Assessment of Seasonal Variation in Water Quality and Water Quality Index (WQI) of Hebbal Lake, Bangalore, India

http://wgbis.ces.iisc.ernet.in/energy/
T. V. Ramachandra       Sudarshan P       Mahesh M. K

Energy & Wetlands Research Group, CES TE 15, Center for Ecological Sciences , New Bioscience Building, Indian Institute of Science, Bangalore 560 012, India
Corresponding author: T.V. Ramachandra
E-mail: emram.ces@courses.iisc.ac.in, tvr@iisc.ac.in, energy@ces.iisc.ernet.in.

Citation: Sudarshan P., Mahesh M K., Ramachandra T V, 2019. Assessment of seasonal variation in water quality and water quality index (WQI) of Hebbal Lake, Bangalore, India. Environment and Ecology, 37(1B): 309-317 ref.28, https://drive.google.com/file/d/1gUWx1AeiTL-CdNPW9ugNCSc4Acl5kALo/view

Conclusion

Seasonal variation in various physico-chemical parameters of Hebbal Lake was studied and water quality index was computed. The season wise variations in the WQI values were examined based on seasonal water quality analysis data of 4 sampling sites. TDS, EC, BOD were above permissible limits as per BIS in all 4 sites. Alkalinity was higher than permissible limits at S1. In inlet (S1) high amount of organic and other ionic contents were observed than other sampling sites. Overall water quality index showed that S1 and S2 was under unsuitable category, S3 very poor and S4 under poor category during study period. Based on this study it can be concluded that effective measures are urgently required to prevent entry of contaminated water and improve the overall water quality of the lake.

 

 

 
*Corresponding Author :
Ramachandra T.V., Sudarshan P,
Energy and Wetlands Research Group,
Center for Ecological Sciences Indian Institute of Science,
Bangalore 560012, India
e-mail:emram.ces@courses.iisc.ac.in, tvr@iisc.ac.in , bhat.sudarshanp@gmail.com
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