Fluoride Accumulation by Forage: Continuous vs. Intermittent Exposures to Hydrogen Fluoride1
- D. C. MacLean and
- R. E. Schneider2
The pattern of fumigation with gaseous HF markedly affects the rate and amount of F accumulated by timothy (Phleum pratense L.) and red clover (Trifolium pratense L.) plants. F accumulation was greater after continuous fumigations than when the same HF dose was provided in alternate 48-hour exposures. The importance of the intermittent nature of exposures in addition to the pollutant concentration and duration of exposure in governing F accumulation suggests that pollution abatement action to protect livestock from ingested F should be based on the F content of forage rather than the concentration of airborne fluorides.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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