Status of trace and toxic metals in Indian rivers
Metal contamination in river water is increasingly becoming common in India. Presence of metals in river water in excesses may cause a significant threat to human health and ecological systems. The present report attempts to provide the water quality scenario of Indian rivers in respect of trace and toxic metals. Based on the analysis results of various metal elements, first, second and third edition of the Status of Trace and Toxic Metals in Indian Rivers was published by River Data Directorate, CWC, in May, 2014, April, 2018 and August, 2019 respectively. The revised and comprehensive edition of this report comprising the data of eight elements viz; Arsenic, Cadmium, Chromium, Copper, Iron, Lead, Nickel and Zinc for the period from Aug, 2018 to Dec, 2020. The report brings out the identified locations having these metal concentrations beyond the exceeding limits according to the BIS 10500:2012.