**7. Conclusion**

The present study reveals that the underground drinking water of the investigated area was contaminated with F. The population of the study area was therefore chronically exposed to higher levels of F from drinking water. There was a significantly positive correlation between the F content of groundwater and urine of the fluorosis-affected children in the study area. This suggested that a high level of endemic fluorosis is prevalent in the study area due to the consequence of a higher concentration of F in underground aquifers. The highest number of fluorosis-affected children (85.29%) was recorded from Datlavaripalem village. It can be concluded that the high F in groundwater leads to increased incidences of dental fluorosis among the surveyed people. Also this study indicates that urinary F is a good indicator of community exposure F. The study revealed that the F level in urine was higher than the accepted levels. It is also evident that other sources of dietary F intake other than drinking water contributed significantly to community overexposure to fluoride in the studied areas. This calls for urgent interventions to mitigate effects of excessive environmental fluoride in these areas

### **Acknowledgements**

The author wants to thank Dr.P.V. Nageswara Rao, Assistant Professor, Department of Geology, Acharya Nagarjuna University for his constant encouragement throughout this work.

*Fluoride Geochemistry and Health Hazards: A Case Study DOI: http://dx.doi.org/10.5772/intechopen.105156*
