Inhalation exposure system for toxicological studies of diesel oil aerosols
This report summarizes the physical and chemical investigations carried out during the past year as part of a study of the inhalation toxicology of diesel fuel aerosols. Diesel fuel is pumped on to the hot manifold of a diesel powered tank where it flash evaporates, and is carried through the exhaust system, then finally expelled into the cooler air where it condenses to form a dense aerosol. This aerosol consists primarily of micron sized droplets of diesel oil; the black sooty particles of normal diesel exhausts are only a very minor fraction of it. The first part of this presentation details the development of a generator which adequately simulates this generation process in a laboratory environment; its implementation onto existing Rochester-type exposure chambers including modifications of these chambers to reliably handle such a dense aerosol; a monitoring system to document exposures; and the physical characterization of the aerosol produced. The second half of the presentation discusses the chemical characterization of the aerosol with particular regard to comparing the laboratory-simulated aerosol with an actual one.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5768852
- Report Number(s):
- CONF-801156-2; ON: DE82004079
- Country of Publication:
- United States
- Language:
- English
Similar Records
Inhalation exposures of rats to aerosolized diesel fuel
Generation and delivery of coal liquid aerosols for inhalation studies
Related Subjects
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AEROSOLS
AIR POLLUTION MONITORS
BIOLOGICAL EFFECTS
COLLOIDS
COMPARATIVE EVALUATIONS
DESIGN
DIESEL ENGINES
DIESEL FUELS
DISPERSIONS
ENGINES
EXHAUST GASES
EXPOSURE CHAMBERS
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INHALATION
INTAKE
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
MONITORS
PARTICLES
PARTICULATES
PETROLEUM PRODUCTS
SIMULATION
SOLS
SOOT
WASTES