Availability of cadmium to rats from crops grown on cadmium-enriched soil

Technical Report · Wed Jul 01 00:00:00 EDT 1987

OSTI ID:6129331

Buhler, D R; Tinsley, I J

The research was initiated to enhance understanding of the availability to animals of Cd present in edible plants. Such information is of considerable importance since agricultural crops can accumulate high concentrations of the metal when grown in certain soils or with sewage sludge as a fertilizer. Edible plants were labeled with /sup 109/Cd by growing them on /sup 109/CdCl/sup 2/ treated soil. The availability of /sup 109/Cd to male and female rats was then determined by feeding semisynthetic diets containing either freeze-dried radioactive spinach, lettuce, soybean, carrots, tomatoes, or wheat flour, or comparable nonradioactive plant powders spiked with /sup 109/CdCl/sup 2/. Retention of /sup 109/Cd by liver and kidney was determined after a 14-day feeding period. With the exception of spinach, Cd accumulation by rats was not found to be significantly influenced by the form of Cd in the diet whether supplied as plant-bound /sup 109/Cd or added to nonradioactive diets as /sup 109/CdCl/sup 2/. The mean retention of Cd in liver and kidney was 0.17% of the dose consumed for males and 0.26% for females consuming diets containing wheat, soybean, carrots, lettuce, or tomatoes.

• Research Organization: Oregon State Univ., Corvallis (USA)
• OSTI ID: 6129331
• Report Number(s): PB-87-212353/XAB
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
CADMIUM
ENVIRONMENTAL EXPOSURE PATHWAY
SEWAGE SLUDGE
SOILS
LABORATORY ANIMALS
METALS
RATS
ANIMALS
ELEMENTS
MAMMALS
RODENTS
SEWAGE
SLUDGES
VERTEBRATES
WASTES
510200* - Environment
Terrestrial- Chemicals Monitoring & Transport- (-1989)
560300 - Chemicals Metabolism & Toxicology