Carbon Monoxide Alarms Mandatory For New Constructions!

Posted by: najirashid on Monday, March 3rd, 2008

Effective January 1, 2008, all newly constructed dwellings including a one or two family dwelling, multifamily dwelling, hotel, motel, or dormitory must have Carbon Monoxide Alarms. I believe this is a major step in the right direction. Unfortunately, so many people do not take carbon monoxide serious. Below is so good information on carbon monoxide and how to protect yourself against it.

Definition

Carbon monoxide (CO) is a colorless, practically odorless, and tasteless gas or liquid. It results from incomplete oxidation of carbon in combustion.  Burns with a violet flame.  Slightly soluble in water; soluble in alcohol and benzene.  Specific gravity 0.96716;  boiling point -190oC; solidification point -207oC; specific volume 13.8 cu. ft./lb. (70oF).  Auto ignition temperature (liquid) 1128oF.  Classed as an inorganic compound.
Source:  “The Condensed Chemical Dictionary,” 9th ed., revised by Gessner G. Hawley, Van Nostrand Reinhold Co., NY, 1977.

Sources of Carbon Monoxide

Unvented kerosene and gas space heaters; leaking chimneys and furnaces; back-drafting from furnaces, gas water heaters, wood stoves, and fireplaces; gas stoves; generators and other gasoline powered equipment; automobile exhaust from attached garages; and tobacco smoke.  Incomplete oxidation during combustion in gas ranges and unvented gas or kerosene heaters may cause high concentrations of CO in indoor air.  Worn or poorly adjusted and maintained combustion devices (e.g., boilers, furnaces) can be significant sources, or if the flue is improperly sized, blocked, disconnected, or is leaking.  Auto, truck, or bus exhaust from attached garages, nearby roads, or parking areas can also be a source.

Health Effects Associated with Carbon Monoxide

At low concentrations, fatigue in healthy people and chest pain in people with heart disease. At higher concentrations, impaired vision and coordination; headaches; dizziness; confusion; nausea. Can cause flu-like symptoms that clear up after leaving home. Fatal at very high concentrations.  Acute effects are due to the formation of carboxyhemoglobin in the blood, which inhibits oxygen intake.  At moderate concentrations, angina, impaired vision, and reduced brain function may result.  At higher concentrations, CO exposure can be fatal.

Levels in Homes

Average levels in homes without gas stoves vary from 0.5 to 5 parts per million (ppm). Levels near properly adjusted gas stoves are often 5 to 15 ppm and those near poorly adjusted stoves may be 30 ppm or higher.

Steps to Reduce Exposure to Carbon Monoxide

It is most important to be sure combustion equipment is maintained and properly adjusted.  Vehicular use should be carefully managed adjacent to buildings and in vocational programs.  Additional ventilation can be used as a temporary measure when high levels of CO are expected for short periods of time.

  • Keep gas appliances properly adjusted.
  • Consider purchasing a vented space heater when replacing an unvented one.
  • Use proper fuel in kerosene space heaters.
  • Install and use an exhaust fan vented to outdoors over gas stoves.
  • Open flues when fireplaces are in use.
  • Choose properly sized wood stoves that are certified to meet EPA emission standards. Make certain that doors on all wood stoves fit tightly.
  • Have a trained professional inspect, clean, and tune-up central heating system (furnaces, flues, and chimneys) annually. Repair any leaks promptly.
  • Do not idle the car inside garage.

3 Responses to “Carbon Monoxide Alarms Mandatory For New Constructions!”

Yamisi Says:
March 20th, 2008 at 8:26 AM

Great post Naji!!! I think this is definitely a step in the right direction and wish it had been implemented sooner.

Tony Says:
June 10th, 2009 at 3:03 PM

How hard would it be to make them manditory for all homes

Naji Rashid Says:
June 11th, 2009 at 10:00 AM

Hello Tony,
It would be difficult to get all homeowners to comply!

 

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