Effects of sulfate aerosols upon human pulmonary function. Final report
Both normal and asthmatic adult male volunteers were exposed for 2-hour periods (with intermittent exercise) to ammonium sulfate ((NH4)2SO4), ammonium bisulfate (NH4HSO4), and sulfuric acid (H2SO4) aerosols, of size distributions and concentrations intended to simulate the worst cases likely to occur in ambient pollution episodes. Standard lung physiology tests were performed by the subjects upon entering and prior to exiting from a carefully controlled environmental chamber. Aerosol concentration and size distribution were determined by on-line computer/aerometric monitoring system, and gravimetric and chemical analyses were performed on impactor and total filter samples. Little or no evidence of adverse health effects were observed from two-hour exposures performed on two or three successive days.
- Research Organization:
- Rancho Los Amigos Hospital, Inc., Downey, CA (USA). Professional Staff Association
- OSTI ID:
- 5522445
- Report Number(s):
- PB-296656
- Country of Publication:
- United States
- Language:
- English
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63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AEROSOLS
AIR POLLUTION
AMMONIUM COMPOUNDS
AMMONIUM SULFATES
ASTHMA
BODY
CARDIOVASCULAR SYSTEM
CHEMICAL ANALYSIS
COLLOIDS
DATA
DISEASES
DISPERSIONS
DISTRIBUTION
EXPERIMENTAL DATA
HUMAN POPULATIONS
HUMIDITY
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
LUNGS
MALES
NUMERICAL DATA
ORGANS
OXYGEN COMPOUNDS
PATIENTS
PHYSIOLOGY
POLLUTION
POPULATIONS
RESPIRATORY SYSTEM
RESPIRATORY SYSTEM DISEASES
SOLS
SULFATES
SULFUR COMPOUNDS
SULFURIC ACID
TOXICITY