A comparison of surface water quality sampling program using Water Framework Directive in Iran

When river water quality fluctuates over relatively long periods with respect to the sampling frequency, the collection of samples may be inappropriate for characterizing average water quality. This paper presents the results of a water quality monitoring study carried out on the stretch of the river Siminehroud (western north of Iran) dominated by periodically used for agricultural works near it. Water Framework Directive (WFD) is also known as the EU directive 2000/60/EC identifies processes for developing and safeguarding the territory through surface water quality trend analysis non-parametric tests characterization. The aim of this study is to describe using relevant examples, the implementation of WFD in Iran, with a discussion of a case study, as well as the role of sampling frequency to river water quality. The results obtained have allowed a definition of the chemical and physical water quality of the Siminehroud River located in western north Iran as well as its classification according to the main WFD outlines. Sampling frequency studies and non-parametric tests have also been proposed as possible water quality management tools for the application of the EU directive.

Keywords:

water quality index , sampling , trend analysis , water framework directive