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Assessment of recent and chalcolithic period environmental pollution using Mytilus galloprovincialis Lamarck, 1819 from Yarimburgaz Cave, the northern Marmara Sea and Bosphorus coasts

Barut I. F., Meriç E., Yokeş M. B.

Oceanologia

2016

No. 58 (2)

135--149

Marine or freshwater mussel species are found in large quantities around populated areas and accumulate metals in aquatic systems. Therefore, these organisms are used to monitor environmental pollution. Mytilus galloprovincialis is a generally accepted bioindicator of metal pollution and is used in this study. The aim of this study is to determine the changes in the environmental conditions since antiquity. M. galloprovincialis shells were used to monitor Chalcolithic pollution levels in Yarimburgaz Cave, one of the oldest settlements in Europe. Recent samples were collected from 12 stations on the coasts of the Northern Marmara Sea and the Bosphorus between May–September 2004. The environmental pollution substantially changed over the last 7500 years. The comparison of the geochemical characteristics of the environmental pollution observed in the Chalcolithic period and today revealed that pollution from both household and industrial chemicals has increased in Istanbul.