River water fluoride in central and Nairobi provinces of Kenya

Abstract

No abstract.

Fluoride determinations were made with a fluoride ion selective electrode on 60 river water samples collected at readily accessible sites in Central and Nairobi provinces of Kenya. The highest fluoride concentration was 0.85 ppm in Laikipia District and the lowest was 0.08 ppm in Murang'a District. By region and district, the mean fluoride concentration ranged from 0.12 ppm for rivers in Laikipia to 0.24 ppm for rivers in Nairobi, with 0.32 ppm in the Upper Basin of the Athi River. The results indicate that the rivers are relatively low in fluoride and are therefore safe in this respect for domestic and industrial use.