Chemical and ecological quality of water and bottom sediments in small rivers of Belgorod oblast

Complex chemical-analytical and microbiological studies of the state of water, soil grounds and bottom sediment of the industrial zone of city of Khabarovsk were carried out. It was found that petroleum prodacts are the main environmental pollutant of the study area. The impact of runoff from the industrial zone on the quality of water and bottom sediments of the Amur river is manifested in an increase in their content and number of indicator groups of bacteria in the zone of impact of the small river Kurcha-Murcha draining the territory of the industrial zone. The oil content in the Kurcha-Murcha river at the exit from conduit is 20 MPC. The degree of soil contamination varies from “increased-background” to “strong”. The amount of oil products in the bottom sediments of the Kurcha-Murcha and the Amur river (below the mouth of the Kurcha-Murcha river) is defined as "dangerous" and "strong", respectively.

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CHEMICAL AND ECOLOGICAL QUALITY OF WATER AND BOTTOMSET BEDS OF THE VALUY RIVER IN THE BELGOROD REGION

Успехи современного естествознания (Advances in Current Natural Sciences) ◽

10.17513/use.37551 ◽

2020 ◽

pp. 145-150

Author(s):

T.V. Oliva ◽

L.A. Manokhina ◽

E.Yu. Kolesnichenko ◽

A.E. Solovieva ◽

N.V. Andreeva

Keyword(s):

Ecological Quality ◽

Quality Of Water

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ASSESSMENT OF WATER BODIES QUALITY OF THE VOLGA-AKHTUBA FLOODPLAIN FROM ECOLOGICAL VIEWPOINT

Ecology and water management ◽

10.31774/2658-7890-2021-3-3-18-33 ◽

2021 ◽

Author(s):

S. Ya. Semenenko ◽

◽

N. V. Morozova ◽

S. S. Marchenko ◽

N. A. Kolobanova ◽

...

Keyword(s):

Water Quality ◽

Bottom Sediments ◽

Natural Waters ◽

Oxygen Demand ◽

Petroleum Products ◽

Point Of View ◽

Water Bodies ◽

Quality Of Water ◽

Negative Impacts

Purpose: to assess the quality of water in water bodies of the Volga-Akhtuba floodplain from an ecological viewpoint, taking into account the modern regulatory framework in the field of environmental protection. Materials and Methods. To assess the quality of natural waters from an ecological viewpoint, a complex indicator calculated by basic analyte markers that characterize typical negative impacts was used. The following hydrochemical indicators were taken as analyte markers: pH, mineralization (dry residue), suspended solids of natural origin, total iron, total manganese, ammonium (N), nitrites (N), nitrates (N), phosphates (PO4), chemical oxygen demand (COD). Results. The ecological state of water bodies was determined by hydro-chemical indicators of surface waters and bottom sediments using the example of such representative objects as water bodies on the territory of the Volga-Akhtuba floodplain: lakes Peschanoe, Varyuzhka, Zhestkovo, erik Chayka, lakes Beshenoe, Chubatoe, Yamy, erik Shumrovatyy, lake Shirokogorloe. In accordance with the provisions of GOST R 58556-2019 “Assessment of water quality in water bodies from an ecological point of view”, the quality of water from an ecological viewpoint, the degree of quality disturbance and changes in the state of aquatic ecosystems under anthropogenic load have been determined. Conclusions. Petroleum products have been recorded in the water bodies of the Volga-Akhtuba floodplain (lake Varyuzhka, erik Shumrovatyy). The analysis of hydrochemical indicators of water quality and bottom sediments shows that currently the overall level of pollution of the considered water bodies does not reach critical levels of permissible values.

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Methodology for assessment of technogenic contamination in water bodies at urban areas

E3S Web of Conferences ◽

10.1051/e3sconf/201913501057 ◽

2019 ◽

Vol 135 ◽

pp. 01057

Author(s):

Valentina Kurochkina

Keyword(s):

Bottom Sediments ◽

Water Body ◽

Urban Areas ◽

Water Bodies ◽

Quality Of Water ◽

Technogenic Contamination ◽

Main Indicator ◽

Water Ecosystems ◽

Relationship Of

The paper considers the problem of the influence of man-made load on the quality of water and bottom sediments of water bodies. The relationship of the state of the water body, the quality of the water in it and the level of contamination of bottom sediments is established. It has been shown that the rates and volumes of formation of bottom sediments and the level of contamination of their layers are different throughout the existence of a water body, which allows the use of bottom sediments as the main indicator of the ecological state of a water body, reflecting the level of anthropogenic impact on water ecosystems over time.

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ASSESSMENT OF WATER QUALITY IN SMALL RIVERS OF KHABAROVSK DURING THE WINTER LOW-WATER PERIOD OF 2020–2021

Regional Problems ◽

10.31433/2618-9593-2021-24-2-3-43-46 ◽

2021 ◽

Vol 24 (2-3) ◽

pp. 43-46

Author(s):

I.S. Sinkova

Keyword(s):

Water Quality ◽

Chemical Composition ◽

Small Rivers ◽

Quality Of Water

The quality of water in small rivers of Khabarovsk during the winter low-water years 2020–2021 has been assessed. It shows a wide variation in pollutants concentrations due to a different chemical composition of feeding waters.

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The influence of the bottom sediments on water quality of small rivers

Ekologiya i stroitelstvo ◽

10.35688/2413-8452-2019-01-003 ◽

2019 ◽

Vol 01 (01) ◽

pp. 19-24

Author(s):

Iskandarova Shakhnoza Tulkunovna ◽

Usmanov Islam Abbasovich ◽

KHasanova Mamura Ikramovna

Keyword(s):

Water Quality ◽

Bottom Sediments ◽

Small Rivers ◽

Surface Layers ◽

Secondary Sources ◽

Sources Of Pollution ◽

State Of Water ◽

Deep Layers ◽

Metallurgical Combine

The research is devoted to the study of the effect of bottom sediments on the water quality of the Akhangaran river. It has been established that below the wastewater discharge of the Almalyk Mining and Metallurgical Combine, bottom sediments are formed in the coastal areas of the Akhangaran River, in which significant concentrations of mineral and organic substances accumulated. The toxic metals, the concentrations of which exceed the normative levels, especially in the summer season were found in the water. A strong correlation (r > 0.5) has been established between the content of elements in bottom sediments and their concentration in the water of the Akhangaran river. The obtained data shows that bottom sediments are secondary sources of pollution of small rivers. Thus, the monitoring the water quality of small rivers in areas where non-ferrous metallurgy enterprises are located should be carried out taking into account the adverse effects of bottom sediments on the state of water bodies. The content of elements in bottom sediments varies widely on average from 0.01 (surface layers) to 32.1 mg/g (deep layers). It is characteristic that iron and copper in the bottom sediments are present in higher concentrations compared to other elements.

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