scholarly journals Quality of water resources in the Niger basin and in the region of Lagos (Nigeria)

2017 ◽  
Vol 13 (1) ◽  
pp. 51-60 ◽  
Author(s):  
Olusegun Adeaga ◽  
Gil Mahe ◽  
Claudine Dieulin ◽  
Francoise Elbaz-Poulichet ◽  
Nathalie Rouche ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
Trace Element ◽  
Quality Standards ◽  
Water Type ◽  
Metal Concentrations ◽  
Quality Of Water ◽  
Sampling Locations ◽  
Trace Element Contamination

AbstractWater quality studies in Nigeria are usually conducted at local scales and limited to a restricted number of chemical contaminants, while reliable data on trace metal concentrations (including arsenic) are relatively scarce. This study focuses on the quality of available renewable water resources in terms of major ion and trace element concentrations at selected sampling locations in the Lower River Niger basin and part of the Lagos region. A screening of water contamination by arsenic and heavy metals was carried out through water sampling at selected locations using in situ measurement and laboratory testing to estimate heavy metal concentrations and water type. The analysis reveals moderate trace element contamination of the water resources, with the exception of Pb, while Mn and, to a lesser extent, Al exceeded WHO quality standards, but the Arsenic concentrations are within drinking water quality standards and are safe for consumption and irrigation, while the water type is Bicarbonate.

Management and Status of Japanese Public Waters

1991 ◽  
Vol 23 (1-3) ◽  
pp. 1-10 ◽  
Author(s):  
Takeshi Goda
Keyword(s):  
Water Quality ◽  
Coastal Waters ◽  
Industrial Wastewater ◽  
Quality Standards ◽  
Water Bodies ◽  
Industrial Wastewaters ◽  
Quality Of Water ◽  
Japanese Rivers ◽  
Per Capita

The management and status of public water bodies in Japan is discussed. The environmental quality standards which have been set and the levels of compliance with these standards are shown. The water quality of Japanese rivers, lakes, reservoirs, wetlands and coastal waters is described, and eutrophication problems are mentioned. The effects of changes in population density and levels of recycling of industrial wastewaters on the quality of water bodies are discussed. Almost 75% of industrial wastewater is now recycled. Per capita availability of freshwater in Japan is comparatively low, and the construction of 530 dams, in addition to the 2393 dams already in operation, is planned. Irrigation effluents from paddy fields are a major factor which influences river water quality in Japan. The improvement of water quality using various methods is discussed.

New Standards for the Chemical Quality of Water in Europe under the New Directive 2013/39/EU

2014 ◽  
Vol 11 (1) ◽  
pp. 31-48 ◽  
Author(s):  
Katharina Kern
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Water Policy ◽  
Quality Standards ◽  
Priority Substances ◽  
Chemical Quality ◽  
Quality Of Water ◽  
Harmful Substances ◽  
Watch List

Directive 2013/39/EU amending Directives 2000/60/EC and 2008/105/EC as regards priority substances in the field of water policy was adopted on 12 August 2013. It revises crucial rules on determining the chemical quality of surface water in Europe (e.g. identification of new harmful substances, updating of environmental quality standards, introduction of a new “watch list” mechanism) and establishes new standards for the protection of water in Europe. This paper explores the legal and factual background to the new legislation on protecting water quality in Europe and takes a critical look at its most important provisions.

scholarly journals Analysis Quality of Water River and Quality of Well Water in The Surrounding of Rejo Agung Baru Sugar Factory Madiun

2018 ◽  
Vol 10 (1) ◽  
pp. 1 ◽  
Author(s):  
Susanti Oktavia Ningrum
Keyword(s):  
Water Quality ◽  
Agricultural Waste ◽  
Water Quality Management ◽  
Domestic Wastewater ◽  
Quality Standards ◽  
Water Quality Monitoring ◽  
Well Water ◽  
Sugar Factory ◽  
Quality Of Water

The quality of wastewater sugar factory produced will affect the environmental health quality around the factory. The study aimed to analyze the quality of water river and the quality of wells around the Rejo Agung Baru sugar factory in the Madiun. This study is an descriptive observational. The samples comprised of 5 sampels of water rivers and 7 samples of well water. The results of the study at the quality of water river showed that there are parameters (BOD5 and temperature) unqualified with the quality standards based on the East Java Regional Regulation No. 2 of 2008 about Water Quality Management and Water Pollution Control in the East Java, the quality of water river is also affected by the waste water, trash, agricultural waste, and other pollutants. The result of measuring the quality of water well showed that there are parameters (organic substance) unqualified with quality standards based on Permenkes No: 416/Menkes/PER/ IX/1990 about the Terms and Water Quality Monitoring, the quality of Well water is also affected by the quality of water river, a distance of toilet, domestic wastewater and other pollutants. The quality of water river and the quality of well water have decreased that required supervision on the quality of a river water and the quality of water of a well.

scholarly journals The Quality of Water Resources as a Factor of Regional Strategizing

2019 ◽  
pp. 143-153
Author(s):  
Natalya Kosolapova ◽  
Lyudmila Matveeva ◽  
Olga Chernova
Keyword(s):  
Water Quality ◽  
Economic Development ◽  
Water Resources ◽  
Water Quality Management ◽  
Water Quality Monitoring ◽  
The State ◽  
Water Users ◽  
Quality Of Water ◽  
Social And Economic Development

The purpose of this article is to study the processes of water quality management, which are considered as the main factor of the strategic social and economic development of the region and also to form tools supporting this process. The article analyzes the state and development trends of the water sector of the Rostov region from the standpoint of solving the problems of its strategic social and economic development. The authors demonstrate the possibility of intellectualization of regional strategizing processes through the use of water quality monitoring of the knowledge of experts with the use of fuzzy logic. The review of existing approaches to the assessment of water resources quality is given. It is shown that these approaches do not take into account the different requirements of water users to the content of chemicals and compounds in the water but assess the state of water resources in terms of conformity of concentration indices of polluting substances to maximally allowable concentrations. The authors suggest assessing the quality of water resources in compliance with the criteria of the contamination of water resources set for every category of water users. The approach proposed by the authors implies the assessment of water quality in two modes – differentiated and complex. Meanwhile, the suggested tools are universal and can be used in the systems of regional strategizing of the use of various water basins. A conceptual representation of the structure of the management system of water resources quality in the region within the system of regional strategizing is formed and the main problems of its development are identified.

Forecasting the effects of polluting discharges on rivers with special reference to the River Trent (summary only)

1972 ◽  
Vol 180 (1061) ◽  
pp. 437-438
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
Special Reference ◽  
Economic Advantage ◽  
The Other ◽  
System A ◽  
Quality Of Water ◽  
The Subject

In order to decide the measures needed to control pollution in rivers and to exploit their resources to the best economic advantage it is necessary to be able to forecast the effects of polluting discharges on the quality of water within them. Given this ability it is then possible to assess the costs of maintaining the water in a condition suitable for any desired use and thus to judge whether attainment of this objective is economically feasible and compares favourably with any other proposed use of the system. A focus for discussion of techniques for forecasting water quality is the situation in the River Trent, which is currently the subject of a wide ranging collaborative investigation, initiated by the Water Resources Board, aimed at establishing the best means of utilizing the water resources of the catchment to meet the expected demands for massive additional supplies in the area over the next few decades. The flow of water in the rivers of the system, per unit of population draining to them, varies considerably and in a qualitative sense correlates with differences in their present quality, those with high ratios of flow to population being generally of good quality, permitting their use as sources of potable supply, and those at the other end of the spectrum being badly polluted to the extent of being fishless.

scholarly journals Characterization of Irrigation Water Quality Parameters Using Geo-Statistical Approach

Agropedology ◽  
2019 ◽  
Vol 29 (2) ◽  
Author(s):  
G.S. Tagore ◽  
◽  
H. K. Rai ◽  
Keyword(s):  
Water Quality ◽  
Irrigation Water ◽  
Agricultural Development ◽  
Quality Parameters ◽  
Irrigation Water Quality ◽  
Quality Of Water ◽  
Sampling Locations ◽  
Physico Chemical

Recent past has witnessed ever increasing importance of water in agricultural development that necessitates precise assessment of spatial variability in irrigation water quality of ground water resources and its optimal utilization. Present study was aimed to characterize the variability in quality of irrigation water across the Rewa district of Madhya Pradesh using geo-statistical techniques. The results are compared with univariate interpolation algorithms such as ordinary kriging and inverse distance weighing. The comparisons were performed with cross validation at sampling locations and assessed based on mean and root means squared errors. The results revealed that all the physico-chemical parameters exist within the permissible limits as per the standards hence quality of water is safe for irrigation purposes.

scholarly journals Social and ecological aspects of the water resources management of the transboundary rivers of Central Asia

2014 ◽  
Vol 364 ◽  
pp. 441-445 ◽  
Author(s):  
P. Normatov
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
River Pollution ◽  
Industrial Complex ◽  
Conflict Situations ◽  
Quality Of Water ◽  
Ecological Aspects ◽  
Hydropower Production ◽  
The Republic

Abstract. The Zeravshan River is a transboundary river whose water is mainly used for irrigation of agricultural lands of the Republic of Uzbekistan. Sufficiently rich hydropower resources in upstream of the Zeravshan River characterize the Republic of Tajikistan. Continuous monitoring of water resources condition is necessary for planning the development of this area taking into account hydropower production and irrigation needs. Water quality of Zeravshan River is currently one of the main problems in the relationship between the Republics of Uzbekistan and Tajikistan, and it frequently triggers conflict situations between the two countries. In most cases, the problem of water quality of the Zeravshan River is related to river pollution by wastewater of the Anzob Mountain-concentrating Industrial Complex (AMCC) in Tajikistan. In this paper results of research of chemical and bacteriological composition of the Zeravshan River waters are presented. The minimum impact of AMCC on quality of water of the river was experimentally established.

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