the organic matter in the pools would be the first step to protecting the area. This requires limiting, or even banning, people who enter the pools for swimming. Sources of Al, Fe, Mn and other hazardous metals should be reduced in the region.en_US
dc.identifier.citationZedef, V., Matsuda, Y., Tanaka, Y., Harada, H., Öncel, M. S., Doyen, A., Söğüt, A. R., Şensöğüt, C., (2003). Causes of Darkening of the Pamukkale Travertines, Denizli, South-West Turkey. Fresenius Environmental Bulletin, 12(11), 1373-1378.
dc.identifier.endpage1378en_US
dc.identifier.issn1018-4619en_US
dc.identifier.issue11en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage1373en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12395/18387
dc.identifier.volume12en_US
dc.identifier.wosWOS:000186886900014en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorZedef, Veysel
dc.institutionauthorDoyen, Adnan
dc.institutionauthorSöğüt, Ali Rıza
dc.institutionauthorŞensöğüt, Cem
dc.language.isoenen_US
dc.publisherParlar Scientific Publications (P S P)en_US
dc.relation.ispartofFresenius Environmental Bulletinen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectPollutionen_US
dc.subjectTravertineen_US
dc.subjectPamukkaleen_US
dc.subjectTurkeyen_US
dc.titleCauses of Darkening of the Pamukkale Travertines, Denizli, South-West Turkeyen_US
dc.typeArticleen_US

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