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Positive effects of COVID‑19 lockdown on river water quality: evidence from River Damodar, India

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Title Positive effects of COVID‑19 lockdown on river water quality: evidence from River Damodar, India
Not Available
 
Creator Baisakhi Chakraborty
Biswajit Bera
Partha Pratim Adhikary
Sumana Bhattacharjee, Sambhunath Roy, Soumik Saha, Anitabha Ghosh, Debashish Sengupta & Pravat Kumar Shit
 
Subject Positive effects of COVID‑19, river water quality, River Damodar
 
Description Research article
The global economic activities were completely stopped during COVID-19 lockdown and continuous lockdown partially brought some positive effects for the health of the total environment. The multiple industries, cities, towns and rural people are completely depending on large tropical river Damodar (India) but in the last few decades the quality of the river water is being significantly deteriorated. The present study attempts to investigate the river water quality (RWQ) particularly for pre- lockdown, lockdown and unlock period. We considered 20 variables per sample of RWQ data and it was analyzed using novel Modified Water Quality Index (MWQI), Trophic State Index (TSI), Heavy Metal Index (HMI) and Potential Ecological Risk Index (RI). Principal component analysis (PCA) and Pearson’s correlation (r) analysis are applied to determine the influencing variables and relationship among the river pollutants. The results show that during lockdown 54.54% samples were brought significantly positive changes applying MWQI. During lockdown, HMI ranged from 33.96 to 117.33 with 27.27% good water quality which shows the low ecological risk of aquatic ecosystem due to low mixing of toxic metals in the river water. Lockdown effects brought river water to oligotrophic/meso-eutrophic condition from eutrophic/hyper-eutrophic stage. Rejuvenation of river health during lockdown offers ample scope to policymakers, administrators and environmentalists for restoration of river health from huge
anthropogenic stress.
Not Available
 
Date 2024-02-23T11:21:26Z
2024-02-23T11:21:26Z
2021-10-11
 
Type Article
 
Identifier Not Available
ISSN 2045-2322 (Online)
http://krishi.icar.gov.in/jspui/handle/123456789/81516
 
Language English
 
Relation Not Available;
 
Publisher Nature Portfolio