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Water quality assessment of the ecologically stressed Hooghly River Estuary, India: A multivariate approach

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Title Water quality assessment of the ecologically stressed Hooghly River Estuary, India: A multivariate approach
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Creator Soumita Mitra
Swayambhu Ghosh,
Kamala Kanta Satpathy,
Bhaskar Deb Bhattacharya,
Santosh Kumar Sarkar
Pravakar Mishra
P. Raja
 
Subject Fecal coliform Nutrients Multivariate analysis Anthropogenic inputs
 
Description Not Available
Spatio-temporal and seasonal variation of the water quality characteristics of the Hooghly River Estuary, India
were studied considering eight stations of diverse eco-hydrological characteristics. Wide variations in turbidity,
total dissolved solids and fecal coliform exceeded the permissible BIS drinking water level limit. The estuary is
observed to be relatively low-oxygenated, mesotropic and phosphate limiting. Spatial heterogeneity and impact
of the southwest monsoon were remarkably pronounced in the distribution of the inorganic nutrients revealing
the following values (expressed in μg atm l−1): nitrate+nitrite (2.42–37.19), phosphate (0.41–1.52) and silicate
(38.5–187.75). Water Quality Index (WQI) values confirmed the prevailing ‘bad’condition, detrimental for
sustenance of aquatic biota. Results of Principal Component Analysis identified the major factors liable for water
quality deterioration while cluster analysis categorized the stations on the basis of similar water quality status.
The authors recommend adopting preventive measures for water quality improvement linked to biodiversity
conservation.
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Date 2020-06-12T09:32:24Z
2020-06-12T09:32:24Z
2017-09-24
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/37114
 
Language English
 
Relation Not Available;
 
Publisher Not Available