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Scholars Journal of Engineering and Technology | Volume-1 | Issue-04
Assessment of water quality of river Yamuna in Yamunanagar, India with reference to planktons and macrozoobenthos
Bhatnagar Anita, Chopra Girish, Malhotra Priyanka
Published: April 22, 2013 |
108
112
DOI: 10.36347/sjet
Pages: 204-213
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Abstract
This paper presents an assessment of water quality of the river Yamuna, when it meanders along the city
Yamunanagar, India and is subjected to sewage and industrial pollution. The analysis of various pollution parameters
showed an increase when the sewage and industrial channel joined the river. Changes in the biotic communities:
phytoplankton, zooplankton and macrozoobenthos have been explained numerically in terms of abundance and diversity
index. Phytoplanktons, zooplanktons, as well as macrozoobenthos showed a decrease in population and diversity values
with an increase in pollution, along with a correlation with physico-chemical aspects. Navicula, Cocconeis, Closterium,
Micrasterias, Dactylococcus and Oscillatoria were the common phytoplankton taxa, Keratella and Brachionus were
common zooplanktons and Tubifex was the common benthic organism with a wide range of tolerance to different
physico-chemical conditions. The extent of pollution by certain heavy metals such as Cu, Zn, Ni, Co, Cd and Pb has also
been studied.