Pre Topic:-Science & Tech, Bio-technology, Environment
Mains :-GS -III Technology, Economic Development, Bio-diversity, Environment, Security and Disaster Management
In News: Central Water Commission(CWC) has reported that samples from 2/3 of water quality station PAN INDIA's rivers
STATUS OF TRACE & TOXIC METALS IN INDIAN RIVERS
Heavy metals refer to any metallic chemical element that has a relatively HIGH DENSITY(>5g/cm3) and is toxic or poisonous at low concentration eg.mercury, cadmium, arsenic, chromium, thallium, lead(Minimata river- Japan)
Central Water Commission(CWC) has reported that samples from 2/3 of water quality station PAN INDIA's rivers contaminated by one or more heavy metals, exceeding safe limits set by the Bureau of Indian Standards.
Heavy Metals
- This report comprising the data of eight elements viz; Arsenic, Cadmium, Chromium, Copper, Iron, Lead, Nickel and Zinc for the period from May 2014 to April 2018 has been prepared.
Solutions to Tackle Heavy Meatals in waters
IIT Mandi has developed a new method foe efficient removal of heavy metals from water,
Adsorption(fibrous membrane filter using a biopolymer-based material) is highly efficient low-cost and ease of operation method
Study was funded by Ministry of Mines, Govt of India