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Polk and Hillsborough Counties, Florida

Journal Article · · Bull. At. Sci.; (United States)
Air pollution in the citrus growing area in Polk and Hillsborough Counties, Florida, is described. This area has one of the world's largest and richest phosphate deposits, and therefore a large phosphate industry grew in the area. It supplies over 75% of the nation's phosphate rock. Expanded food and fiber production in the area caused removeal of most of the phosphorus in the soil used for agriculture. Therefore fertilizers such as triple superphosphate were applied in the area. This resulted in increased fertilizer production at the phosphate plants, and thus, increased air pollution due to fluorides. Cattle in the area were affected by fluorosis, and citrus showed chlorosis due to the gaseous fluorides in the air. The air pollution was worse in the winter and early spring; these months also had the greatest occurrence of cattle and citrus damage. Due to combined governmental and industrial efforts, fluoride emissions were reduced from 33,000 pounds/day (winter of 1961-1962) to 13,000 lbs/day (winter of 1963-1964). Since 1959, air pollution control equipment costing $16 million has been added. A new, pollution-free plant costing $20 million replaced an old one. A new proposal is being considered to limit fluoride emissions further.
OSTI ID:
6545925
Journal Information:
Bull. At. Sci.; (United States), Journal Name: Bull. At. Sci.; (United States); ISSN BASIA
Country of Publication:
United States
Language:
English

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Related Subjects

560303 -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
560305* -- Chemicals Metabolism & Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
ANIMALS
BIOLOGICAL EFFECTS
CATTLE
COWS
DOMESTIC ANIMALS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
INJURIES
MAMMALS
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PLANTS
POLLUTION
PRODUCTION
RUMINANTS
TREES
VERTEBRATES