Which metal ion released from tannery industry causes acute water pollution?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Cr.
Chromium (Cr) released from the tannery industry, primarily in its hexavalent form (Cr(VI)), is a severe water pollutant. Cr(VI) is highly toxic and mobile in aquatic environments. Discharged untreated, it contaminates water bodies, posing significant health risks to humans and aquatic life. Even low concentrations can cause skin irritation, respiratory problems, and long-term exposure is linked to cancer and organ damage, leading to acute water pollution and ecological imbalance.