Question

Permissible limit of total chromium discharge as Cr in treated effluent is

• A. 1 ppm
• B. 2 ppm
• C. 3 ppm
• D. 4 ppm

Hint:

Chromium discharge limits in effluents are crucial for protecting aquatic ecosystems. Always ensure that treated effluents meet the regulatory standards for safe chromium levels.

Answer 1

The Correct Option is B

The permissible limit of chromium discharge in treated effluent is regulated to protect water quality and public health. Chromium, particularly hexavalent chromium, is highly toxic and can cause severe environmental damage. Therefore, environmental regulations set the acceptable discharge level for chromium at 2 ppm to minimize contamination. Step 1: Regulatory Limits for Chromium
- Regulatory bodies set limits on chromium discharge to protect aquatic ecosystems and prevent harm to organisms living in the water.
- The typical permissible limit for chromium discharge is set at 2 ppm, which is considered safe for effluents that have been treated to reduce chromium content.

Step 2: Conclusion
Thus, the correct permissible limit for chromium discharge in treated effluent is 2 ppm (Option B).