Respiratory responses to laboratory-generation acid fog in healthy and asthmatic volunteers
- Rancho Los Amigos Hospital, Inc., Los Angeles, CA (USA)
The authors discuss a program to provide a first step towards assessing acute health-related effects of acid fog exposure. Polluted ambient fog was simulated in a laboratory exposure chamber. Volunteer subjects were purposely exposed and studied during periods of exercise and rest while in the challenge atmosphere. Respiratory responses were measured by methods used to assess effects of irritant gases and dry'' respirable aerosols. When a pilot study showed no obvious unfavorable effects with ambient-like pollution conditions, the exposure concentrations for the present study were extended into the occupational range, well above ambient levels. Sulfuric acid was selected for use as the test pollutant, based upon previous research experience and the availability of fog data documenting its presence during ambient fog episodes.
- OSTI ID:
- 5105004
- Report Number(s):
- CONF-870695-; CODEN: PRAPA
- Journal Information:
- Proceedings, Annual Meeting, Air Pollution Control Association; (USA), Vol. 3; Conference: 80. annual meeting of the Air Pollution Control Association, New York, NY (USA), 21-26 Jun 1987; Other Information: Technical Paper 87-42.4; ISSN 0193-9688
- Country of Publication:
- United States
- Language:
- English
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29 ENERGY PLANNING
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99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
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AIR POLLUTION
HEALTH HAZARDS
NITRIC ACID
AEROSOLS
SULFURIC ACID
ACIDIFICATION
ASTHMA
ATMOSPHERIC PRECIPITATIONS
CARBON DIOXIDE
CHEMICAL REACTIONS
ENVIRONMENT
ENVIRONMENTAL EXPOSURE PATHWAY
FOG
HUMAN POPULATIONS
PARTICLE SIZE
POLLUTANTS
PUBLIC HEALTH
RESEARCH PROGRAMS
RISK ASSESSMENT
SAFETY
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
COLLOIDS
DISEASES
DISPERSIONS
HAZARDS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
OXIDES
OXYGEN COMPOUNDS
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540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
290300 - Energy Planning & Policy- Environment
Health
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552000 - Public Health
560300 - Chemicals Metabolism & Toxicology