Fluorine levels in crops of The Dalles area, 1965-67

Fluorine -- Environmental aspects -- Oregon -- The Dalles. Aluminum industry and trade -- Environmental aspects -- Oregon -- The Dalles. Smelting -- Environmental aspects -- Oregon -- The Dalles. Cherry -- Effect of fluorides on -- Oregon -- The Dalles. Cherry -- Effect of pollution on -- Oregon -- The Dalles. Peach -- Effect of fluorides on -- Oregon -- The Dalles. Peach -- Effect of pollution on -- Oregon -- The Dalles. Pine -- Effect of fluorides on -- Oregon -- The Dalles. Pine -- Effect of pollution on -- Oregon -- The Dalles. Air -- Pollution -- Oregon -- The Dalles.