TNPSC Thervupettagam

Heavy Metal Contamination in the Cauvery River

November 9 , 2025 17 hrs 0 min 1 0
  • Heavy metals were detected in fish and sediments from the Cauvery River.
  • The study was conducted between August 2023 and February 2024.
  • It found high levels of cadmium and lead exceeding safety thresholds in several fish species.
  • The research covered 18 sediment sites and 10 fish sampling sites along the river.
  • Industrial effluents, agricultural runoff, and urban wastewater were identified as major sources of contamination.
  • The study warned that regular fish consumption from the river could cause health risks due to heavy metal accumulation.

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