| Article |
|---|
| Article name |
Change of the specific combinatorial index of water pollution of the basin of the river terek |
| Authors |
Gazaev H.M. , Ittiev A.B. , Agоeva E.A. , Kumykov R.M. , |
| Bibliographic description |
|
| Category |
Earth science |
| DOI |
504.064.36:543 |
| DOI |
10.21209/2227-9245-2018-24-7-18-32 |
| Article type |
scientific |
| Annotation |
With the help of the specific combinatorial index of water pollution (SCIWP), an assessment of the purity degree for individual water bodies in the basin of the river Terek: from the mountain, foothill to the flat area was made. The research was conducted in 2015–2016 on the following water bodies: the rivers Chegem, Baksan, Malka, Terek.
As the main factual material, the observation data for the studied rivers were used, presented in a form of reports from the FGU “Kabbalkvodresursy” and the water resources department “West Caspian Basin Water Authority for the KBR”.
It is revealed that the values of the SCIWP are characterized by a spatio-temporal change, i. e., an increase from highland to flat areas. An increased value of the index for 2016 studies was noted. It is established that the reason for the deterioration in the quality of water bodies of the basin of the river Terek is an impact of both natural and anthropogenic factors. It is determined that the increase in the SCIWP values correlates with the increase in wastewater volumes and water content on the rivers.
It is noted that the microelement composition of the high-mountainous catchments of the Caucasus is characterized by an elevated content of many heavy metals, the reason of which is the spread of ore-bearing rocks in their basins. The above exceedences of PDK.h. for heavy metals (aluminum, iron, common manganese, copper, molybdenum) are associated with natural geochemical background. At the same time, the cause of heavy metals appearance in the investigated waters is an anthropogenic factor. Also, the factor leading to deterioration in the quality of water bodies in the basin of the river Terek is sewage of various origin, as well as the impact of the fuel and energy complex of the Republic of North Ossetia-Alania, which enriches the waters with phenol and petroleum products. In conclusion, the main and priority actions, aimed at protecting the water resources of the basin of the river Terek and improvement of their qualitative condition are listed.
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| Key words |
Terek; water quality; specific combinatorial index of water pollution; natural and anthropogenic pollution; water bodies; correlation; heavy metals; wastewater; protection of water resources; observation
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| Article information |
Gazaev Kh.-M., Ittiev A., Agоeva E., Kumykov R. Change of the specific combinatorial index of water pollution of the basin of the river Terek // Transbaikal State University Journal, 2018, vol. 24, no. 7. pp. |
| References |
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