Accession Number : ADA139466
Title : Combined Exposure of Methylene Chloride and Carbon Monoxide in Smoking and Nonsmoking Paint Strippers.
Descriptive Note : Master's thesis,
Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH
Personal Author(s) : Miller,R N
Report Date : Dec 1983
Pagination or Media Count : 70
Abstract : Carboxyhemoglobin (COHb) is formed when carbon monoxide (CO) combines reversibly with the oxygen carrying sites on the hemoglobin molecule. COHb levels above 5% increase the risk of angina pectoris and coronary infarctions by decreasing the oxygen supply in the blood and also in the myoglobin of the heart muscle. Cigarette smoke contains 4% carbon monoxide and a one-pack-per-day smoker exhibits COHb levels of about 5.9% (12). Methylene chloride exposure also results in increased COHb levels (2, 3). Therefore, the combined effect of smoking and methylene chloride exposure may increase the risk of disease to dangerous levels. This thesis tests the null hypothesis that smokers do not have statistically significant differences in COHb levels following days of exposure to methylene chloride when compared to days of nonexposure.
Descriptors : *Exposure(Physiology) , *Methylenes , *Chlorides , *Carbon monoxide , Tobacco smoking , Paint removers , Carboranyl radicals , Hemoglobin , Concentration(Chemistry) , Dosage , Blood analysis , Metabolism , Oxygen , Transport properties , Sampling , Males , Females , Coronary disease
Subject Categories : Toxicology
Distribution Statement : APPROVED FOR PUBLIC RELEASE