Results 251 to 260 of about 15,204,033 (285)

Characteristics of Surface Water Quality

2016
This chapter gives a brief overview of the main parameters and indicators influencing the surface water quality as well as an average data characterizing their temporal spatial distribution within the main river basins of Ukraine.
Volodymyr Osadchyy, Bogdan Nabyvanets, Petro Linnik, Nataliia Osadcha, Yurii Nabyvanets   +4 more
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Surface Water Quality Indicators

1992
Recent political pressures, often by environmental groups, have forced many of the Governments of the individual Member States to take a more positive approach to the management of the quality of surface waters within their country. This has increased markedly the need for monitoring the quality of surface water throughout the Community over the last ...
openaire   +1 more source

Chemical contamination and the ecological quality of surface water

Environmental Pollution, 2010
In the assessment of the quality of surface waters, the typical procedure is that the concentration of contaminants in the surface water is monitored and subsequently compared with their respective Maximum Permissible Concentrations (MPCs). If the MPCs are not exceeded the water quality is considered to be safe. But can we be certain that this is true?
Baas, J., Kooijman, S.A.L.M.
openaire   +2 more sources

Surface Water: Discharge Rate and Water Quality

2016
Global changes in climate and land use influence both the quality and quantity of surface water. In the surface water sub-project, discharge and water quality parameters for the Danube drainage basin water network up to gauge Achleiten were calculated using the Rivernetwork component and then made available for other models such as Economy, Tourist and
Winfried Willems, Georg Kasper, Peter Klotz, Konstantin Stricker, Astrid Zimmermann   +4 more
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Surface and subsurface water quality appraisal for irrigation

Environmental Monitoring and Assessment, 2008
Use of irrigation water available from various sources in agriculture is justified on agronomic and economic grounds but care must be taken to minimize its adverse environmental and health impacts. During the study 44 water samples, available from the various resources viz., canal, sewage pipe line, tube wells in confined aquifers, tube wells in ...
R K, Isaac, T K, Khura, J R, Wurmbrand
openaire   +2 more sources

Assessment of the surface water quality in Northern Greece

Water Research, 2003
The application of different multivariate statistical approaches for the interpretation of a large and complex data matrix obtained during a monitoring program of surface waters in Northern Greece is presented in this study. The dataset consists of analytical results from a 3-yr survey conducted in the major river systems (Aliakmon, Axios, Gallikos ...
V, Simeonov, J A, Stratis, C, Samara, G, Zachariadis, D, Voutsa, A, Anthemidis, M, Sofoniou, Th, Kouimtzis   +7 more
openaire   +2 more sources

Surface Water Quality Analysis

1986
The objective of the 1972 Federal Water Pollution Control Act Amendments is to restore and maintain the chemical, physical, and biological integrity of the Nation’s waters [45]. In order to achieve this objective, the Act requires each State to establish specific water quality standards for natural waters within its boundary.
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Quality of water - surface and subsurface

1982
One of the major concerns of those involved in water management is the maintenance of water quality, the avoidance of degradation that may be hazardous to health. The primary threats to health come from the chemical loading of surface and subsurface water reservoirs derived from a multitude of sources.
Siever, Raymond, Stumm, Werner
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Quality Appraisal of Surface Waters on Fennoscandian Territory

Water Resources, 2004
Widely applied bioindication methods are analyzed based on the survey data of 1980-1996 for over 400 lakes and 300 watercourses in the northeastern Fennoscandia known to experience anthropogenic impact (toxification, acidification, eutrophication, and thermofication).
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A Dynamic Spatial Indicator of the Surface Water Quality

The evaluation of water quality usually considers the effect of different physical and chemical parameters, which can vary across space and time. In this context, it is crucial to build a spatio-temporal composite indicator which might provide useful insights for a sustainable development and might support strategies for saving water and controlling ...
Congedi, Antonella, De Iaco, Sandra
openaire   +1 more source