Czech Republic ; Fluvial water ; Pollution ; Stream ; Water ; Water pollution ; Waterquality
In the nineteens, a rapid reduction of water pollution in the elbe River has been achieved due to limitation of emissions from major industrial sources of point pollution in the upper and middle cours (1994-1995). The non-point sources are playing
Applied hydrology ; Czech Republic ; Estimation ; Mathematical model ; Simulation ; Water ; Water pollution ; Waterquality
quality in the water course, to identify the impact of various pollution sources and to predict waterquality changes over the time under changing external conditions. - (MS)
Mathematical modelling in the case of the main Czech rivers is based on simulation of water movement in the river bed and on consequent modelling of diffusion of pollutants. It makes possible to calculate a continuous longthwise-profile of water
Towards contextualizing urban environmental quality in the SADC region
Africa ; Air quality ; Environment ; Environmental management ; Living standard ; Nuisance ; Pollution ; Quality of life ; Southern Africa ; Urban environment ; Waterquality
A preliminary survey of urban environmental quality in the Southern African Development Community region is presented. A model is presented for monitoring the temporal dynamics in environmental quality in relation to the assumed drivers of change
Design of environmental decision support system and its application to waterquality management
China ; Delta ; Environmental management ; Geographical information system ; Guangdong ; Hydrodynamics ; Model ; Stream ; Water pollution ; Waterquality
EDSS is a comprehensive software system for waterquality management in tidal river networks in general and for the Pearl River Delta in particular. By combining the capabilities of geographical information system (GIS), database management system
, the system architecture, design features, implementation techniques and facilities provided. Thereafter, the core part of the system, the hydrodynamic and waterquality models are descrbed briefly.
(DBMS), model base management system (MBMS) and expert system, the aim is to improve the quality of decision making in what is becoming an increasingly complex area. This paper first outlines the basic concepts and philosophy adopted in developing EDSS
Dynamic variations of waterquality in Taihu Lake and multivariate analysis of its influential factors
Beijing ; China ; Eutrophication ; Lake ; Pollution ; Principal components analysis ; Seasonal variation ; Spatial variation ; Suspended load ; Waterquality
Dynamic variation of waterquality in Meiliang Bay and part of West Taihu Lake has been analysed based on data from 1991 to 1992. Principal component analysis is used to reveal the mutual relationships of various factors.
The impact of informal living conditions on waterquality in the Bloemfontein Municipality
Free State ; Informal settlement ; Living conditions ; Pollution ; South Africa ; Urbanization ; Waterquality
in a developing community live and the implications that this has on the quality of the water resources were identified by means of a field survey in the study area. - (AJC)
Health ; India ; Pollution ; Regional disparities ; Water ; Waterquality
In many parts of India, neither the quantity nor the quality of drinking water supplied to the public comply with required standards. In addition there are vast disparities between different regions and communities. The article deals with a chronic
Aquifer ; Development ; Groundwater ; Land use ; Puerto Rico ; Water pollution ; Waterquality ; Watershed
Water wells from four Puerto Rican municipios were tested for 15 water-quality parameters. Noxious chemicals contaminated this water, presenting risks to human health. - (DWG)
Applied hydrology ; Bohemia ; Czech Republic ; Estimation ; Impact study ; Water ; Water pollution ; Waterquality
Territorial aspects of waterquality in the Lužnice River Basin (South Bohemia) with special emphasis put on the running water. The impact of different human activities on the waterquality has been studied. The main role of phosphorus as a driving
Environmental security and shared water resources in post-Soviet Central Asia
Administrative structure ; Conflict ; Environment ; Former USSR ; Irrigation ; Natural resources ; Resource management ; Security ; Soviet Central Asia ; Water ; Waterquality ; Water resources
indicators to discover the potential for future water-based resource conflict. Waterquality and regional social unrest as a consequence of migration from regions of environmental deterioration are examined.
The paper examines the distribution of water and the location of physical and political boundaries in Central Asia, identifies indicators of the susceptibility of its various regions to resource and water-related conflict, and then applies those
A study on the relation between water cycle and groundwater quality in Sri lanka
Climate ; Evaporation ; Groundwater ; Hydrochemistry ; Isotope analysis ; Precipitation ; Salinisation ; Sri Lanka ; Topography ; Water ; Water cycle ; Waterquality ; Watershed
Groundwater quality is determined by interaction of principal environment factors such as climate, topography, geology and biota. In this study, groundwater quality was investigated in western Sri Lanka where climate condition changes greatly
whithin a relatively short distance. Sri Lanka is spatially divided into a dry zone, an intermediate zone and a wet zone, and there are rainy and dry seasons. Zonation of groundwater quality was made clear using field investigation, chemical and isotopic
Waterquality standards or carbon reduction : is there a balance ?
Carbon economy ; Environmental conservation ; Firm ; Optimization ; Regulation ; United Kingdom ; Water ; Water industry ; Waterquality
The paper explores the tensions and complexities experienced by water companies in England and Wales as they attempt to meet the contradictory legislative requirements. A simple model is used to explore the effect of increasing effluent quality
on power consumption and hence carbon emissions. In addition to complexities within the EU Water Framework Directive and UK Climate Change Act, water companies are restricted by the regulatory framework of the UK water industry and additional policies
A water « atlas » exercise with conservation students
Applied hydrology ; Ohio ; Pedagogy ; United States ; Water ; Water resources
, irrigation, public water supply, industrial water use and waterquality. - (DWG)
With information assembled by university-level geography students, the A. explains a three-stage approach to creating a water atlas of the State of Ohio that included maps of geology, climate, hydrology, soils, ecology, wetlands, groundwater
The influence of soil interstitial waters on the physicochemistry of major, minor and trace metals in stream waters of the Green Lakes valley, Front Range, Colorado
Colorado ; Ecosystem ; Human impact ; Hydrochemistry ; Hydrology ; Mountain ; Soil erosion ; Soil properties ; Trace-element ; United States ; Waterquality ; Watershed
, and to assess the influence of soil interstitial waters on stream waterquality.
The objective of this research is to study the physicochemical characteristics of major, minor and trace metals in soil interstitial and stream waters across an alpine watershed, with special emphasis on potentially geochemical reactive areas
Muddy waters: uncertainty issues in modelling the influence of bed sediments on water composition
Model ; Netherlands (The) ; Poland ; River bed ; Sediment load ; Stream ; Suspended load ; Waterquality ; Watershed
The primary aim of this study has been to quantify the role of bed sediments for the water composition or waterquality at the catchment scale of small flowing surface waters by means of spatial and dynamic modelling. The research areas were
De verwatering van meststoffen. Analyse en modellering van de relaties tussen landgebruik en waterkwaliteit in het stroomgebied van de Langbroeker Wetering. Nutrient content and the quality of groundwater and surface water. The relation between land
use and waterquality in the catchment of the Langbroeker Wetering
The main object of this study is to outline the possibilities to control the waterquality through changes of the land use pattern. For this purpose the quantitative and qualitative aspects of groundwater and the surface water in the catchment area
Non-conventional water for irrigation during drought in Bulgaria
Water resources of Bulgaria
Applied hydrology ; Bulgaria ; Crop ; Drainage ; Drought ; Health ; Irrigation ; Polluted water ; Pollution ; Risk ; Sea water ; Soil ; Water ; Waterquality ; Water resources
systems. However, using non-conventional qualitywater presents a number of ecological and health risks and poses problems connected with soil and surface and groundwater contaminated and with producing crops of acceptable quality. This paper reviews
Under the drought conditions that have occurred in Bulgaria during the last decade, agricultural use of non-conventional water may be an important resource. This is a specific case of simultaneous purification and utilisation by soil ecological
the work of the AA. in assessing the irrigation potentials of waste water in Bulgaria.