scholarly journals ДИНАМІКА ВМІСТУ НІТРОГЕНОВМІСНИХ СПОЛУК У ГІДРОЕКОСИСТЕМАХ РІЧОК ПРИП’ЯТЬ ТА ТУРІЯ

Author(s):  
H. B. Humeniuk ◽  
O. S. Voloshun ◽  
V. O. Khomenchuk ◽  
N. G. Zinkovska N. G. Zinkovska N. G. Zinkovska

Nowadays the majority of rivers in Ukraine in general and the Volyn region in particular are contaminated as environmental protection measures are not taken. The Turia and Prypiat Rivers also suffer from human activity. They have recently undergone considerable anthropogenic pressure, which caused water pollution with industrial, municipal wastewater, deterioration of water quality, overgrowth of the bed, flowering of water, etc. In this regard, the assessment of water quality is extremely important. Concentrations of nitrogen of ammonium nitrites in investigated reservoirs are within the limits of MPC. Targeted environmental assessment of the water quality of the Turia and Prypyat rivers has been carried out.

2021 ◽  
Vol 78 (3) ◽  
pp. 40-45
Author(s):  
Hala Kabtoul

Barada Basin, where the capital of Syria, Damascus, is located, and hence where most of the human activities are concentrated, suffers from serious environmental problems due to the migration from rural areas, illegal settlements, industrialization, urbanization, and overexploitation of environment. Huge amounts of wastewater (domestic, industrial, and agricultural) are discharged every day to the landscape as well as into Barada and Awaj Rivers without sufficient treatment. This paper is devoted to the water pollution issues in Barada Basin. River water quality has been analyzed, some studies on the assessment of pollution in the Barada River are presented, environmental protection measures and restoration of the river ecosystem are recommended.


1997 ◽  
Vol 13 (2) ◽  
pp. 175-184 ◽  
Author(s):  
J. Curt Stager ◽  
Peter R. Leavitt ◽  
Sushil S. Dixit

2019 ◽  
Vol 42 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Igor Gopchak ◽  
Tetiana Basiuk ◽  
Ihor Bialyk ◽  
Oleg Pinchuk ◽  
Ievgenii Gerasimov

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.


2006 ◽  
Vol 86 (2) ◽  
pp. 75-88 ◽  
Author(s):  
Dejan Filipovic ◽  
Danijela Obradovic ◽  
Velimir Secerov

The characteristics of existing environmental conditions are basis for any kind of further environmental investigation in certain area. Special attention must be dedicated to the problem of water pollution and their protection, in view of water as one of the most valuable recourse in this area. This paper analyses existing water conditions in the Municipality of Kladovo and proposes mitigation measures.


2017 ◽  
Vol 7 (2) ◽  
Author(s):  
Jelena Malenović-Nikolić

The use of the Analytic Hierarchy Process (AHP) methodology for the assessment of mining and energy complex impact on water quality involves the ranking of key environmental aspects and the prioritization of environmental protection measures. This paper reduces the choice of indicators to four dominant effects of operational activities, which to the largest extent disturb the quality of basic environmental elements. The criteria were developed with the aim to facilitate the comparison of results from multiple mining and energy complexes, improve safety system modelling, and facilitate the assessment of the effects of critical operational activities on water quality. Key words: environmental, energy complex, indicators, safety engineering, water


2020 ◽  
Vol 6 (2) ◽  
pp. 79-88
Author(s):  
Z.O. Normakhmedova ◽  
◽  
A.V. Mitusov

This article presents the study results of the change dynamics in the chemical composition of water in Lake Iskanderkul and the rivers flowing into it, as well as the comparison of water quality in the water bodies of the Iskanderkul Basin and several mid-stream tributaries of the Zarafshan River. It was established that the chemical composition of water in Lake Iskanderkul and its tributaries meets the requirements of the corresponding state standard (GOST 2874-82 “Drinking Water”). However, in terms of dissolved oxygen, copper, zinc, lead and iron the water in Lake Iskanderkul does not satisfy fish farming requirements. The main water pollution sources in the area include such natural phenomena as floods, avalanches, mudslides, and rock dissolution.


Author(s):  
M. E. Folkoff ◽  
E. A. Venso ◽  
D. W. Harris ◽  
M. F. Frana ◽  
M. S. Scott

This study is only the second to use DNA fingerprinting technology in Maryland to identify fecal coliform sources in order to guide the implementation of water pollution control practices in a watershed with bacterial impairment. By combining the use of digital air photos and GPS with GIS, fieldwork is planned and conducted more efficiently because sample sites can be selected that accurately represent the physical environment of the study area. We can also return to the field and find our sample sites or locate new ones, even in the remotest part of the study area. It is also possible to more accurately map the data directly in the context of its physical environment, greatly increasing the quality of analysis. The integration of DNA fingerprinting techniques with GIS shows great promise for extending our capabilities to identify the controls on water quality and point sources of waterborne health hazards.


2012 ◽  
Vol 518-523 ◽  
pp. 164-167
Author(s):  
Bao Yuan Pan ◽  
Guo Ting Yang ◽  
Yun Ma ◽  
Yi Bin Ren

China is a country with a large lakes, with the development of social economy, the water pollution of lakes is more serious, lake’s eutrophication has become the major environmental problems of the China's lakes and reservoirs. This document explains through the investigation and evaluation environment to analyze the current situation and the pollution of Jingbo Lake, and puts forward countermeasures and pollution control environmental protection measures for management of Jingbo Lake, develop and provide technical reference of Jingbo Lake.


2012 ◽  
Vol 65 (11) ◽  
pp. 2071-2078 ◽  
Author(s):  
Haiyang Chen ◽  
Yanguo Teng ◽  
Jinsheng Wang

A framework for characteristics identification and source apportionment of water pollution in the Jinjiang River of China was proposed in this study for evaluation. A total of 114 water samples which were generated between May 2009 and September 2010 at 13 sites were collected and analysed. First, support vector machine (SVM) and water quality pollutant index (WQPI) were used for water quality comprehensive evaluation and identifying characteristic contaminants. Later, factor analysis with nonnegative constraints (FA-NNC) was employed for source apportionment. Finally, multi-linear regression of the absolute principal component score (APCS/MLR) was applied to further estimate source contributions for each characteristic contaminant. The results indicated that the water quality of the Jinjiang River was mainly at the third level (65.79%) based on national surface water quality permissible standards in China. Ammonia nitrogen, total phosphorus, mercury, iron and manganese were identified as characteristic contaminants. Source apportionment results showed that industrial activities (63.16%), agricultural non-point source (16.50%) and domestic sewage (12.85%) were the main anthropogenic pollution sources which were influencing the water quality of Jinjiang River. This proposed method provided a helpful framework for conducting water pollution management in aquatic environment.


2021 ◽  
Vol 1 (1) ◽  
pp. 21-24
Author(s):  
Afshan Urooj ◽  
Rida Ilyas ◽  
Nimrud Humayun Humayun

Water pollution has been a hot debate for government and scientists. in addition, protecting river water quality is exceedingly immediate because of serious water pollution and global scarcity of water reservoir. This study was conducted to assess the effect of solid waste dumping on surface water quality. In return to achieve this, water samples were obtained in different months from site. Below site was selected due to the dumps on surface water. Water parameters pH, turbidity conductivity and temperature were determined using pH/conductivity meter, Most the values are within the permissible limits, but all the samples do not fulfill WHO requirements, site may have effects on human health due to waterborne diseases and on soil fertility.


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