The National Green Tribunal has expressed dissatisfaction over the inordinate delay in taking remedial measures against the pollution of Edappally and Perandoor canals owing to unauthorised discharge of sewage into the waterbodies. The Southern Bench had taken suo motu notice of the report titled ‘Faecal contamination high in Perandoor, Edappally canals’ published in The Hindu on January 28, 2021. The …