Most abundant water pollutant is

Options

A. Detergents
B. Pesticides
C. Industrial wastes
D. Ammonia

Answer

**Step-by-Step Solution:**

1. **Understanding Water Pollutants**: Water pollutants are substances that contaminate water bodies, affecting their quality and the organisms living in them.

2. **Identifying Major Sources of Water Pollution**: The primary sources of water pollution include industrial effluents, agricultural runoff, sewage, and waste disposal. Among these, industrial effluents are often considered the most significant contributors.

3. **Analyzing Industrial Effluents**: Industrial effluents contain a variety of harmful substances. These can include heavy metals (like mercury and cadmium), organic solvents, oils, and other toxic chemicals.

4. **Impact of Industrial Effluents**: The presence of these pollutants has severe effects on aquatic life and the overall ecosystem. They can be corrosive, reactive, and lead to long-term environmental damage.

5. **Comparing Treatment Processes**: Treating industrial waste is generally more complex and costly compared to treating domestic sewage. This is due to the hazardous nature of the chemicals involved and the need for specialized treatment processes.

6. **Conclusion**: Given the above points, the most abundant water pollutant is industrial waste, particularly due to its diverse and toxic ingredients.

**Final Answer**: The most abundant water pollutant is industrial effluents.

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