Evaluation of Status of Surface Water Resources According to Quality
Setting environmental objectives is an important step in the river basin planning process. Environmental objectives are the desired future conditions of water quality and water quantity expected for each distinct water body. These objectives (also called targets) are set in order to measure the progress of improvement in water resources during a river basin planning period, usually a number of years. Environmental objectives are quantitative and can be measured by monitoring. They often reflect water quality standards but are more specific than standards, and can vary from one class, or category, of water to another. Modem river basin plans, such as those required by the European Union Water Framework Directive, require water bodies to meet biological, chemical/physical and hydrologic objectives, which in combination, reflect a desired good water status. In this article the focus is primarily on chemical/physical and hydrologic objectives, because Armenia has limited data available on biological conditions. In the future, with more research on Armenia s aquatic biology, biological objectives can and should be incorporated into this system. However, for setting environmental objectives for water resources the issues raised on methodology of evaluation of the current ecological status of water bodies in such way that it would be possible to compare water quality parameters of different water resources. The purpose of this article is to describe in detail the application of the method for evaluation of surface water resources of Armenia according to physical-chemical quality. The proposed method provides an opportunity to present large volume measurements of various water quality indicators by index values. These index values mathematically combine all the water quality measurements and provide for a simple description of water quality. Taking into consideration the analysis of various methods for classification of surface water resources, including their advantages and disadvantages, as well as existing monitoring information in Armenia, it is suggested to use the Water Quality Canadian Index for classification of surface water quality in Armenia. This will provide for obtaining description of water status (excellent, good, moderate, poor, very poor).
environmental objectives ecological status of water Water Quality Canadian Indez
A. Markosyan G. Nazaryan A. Margaryan
The Department of State Property Management under Government of Armenia PA Government Services Inc. , Armenia Doctor of Economics State Committee of Water Economy by Ministry of Territorial Administration of Armenia
国际会议
郑州
英文
921-925
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）