scholarly journals Dynamics of changes in surface water quality indicators of the Western Bug River basin within Ukraine using GIS technologies

2019 ◽  
Vol 42 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Igor Gopchak ◽  
Tetiana Basiuk ◽  
Ihor Bialyk ◽  
Oleg Pinchuk ◽  
Ievgenii Gerasimov
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Environmental Assessment ◽  
Land Surface ◽  
Surface Water Quality ◽  
Ecological Condition ◽  
Toxic Substances ◽  
Ecological Index ◽  
Gis Technologies

Abstract The environmental assessment of the surface water quality of the Western Bug River has been made using the system of classification quality of land surface water of Ukraine in accordance with the approved methodology, which allows comparing water quality of separate areas of water objects of different regions. The calculation of the environmental assessment of water quality has been carried according to three blocks: block of salt composition, block of trophic and saprobic (ecological and sanitary) indicators and block of indicators of content of specific toxic substances. The results are presented in the form of a combined environmental assessment, based on the final conclusions of the three blocks and consists in calculating the integral ecological index. Comprehensive studies of changes in the water quality of the Western Bug River have been conducted within the territory of Ukraine for a long-term period. The water quality of the river on the final values of the integral indicators of the ecological condition corresponded mainly to 4nd category of the 3rd class – the water is “satisfactory” by condition and “little polluted” by degree of purity (except for points of observation that located within the Volyn region, where the water quality corresponded to 3rd category and the 2nd class. It is “good” by condition and “fairly clean” by the degree of purity). Visualization and part of the analysis are performed using GIS technologies in the software of the ArcGIS 10.3.

scholarly journals Role of tributaries in Donbas in ensuring the quality of the Siverskyi Donets river surface water

2019 ◽  
pp. 64-71
Author(s):  
N. S. Loboda ◽  
O. V. Smalii
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Surface Water Quality ◽  
Ecological Condition ◽  
Donets Basin ◽  
Salt Composition ◽  
Ecological Index ◽  
Main River

The relevance of the work consists in the need to study the water quality of the Siverskyi Donets River and its tributaries at the beginning of the 21th century, since the river is a main source of water supply in the eastern part of Ukraine. The catchment area of the Siverskyi Donets River is located in the most industrialized region of Ukraine. It is a transboundary river and its catchment is located in the territory of both Ukraine and Russia. The volume of the river's water use, if compared to its runoff volume, is the largest in Ukraine. The condition of water quality is determined by high water consumption and large amount of polluted water being discharged into it. The largest impact is caused by discharges from the residential and commercial complex (big cities) and the enterprises of coal industry, ferrous metallurgy, chemical and petrochemical industry which are concentrated in the Donets Coal Basin. The purpose of this work is to assess the changes of surface water quality of the Siverskyi Donets Basin and to establish the role of the tributaries affected by considerable anthropogenic pressure in the formation of the ecological state of the main river. The research aims at analyzing the hydrochemical indices of the Siverskyi Donets River and its tributaries: the Udy River (9 km to the south from Kharkiv) located in the forest-steppe zone and affected by the wastewater of Kharkiv megalopolis; the Oskil River (Chervonooskilske Reservoir) located in the karst area, having a significant underground water supply and the runoff of which is regulated by the reservoir; the Luhan, Kryvyi Torets, Kazennyi Torets, Bakhmut rivers that are tributaries originating from the Donetsk Highlands and affected by the wastewater of Donbas industrial and municipal enterprises. The subject of the research is the ecological condition of water resources in the rivers of the Siverskyi Donets Basin estimated using the generalized ecological index. The water quality condition was analyzed based on the hydrochemical observations performed from 1990 to 2015 by Central Geophysical Observatory in Kyiv. The main method of research is the method of ecological assessment of surface water quality of land and estuaries in Ukraine using relevant categories. The assessment of the surface water quality using the generalized ecological index (with application of average indicators) showed that the water quality deteriorates along the main river with its worst condition at Lysychansk section. Analysis of the tributaries indicated the worst ecological condition of the Bakhmut River (Donbas). For most of the considered rivers the 3rd class of quality (“satisfactory”), the 4th category ("satisfactory condition and slightly contaminated”) were established. If we consider the index of ecological condition by maximum indicators, the results are almost the same for all the studied rivers: 5th class, 7th category ("very poor condition and very contaminated”). According to the block of salt composition components, the worst ecological condition is established for sections of the Siverskyi Donets River (city of Lysychansk) and the Bakhmut River. The analysis of the generalized ecological index  dynamics along the length of the main river indicated a general trend (except for the section in Lysychansk) to water quality improvement. This was achieved following the decrease of toxic effects due to reduction of petroleum products and phenol concentrations. No significant changes in the index were detected for the tributaries. Donbas rivers are also characterized by increase of the salt composition components index: their water is classified as "brackish" whereas the water of other tributaries is classified as “fresh water”. The pollution with nitrogen compounds still remains significant and keeps increasing. The heavy metals content decreases very slowly. The inflow of water of the Donbas rivers to the main river causes significant changes of the ecological condition at the Lysychansk section located downstream from the place of their confluence.

scholarly journals Surface water quality of small rivers in the Ukrainian regions of right-bank Polissia

2021 ◽  
Vol 280 ◽  
pp. 10005
Author(s):  
Igor Gopchak ◽  
Tеtiana Basiuk ◽  
Artem Yatsyk ◽  
Oksana Yaromenko
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Surface Waters ◽  
Surface Water Quality ◽  
Ecological Condition ◽  
Small Rivers ◽  
Protection Measures ◽  
Ecological Index ◽  
Satisfactory Condition

The quality of surface waters of small rivers of the Ukrainian regions of right-bank Polissia, belonging to the basin of the river Pripyat, was estimated. The study was conducted via systematic observations based on the ecological classification of surface water quality of land and estuaries of Ukraine, which includes a set of hydrophysical, hydrochemical, hydrobiological and other indicators, which were grouped into three blocks of indicators: salt composition of water; tropho-saprobiological (ecologicalsanitary) block; specific substances of toxic action. The integrated (ecological) index was determined, by which the class and category of surface water quality were established. The results of observations on the quality of surface waters of the rivers of the Ukrainian regions of right-bank Polissia indicate their satisfactory condition. Surface waters, on average, correspond to the II class of water quality, and the worst - to the III class. Water protection measures have been proposed to improve the ecological condition of small river basins in specified region.

scholarly journals ECOLOGICAL ASSESSMENT OF SURFACE WATER QUALITY OF ROSTAVYTSIA RIVER

2020 ◽  
pp. 86-92
Author(s):  
Pavlo Smilii ◽  
Mykhailo Melniychuk
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Quality Indicators ◽  
Environmental Assessment ◽  
Surface Waters ◽  
Ecological Status ◽  
Surface Water Quality ◽  
Ecological Assessment ◽  
Salt Composition

Purpose – perform ecological assessment of the surface waters of the Rostavytsia river within the Zhytomyr region. Method. Environmental assessment of the surface water of the Rostavytsia river was carried out using the system of classification of standards for the assessment of surface water quality of Ukraine. On the basis of common environmental criteria, the methodology makes it possible to compare the quality of water at different sites of water bodies, in water bodies of different regions. The calculation of the ecological assessment of water quality was carried out within three blocks: block of salt composition (І1), block of trophic-saprobiological (ecological-sanitary) indicators (І2) and block of indicators of content of specific substances of toxic action (І3). The results are presented in the form of a combined environmental assessment based on the final conclusions of the three blocks and based on the calculation of the integrated environmental index (IE). Results. Omprehensive studies on changing the water quality of the Rostavytsia river were conducted within the Zhytomyr region during 2016-2017. The water quality of the river according to the final values of the integral indicators of water quality of the three blocks varies within the II and III quality classes. The total environmental indices (IE) for the mean and worst indices are 3,2 and 3,3 respectively. In general, the water quality along the main channel of the Rostavytsia river within the Zhytomyr region corresponds to the second class, 3 categories, 3 subcategories according to the average quality indicators and 3(4) subcategories by worst performance. The total values of the integral surface water quality indicators of the Rostavytsia river indicate their contamination by trophic-saprobiological components. Scientific novelty. For the first time, on the basis of analytical studies and stock materials, an ecological assessment of the surface waters of the Rostavytsia river within the Zhytomyr region was carried out by three blocks of indicators: salt composition, trophic-saprobiological indicators and specific toxic substances. The integral ecological index is determined. The trends of pollutants accumulation in the surface waters of the Rostavytsia river have been established. Practical significance. The conducted researches allowed to analyze and evaluate the ecological status of the surface waters of the Rostavytsia river within the Zhytomyr region, which will allow to establish ecological standards of water quality and on this basis to determine the main directions for improvement of water resources and to substantiate the system of recommendations aimed at improving the ecological status of the studied basin.

scholarly journals ENVIRONMENTAL ASSESSMENT OF THE SURFACE WATER CONDITION OF THE DNIPRO RIVER FROM THE WATER SUPPLY AREAS OF ZAPORIZHZHIA CITY FOR SELECTED INDICATORS OF THE SALT COMPOSITION BLOCK

2021 ◽  
Vol 1 (38) ◽  
pp. 134-141
Author(s):  
О. Троїцька ◽  
K. Belokon ◽  
E Manidina ◽  
V. Ryzkov
Keyword(s):  
Surface Water ◽  
Environmental Assessment ◽  
Land Surface ◽  
Surface Water Quality ◽  
Ecological Condition ◽  
Ion Composition ◽  
Salt Composition ◽  
Current State ◽  
Quality Degradation ◽  
Land Surface Water

Environmental assessment of current state of the Dnieper surface water from Zaporozhye areas water abstractions based on land surface water quality qualification by salt composition is carried out. Quality degradation of the Dnieper surface water by ion composition is discovered with analysis. Ecological condition of the surface water is defines as ”mediocre” and level of contamination is characterized as mildly polluted”.

scholarly journals ENVIRONMENTAL ASSESSMENT OF SURFACE WATER QUALITY ZHYTOMYR POLESIE

2021 ◽  
pp. 41-48
Author(s):  
P. Smilii ◽  
I. Gopchak ◽  
T. Basiuk
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Surface Water Quality ◽  
Ecological Assessment ◽  
Ecological Index ◽  
Ecological Criteria ◽  
Qualitative State ◽  
The Right ◽  
The City

The ecological assessment of the quality of surface water of the Dnipro basin (within Zhytomyr region) is carried out. In general, surface water of rivers of teter, rotten, Guiva, forest stone, Irsha, Human, Arpin, Rostavitsa and Kamyanka were investigated. The study was conducted according to systematic observations based on the ecological classification of the quality of surface water and estuates in Ukraine, which includes a set of hydrophysical, hydrochemical, hydrobiological and other indicators reflecting the peculiarities of components of aqueous ecosystems. On the basis of unified ecological criteria, the technique allows you to compare the water quality in separate areas of water objects, in water objects of different regions. The calculation of the ecological assessment of water quality was carried out within three blocks: a block of saline composition (I1), a block of troph-sanitary (ecological-sanitary) indicators (I2) and a block of indicators of specific substances of toxic action (I3). The results are presented in the form of a combined ecological assessment, based on the final conclusions of three blocks and is to calculate the integral ecological index (IE). The results of observations on the qualitative state of surface water in the Tetereva Basin, the right tributaries of the Dnieper “Good”, “clean” water (II class of quality) here are less than half (47%) of all observation points. Such a quality is the water of the rivers of Irsha, Guiva, rotten, varnia, teter. In 6% of cases, “satisfactory”, “contaminated” water of the quality of the quality (3,7 ≤ IE ≤5,4), namely: r. Teters, within the city of Zhytomyr, 200 m above the fall of the River Forest Kamyanka and River Forest Kamenka, within the city of Zhytomyr, 100 m above the fall in Teter. Waters of all other research points occupy an intermediate position between II and III of quality classes and are evaluated as “good”, “clean” and “satisfactory”, “contaminated”. The water of the pools Irpen and dew, represented by the rivers Irpin, Rostavitsa and Kamenka, are characterized by the second class of quality “good”, “clean”. Executed researches allowed to analyze and evaluate the ecological state of the rivers of the rivers of the Zhytomyr region within the Dnipro River basin, which will establish the environmental standards of water quality and to determine the basic areas for improving the state of water resources and substantiate the system of recommendations aimed at improving the environmental state of the basins under study in the boundary of the area.

scholarly journals ECOLOGICAL ASSESSMENT OF THE SURFACE WATER QUALITY OF THE GUYVA RIVER

2020 ◽  
pp. 52-57
Author(s):  
Pavlo Smilii
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Quality Indicators ◽  
Environmental Assessment ◽  
Surface Waters ◽  
Ecological Status ◽  
Surface Water Quality ◽  
Ecological Assessment ◽  
Salt Composition

Method. Environmental assessment of the surface water of the Guyva River was carried out using the system of classification of standards for the assessment of surface water quality of Ukraine. On the basis of common environmental criteria, the methodology makes it possible to compare the quality of water at different sites of water bodies, in water bodies of different regions. The calculation of the ecological assessment of water quality was carried out within three blocks: block of salt composition (І1), block of trophic-saprobiological (ecological-sanitary) indicators (І2) and block of indicators of content of specific substances of toxic action (І3). The results are presented in the form of a combined environmental assessment based on the final conclusions of the three blocks and based on the calculation of the integrated environmental index (IE). Results. omprehensive studies on changing the water quality of the Guyva River were conducted within the Zhytomyr region during 2016-2017. The water quality of the river according to the final values of the integral indicators of water quality of the three blocks varies within the II and III quality classes. The total environmental indices (IEs) for the mean and worst indices are 2,9 and 3,1 respectively. In general, the water quality along the main channel of the Guyva River within the Zhytomyr region corresponds to the second class, 3 categories, 3(2) subcategories according to the average quality indicators (in the state of "good" with a slope to "very good", in terms of purity bias to "clean") and 3 subcategories by worst performance (good for good, clean enough). The total values of the integral surface water quality indicators of the Guyva River indicate their contamination by trophic-saprobiological components. Scientific novelty. For the first time, on the basis of analytical studies and stock materials, an ecological assessment of the surface waters of the Guyva River within the Zhytomyr region was carried out by three blocks of indicators: salt composition, trophic-saprobiological indicators and specific toxic substances. The integral ecological index is determined. The trends of pollutants accumulation in the surface waters of the River Guyva have been established. Practical significance. The conducted researches allowed to analyze and evaluate the ecological status of the surface waters of the Guyva River within the Zhytomyr region, which will allow to establish ecological standards of water quality and on this basis to determine the main directions for improvement of water resources and to substantiate the system of recommendations aimed at improving the ecological status of the studied basin.

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