Safe limit of water fluoride level is

Options

A. `0.1 xx 0.4 mg//litre`
B. `0.5 xx 0.8 mg//litre`
C. `0.9 xx 1.2 mg//litre`
D. `1.3 xx 1.6 mg//litre`

Answer

**Step-by-Step Solution:**

1. **Understanding Fluoride**: Fluoride is a naturally occurring mineral found in soil, water, and rocks. It is known for its role in dental health, as it helps strengthen tooth enamel.

2. **Fluoride and Dental Health**: While fluoride is beneficial in small amounts, excessive fluoride can lead to dental problems. The condition known as fluorosis occurs when there is too much fluoride, leading to yellow patches and decay in teeth.

3. **Safe Limit of Fluoride**: The safe limit of fluoride in drinking water is critical for preventing fluorosis and ensuring dental health.

4. **Identifying the Correct Range**: The acceptable range of fluoride concentration in drinking water is generally considered to be between 0.5 to 1.0 mg/L (milligrams per liter).

5. **Conclusion**: Therefore, the safe limit of fluoride in water is between 0.5 to 1.0 mg/L.

**Final Answer**: The safe limit of water fluoride level is between 0.5 to 1.0 mg/L.

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