Part 2 of 4 – Carbon Monoxide Detectors

Potential Sources of Carbon Monoxide

Any fuel-burning appliances which are malfunctioning or improperly installed can be a source of CO, such as:
  • furnaces;
  • stoves and ovens;
  • water heaters; Cars should never be left running in a garage
  • dryers;
  • room and space heaters;
  • fireplaces and wood stoves;
  • charcoal grills;
  • automobiles;
  • clogged chimneys or flues;
  • space heaters;
  • power tools that run on fuel;
  • gas and charcoal grills;
  • certain types of swimming pool heaters; and
  • boat engines.

 

PPM % CO
in air
Health Effects in Healthy Adults Source/Comments
0 0% no effects; this is the normal level in a properly operating heating appliance
35 0.0035% maximum allowable workplace exposure limit for an eight-hour work shift The National Institute for Occupational Safety and Health (NIOSH)
50 0.005% maximum allowable workplace exposure limit for an eight-hour work shift               OSHA
100 0.01% slight headache, fatigue, shortness of breath,
errors in judgment
125 0.0125% workplace alarm must sound (OSHA)
200 0.02% headache, fatigue,
nausea, dizziness
400 0.04% severe headache, fatigue, nausea, dizziness, confusion; can be life-threatening after three hours of exposure evacuate area immediately
800 0.08% convulsions, loss of consciousness;
death within three hours
evacuate area immediately
12,000 1.2% nearly instant death

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