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Author: Ivanutin N. M. Podovalova S. V.

ENVIRONMENTAL MONITORING OF SURFACE WATER USING ADVANCED METHODS

Topics: 05.23.04 Water supply, sewarage, constructive systems of water resources conservation (archive until 2018)

Abstract:

The main goal of the research was to study the ecological state of the river Bodrak (main tributary of the Alma River) using several methods. For this purpose, the sections along the length of the river subjected to an anthropogenic load of different intensities were chosen. The studies were carried out with a standard method of analyzing the chemical composition of the river waters, and also by a biotesting method which consisted in germinating the seeds of testing cultures in selected water samples and comparing the length of the formed root system with the control one on the distilled water. Seeds of cress (Lepidium sativum) Ducan (dicoty-ledon plant) and spring soft wheat (Triticum vulgare) (monocotyledonous plants) were used as test cultures. The excess of sulfate content which reached 2.3 MPC (maximum permissible concentration) was recorded in the lower reaches of the river. At the same time the increase in the content of this component is noted after passing through Skalistoe village, where the in-sufficiently purified effluents from the treatment facilities are discharged into the river. In the upper reaches of the river Bodrak (control section no. 1), there was an anomalous lead content exceeding the standard by 12 times. However, at the mouth of the river (control section no. 6), the content of this element decreased to acceptable standards. Also in the upper reaches of the river cadmium concentrations of 0.4 MPC were found. Zinc in the selected samples was not detected. The phytotoxicity of the tested waters was manifested in stimulating the devel-opment of the root system of testing plants (wheat), which developed with growth accelera-tion in contact with the investigated waters. The testing cultures responded equally to the in-vestigated water which indicates their high sensitivity expressed in response test reactions to the presence of pollutants (such as sulfates, magnesium, calcium, lead) in water and stiffness (these values exceeded the MPC). A sharp jump in the form of water toxicity increase also oc-curred after the watercourse passing through Skalistoe village.
Key words: river Bodrak, river Alma, Republic of Crimea, biotesting, ecological state, monitoring, testing culture, toxicity.
DOI: 10.31774/2222-1816-2018-4-232-249

For citas:
N. M. Ivanyutin, S. V. Podovalova. ENVIRONMENTAL MONITORING OF SURFACE WATER USING ADVANCED METHODS. Scientific Journal of Russian Scientific Research Institute of Land Improvement Problems. 2018. No 4. P. 232-249
DOI:https://doi.org/10.31774/2222-1816-2018-4-232-249

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