Assessment of metal concentrations and physicochemical parameters in the waters of Lake Tecer

Aim of the study: The objectives of this study are to observe the monthly and annual changes in water samples using physical-chemical methods in order to determine the water quality properties, to reveal pollution problems, to determine the suitability of water quality for aquatic life and to classify the quality of water in accordance with the Surface Water Quality Management Regulation's Inland Surface Water Classes criteria. Area of the study: Lake Tecer is located in the southeastern area of Sivas city and at the end of Brook Tecer, a branch of the Kizilirmak. The lake has a mean depth of 2.4 m and is fed by surface waters and snowmelt. Material and methods: The study period was from March 2011 to February 2012. Samples analysed for several chemical and physical parameters representing water quality were collected monthly over a period of 12 months. Main results: It was observed that the condition of the lake in terms of water quality is good. According to the Classification of the Intra-Continental Water Resources in the WPCR, the lake shows Class I, II and III water quality characteristics. Research highlights: In order to protect the water quality of this water source, to reduce further pollution and to sustain the natural ecological balance consisting of natural fish stocks and other aquatic animals, this lake should be monitored continuously.