Fluorine levels in crops of The Dalles area, 1965-67: cherry, peach, and pine trees and the ambient air

Book · Mon Jan 01 04:00:00 EST 1968

OSTI ID:6356714

Compton, O C; Adams, F W; Mellenthin, W M; Elliott, S; Chestnut, N; Bonney, D W

The fluorine concentrations in leaves of peach and cherry trees grown in The Dalles fruit area in 1965 and 1966 and of sweet cherry trees only in 1967 are reported here. Maximum concentrations in sweet cherry leaves collected during September were 39.7, 47.5, and 42.5 ppm fluorine in 1965, 1966, and 1967, respectively. Leaf fluorine contents from locations beyond about three miles were similar to those taken prior to operation of the nearby aluminum factory. Pine needles collected within 1.8 miles of this factory contained from 24 to 104 ppm fluorine and showed varying amounts of needle scorch. The highest daily air fluorine concentrations in April were 3.31, 4.77, and 4.65 micrograms fluorine per cubin meter of air (..mu..g F/M/sup 3/) for 1965, 1966, and 1967, respectively, while maximum monthly averages for April were 0.72, 1.32, and 0.83 ..mu..g F/M/sup 3/ per day, respectively. Air fluorine decreased rapidly with distance up to about three miles from the factory, with little or no further decrease beyond that. Air and leaf fluorine were closely correlated in 1966 and 1967 even though environmental conditions varied widely from one location to another.

• OSTI ID: 6356714
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
510200 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560303 -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
BIOLOGICAL EFFECTS
CONTAMINATION
ELEMENTS
FLUORINE
FRUIT TREES
HALOGENS
MONITORING
NONMETALS
PLANTS
POLLUTION
TREES
UPTAKE