Document Type : ORIGINAL RESEARCH PAPER

Authors

Civil Engineering Department, Vadodara Institute of Engineering, Kotambi, Vadodara, India

Abstract

Environmental flow requirements, to maintain the functioning of freshwater-dependent ecosystems and restore rivers in ecologically acceptable conditions, depend upon the present water quality status of the river. Various stretches of Vishwamitri River vary in quality and quantity. Water quality index is a tool to converse information regarding water quality of various stretches of river and can be used for zoning them based on their present water quality status. Through such zoning, based on water quality index values as an integral component, Environmental flow requirements can be explored for Vishwamitri. In this paper, ‘Weighted Arithmetic Index’ method is used to find water quality index for both Vishwamitri and its tributaries using observed values of general physico-chemical parameters. The indices have been computed for pre-monsoon, monsoon and post-monsoon seasons at sixteen sampling stations, i.e. S-1 to S-16 along the Vishwamitri and eight sampling stations on its various tributaries. Based on the analysis, Vishwamitri is zoned in two various zones. Sampling stations, S-1 to S-7 represent Zone 1 which contains WQI values from 50 to 75. Sampling stations S-8 to S-16 represent zone 2 which contain WQI values more than 75. Zone 1 is rich with DO whereas zone 2 contains high BOD and less DO. The WQI value of Surya River, a major tributary of Vishwamitri, indicates that river water is suitable for irrigation purpose. The WQI values of tributaries and drains, draining wastewater to stretch of Vishwamitri within Vadodara city, represents water quality as mostly unsuitable for drinking, irrigation or industrial purpose.

Highlights

This paper focuses on determination of water quality status of Vishwamitri and its tributaries for zoning the river based on Water Quality Status. For the same, Water Quality Index scores at various locations along the Vishwamitri and on its various tributaries are analyzed. The assessment of release of excess runoff in terms of environmental flow may vary based on water quality status of respective zone.

Keywords

Main Subjects


LETTERS TO EDITOR

International Journal of Human Capital in Urban Management (IJHCUM) welcomes letters to the editor for the post-publication discussions and corrections which allows debate post publication on its site, through the Letters to Editor. Letters pertaining to manuscript published in IJHCUM should be sent to the editorial office of IJHCUM within three months of either online publication or before printed publication, except for critiques of original research. Following points are to be considering before sending the letters (comments) to the editor.


[1] Letters that include statements of statistics, facts, research, or theories should include appropriate references, although more than three are discouraged.

[2] Letters that are personal attacks on an author rather than thoughtful criticism of the author’s ideas will not be considered for publication.

[3] Letters can be no more than 300 words in length.

[4] Letter writers should include a statement at the beginning of the letter stating that it is being submitted either for publication or not.

[5] Anonymous letters will not be considered.

[6] Letter writers must include their city and state of residence or work.

[7] Letters will be edited for clarity and length.

CAPTCHA Image