@article{Venkatesharaju_Ravikumar_Somashekar_Prakash_2010, title={Physico-Chemical and Bacteriological Investigation on the River Cauvery of Kollegal Stretch in Karnataka}, volume={6}, url={https://www.nepjol.info/index.php/KUSET/article/view/3310}, DOI={10.3126/kuset.v6i1.3310}, abstractNote={<p>Cauvery River is the major river system of south India was studied for 19 prime physicochemical<br />and 2 bacteriological parameters at six locations of the Kollegal stretch, for a period<br />of Two years (2006–2008) at monthly intervals. Over the years of time, river has been<br />subjected to human interference regularly and water quality was to be getting deteriorated<br />profoundly. Major anthropogenic activities practiced in and around the stretch: agriculture,<br />abstraction of water for irrigation and drinking, washing cloths and utensils, discharging of<br />sewage waste, sand dredging, boating, fishing, open defecation and religious ritual activities<br />along the stretch were generating serious threat to the biota of the river by altering the<br />physicochemical and biological concentration of the river system. The seasonal and yearly<br />trends were discussed to comprehend anthropogenic interferences on the river stretch.<br />Correlation analysis was also been tried in between physico-chemical parameters. The pH,<br />Conductance, Alkalinity and Hardness levels indicate the moderate quality of water. The<br />values of DO, BOD and COD levels indicate the absence of major organic pollution sources.<br />Seasonal and yearly averages of plant nutrients like phosphate, nitrates, potassium and also<br />sulphates at drain out falls and mixing zones, were not showing any significant variation in<br />their concentration indicate no sign of problems like eutrophication, which is generally raise<br />due to agricultural and sewage wastes. The other possibility is that since there are no major<br />industries in the project area, the major source of organic pollutants is only the domestic<br />source. Population density spread over sparsely located villages like Dasanapura and Harle<br />certainly contributes towards total and fecal coliforms as excreta of the villagers due to lack<br />of toilets in their houses. Thus present study concludes that river water was not polluted; all<br />results are within permissible limit when compared with Bureau of Indian Standards (BIS)<br />and National River water quality standards.</p><p>DOI: 10.3126/kuset.v6i1.3310</p><p><em>Kathmandu University Journal of Science, Engineering and Technology </em>Vol.6(1) 2010, pp50-59</p>}, number={1}, journal={Kathmandu University Journal of Science, Engineering and Technology}, author={Venkatesharaju, K and Ravikumar, P and Somashekar, RK and Prakash, KL}, year={2010}, month={Jun.}, pages={50–59} }