Within a week of 21-day long lockdown in India that started at midnight on March 24, 2020, several reports in print, electronic and social media have been doing rounds showing remarkable improvements in water quality in many rivers in the country. Most of these are on the basis of naked eye observations in the form of pictures and videos by people.
Some of the reports quote pollution control boards’ officials and experts with some analytical data. People generally believe that the shutting down of industrial units has led to reduction in discharge of industrial effluents in the rivers, breathing fresh life in pollution laden streams. It’s right that there is halt in industrial belts and there is less industrial pollution reaching the rivers. However there are other factors contributing to the change in the scenario.