Description:
During August 1972, 15 vegetation plots monitered for foliar fluoride
concentrations in 1971 were resampled near the Anaconda aluminum plant
at Columbia Falls, Montana. Statistical analysis of the data showed
that essentially the same amount of fluoride was taken in by conifers,
shrubs, and grasses in 1972 as in 1971. It is concluded that the area
over which plants accumulated fluoride and resultant damage occurred
remained unchanged from 1971 at 179,000 acres and 15,000 acres,
respectively. Vegetation in Glacier National Park continued to show
some fluoride injury and to accumulate abnormally high amounts of
fluoride.