The Study (on Contaminant Effects) of Some Metals in Aras Water Junction Dam in South Caucasia in Terms of Ecogeography

In this study, the factors which bring about getting dirty the dam of Aras Water Junction have been researched. The most emphasized factor is regarded as the heavy metals . The countries which cause environmental tension in Aras Water Junction dam are Armenia, Iran, Nakhchivan Autonomous Republic and Turkey. Armenia draws attraction as a main country causing environmental tension with the waste of heavy metals. This river basin includes 97 % the soils of Armenia. All of the wastes of industry, agriculture and food supplies as well as solid and other wastes in the immediate area (especially, in the fields of Armenia, and Iran, Nakhchivan) are firstly involved in the branches of the river, later they are involved in Aras Water Junction dam. Heavy metals have an important place among these wastes. In the study, the analysis of water samples from 21 different points in Aras Water Junction dam is examined. To these examinations, the most concentration of metals is revealed as iron at the 10th and 11th point, chrome at the 11th and 18th points, aluminum at the 11th and 18th points, copper at the 15th and 18th points. In general, this shows that mostly, the intensity of heavy metals are at the 11th and 18th control test points. In other words this density is at the center divisions of dam’s delta and twilight area. In the research, the metals in water dam are discussed from two aspects. The first one is the necessity for life and the second one is the harms of the metals as a toxic material. The study shows that mercury, lead, cadmium and aluminum which are the metals contaminating the water surroundings are too dangerous for health and this group elements cause the poisoning of living organisms (human, plant, animal etc.) and even their extinction. The analysis of Aras Water Junction Dam from this aspect reveals the importance of the study.