Table 3.

Surface water quality enhancements around the world during the lockdown

Country	Water resources	Major reasons for pollution reduction	References
Ecuador	Salinas Beach	Tourist reduction	Zambrano-Monserrate et al. (2020)
India	Vembanad Lake	Tourism reduction, Reduction in industrial effluents	Yunus et al. (2020)
	River Cauvery	Tourist reduction, Less human activity	DeccanHerald (2020)
	Ganga River	Reduction in industrial effluents, Reduction in water lifting by industries, Tourist reduction	Singhal and Matto (2020)
	Yamuna River	Reduction in industrial effluents, Reduction in water lifting by industries	Paital et al. (2020)
Italy	Venice’s Canals	Boat traffic reduction, Tourist reduction	Zambrano-Monserrate et al. (2020)
Mexico	Acapulco Beach	Tourist reduction	Zambrano-Monserrate et al. (2020)
Peru	Rimac River	Reduction in dumping garbage, construction materials or waste from businesses and industrial sectors	Newsweek (2020)
Spain	Barcelona Beach	Tourist reduction	Zambrano-Monserrate et al. (2020)

Water resources (e.g., beach and lake) in different countries, including, Ecuador, India, Italy, Mexico, Peru, and Spain and major causes (e.g., tourist reduction and less human activities) of these improvements are listed separately. Based on on-site observation and remote sensing analysis, the water in the canals looks clearer due to the limited movement of boats, fewer tourists, etc., as the spread of the coronavirus and stay at home orders