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The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

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Technical Assistance Report TA 79-25, Detroit Canada Tunnel, Detroit, Michigan.

PB80192065

Publication Date	1980
Page Count	12
Abstract	Based on the information collected during the time of this evaluation no health hazard existed to inspectors under the current methods of operation. Results do indicate that although carbon monoxide exposures were not in excess of recommended levels, an increase in COHb levels occurred during the shifts. Even though these increases were not excessive, the practice of rotating inspectors should be continued so as not to unduly expose these individuals.
Keywords	Hazardous materials Industrial medicine Environmental surveys Exposure Toxicity Criteria Inspection Standards Recommendations Industrial hygiene Concentration(Composition) Thresholds(Physiology) Michigan Carbon monoxide Lead(Metal) Sulfuric acid Benzene Noise(Sound) Toxic substances Occupational safety and health CAS 680-08-0 Air sampling Maximum permissible exposures Detroit(Michigan) Carboxyhemoglobin CAS 7434-92-1 CAS 7664-93-9 CAS 71-43-2 CAS 9061-29-4
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 57Y - Toxicology 94D - Job Environment 68G - Environmental Health & Safety
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH. Health Hazard and Technical Assistance Branch.
Document Type	Technical Report
NTIS Issue Number	198020

Technical Assistance Report TA 79-25, Detroit Canada Tunnel, Detroit, Michigan.

Technical Assistance Report TA 79-25, Detroit Canada Tunnel, Detroit, Michigan.
PB80192065

Publication Date	1980
Page Count	12
Abstract	Based on the information collected during the time of this evaluation no health hazard existed to inspectors under the current methods of operation. Results do indicate that although carbon monoxide exposures were not in excess of recommended levels, an increase in COHb levels occurred during the shifts. Even though these increases were not excessive, the practice of rotating inspectors should be continued so as not to unduly expose these individuals.
Keywords	Hazardous materials Industrial medicine Environmental surveys Exposure Toxicity Criteria Inspection Standards Recommendations Industrial hygiene Concentration(Composition) Thresholds(Physiology) Michigan Carbon monoxide Lead(Metal) Sulfuric acid Benzene Noise(Sound) Toxic substances Occupational safety and health CAS 680-08-0 Air sampling Maximum permissible exposures Detroit(Michigan) Carboxyhemoglobin CAS 7434-92-1 CAS 7664-93-9 CAS 71-43-2 CAS 9061-29-4
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 57Y - Toxicology 94D - Job Environment 68G - Environmental Health & Safety
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH. Health Hazard and Technical Assistance Branch.
Document Type	Technical Report
NTIS Issue Number	198020