Page 36 - e-Book

S.No. Researchers Outcome of the study

1. Arif, Kumar Yamuna river in Delhi during lockdown period due to Corona
& Parveen pandemic showed a very striking revival.

(2020)

2. Chakraborty In comparison to the level of dissolved oxygen of the last thirty
et al, (2020) years (1984-2019) lower Gangetic delta region showed a significant

increase in the dissolved oxygen (DO) during COVID-19 lockdown.
3. Dhar et al. In 6 sites along Ganga River dissolved oxygen (DO) decreased

(2020) which improved the water quality during COVID-19 lockdown

period providing amiable environment for aquatic biodiversity to
thrive.

4. Dutta, Dubey Ganga River re-energized due to negligible discharge of industrial
& Kumar waste and agricultural runoff which increased dissolved oxygen

(2020) (DO) due to nationwide lockdown in India.

5. Garg, Through Sentinel-2 multispectral remote sensing it was found that
Aggarwal & the turbidity at Varanasi, Haridwar, Prayagraj and Kanpur in the

Chauhan Ganga river reduced drastically during country-wide lockdown
(2020) improving the quality of water.

6. Lokhandwala Lockdown in India improved the quality of air, environment and

& Gautam water showing a positive sign towards restoration.
(2020)

7. Selvam et al. 22 groundwater samples from the coastal industrial city of Tuticorin
(2020) in Southern India taken during the lockdown (19 and 20th April

2020) found significant reductions in metals due to decrease in

waste water discharge from thermal power plants, metal-based
industries and seafood-based industries and concluded that by

seizing of anthropogenic activities ground water can quickly revive.

8. Chakraborty Improvement in the quality of water of River Damodar was
et al. (2021) statistically found during the lockdown period due to Coronavirus.

Thus, the researchers throughout the world have indicated a positive impact of lockdowns
imposed due to coronavirus on the quality of water enhancing the aquatic life to its fullest.

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