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Professor Paul Poku Sampene Ossei has voiced concerns regarding the EPA's use of ionic nano-copper technology for water treatment in the Birim River, stating it may pose health risks. The pilot project launched on February 24 aims to combat pollution from illegal mining but may not effectively remove heavy metals.

The EPA estimates treatment costs at $200,000 per kilometer. Ossei emphasizes that while copper is essential in small amounts, its accumulation can lead to severe health complications.