Why is COD preferred over BOD ?

Explanation

**Step-by-Step Solution:**

1. **Definition of COD and BOD:**
- COD stands for Chemical Oxygen Demand, while BOD stands for Biological Oxygen Demand. These are two important parameters used to assess the quality of water, particularly in wastewater treatment.

2. **Understanding BOD:**
- BOD measures the amount of oxygen required by aerobic microorganisms to decompose organic matter in water. It specifically focuses on the biological aspect of decomposition and is an indicator of the organic pollution level in water.

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