scholarly journals Qualitative assessment of the level of natural content of heavy metal compounds natural content level in the basins of the Malka, Urukh, Cherek, and Chegem rivers

2021 ◽  
Author(s):  
Keyword(s):  
Heavy Metal ◽  
Water Body ◽  
Natural Waters ◽  
Statistical Processing ◽  
Water Bodies ◽  
Qualitative Assessment ◽  
Protection Measures ◽  
Metal Compounds

To date, considerable experience has been accumulated in assessing and standardizing the quality of natural waters, however, the role of regional factors in practical standardization in most cases is ignored. Due to the lack of recommendations for establishing permissible loads on a water body, taking into account its natural characteristics, the effectiveness of water protection measures is reduced. Determination of the concentrations of pollutants using maximum permissible concentrations without taking into account the hydrological and hydro/chemical characteristics of water bodies does not ensure the environmental safety of the water body. The regulation of the water quality of water bodies must necessarily reflect the regional features of the formation of the chemical composition of natural water in a particular territory, since the soil and geochemical features of the catchment area of the basin reflect natural background concentrations. Methods. The article proposes a new approach to assessing the qualitative determination of priority pollutants taking into account the regional background. For a qualitative assessment of the level of natural content of dissolved forms of heavy metal compounds, statistical processing was carried out for the main phases of the water regime. The significance of the difference between the sample of summer samples of river water for pollutants from the corresponding sample of winter samples and rainwater samples was determined using the Wilcoxon-Mann-Whitney nonparametric statistical test. Results. The proposed approach for statistical processing of long-term data enables to make qualitative assessment of the natural level of the content of heavy metal compounds on the surface and in the strata of soils that compose the basins of the Malka, Urukh, Cherek, Chegem rivers. The results obtained can be used to improve the methodological and practical issues of regionally oriented standardization.

On methodological approaches to the improvement of surface water bodies and target indicators of the natural waters’ quality

2021 ◽  
Vol 27 (1) ◽  
pp. 6-14
Author(s):  
V. Zaslonovsky ◽  
◽  
N. Sharapov ◽  
M. Bosov ◽  
◽  
...  
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Natural Water ◽  
Aquatic Ecosystems ◽  
Natural Waters ◽  
Water Bodies ◽  
Surface Water Bodies ◽  
Methodological Approaches ◽  
Natural Water Bodies

The paper is devoted to the development of proposals concerning the improvement of surface water bodies and the appointment of target indicators of the natural waters’ quality. The paper considers a variety of problems of preserving, restoring and improving the quality of natural surface waters: from regional features of the formation of natural water composition, to differences in the requirements for the quality of water consumed. The object of the study is the qualitative indicators of the waters of natural water bodies, and the subject of the study is the methodological approaches to the normalization of these indicators. The purpose of the work is to identify the main shortcomings in the domestic system of rationing the quality of natural waters, and to form appropriate proposals. For this purpose, the following tasks were set and solved: to review the methodological approaches to assessing and rationing the quality of natural waters used in some foreign countries and in the Russian Federation, to identify the main causes and shortcomings; to make proposals for improving the current system of water quality rationing. The result of this work is the conclusions about the lack of impact of the strategy operating in Russia in the development of schemes of complex use and protection of water objects, standards of permissible impact on water bodies, the appointment of permissible discharge limits in terms of maintaining and improving the water quality of natural water bodies. The reasons that led to this are indicated. The necessity of taking into account, in addition to the physical and chemical composition, also hydrobiological parameters is shown. It is concluded that instead of fisheries management standards, environmental standards should serve as the basis for target indicators of water quality of natural water bodies, which determine the well-being of humans and the stable functioning of aquatic ecosystems, taking into account regional factors. Proposals were made to adjust the methodological approaches to the implementation of this strategy. According to the authors, these proposals will speed up the solution of the main objectives of the strategy – the ecological improvement of water bodies, the preservation of unique aquatic ecosystems and the environmentally safe development of territories that previously experienced relatively small anthropogenic impacts (Eastern Siberia and the Far East)

scholarly journals Experience in Pilotless Aircrafts’ Application for Assessment of the Surface Water Bodies’ Bank State

2018 ◽  
Author(s):  
Keyword(s):  
Surface Water ◽  
Reference Points ◽  
Water Bodies ◽  
Protection Measures ◽  
Field Investigations ◽  
Application Analysis ◽  
Bank Protection ◽  
Surface Water Bodies ◽  
Aircraft Application

Experience of the pilotless aircrafts application for decision of tasks connected with surface water bodies’ bank stripe condition and dynamics assessment has been discussed. In order to increase substantially the survey and subsequent estimations accurancy the use of reference points (markers) has been proposed, with determining of the plane and altitude coordinates with professional two-frequency GPS-GLONASS recievers in accordance with the standing regulating documants. This approach will enable to improve drastically quality of the obtained assessments and efficiency of the pilotless aircraft application. Analysis of the slope reforming intensity has been carried out at the range of the Kosva River right bank in the vicinity of the villige of Peremskoye on the basis of the 2017 field investigations outcomes. Such estimations are necessary for effective forecasting of bank changes dynamics, as well as for designing of any bank protection measures.

Determination of Relation between the Quaternary Sediments and Land Use Dissemination on the Basis of Šventoji River Basin

2017 ◽  
Author(s):  
Andrius Litvinaitis ◽  
Lina Bagdžiūnaitė-Litvinaitienė ◽  
Laurynas Šaučiūnas
Keyword(s):  
Land Use ◽  
River Basin ◽  
Water Bodies ◽  
Quaternary Sediments ◽  
Corine Land Cover ◽  
Quality Of Water ◽  
Management Plans ◽  
Subsurface Runoff

On preparing of the first management plans of River Basin Districts have been found that diffuse agricultural pol-lution is one of the most important causing factor and the most significant impact on the quality of water bodies. Diffuse agricultural pollution can be from 45% to 80% of nitrate nitrogen pollution load of water bodies. Pollution is transported by water surface and subsurface runoff through sediments from agricultural territories. This article aims at evaluating of relation between the Quaternary sediments and Land use dissemination. The lithological factor (sandy, loamy, argillaceous) of the basin was calculated based on Quaternary map of Lithuania M 1:200000 and Lithuanian river map M 1:50000. The land-use factor of the basin was calculated based on Corine Land cover M 1:100000 using ArcGis software. In order to carry out more thorough analysis of the determination of relation between the Quaternary sediments and Land use dissemination in given territories, sections of 0–50 m, 50–200 m, 200–500 m, 500–800 m, 800–1000 m and >1000 m were established, calculating the distance in meters from the riverbank.

scholarly journals Standards Role in Support of State Regulation of Water/economic Activities

2015 ◽  
pp. 7
Author(s):  
Keyword(s):  
Water Quality ◽  
Water Body ◽  
Negative Impact ◽  
Environmental Safety ◽  
State Regulation ◽  
Water Bodies ◽  
Economic Activities ◽  
Best Available Techniques ◽  
Detection And Identification

Upgrading of the national standardization system creates favorable conditions for support and normal promotion of integrated environmental standards as a toolbox for control of the process of minimization of adverse impacts with their concurrent accounting and possible redistribution among the environment elements, i.e. air, water bodies, and soils. In the Russian practice of environmental protection there is no any objective toolbox for comprehensive assessment of the current activities’ negative impact. In outlook adoption of the negative impact minimization mechanism is most probable through the many-year benchmarking with European expertise based on the revealing of cause-eff ect relations in terms of «relative improvement of technique against the attained quality of environment (objectives)». Water bodies are subjected both to direct and indirect negative impact. There is no one method for assessment of water bodies’ environmental safety as a basis for adoption of adequate solutions in water sector. The developed standards on the basis of water/economic activities without considerable emissions to air and to soils propose a toolbox to secure uniform quantitative assessment both the techniques negative impact through assessment of their waste water quality and assessment of water quality of the receiving water body. The developed toolbox provides detection of the «negative impact – water body water quality» causeeffect relations. Integrated criteria proposed in the standards provide ranking and classifying of negative impact objects, detection and identification of the national water/economic best available techniques, implementation of the combined approach in the process of adoption of integrated environmental permissions.

scholarly journals Resource-Efficient Methods to Facilitate the Preservation of a Reservoir's Self-Cleaning Potential

2022 ◽  
Author(s):  
Vitaliy V. Chelnokov ◽  
Aleksey V. Matasov ◽  
Elena Zabolotnaya ◽  
Anna S. Makarova ◽  
Andrey N. Glushko
Keyword(s):  
Water Quality ◽  
Water Body ◽  
Water Bodies ◽  
Environmental Condition ◽  
Environmental Preservation ◽  
Quality Of Water ◽  
Self Cleaning

The aim of this research was to develop environmental methods for the restoration and rehabilitation of Moscow’s water bodies. A number of methods are recommended. These can help to improve the environmental condition and water quality of water bodiesin Moscow. Keywords: ehabilitation of water body, engineering biology, environmental preservation

scholarly journals Small Water Body Detection and Water Quality Variations with Changing Human Activity Intensity in Wuhan

2022 ◽  
Vol 14 (1) ◽  
pp. 200
Author(s):  
Lingjun Wang ◽  
Wanjuan Bie ◽  
Haocheng Li ◽  
Tanghong Liao ◽  
Xingxing Ding ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Water Quality ◽  
Water Body ◽  
Human Activities ◽  
Water Bodies ◽  
Small Water ◽  
Small Water Body ◽  
Water Indices ◽  
Small Water Bodies

Small water bodies ranging in size from 1 to 50,000 m2, are numerous, widely distributed, and have various functions in water storage, agriculture, and fisheries. Small water bodies used for agriculture and fisheries are economically significant in China, hence it is important to properly identify and analyze them. In remote sensing technology, water body identification based on band analysis, image classification, and water indices are often designed for large, homogenous water bodies. Traditional water indices are often less accurate for small water bodies, which often contain submerged or floating plants or easily confused with hill shade. Water quality inversion commonly depends on establishing the relationship between the concentration of water constituents and the observed spectral reflectance. However, individual variation in water quality in small water bodies is enormous and often far beyond the range of existing water quality inversion models. In this study, we propose a method for small water body identification and water quality estimation and test its applicability in Wuhan. The kappa coefficient of small water body identification is over 0.95, and the coefficient of determination of the water quality inversion model is over 0.9. Our results show that the method proposed in this study can be employed to accurately monitor the dynamics of small water bodies. Due to the outbreak of the COVID-19 pandemic, the intensity of human activities decreased. As a response, significant changes in the water quality of small water bodies were observed. The results also suggest that the water quality of small water bodies under different production modes (intensive/casual) respond differently in spatial and temporal dimensions to the decrease in human activities. These results illustrate that effective remote sensing monitoring of small water bodies can provide valuable information on water quality.

scholarly journals Bees: bioindicators of the environment

2020 ◽  
Author(s):  
Iryna Kovalchuk
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Raw Materials ◽  
Literature Information ◽  
Heavy Metals Accumulation ◽  
Systems Research ◽  
Metals Accumulation ◽  
Methodological Approaches

It is well-known that melliferous bees are the most sensitive indicators of ecologic conditions of natural environment. Researches in recent years show that bees and bee products can accumulate selectively some heavy metals, radioactive substances, pesticides and other polluters. Scales of heavy metals accumulation on the territory of Ukraine, as toxins of technologic origin unfortunately increase. Environmental pollution by heavy metals leads to their accumulation in plant and animal raw materials and production, consequently their quality decreases. It was proved that apiary accommodation in heavy metal polluted territories leads to their accumulation in pollen, honey bee-comb and wax. But the questions concerning study of peculiarities of sources, ways of pollution and heavy metals content in bee products are not enough lightened, and that was the purpose of our work. Generalized we present in literature information and results of our researches about the use of bees and bee products in quality of bioindicator contamination of environment by heavy metals. Dependence of content of heavy metals is set in the organism of bees in relation intensity of greening to contamination of environment. It is marked on the necessity of lead through of systems research in relation to determination of content of heavy metals in fabrics of bees and bee products with the purpose of search of new methodological approaches for authentication these toxicant of objective environment of contamination and him apimonitoring. Methodological elements of the researches of regularities of heavy metals and lipids content in the tissues of different anatomic sections of the organism and bee products were elaborated.

scholarly journals Assessing the impact of land use and land cover dynamics on water quality of Dal Lake, NW Himalaya, India

2020 ◽  
Vol 10 (10) ◽  
Author(s):  
Ishtiyaq Ahmad Rather ◽  
Abdul Qayoom Dar
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Land Cover ◽  
Water Body ◽  
Anthropogenic Activities ◽  
Well Being ◽  
Water Bodies ◽  
Conservation Strategy ◽  
Dal Lake

Abstract A dynamic process like land use, if anthropogenically unsustainable, adversely affects the well-being of the land system. Worldwide, water bodies are facing imminent threat due to unsustainable anthropogenic activities. Water quality and ecology are the two characteristics of water bodies, if not preserved, shall have a direct consequence on the well-being of the human systems. Hence it is essential to understand the causes and consequences of the deteriorating water body systems. The condition is particularly grim in Himalayan water body ecosystems, where unplanned and unchecked urbanization has threatened their very existence. In the present study, the dynamics of land use/land cover (LULC) and its impact on the water quality of Dal Lake in Kashmir Himalaya, India has been assessed. We carried out a detailed study wherein changing LULC is analyzed against the deteriorating trophic status of the Dal Lake using time-series of satellite imagery of the lake’s catchment and its water quality data. Results indicated that the water quality of Dal Lake has remarkably deteriorated due to increased nutrient and sediment loads from the catchment, attributed to significant anthropogenic activities in the catchment. Due to unprecedented LULC changes in the catchment, the forest class shows a significantly negative change since the last four decades (1980–2018), corroborating with the ongoing deterioration of physicochemical characteristics of the lake. The analysis shows an increase in all the agents of eutrophication, such as NO3–N, TP, and COD, from 1990 to 2018. The decrease in forest, agriculture, and floating gardens was observed to show a significant negative correlation with the increase in the decadal average values of the COD, NO3–N, and TP for the same corresponding period. Similarly, a positive correlation was found between the increase in built-up, aquatic vegetation, bare surfaces, and these water quality parameters, establishing a strong relationship between the deteriorating condition of the lake and changing LULC. Our findings indicate that changing LULC of the lake’s catchment is one of the critical factors that has significantly contributed toward the deteriorating ecology and water quality of the Dal Lake. This study shall contribute toward the development of the robust conservation strategy in order to save this urban lake from its untimely death.

Epidemiological assessment of surface water bodies with the consideration of their contamination by vibrio cholerae O1 and O139 as a constituent part in determining the epidemic potential of an administrative territory

2017 ◽  
pp. 44-49 ◽  
Author(s):  
E.A. Moskvitina ◽  
E.G. Tyuleneva ◽  
A.V. Samorodova ◽  
V.D. Kruglikov ◽  
S.V. Titova
Keyword(s):  
Surface Water ◽  
Vibrio Cholerae ◽  
Infectious Agent ◽  
Water Bodies ◽  
Route Of Transmission ◽  
Household Water ◽  
Vibrio Cholerae O1 ◽  
Surface Water Bodies

In this paper the degree of potential epidemic hazard (DPEH) is defined of surface water bodies utilized as the sources of centralized household water supply and for recreational purposes, with the consideration of their contamination by Vibrio cholerae O1 and O139 and the quality of wastewater discharged into surface water bodies, in 67 subjects of the Russian Federation. High and increased DPEH of surface water bodies in case of their contamination by V. cholerae O1 ctxA+ tcpA+, V. cholerae ctxA- tcpA+ and V. cholerae O1 and O139 ctxA- tcpA- implies the presence of both real and potential epidemiological risks of realisation of the water route of transmission of the infectious agent. DPEH of water bodies together with other data will be used for determination of the epidemic potential of an administrative territory.

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

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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