scholarly journals Ecological state of the river Ural

2017 ◽  
pp. 18-24
Author(s):  
Gul'zhamal Tulemisova ◽  
Rauan Abdinov ◽  
Gaukhar Kabdrakhimova ◽  
Тalap Janetov
Keyword(s):  
Anthropogenic Pollution ◽  
Petroleum Products ◽  
Ecological State ◽  
Important Indicator ◽  
Hydrochemical Regime ◽  
Water Composition ◽  
Quality Of Water ◽  
Flood Period ◽  
Almost All

The article describes the ecological state of the Ural River at the present stage. Hydrochemical regime of the reservoir is an important indicator to regulating the number of water resources. As the Ural River is the transboundary reservoir, it is prone to contamination from various areas in the upper and middle reaches. Monitoring of the ecological state of the Ural River showed the presence of anthropogenic pollution. The hydrochemical regime of the reservoir is subject to changes in seasonal variations in water composition. In spring, with flood waters, the main pollution enters the river, however in other seasons, the quality of water leaves much to be desired. In autumn, in comparison with the spring, both alkalinity and salinity increased. The reservoir is prone to contamination with nitrites in almost all seasons of the year from 0.05 to 0.20 mg/dm3 (December, 2016). In the lower reaches of the Ural River, the content of readily oxidizable organic compounds ranges from 3.2 mg/dm3 (winter) to 7.36 mg/dm3 (autumn). The content of boron exceeds the maximum permissible concentration 1-3 times. Environmental monitoring conducted in different periods of the year showed a constant source of pollution flow into the reservoir, which was increased in the flood period. Concentrations of nitrite, boron and petroleum products in the Ural River exceed their permitted values at the point in the end of Uralsk city. The results of the research confirm that the source of the contamination of Ural River is its confluent Ilek River originating from Aktobe Oblast.

scholarly journals Assessing state of water protection zones of Volga River within Ilyinka village area (Astrakhan region)

2021 ◽  
Vol 0 (4) ◽  
pp. 91-97
Author(s):  
Ekaterina Vasil'eva ◽  
Irina Melnik
Keyword(s):  
Anthropogenic Pollution ◽  
Petroleum Products ◽  
Water Protection ◽  
Volga River ◽  
Protection Zones ◽  
Molybdenum Sulfides ◽  
Quality Of Water ◽  
Maximum Permissible Concentrations ◽  
State Of Water ◽  
The Impact

Anthropogenic pollution of water basins may become a serious threat for ecosystems and human health. Pollutants are transferred through food chains or directly when untreated water is used, released to soil through subsoil waters or during floods. The increased anthropogenic load on rivers’ hydrosystems, especially in their del-tas, is becoming rampant these days. The goal of the research is to study the coastal areas and to assess the state of vegetation. To achieve this goal, standard methods of biotesting and bioindication were applied in the territories of two water-protection zones – those of the Volga River and the Nozhovskiy erik (shallow channel in the Volga delta – translator’s note) near the Ilyinka village. The water quality in the Volga River, within the examined range, is stably characterized as “dirty” (4th class). The exceeded level of maximum permissible concentrations for petroleum products, heavy metals (mercury, zinc, molybdenum), sulfides and phenols is observed. The research has not revealed the impact of the quality of water on phytotoxicity of the soil and indices of abundance of the vegetation that grows in this territory. Toxicity of soils is weak in the area of the Nozhovskiy erik, it is very weak in the area of the Volga River: the germination capacity of the test object (watercress) ranges between 67 and 88%, morpho-metric indices of plants do not differ much from those in control groups. Within the summer period the monitoring sites were characterized by the maximum frequency-abundance indices of typical representatives of the local flora, which are camel thorn (Alhagi pseudalhagi) and greater burdock (Arctium lappa). Vegetation in these areas is abundant, its state is assessed as satisfactory.

ASSESSMENT OF THE QUALITY OF THE LAKE KOPA OF THE CITY OF KOKSHETAU BY HYDROCHEMICAL INDICATORS

2021 ◽  
Vol 102 (3) ◽  
pp. 74-79
Author(s):  
A.T. Sadvokasova ◽  
◽  
I.B. Fakhrudenova ◽  
T.S. Karnaukhova ◽  
R.M. Contrastinova ◽  
...  
Keyword(s):  
Water Pollution ◽  
Water Body ◽  
Ecological State ◽  
Hydrochemical Regime ◽  
The City

This article provides a brief description of the Kopa Lake in the Akmola region. The results of the study of the ecological state of the water body for 2018...2020 are presented. The analysis of the hydrochemical regime of water is carried out, the index of water pollution is determined. According to the data we received, the reservoir is exceeding the MPC in some indicators.

scholarly journals Evaluation of anthropogenic pollution in river water based on the genetic diversity of Aeromonas hydrophila

2012 ◽  
Vol 38 (3) ◽  
pp. 41-50 ◽  
Author(s):  
Karol Korzekwa ◽  
Iwona Gołaś ◽  
Monika Harnisz
Keyword(s):  
Genetic Diversity ◽  
River Water ◽  
Aeromonas Hydrophila ◽  
Microbiological Quality ◽  
Anthropogenic Pollution ◽  
Electrophoretic Patterns ◽  
Quality Of Water ◽  
Water Based ◽  
Many Sources

Abstract Aeromonas hydrophila is a valuable indicator of the quality of water polluted by sewage and pathogens that pose a risk for humans and cold-blooded animals, including fi sh. The main aim of this research was to evaluate anthropogenic pollution of river water based on genetic diversity of 82 A. hydrophila strains by means of RAPD, semi-random AP-PCR (ISJ) and the rep-BOX conservative repeats test. Genetic diversity of A. hydrophila was HT = 0.28 (SD = 0.02) for all DNA markers (RAPD, semi random and rep-BOX). None of the analyzed electrophoretic patterns was identical, implying that there were many sources of strain transmission. The presence of genes for aerolysin (aerA), hemolysin (ahh1) and the cytotoxic enzyme complex (AHCYTOGEN) was verifi ed for all tested strains, and drug resistance patterns for tetracycline, enrofl oxacin and erythromycin were determined. The most diverse A. hydrophila strains isolated from river water were susceptible to enrofl oxacine (HS = 0.27), whereas less diverse strains were susceptible to erythromycin (HS = 0.24). The presence of the multidrug resistance marker (ISJ4-25; 1100 bp locus) in the examined strains (resistant to three analyzed drugs) indicates that intensive fi sh cultivation affects the microbiological quality of river water.

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.

scholarly journals Assessment of water quality bounamoussa river in el tarf region using water quality index (Algeria)

2020 ◽  
Vol 4 (6) ◽  
pp. 299-302
Author(s):  
Lilia Zaoui
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Water Quality Index ◽  
Quality Index ◽  
Study Region ◽  
Drinking Purposes ◽  
Quality Of Water ◽  
Almost All ◽  
Continue Monitoring

Water quality is an important standard in matching water require and contribute. Abundant degree of freshwater is prominent for biological requirements and is a vital surface of incorporated environmental managing and sustainable development. The quality of water indices evaluation enterprise particular value which reduce the immense quantity of parameters and simply characterize data. The aim objective of the present study is to assess the suitability of surface water of Bounamoussa River situated in El-Tarf city located in the Algerian's extreme northeast, for drinking purpose based on calculated water quality index standards. Per methodology, WQI is a significant parameter to check the quality of water, and its calculation was carried out by using relations given in the water quality index computation which twelve selected parameters (pH, EC,TH, Ca, Mg, Na, K, Cl, NH4, SO4, NO2, NO3) have been considered, which were measured at nine stations along the river during two sampling campaigns (winter and summer seasons). The results showed that the computed WQI values of Bounamoussa River surface water extend from 32,80 to 65,77 with an average 46,76 in winter and fluctuate from 35,86 to 97,46 with an average of 47,25 in summer, in general, the study region in both seasons is under excellent to good category. Water from almost all the sampled sites can be careful as suitable for drinking purposes. It’s recommended to continue monitoring the water of this ecosystem to facilitate the establishment at all levels to supervise and defend the natural resources of the region.

scholarly journals Kelimpahan Serangga Air di Sungai Toraut Sulawesi Utara

Jurnal MIPA ◽  
2014 ◽  
Vol 3 (2) ◽  
pp. 74 ◽  
Author(s):  
Yudi Candra ◽  
Marnix Langoy ◽  
Roni Koneri ◽  
Marina F. O. Singkoh
Keyword(s):  
Aquatic Insects ◽  
Random Sampling ◽  
National Park ◽  
Sampling Method ◽  
North Sulawesi ◽  
Quality Of Water ◽  
Lotic Habitat ◽  
Almost All ◽  
Surber Sampler

Serangga air merupakan kelompok Arthropoda yang dapat dijumpai hampir pada jenis perairan misalnya pada habitat lentik atau lotik. Seranggan air dalam suatu ekosistem berperan penting dalam rantai makanan selain itu juga serangga air dapat dijadikan sebagai bioindikator terhadap penentuan kualitas suatu perairan. Penelitian ini bertujuan untuk menganalisis kelimpahan serangga air yang terdapat di Sungai Toraut. Lokai penelitian terletak pada Sub DAS dari DAS Dumoga Kabupaten Bolaang Mongondow, Sulawesi Utara. Sungai ini memiliki luas sekitar 249 km2 dan hulunya terletak di Taman Nasional Bogani Nani Wartabone (TNBNW). Penelitian ini menggunakan metode Purposive Random Sampling dengan menggunakan alat surber sampler. Total individu yang didapatkan dari 3 stasiun sebanyak 1497 individu dengan jumlah famili sebanyak 24 yang terdiri dari 27 spesies. Spesies serangga air yang paling banyak ditemukan pada stasiun satu, sedangkan yang sedikit pada stasiun 3. Kelimpahan spesies yang paling banyak ditemukan adalah Hydropsyche sp.Arthropods is a group of aquatic insects that can be found in almost all types of aquatic habitats for example lentic or lotic habitat. In the field of ecology, aquatic insects plays a role in the food chain, moreover the aquatic insects can be used as bioindicator to determine the quality of water. This study aims to analyze the abundance of aquatic insects found in the Toraut River. This study lies in the sub-watershed from the watershed of Dumoga Bolaang Mongondow, North Sulawesi. This river has an area of ​​approximately 249 km2 and its located in the headwaters of Bogani Nani Wartabone  National Park. The method used in this study is purposive random sampling method by using a sampler surber. Total individuals were obtained from 3 stations are 1497 individuals with total 24 families consisting of 27 species. The most commonly species of aquatic insects found at station 1, whereas slightly at station 3. The most commonly species of aquatic insects found is Hydropsyche sp.

HYDROCHEMICAL CHARACTERISTICS P. STRYI AND SOME OF ITS TRIBUTARIES IN THE SUMMER-AUTUMN PERIOD OF OBSERVATIONS

2020 ◽  
pp. 55-63
Author(s):  
A.O. Morozova
Keyword(s):  
Water Environment ◽  
Ecological State ◽  
The South ◽  
Storage Pool ◽  
Quality Of Water ◽  
Chemical Composition Of Water ◽  
Power Complex ◽  
Spatio Temporal ◽  
Seasonal Aspect

The paper presents the results of researches of the modern ecological state South Bug and Aleksandrovskogo of storage pool the affected of the South Ukrainian power complex zone on hydrochemical indexes (main ions, mineralization of water, biogenic matters), which are the indicators of the ecological state of natural reservoirs. Research of the hydrochemical mode South Bug and Aleksandrovskogo of storage pool within the limits of the South Ukrainian power complex conducted during 2019. An analysis of the got data is as compared to those, which took place more early, rotined that the water masses South Bug tested substantial changes (on the indexes of the chemical state). The conducted researches rotined that chemical composition of water S.Bug and Aleksandrovskogo of storage pool had been characterized sufficiently by the high values of mineralization of water, maintenance of main ions, especially sulfate and to general inflexibility.The features of spatio-temporal changeability of the main hydrochemical indicators of quality of water environment are set. Tendency of gradual increase of maintenance of main ions and of mineralization of water is traced on the longitudinal type of the river. The gradual diminishing from the winter to the summer and increase of mineralization of water and main ions an autumn is traced in a seasonal aspect. It is known that the important index of the sanitary-hygenic state of natural reservoirs is content of biogenic matters. Worsening of the ecological state South Bug and Aleksandrovskogo of storage pool is set on maintenance biogenic matters. Modern researches rotined that and here took place changes are certain, namely: on an area in the district of South Ukrainian power complex zone something the concentrations of nitrate and ammoniacal forms of mineral nitrogen and phosphatic ions grew, that testifies to the decline of selfcleansing ability of the river and is the index of process second contaminations of the river.

scholarly journals Analysis and Control of the Physicochemical Quality of Groundwater in the Chari Baguirmi Region in Chad

Water ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2826
Author(s):  
Allaramadji Beyaitan Bantin ◽  
Hongping Wang ◽  
Xia Jun
Keyword(s):  
Groundwater Resources ◽  
Anthropogenic Pollution ◽  
Physicochemical Quality ◽  
Geochemical Properties ◽  
Quality Of Water ◽  
Water Tables ◽  
Who Standards ◽  
Host Rocks ◽  
And Control

Water resources are threatened nowadays by pollution that comes from domestic, industrial and agricultural discharges without prior treatment. This pollution causes the degradation of water quality. Surface pollutants can seep through the soil into water tables. The objective of our work is to assess and control the physicochemical quality of the Chari Baguirmi groundwater, to protect human health. The quality of 83 boreholes was assessed, while performing analysis for 12 physicochemical parameters at the National Water Laboratory and at the Center for Quality Control of Foodstuffs in Chad. These parameters are pH, EC, Ca2+, Mg2+, Na+, K+, Cl−, SO42−, NH4+ and NO3−, Fe2+ and HCO3−. The results obtained were also compared with WHO standards. The geochemical statistical approach has made it possible to characterize hydro geochemical properties and to understand the major processes of mineralization of groundwater resources in the Chari Baguirmi region in Chad. Some of its waters are acidic and weakly mineralized, rich in Fe2+ and NH4+. The origin of the mineralization is due to the alteration of the host rocks and to the hydrolysis of silicate and ferromagnesian minerals, as well as anthropogenic pollution. The ammonium concentrations in N’Djamena boreholes are higher than WHO standards, indicating the presence of pollution which may come from organic waste. These results constitute a preliminary step in understanding hydro geochemical functioning and a basis for monitoring the physicochemical quality of water in the study area.

scholarly journals Physical-chemical and microbiological analysis of water of irrigation and microbiological analysis of lettuce (Lactuca sativa)

2019 ◽  
Vol 41 ◽  
pp. e55
Author(s):  
Camila Corrêa Bierhas ◽  
Aline Belem Machado ◽  
Simone Ulrich Picoli ◽  
Daniela Montanari Migliavacca Osorio ◽  
Daiane Bolzan Berlese
Keyword(s):  
Heterotrophic Bacteria ◽  
Microbiological Quality ◽  
Fecal Coliforms ◽  
Microbiological Analysis ◽  
Microbiological Contamination ◽  
Physical Chemical ◽  
Quality Of Water ◽  
Three Samples ◽  
Almost All

The contamination of vegetables by pathogenic microorganisms is directly related to the water quality used in their irrigation. Lettuce is the main vegetable consumed in Brazil and because it does not undergo any processing before its consumption, it is directly affected by the quality of the water used for irrigation. This study analyzed the physical-chemical and microbiological quality of water used in lettuce irrigation and possible microbiological contamination of lettuce. In relation to microbiological analyzes, high values were found for heterotrophic bacteria and total coliforms in weirs and vegetables. For fecal coliforms, in almost all water samples, the value found was above that established by the legislation. In lettuce, this occurred in three samples. No strong correlation was found between water and lettuce contamination. In relation to the physicochemical parameters analyzed, only the value of the turbidity in one of the weirs was above the threshold established by the legislation.

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