The relative response of seven different Water Quality Indices (WQIs) was comparatively tested in an artificial Mediterranean lake, with the ultimate goal of the study to function as a first step in investigating the applicability of the examined WQIs in Mediterranean lacustrine water bodies. The following WQIs were examined: Prati's Index of Pollution, Bhargava's Index, Oregon WQI, Dinius' Second Index, Weighted Arithmetic Index, Canadian Council of Ministers of the Environment (CCME) WQI and National Sanitation Foundation (NSF) WQI, using physicochemical parameters measured in an artificial lake on a monthly basis from June 2004 to May 2005. The results showed that, on the basis of their comparative response, the examined indices are grouped in three categories. Specifically, NSF and Bhargava indices classified the examined water body in higher quality classes, Prati's and Dinius in medium, whereas CCME and Oregon categorized it in lower quality classes. WQIs were proved to be extremely useful in water quality evaluation. Most of them were found to be adequate to represent water quality conditions and trends in a lacustrine water body in the Mediterranean and, therefore, they present high potential to be adopted at European Union level and assist in Water Framework Directive (WFD) implementation.

中文翻译：

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基于不同水质指数（WQI）方法的地中海湖泊水体水质评估。

在人造地中海湖中对七个不同水质指标（WQI）的相对响应进行了相对测试，研究的最终目的是研究被调查WQI在地中海湖水体中的适用性的第一步。检查了以下WQI：污染的Prati指数，Bhargava指数，俄勒冈州WQI，Dinius第二指数，加权算术指数，加拿大环境部长理事会（CCME）WQI和国家卫生基金会（NSF）WQI，使用测得的理化参数从2004年6月至2005年5月，每月在一个人工湖中进行调查。结果表明，根据它们的比较响应，所检查的指标分为三类。特别，NSF和Bhargava指数将检查的水体归为较高质量等级，Prati's和Dinius为中等，而CCME和俄勒冈州则将其归为较低质量。WQI被证明在水质评估中非常有用。发现它们中的大多数足以代表地中海湖水水体的水质状况和趋势，因此，它们具有在欧盟一级采用并协助实施水框架指令（WFD）的巨大潜力。