Some Effects of Fluorine on Peach, Tomato, and Buckwheat When Absorbed Through the Roots

Fluoride sorption and mineral stability in an Alberta soil interacting with phosphogypsum leachate

“…Some crop plants have reduced yields when the F content in their leaves surpasses a given value specific to each species (Leone et al 1948;Singh et al-1979). Fluoride industnal air pollution causes leaf buming even at low concentrations (Hansen et al 1958), and ingestion by vertebrates of high concentrations of F in plant foliage may result Phosphogypsum is an acidic, gypsum-based by-product of wet process phosphoric acid production from phosphate rock (Becker 1989).…”

Atmospheric Fluoride: Its Uptake and Distribution in Tomato and Corn Plants.

“…There now exists a fairly extensive bibliography concerning sources of fluorine contamination, injury patterns on plant foliage, and species sensitivity to fluorine compounds (1, 2, 3, 5,6,7,8,9,10,13). This paper deals with experiments designed to trace the fate of fluoride in growing plants as a result of exposure to a constant total amount of hydrogen fluoride gas administered at various time-concentration levels.…”

Geochemistry of Ground Water with Special Emphasis on Fluoride and its Seasonal Variations in Parts of Nalgonda District, Telangana State, India

“…Safe limit of 10 mg fluoride L -1 irrigation water has been proposed for all type of crop plants by Leone et al, (1948). All the samples were to be well within permissible limits.…”