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Citation
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HERO ID
10355
Reference Type
Journal Article
Title
Polyvinyl chloride toxicity in fires: hydrogen chloride toxicity in fire fighters
Author(s)
Dyer, RF; Esch, VH
Year
1976
Is Peer Reviewed?
Yes
Journal
JAMA: Journal of the American Medical Association
ISSN:
0098-7484
EISSN:
1538-3598
Report Number
NIOSH/00136859
Volume
235
Issue
4
Page Numbers
393-397
DOI
10.1001/jama.235.4.393
Web of Science Id
WOS:A1976BC87200019
URL
http://
://WOS:A1976BC87200019
Exit
Abstract
Toxic effects of polyvinyl-chloride (9002862) (PVC) on firefighters are reviewed. Hydrogen-chloride (7647010) is released by the thermal degradation of PVC, a common material in electrical wiring insulation, and plastics. Smoke is a suspension of small particles in hot air and gases. The particulate fraction consists of carbon (7440440) and particles coated with combustible products such as organic acids and aldehydes. Carbon-monoxide (630080) and carbon-dioxide (124389) are always present and constitute the bulk of the gaseous fraction. However a wide variety of other toxic gases such as phosgene (75445), benzene (71432), toluene (108883), xylene (1330207), naphthalene (91203), and vinyl-chloride (75014) are present. The toxic effects of these gases are small when compared to the toxicity of hydrogen-chloride. The synergistic effects of these gases is unknown. On entering the lungs many of these agents react with water to produce strong acids and alkalis. A violent inflammatory response occurs causing destruction of lung tissue. Many plastics produce large volumes of pulmonary irritant gases when burned. The firefighter is at fatal risk if he does not know that plastic covered cable is involved in a fire. The period just after the fire is extinguished, called the overhaul phase, is hazardous. Toxic smoke and fumes are still being emitted. This is the period in which toxic gas inhalation occurs since many firefighters remove their self contained breathing apparatus. Another hazard occurs when concrete retains heat and releases fumes throughout the overhaul phase. Exposure to many of these degradation products may not produce symptoms for up to 6 hours after the fire. Treatment after the onset of symptoms is usually ineffective. The authors suggest the mandatory use of breathing apparatus, control of hazardous building designs, use of protective masks during over haul phase, and use of air sampling techniques as preventive measures in reducing hazards for firefighters.
Keywords
DCN-124980
;
Pyrolysis products
;
Lung irritants
;
Fire fighting
;
Occupational exposure
;
Health hazards
;
Safety practices
;
Health protection
;
Air quality measurement
Tags
IRIS
•
Naphthalene
Previous HERO references
Database Searches
Toxline
Combined data set
Data set for title/abstract screening
Excluded - PECO criteria not met (TIAB)
•
Naphthalene (2021 Evidence mapping publication)
Previous HERO references
Database Searches
Toxline
Combined data set
Data set for title/abstract screening
Excluded – PECO criteria not met
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