Processes and the Resulting Water Quality in the Medium-Size Turawa Storage Reservoir after 60-Year Usage

Abstract

The characteristics of water in the Turawa reservoir, one of the important storage reservoirs in Poland, were thoroughly studied. The reservoir and also the rivers flowing into the reservoir were monitored in the period 2004-2006 with respect to the basic physico-chemical parameters determining the quality of water such as water temperature, specific conductance, pH, biochemical oxygen demand (BOD 5 ) and chemical oxygen demand (COD Mn ), water hardness, content of typical ions (sodium, potassium, sulphates, phosphates and chlorides), heavy metals, and so on. The observed seasonal and long-term changes of the parameters measured were discussed and the processes responsible for the changes suggested. The causes of the observed deterioration of the ecological status of the Turawa reservoir were given and the remedial operations proposed. The latter included improvement in the management of solid wastes and wastewater in the area, reducing the runoff of nutrients in the catchment, decrease in discharge of pollutants into the rivers flowing into the reservoir, removal of bottom sediments and also increasing the average water table and decreasing its fluctuations. The effect of the remedial operations will be further studied.

Evaluation of Water Quality in Ialomita River Basin in Relationship with Land Cover Patterns

“…At the same time, technologies and approaches are being developed that can be used to reduce the unfavorable consequences of the human impact on nature, and to establish measures to protect natural resources and use them more efficiently [12]. The continuing and improved success of these technologies and approaches depends on research to improve our understanding of processes and phenomena occurring in the hydrosphere [13].Efficient management of water resources and, implicitly, of the quality of the water must find coherent solutions for pollution control, water use, as well as for land use [14]. The monitoring of surface waters should be based on a programmed process to collect samples and measure and record water parameters that will allow quality standards and the objectives proposed for the medium and long terms to be met.…”

“…At the same time, technologies and approaches are being developed that can be used to reduce the unfavorable consequences of the human impact on nature, and to establish measures to protect natural resources and use them more efficiently [12]. The continuing and improved success of these technologies and approaches depends on research to improve our understanding of processes and phenomena occurring in the hydrosphere [13].…”

Multivariate Statistical Approach to Study Spatiotemporal Variations in Water Quality of aHimalayan Urban Fresh Water Lake

“…Higher levels of total nitrogen, ammonia nitrogen, and total phosphorous are of common concern because of their ability to cause nuisance algal growth [30]. Chlorides are harmful to freshwater vegetation, and its presence in water is responsible for increased rate of corrosion [31]. The presence of enormous biodegradable organic matter in water leads to consumption of DO by bacteria and consequently drops the DO levels below the threshold point.…”