The Vembanad lake has been highly contaminated with faecal waste as a recent international study has recorded E.coli contamination of alarming levels in the waterbody. However, during the lockdown period, there was 99.8% decrease in the average abundance of E. coli, said A. Abdulaziz of NIO, who was the lead author of the scientific paper ‘The distribution of faecal contamination …
