Water Quality Indices As Investigatory Tools For The Aquatic Ecosystem Health In Reference To Ranjit Sagar Dam Reservoir, India

IJEP 41(10): 1141-1146 : Vol. 41 Issue. 10 (October 2021)

Kapil Paul and Anish Dua*

Guru Nanak Dev University, Aquatic Biology Laboratory, Department of Zoology, Amritsar-143 005, Punjab, India


Life on earth is chiefly dependent on water, hence the quality of water is a big concern for healthy life. Population explosion, urbanization and industrialization are affecting the water resources quite badly and it is important to assess this quality at regular intervals. The current study is focused on evaluation of water quality of the Ranjit Sagar dam reservoir using water quality index (WQI) and heavy metal pollution index (HPI) method. This provides a single numerical value from a diverse set of water quality parameters. Water quality index in the study period varied from 23.98-140.3 and heavy metal pollution index (HPI) varied between 212.99-822.33. The evaluation of variation among seasons and sites is interpreted by the application of one as well as two-way analysis of variance and paired t-test. The successful use of these indices for assessing ecosystem health is being proposed through the study.


Heavy metals, Ranjit Sagar, Water quality index, ANOVA, t-test


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