New perspectives in the use of deciduous teeth as indicators for environmental exposure
- Univ. of Illinois, Chicago (USA)
This study differs from previous ones, in that deciduous teeth were collected from the same group of children at the time of shedding. Demographic data includes urban and suburban movements, while keeping other variables such as diet the same. Deciduous teeth from four children in one family were collected over 14 years. Teeth were rinsed with milli-Q water and air dried after removal of any fillings. Each tooth was weighed, crushed and powdered in an agate mortar. The powder was ashed in a low temperature plasma asher. An aliquot of ash was dissolved in metal-free 35% nitric acid and the solution diluted to 0.35% HNO{sub 3}. Trace metal analysis for cadmium (Cd), lead (Pb) and copper (Cu) was determined in each sample using Perkin-Elmer Model 5000 atomic absorption spectrophotometer equipped with an HGA-500 graphite furnace. In all samples Pb shows linear increase with urban living, types of tooth, and age of tooth, while Cd and Cu were increased by urban living and status of health of individual such as allergy.
- OSTI ID:
- 7266254
- Report Number(s):
- CONF-8909236-; CODEN: ACWCA
- Journal Information:
- Preprints of Papers Presented at National Meeting, Division of Water, Air and Waste Chemistry, American Chemical Society; (USA), Vol. 28:2; Conference: JAERI/EPA workshop on residual radiation and recycle criteria, St. Michaels, MD (USA), 27-28 Sep 1989; ISSN 0099-7293
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
CADMIUM
BIOLOGICAL ACCUMULATION
COPPER
LEAD
POLLUTION
BIOLOGICAL INDICATORS
TEETH
CHEMICAL COMPOSITION
ABSORPTION SPECTRA
CHILDREN
TRACE AMOUNTS
URBAN AREAS
AGE GROUPS
DIGESTIVE SYSTEM
ELEMENTS
METALS
ORAL CAVITY
SPECTRA
TRANSITION ELEMENTS
560300* - Chemicals Metabolism & Toxicology
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
540220 - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)
540320 - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)