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Permissible Limit of Fluoride in Drinking Water
Fluoride is a naturally occurring mineral that is found in varying amounts in water sources. While fluoride is beneficial in preventing tooth decay, excessive intake can lead to fluorosis, a condition that affects teeth and bones. Therefore, it is essential to establish a maximum permissible limit for fluoride in drinking water.

Maximum Permissible Limit
The maximum permissible limit for fluoride in drinking water is 1.5 mg/l. This limit is set by regulatory bodies to ensure that the level of fluoride in water is safe for consumption.

Rationale for the Limit
- The limit of 1.5 mg/l is based on extensive research and studies that have identified this concentration as safe for human consumption.
- Exceeding this limit can lead to dental and skeletal fluorosis, which can have adverse effects on health.
- Regular monitoring of fluoride levels in drinking water is necessary to ensure that the permissible limit is not exceeded.

Regulatory Compliance
- Water treatment facilities and municipalities are responsible for monitoring and maintaining fluoride levels in drinking water.
- Regular testing and analysis of water samples are conducted to ensure compliance with the permissible limit.
- In cases where fluoride levels exceed the limit, appropriate measures are taken to reduce the concentration to safe levels.

Conclusion
It is crucial to adhere to the maximum permissible limit for fluoride in drinking water to safeguard public health. By maintaining fluoride levels within the established limit, we can ensure that water remains safe for consumption and helps prevent dental and skeletal fluorosis.

B 1.5mg/l