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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/8956
Title: Estimation of water pollution and probability of health risk due to imbalanced nutrients in River Ganga, India
Authors: Chaudhary M.
Mishra S.
Kumar A.
Published in: International Journal of River Basin Management
Abstract: The River Ganga is the largest, perennial and one of the sacred rivers in India. It supports the lifeline of major population in urban and rural areas existing in the river basin. The river is a chief source of water supply, power generation, river-borne transport and expansion of the urban industrial belt. However, the river receives huge amount of untreated wastewater which imbalances the nutrient concentration at many points along the stretch. Therefore, the present study is focused to estimate the water pollution using water quality indices, such as OPI, national sanitation foundation index (NSFWQI), comprehensive pollution index (CPI) and heavy metal pollution index (HPI), and identify the imbalance nutrients (i.e. NO3, PO4, heavy metals, etc.) in the river. Also, the probability of health risk that might occur by drinking the river water has been classified using risk assessment index (RAI). The water samples were collected in post- and pre-monsoon months in year 2014–2015, from nine sampling locations between Haridwar and Garhmukteshwar. The results indicate that the water quality of River Ganga is unsuitable for drinking during sampling months, because the average NSFWQI was found to be 53.44 and 43.56, while CPI was 2.71 and 2.82 in post- and pre-monsoon, respectively. The river water has been found to be severely contaminated due to heavy metals (i.e. HPI > 3) and indicates the human health risk (i.e. RAI > 1). Therefore, it has been suggested that the river water must be treated to balance the nutrient concentration before used for drinking. Further, by a comparative analysis of indices, NSFWQI and CPI have been found as the better suitable indices to classify the status of water quality. © 2016 International Association for Hydro-Environment Engineering and Research.
Citation: International Journal of River Basin Management (2017), 15(1): 53-60
URI: https://doi.org/10.1080/15715124.2016.1205078
http://repository.iitr.ac.in/handle/123456789/8956
Issue Date: 2017
Publisher: Taylor and Francis Ltd.
Keywords: CPI
HPI
NSFWQI
RAI
River Ganga
ISSN: 15715124
Author Scopus IDs: 57190226557
55353346500
57216775596
Author Affiliations: Chaudhary, M., Biomass and ecosystem lab, Alternate Hydro Energy Centre, Indian Institute of Technology Roorkee, Uttarakhand, India
Mishra, S., Biomass and ecosystem lab, Alternate Hydro Energy Centre, Indian Institute of Technology Roorkee, Uttarakhand, India
Kumar, A., Biomass and ecosystem lab, Alternate Hydro Energy Centre, Indian Institute of Technology Roorkee, Uttarakhand, India
Corresponding Author: Mishra, S.; Biomass and ecosystem lab, Alternate Hydro Energy Centre, Indian Institute of Technology RoorkeeIndia; email: saurabhmishra20057@gmail.com
Appears in Collections:Journal Publications [HRE]

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