Quantitative measurements of the inhalation, retention, and exhalation of dusts and fumes by man. II. Concentrations below 50 mg per cubic meter
Journal Article
·
· J. Ind. Hyg. Toxicol.; (United States)
OSTI ID:6288279
422 experiments on retention of calcium carbonate dust and MgO fume by 32 volunteers breathing in a dust chamber are discussed. MgO: retention during normal breathing ranged from 60% at 10 mg/m/sup 3/ to 45% at 50 mg/m/sup 3/. CaCO/sub 3/: retention varied from 80% at 10 mg/m/sup 3/ to 70% at 50 mg/m/sup 3/. Mouth-breathing, exercise, or 5% CO/sub 2/ decreased retention by about 10%. Rapid increase in retention at concentrations below 10 mg/m/sup 3/ with little change in concentrations above 50 mg/m/sup 3/ was observed.
- OSTI ID:
- 6288279
- Journal Information:
- J. Ind. Hyg. Toxicol.; (United States), Journal Name: J. Ind. Hyg. Toxicol.; (United States) Vol. 13; ISSN JIHTA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560306* -- Chemicals Metabolism & Toxicology-- Man-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AEROSOLS
ALKALINE EARTH METAL COMPOUNDS
ANIMALS
BIOLOGICAL EFFECTS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CHALCOGENIDES
CLEARANCE
COLLOIDS
DISPERSIONS
DUSTS
EXCRETION
LUNG CLEARANCE
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MAMMALS
MAN
OXIDES
OXYGEN COMPOUNDS
PRIMATES
RETENTION
SOLS
VERTEBRATES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AEROSOLS
ALKALINE EARTH METAL COMPOUNDS
ANIMALS
BIOLOGICAL EFFECTS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CHALCOGENIDES
CLEARANCE
COLLOIDS
DISPERSIONS
DUSTS
EXCRETION
LUNG CLEARANCE
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MAMMALS
MAN
OXIDES
OXYGEN COMPOUNDS
PRIMATES
RETENTION
SOLS
VERTEBRATES