Distribution of Ephemeroptera larvae in water bodies of the Republic of Komi

2000 ◽  
Vol 36 (3) ◽  
pp. 12
Author(s):  
V. M. Sadyrin
Keyword(s):  
Water Bodies ◽  
The Republic

Ecological and hygienic assessment pollution of surface and groundwater in Transural Region Republic of Bashkortostan

2017 ◽  
pp. 14-17
Author(s):  
Z.B. Baktybaeva ◽  
R.A. Suleymanov ◽  
T.K. Valeev ◽  
N.R. Rakhmatullin
Keyword(s):  
Surface Water ◽  
Calcium Nitrate ◽  
Water Bodies ◽  
Drinking Water Contamination ◽  
Mining Areas ◽  
Relative Contribution ◽  
Quality Of Water ◽  
Republic Of Bashkortostan ◽  
The Republic ◽  
Surface And Groundwater

Carried out ecological and hygienic assessment of pollution of surface and groundwater of mining areas in the Republic of Bashkortostan. Revealed exceeding standards for fishery water bodies and drinking and cultural and community water use, which indicates the potential danger of surface water for the health of the region's population. The greatest relative contribution to the overall pollution of surface water bodies are making manganese (33,0–66,6 %), iron (9,1–15,6 %), calcium (6,5–11,7 %), lead (5,8– 7,2 %). The quality of water used for drinking purposes from decentralized water sources (boreholes, wells, springs), do not always correspond to the hygienic and sanitary-epidemiological requirements. In this case, the highest priority performance of drinking water contamination are increased stiffness, high content of iron, calcium, nitrate, presence cadmium, and hexavalent chromium.

scholarly journals Water Bodies Restoration: Examples of the Western Caucasus Basin District Small Rivers

2010 ◽  
Author(s):  
Keyword(s):  
Water Bodies ◽  
Monitoring Data ◽  
Small Rivers ◽  
Western Caucasus ◽  
Protective Measures ◽  
The Western Caucasus ◽  
The Republic

The paper has been prepared on the basis of the review of water bodies management and restoration methods used in Western Caucasus Basin District. According to the monitoring data, status of many water bodies is unsatisfactory due to their pollution and clogging. Clearing of small rivers in terms of silting and overgrowing in combination with other water/protective measures is the main kind of restoration activities. Restoration works at the Nazranka River in the Republic of Ingushetia and the Elistinka River in the Republic of Kalmikia are given as the relevant examples.

Environmental and Epidemiological Aspects of V. cholerae O1 Contamination of Water Bodies in the Republic of Kalmykia

2021 ◽  
pp. 79-86
Author(s):  
EA Moskvitina ◽  
EG Yanovich ◽  
ML Kurilenko ◽  
VD Kruglikov ◽  
AK Noskov
Keyword(s):  
Water Quality ◽  
Quality Indicators ◽  
Russian Federation ◽  
Water Bodies ◽  
Pcr Analysis ◽  
Wastewater Discharge ◽  
The Russian Federation ◽  
The Republic ◽  
The City ◽  
Chemical Water

Background: Within the framework of cholera surveillance in the Russian Federation, annual isolation of nontoxigenic V. cholerae O1 strains from water bodies is registered in the Republic of Kalmykia. This fact is the rationale for the present study and analysis of data on contamination of water bodies with V. cholerae O1 with account for some environmental and quality indicators of water bodies used for recreational purposes. Objective: To study contamination of water bodies with V. cholerae O1 as a component of cholera control surveillance in the Republic of Kalmykia. Materials and methods: We used notifications issued by Offices of the Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing (Rospotrebnadzor) in the constituent entities of the Russian Federation, passports for V. cholerae O1 strains, and information from “Cholera vibrios. Russia” database for 1991–2019. Results: In the 1970s, 1980s and 1990s, several outbreaks, sporadic and single imported cases of cholera were registered in the republic. The total of 446 strains of V. cholerae O1 El Tor were isolated during the analyzed period. The PCR analysis identified them as V. cholerae O1 ctxA–tcpA– and V. cholerae O1 ctxA– tcpA+. We observed an increasing trend in the number of isolated strains with the approximation coefficient of 0.374 against its general decrease in the country in 1991–2019. Strains were isolated annually, mainly from the Elista River, Zayachy Pond and other water bodies with poor microbiological and chemical water quality parameters. V. cholerae O1 ctxA– tcpA+ were isolated mainly at the wastewater discharge sites, which indicated their imported origin, along with V. cholerae O1 ctxA– tcpA– with InDel and PCR genotypes not previously found in this region. We consider the contamination of water bodies with V. cholerae O1 ctxA– tcpA– and V. cholerae O1 ctxA– tcpA+ as prerequisites for possible deterioration of the local epidemiological situation due to cholera importation from endemic areas. Conclusion: When analyzing the pollution of water bodies in the Republic of Kalmykia with V. cholerae O1, we established a long-term annual isolation of cholera vibrios from some water bodies in the city of Elista, including Elistinka river, Zayachy and Kolonsky ponds, notorious for poor microbiological and chemical water quality indicators. The contamination was mainly attributed to domestic wastewater discharge and poorly treated effluents of sewage treatment plants into the Elistinka river within the city boundaries, as well as watercourses from hollows. This proves the imported origin of the bacterium confirmed by isolation of V. cholerae O1 ctxA– tcpA– with InDel- and PCR-genotypes not previously found in this region.

scholarly journals ECONOMIC USE OF WATER OBJECTS IN THE TERRITORY OF THE PAVLODAR REGION OF THE REPUBLIC OF KAZAKHSTAN

2020 ◽  
Author(s):  
Yu.G. Tulendinova ◽  
◽  
L.V. Shvetsova ◽  
Keyword(s):  
Water Bodies ◽  
Urban Districts ◽  
The Republic ◽  
Economic Use

This article systematizes data on water bodies of the Pavlodar region of the Republic of Kazakhstan and the geography of their location. The features of the economic use of water bodies in ten districts and two urban districts of the study area are revealed.

scholarly journals Geospatial model for establishing constructed wetlands for municipal waste water treatment: Case study in South Bačka District, Serbia

2021 ◽  
Vol 24 (1) ◽  
pp. 71-76
Author(s):  
Jasna Grabić ◽  
Sanja Antić ◽  
Pavel Benka ◽  
Boško Blagojević
Keyword(s):  
Waste Water Treatment ◽  
Wetland Plants ◽  
Water Bodies ◽  
Candidate Country ◽  
The European Union ◽  
Wastewater Purification ◽  
Quality Water ◽  
The Republic ◽  
The Eu

Abstract The process of integration into the European Union (EU) requires from new member states significant efforts; not only harmonizing legislation but also respecting all posed standards. Among numerous issues, wastewater purification represents a significant request. To achieve the goal of discharging good-quality water into natural water bodies as recipients, various methods have been used. The method of constructed wetland (CW) is based on wastewater purification by using wetland plants. The method of CWs shows the best results for small settlements for up to 5,000 inhabitants and can be nicely integrated within the landscape of a plain where waterbodies’ banks are overgrown by wetland plants. Such facilities have been used for decades in the territory of the EU, and only a few have been built in the Republic of Serbia. Since the Republic of Serbia is a candidate country for the EU, there is a strong intention to take action focused upon solving wastewater purification from various sources. Therefore, this paper aims to examine favourable locations for CW installations within the rural area of the South Bačka District. Geographic information system was applied for examination of the basic spatial criteria (distance from the settlement, distance from water bodies, elevation, and land use). These were presented in separate maps and finally in one joint map of favourability for establishing CWs in the vicinity of 35 villages within the District. The obtained results have fulfilled the basic spatial preconditions, but further analyses should be conducted to precisely position the location of each CW concerning land ownership criterion.

scholarly journals НОРМИРОВАНИЕ ЭМИССИЙ ПРИ СБРОСАХ В ГЛУБОКИЕ ВОДОНОСНЫЕ ГОРИЗОНТЫ

2020 ◽  
Vol 2 (34(61)) ◽  
pp. 8-11
Author(s):  
N. Kalmykova ◽  
A. Zelenin ◽  
V. Sadomskiy
Keyword(s):  
Surface Water ◽  
Industrial Wastewater ◽  
Water Bodies ◽  
Hazardous Substances ◽  
Environmental Legislation ◽  
Oil Companies ◽  
Deep Underground ◽  
Surface Water Bodies ◽  
The Republic ◽  
Safe Condition

Deep underground reservoirs are characterized by a stable structure with unique properties to contain and retain various production waste for a long time in a safe condition. In this context, deep underground aquifers are considered as localized underground targets designed for industrial waste disposal to prevent or reduce a maninduced load on surface water bodies, resources of which are sought-for the drinking and domestic water supply.  In the environmental legislation of the Republic of Kazakhstan, the limits for the environmental emissions are established within the maximum permissible discharges (MPD) of industrial wastewater exclusively for surface water bodies. At the same time, no define procedural conditions were determined in the legal norms for MPD limitation when injecting industrial wastewater to the underground aquifers that are also referred to the water bodies as defined.  A methodological approach to the limitation of harmful and (or) hazardous substances in industrial wastewater injected to the deep underground localized horizons is considered in the proposed review based on the existing developments of the leading oil companies in the Republic of Kazakhstan taking into account the requirements of the national environmental legislation.

scholarly journals Landscape Special Features of the Kabardino-Balkaria Small Waterfalls Functioning

2017 ◽  
Author(s):  
Keyword(s):  
River Channel ◽  
Water Bodies ◽  
Environment Protection ◽  
Rational Use ◽  
Field Investigations ◽  
The Republic ◽  
First Time ◽  
Ecological Functioning

The results of the study of the Republic of Kabardino-Balkaria small waterfalls functioning peculiar features are presented. The objective of the work is to reveal the landscape/geo/morphological structures and river channel features of the small waterfalls functioning for further rational use for recreational, medical and environment protection purposes. Geo/morphological and hydrological forms of small waterfalls of the inter-rock/crack genesis, as well as special features of the “giant pot” formation for small waterfalls of the channel and inter-rock/crack genesis have been considered for the first time. Field investigations of the landscape territories (waterfall zones) of Kabardino-Balkaria in the Malka, Baksan, Chegem, Cherek-Bezengiyskiy, Cherek-Balkarskiy, etc. have been conducted; the small waterfalls landscape/geo/morphological (hydrological and ecological) functioning features have been discussed. It was noted that the the principle of priority of water bodies protection was not always completely taken into consideration in the waterfall use for recreational, medicinal and other purposes.

scholarly journals FAUNISTIC CHARACTERISTICS AND SPECIES COMPOSITION OF BLOODSUCKING MOSQUITOES (DIPTERA, CULICIDAE) IN THE REPUBLIC DAGHESTAN

2018 ◽  
Vol 13 (2) ◽  
pp. 22-31
Author(s):  
Sadaget S. Gadzhieva
Keyword(s):  
Species Composition ◽  
Natural Water ◽  
Climatic Conditions ◽  
Water Bodies ◽  
Blood Sucking ◽  
The Republic ◽  
Malaria Mosquitoes ◽  
Artificial Reservoirs ◽  
Natural Water Bodies

Aim. The main aim of the research is to study the conditions of existence and the timing of the development of the preimaginal and imaginal phases of blood-sucking mosquitoes, depending on the natural and climatic conditions. Methods. Adult species were collected at the roost sites and at the time of swarming with the use of scoop net every five days throughout the season. The larval phases of bloodsucking mosquitoes were taken into account in all given reservoirs of various types using a photocell. Discussion. The results of the study showed that in the study area, the largest region where mosquitoes are reproduced is mainly artificial reservoirs accounting for approximately 65%, natural water bodies (25%) and hollows of tree trunks (10%). The saturation of the larvae of the malarial mosquito of the genus Anopheles was 82 species/m2, non malaria mosquitoes of the genus Culex – 234 species/m2, while Aedes genus made up 105 species/m2. Conclusion. There are 19 species of mosquitoes inhabiting Dagestan. The development of preimaginal and imaginal phases of blood-sucking mosquitoes on the territory of Dagestan is ecologically diverse.

scholarly journals Aquatic bioresources of artificial water bodies in Republic of Mordovia (case of Turgenev Reservoir)

2021 ◽  
Vol 0 (4) ◽  
pp. 7-16
Author(s):  
Alik Yusupovich Asanov ◽  
Aleksey Nosov
Keyword(s):  
Production Capacity ◽  
Fish Fauna ◽  
Free Food ◽  
Water Bodies ◽  
Small Fish ◽  
Water Reservoirs ◽  
Commercial Fish ◽  
Central Russia ◽  
The Republic ◽  
Artificial Reservoirs

On the territory of the Republic of Mordovia there are found more than 220 multi-purpose ponds and water reservoirs built on the watercourses. The Turgenev Reservoir on the Alatyr River is a typical channel artificial reservoir. The results of comprehensive fisheries research for the period of 2009–2015 are presented. Analysis of the fod der base showed a significant underutilization of zoobenthos and phytoplankton. Using the average indicators of the fodder base over the above period, the production capacity of the reservoir fodder base was calculated, which amounted to 39.69 tons or 405 kg/ha. According to the results of research fishing with fry seine, the ichthyomass of small fish species and juveniles under the age of two years is estimated by years at the level of 8 tons or 73–91 kg/ha. According to the results of net catches, the ichthyomass of the commercial fish fauna is at the level of 6.3 t or 64 kg/ha; the total ichthyomass is 146 kg/ha. The possible catch of mainly small fish in the Turgenev Reservoir can make 5–7 tons, and in total in the Republic of Mordovia in the multi-purpose water reservoirs - about 260 tons. Due to the reconstruction of ichthyofauna at the expense of a free food base, reproduction, fish- and water protecting measures the catches of marketable fish in ponds and water bodies of Mordovia can reach 1000 tons. The artificial reservoirs of the republic have a significant regulated potential of the aquatic biological resources for the low-water regions of Central Russia both providing the population with freshwater fish and creating the conditions for active and useful recreation on the territory near the water reservoirs: developing facilities for sport and amateur fishing and tourism.

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