title: Investigation of heavy metal pollutants at various depths in the Gulf of Izmit.
abstract: In this study, we report results concerning the accumulation of heavy metals in seawater from Izmit Bay. The bay was divided into the three parts: the eastern, the central and the western basins. The goal of this study was to determine levels of heavy metals at various depths in the bay between April 2008 and May 2010. Liquid-liquid extractions were performed on seawater samples. An atomic absorption spectrophotometer was used to measure levels of six metals: lead, cadmium, chromium, iron, manganese and zinc. We applied our results to evaluate the status of pollution in the Gulf of Izmit. Significant seasonal differences in metal concentrations and higher concentrations of many metals in water near the shore are evidence for uncontrolled release of pollutants in the water.
authors.affiliation: Department of Biology, Kocaeli University, 41380 Kocaeli, Turkey.
authors.forename: Halim Aytekin
authors.initials: HA
authors.lastname: Ergül
authors.forename: Tolga
authors.initials: T
authors.lastname: Varol
authors.forename: Ümit
authors.initials: Ü
authors.lastname: Ay
mesh_terms: D004784:Environmental Monitoring; D059625:Liquid-Liquid Extraction; D019216:Metals, Heavy / Q000032:analysis*; D012623:Seawater / Q000737:chemistry*; D014421:Turkey; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical
keywords: Atomic absorption spectrophotometer; Deep seawater; Gulf of Izmit; Heavy metal