Utilization of the water quality index method as a classification tool

Boyacioglu H.

ENVIRONMENTAL MONITORING AND ASSESSMENT, vol.167, no.1-4, pp.115-124, 2010 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 167 Issue: 1-4
  • Publication Date: 2010
  • Doi Number: 10.1007/s10661-009-1035-1
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.115-124
  • Keywords: Kucuk Menderes Basin, Canadian Council of Ministers of the Environment (CCME) Water Quality Index, 75/440/EEC, Turkish Water Pollution Control Regulation, RIVER
  • Dokuz Eylül University Affiliated: Yes


The study comprised modification of the Canadian Council of Ministers of the Environment (CCME) Water Quality Index (CCMEWQI) to obtain a tool in classification of surface waters according to quality defined by the European Legislation-75/440/EEC. Three categories were proposed, and the category ranges of CCMEWQI have been modified depending on the objective chosen. The application of the CCMEWQI with modified categorization scheme was demonstrated to assess overall water quality by integrating observed water quality determinants in the Kucuk Menderes Basin, Turkey. In this scope, the samples analyzed for pH, total dissolved solids (TDS), chlorides (Cl), nitrate-nitrogen (NO(3)-N), dissolved oxygen (DO), biochemical oxygen demand (BOD(5)), sulfate (SO(4)), and boron (B), variables taken monthly over 2 years from the five monitoring sites, were processed. Results revealed that the overall surface water mainly fell within the A2 water class. The CCMEWQI with modified categorization scheme is believed to assist water managers to integrate and interpret the picture of overall water quality based on the European legislation concerning the quality required of surface water intended for the abstraction of drinking water in the Member States (75/440/EEC).