• UGI USER
  • Jun 12, 2024
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HEAVY METAL CONTAMINANTS POSE HEALTH RISKS TO HUMANS AND ANIMALS

Why in the news?

  • Indian Institute of Science (IISc) develops methods for removing heavy metal contaminants from groundwater.
  • Collaboration with NGOs for field testing.

About the Indian Institute of Science (IISc):

  • The Indian Institute of Science (IISc) is a premier public research university in Bengaluru, Karnataka, India.
  • Established in 1909 with support from Jamsetji Tata.
  • Recognized for advanced scientific and technological research and education.
  • Offers programs in science, engineering, design, and management.
  • Granted deemed university status in 1958 and Institute of Eminence in 2018.
source:researchgate
What are Heavy metals?

  • Heavy metals have atomic numbers over 20 and atomic densities above 5 g cm^-3.
  • They exhibit metal-like properties.
  • Examples include arsenic, cadmium, chromium, copper, lead, manganese, mercury, nickel, and uranium.

About Heavy metal pollution:

  • Heavy metal pollution stems from agriculture, metal industries, improper waste management, fertilizer and pesticide use.
  • Agricultural runoff and industrial discharge are primary pathways for heavy metals to enter rivers.
  • Industrial wastewater, especially from sources like tanneries containing chromium, exacerbates heavy metal pollution in rivers.
  • Heavy metals persist in plants, animals, and the environment for extended periods.