Penetration of air-borne particulates through the human nose. II

Journal Article · Sat Jan 01 04:00:00 EST 1949 · J. Ind. Hyg. Toxicol.; (United States)

OSTI ID:6226737

Landahl, H D; Tracewell, T

Five volunteers were exposed to aerosols of methylene blue, bismuth subcarbonate glycerol, sodium sulfate, and tyrosine. Aerosols were drawn through the nose at 17 liters/min. A plot of equivalent impaction diameter (aerodynamic unit density) against penetration shows good consistency for the various particles (importance of impaction). The hygroscopic aerosols (e.g., glycerol) showed lower penetration percentage at each particle size; this effect was significant but not large. Importance of nasal hairs was emphasized by experiments after clipping, which showed the percentage of total removal attributable to nasal hairs was up to 73% for larger particles and 2% for smaller particles.

• OSTI ID: 6226737
• Journal Information: J. Ind. Hyg. Toxicol.; (United States), Journal Name: J. Ind. Hyg. Toxicol.; (United States) Vol. 31; ISSN JIHTA
• Country of Publication: United States
• Language: English

Related Subjects

551000 -- Physiological Systems
560306* -- Chemicals Metabolism & Toxicology-- Man-- (-1987)
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AEROSOLS
ALCOHOLS
ALKALI METAL COMPOUNDS
AMINES
AMINO ACIDS
ANIMALS
AZINES
BIOLOGICAL LOCALIZATION
BISMUTH CARBONATES
BISMUTH COMPOUNDS
BODY
BODY AREAS
CARBON COMPOUNDS
CARBONATES
CARBOXYLIC ACIDS
CHLORIDES
CHLORINE COMPOUNDS
COLLOIDS
DISPERSIONS
DRUGS
FACE
GLYCEROL
HALIDES
HALOGEN COMPOUNDS
HEAD
HETEROCYCLIC COMPOUNDS
HYDROXY ACIDS
HYDROXY COMPOUNDS
HYGROSCOPICITY
INHALATION
INTAKE
MAMMALS
MAN
METHYLENE BLUE
NOSE
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PARTICLE SIZE
PARTICLES
PHENOTHIAZINES
PHYSIOLOGY
PRIMATES
RESPIRATORY SYSTEM
SIZE
SODIUM COMPOUNDS
SODIUM SULFATES
SOLS
SULFATES
SULFUR COMPOUNDS
TYROSINE
VERTEBRATES