New Delhi, Feb. 7 -- A team of scientists from the Indian Institute of Technology (IIT) Kanpur has found that Ganga river can get rid of the heavy metal pollution by a minimum of 50 per cent in a short time span of a few months if industrial wastewater discharge is cut down for 51 days.

In contrast, inputs from agricultural runoff and domestic sewage like nitrate and phosphate remained almost the same as these sources were not impacted by the nationwide confinement.

Based on these observation, they dismissed the general perception that the Covid-19 pandemic induced lockdown improved all water quality parameters of the Ganga river and instead asserted that the different pollutants should be considered individually.

Researchers in their ar...