Respiratory effects of acid containing-multicomponent pollutant atmospheres. Final report, 29 April 1985-29 July 1987
The purpose of the study was to assess adverse effects on the respiratory system caused by inhaling acidic air pollutants in mixtures with other pollutants commonly present in California urban air. The investigators exposed rats for four hours to either: a mixture of ozone, nitrogen dioxide, sulfur dioxide, manganese, ferric and ammonium sulfates, and carbon soot; a mixture of nitric acid and sulfuric acid; a mixture of ozone and nitrogen dioxide; or ozone. The effects examined included: reflex breathing-pattern changes, histopathological changes in the lung and nasal regions, changes in particle-clearance rates, and changes in pulmonary surfactant. Acid components had no significant effects on the parameters examined. Mixtures containing 0.35-ppm ozone showed effects that could be attributed to ozone alone.
- Research Organization:
- California Univ., Irvine (USA). Dept. of Community and Environmental Medicine
- OSTI ID:
- 6677030
- Report Number(s):
- PB-88-235718/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
HEALTH HAZARDS
AMMONIUM SULFATES
RESPIRATION
IRON SULFATES
NITROGEN DIOXIDE
OZONE
SOOT
SULFUR DIOXIDE
HISTOLOGY
LABORATORY ANIMALS
PROGRESS REPORT
SULFATES
TOXICITY
AMMONIUM COMPOUNDS
CHALCOGENIDES
DOCUMENT TYPES
HAZARDS
IRON COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION
SULFUR COMPOUNDS
SULFUR OXIDES
TRANSITION ELEMENT COMPOUNDS
560300* - Chemicals Metabolism & Toxicology
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)