Contamination of citrus foliage by fluorine from air pollution in major California citrus areas

Journal Article · Fri Jan 01 04:00:00 EST 1954 · Proc. Am. Soc. Hortic. Sci.; (United States)

OSTI ID:6759180

Kaudy, J C; Bingham, F T; McColloch, R C; Liebig, G F; Vanselow, A P

Leaves from approximately 130 citrus groves, representing citrus both in areas far removed from air pollution and in areas where air pollution occurs, were sampled for fluorine. Citrus leaves collected in the Coachella Valley of Riverside County, and in San Diego, Ventura, and Tulare counties disclosed concentrations of 1 ppM F or less. Leaves collected in industrialized areas disclosed values up to 211 ppM F. The greatest fluorine accumulation was evident in leaves from the San Bernardino Valley, San Bernardino County, especially from the vicinity of Fontana, where a steel plant is located. Elevated fluorine values were not associated with any visible damage to the trees. Sampling of leaves of 12 groves over a 9-month period disclosed a maximum accumulation of fluorine during the summer and fall months. Foliar concentrations of fluorine increased very little once the winter rains began.

• Research Organization: Univ. of California, Riverside
• OSTI ID: 6759180
• Journal Information: Proc. Am. Soc. Hortic. Sci.; (United States), Journal Name: Proc. Am. Soc. Hortic. Sci.; (United States) Vol. 65; ISSN PASHA
• 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
AIR POLLUTION
BUILDUP
CITRUS
ELEMENTS
ENVIRONMENTAL TRANSPORT
FLUORINE
FRUIT TREES
HALOGENS
LEAVES
MASS TRANSFER
NONMETALS
PLANTS
POLLUTION
TREES