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			 Carbon
				Monoxide .pdf
				version  
			 Should You Be
				Concerned?  
			 You can't see, taste, feel, or smell carbon
				monoxide (CO). However, this deadly gas can make you very sick or even kill
				you. Over 5,000 people in the United States die every year after breathing too
				much CO. The signs of CO poisoning seem like the flu. Many people don't even
				know they've been breathing in CO. People who survive can suffer brain damage,
				lose their sight or hearing, or have heart problems. It is a major threat to
				your family's health. The good news is that you can prevent CO poisoning. This
				section will help you ask the right questions to find out if the air in your
				home is safe and healthy.   
			 There can be so much CO in a burning building
				that breathing smoke for as little as one minute can kill you. Lower levels,
				such as from smoking, do not kill right away. They can cause many other health
				problems though. Children, unborn babies, people with asthma, older adults, or
				people with heart or lung problems are more likely to get hurt from breathing
				CO. But remember, CO harms even healthy people.   
			 Where Does CO Come
				From?   
			 Fuel-burning appliances use gas, oil, or wood
				to produce heat. If they are not working right, they can make CO. Most gas
				appliances that have been put in and taken care of properly are safe and make
				very little CO. Electric appliances do not burn fuel and so make no CO. Common
				sources of CO include:  
			  
				-  Gas and oil furnaces, boilers, and water
				  heaters
  
				-  Wood-burning fireplaces and stoves
				  
  
				-  Gas appliances like ovens, stoves, or
				  dryers 
  
				- Gas and kerosene space heaters 
  
				- Gas and charcoal grills 
  
				- Cars, trucks, campers, tractors, and other
				  vehicles 
  
				- Gasoline and liquid propane (LP)-powered
				  small equipment, including lawn mowers, snow blowers, chainsaws, pressure
				  washers, and electric generators 
  
				- Recreational vehicles, including boat
				  motors, all terrain vehicles (ATVs), ski-boats, and generators in campers and
				  houseboats o Tobacco smoke 
  
				- House fires 
  
				-  Blocked chimneys and flues 
  
			   
			 Breathing in low levels of CO can hurt your
				brain, heart, or other parts of your body. At high levels, the brain is so
				short of oxygen that you cannot think clearly. You lose control of your muscles
				and may be unable to move to safety. High-level CO poisoning can cause loss of
				consciousness, coma, and death.   
			 There are simple but important steps to take to
				find out if your family is at risk for CO poisoning. The questions on the
				following page will help you do that. This section
				will give you ideas of what to do to keep the air in your home safe to breathe.
				  
			 What are the Signs
				of CO Poisoning?  
			 People often think CO poisoning is the flu.
				That's because it can feel like the flu. Signs of low-level CO poisoning may
				include:  
			  
				-  Headache 
  
				- Nausea 
  
				-  Vomiting 
  
				-  Dizziness 
  
				-  Confusion 
  
				-  Tiredness 
  
				-  Weakness 
  
				-  Sleepiness 
  
				-  Tightness in the chest 
  
				-  Trouble breathing 
  
			   
			  
				 
				  |  
					  CO and
						Smoking  
					  If you smoke, you breathe in carbon
						monoxide and many other chemicals. If you smoke indoors, people around you also
						breathe the smoke (called second-hand or environmental tobacco smoke). Smoking
						can make minor health problems worse and cause major diseases like cancer and
						heart disease. If you need help quitting, contact the American Lung Association
						at 1-800-LUNG-USA.    |  
				  
			   
			  Questions to ask?   
			  
				- Do you sometimes use charcoal grills or
				  small gasoline engines inside your home, garage, or closed-in porch?
				  
  
				-  Do you have an attached garage?
				  
  
				-  Do you sometimes warm up your car inside
				  the garage? 
  
				-  Has it been more than one year since you or
				  your landlord had your furnace, fireplace, wood stove, or chimney inspected or
				  cleaned? 
  
				-  Do you ever use a gas or kerosene space
				  heater or a vent-free gas fireplace? 
  
				-  Does your home have a carbon monoxide
				  alarm? 
  
				-  Do you ever use the kitchen stove or oven
				  to heat your home? 
  
				-  Do you sometimes forget to turn on the
				  kitchen exhaust fan when using the oven? 
  
				-  Do some of the burners on the kitchen stove
				  burn yellow or orange? * 
  
				-  Does smoke from the fireplace sometimes
				  come back into the room? 
  
				-  Are your appliances and furnace in good
				  shape? 
  
				-  Are the vent pipes for your furnace,
				  boiler, heater rusty or falling apart? *
				  
  
				-  Do you have a gas water heater that does
				  not have a vent? * 
  
				-  Is there rust, soot, or dirt on your
				  furnace, boiler, or water heater? * 
  
				-  Is your furnace or boiler over ten years
				  old? * 
  
				-  Have you weather-stripped doors and windows
				  or insulated your home? *
  
				-  Have you closed off vent or combustion air
				  openings? * 
  
			   
			  
				 
				  |  
					  Safety Checklist
						  
					 If you answered yes to any of the starred
						questions pay special attention to this checklist. Remember, putting in and
						taking care of heating appliances like stoves and furnaces can be dangerous.
						Only trained and qualified workers should do this.   
					  
						-  Turn off an appliance or heater that
						  starts making different noises, smells funny, starts sooting, has a
						  differentlooking flame, or does not seem to be working right. Call a heating
						  contractor for repairs. 
  
						-  Read and follow the instructions that
						  came with your appliance or unvented gas heater. 
  
						-  Provide good ventilation for all
						  heating appliances. 
  
						-  Keep all wood, paper, cloth, and
						  furniture away from heating appliances. 
  
						-  Don't block an appliance's air
						  openings. 
  
						-  Have all appliances checked every
						  year by a qualified heating contractor. 
  
						-  Ask the contractor to check for
						  carbon monoxide and look at the vent (chimney) system. 
  
						-  If you insulate and weather-strip
						  your home, call a heating contractor to make sure there is still enough
						  ventilation. 
  
						-  If you smell gas or if the smoke
						  detector or the carbon monoxide alarm goes off, leave the building right away
						  and call 9-1-1. 
  
					    |  
				  
			   
			 Actions Steps  
			  
				- Never use charcoal grills or run
				  engines inside your home, garage, or basement even for a short time. Charcoal
				  grills and small gasoline engines make a lot of carbon monoxide. Even opening
				  all the windows and doors will not give you enough fresh air to prevent CO
				  poisoning. 
  
				- Never warm up a vehicle inside the
				  garage. Warming up your car, truck, or motorcycle on a cold day for just a
				  couple of minutes (even with the garage door open) can make enough CO to make
				  you sick. Start lawnmowers, snow blowers, and other yard equipment outdoors.
				  
  
				- Have a heating contractor check your
				  furnace, chimneys, and other sources of CO every fall to make sure everything
				  is okay. (You can find one in the telephone book.) Make sure they use a tool
				  that measures CO. To get harmful gases out of a home, many heating appliances
				  have chimneys. (Chimneys on gas appliances are called vents). The chimney
				  carries CO and other gases from the appliance outdoors. If your appliances and
				  vents are working right there should be little CO. If you rent, ask your
				  landlord to have the heating system checked. 
  
				-  Make sure chimneys are in good shape -
				  clean and working right. Have your chimney, wood-burning fireplace, or wood
				  stove swept every year. Burning wood nearly always makes a lot of CO. It is
				  very important that all the smoke goes out the chimney. 
  
				-  If you use unvented kerosene or gas heaters
				  OR a vent-free gas fireplace, follow instructions carefully and open a window
				  for fresh air. Do not use them while sleeping. 
  
				- Put carbon monoxide alarms near each
				  sleeping area and on each floor of your home. (Older models are called carbon
				  monoxide detectors.) You can find them at your local hardware, discount,
				  outlet, or building supply store for $20 to $50. 
  
				-  Never use the kitchen stove or oven to heat
				  your home. 
  
				-  Always turn on the kitchen exhaust fan when
				  using the oven. 
  
				-  Have the kitchen stove fixed before using
				  it if the flames burn orange or yellow. 
  
				-  Don't use a smoking fireplace until you fix
				  the problem. 
  
			   
			 Carbon Monoxide
				Alarms   
			 Carbon monoxide (CO) alarms will help protect
				you and your family from sickness or death. A good alarm will make a loud noise
				when CO levels become too high. There are plug-in and battery operated alarms.
				Look on the package to make sure the alarm is okayed by a qualified testing
				laboratory, such as Underwriters Laboratory (UL). Check the batteries on a
				battery-operated alarm every six months. Every home should have at least one
				alarm. It's best to put one near each sleeping area and on each level of the
				home. Carbon monoxide alarms do not take the place of checking and taking good
				care of your home's furnace, fireplace, or space heaters.   
			 If someone in your family shows signs of CO
				poisoning or if a CO alarm goes off:  
			  
				-  Get outside right away. 
  
				-  Call 9-1-1 or your local emergency number
				  from a phone outside your home. 
  
				-  See a doctor or nurse right away. See a
				  doctor or nurse even if you feel better after breathing fresh air. They can
				  check your blood and breath for CO and tell if you need more medical care.
				  
  
				-  Treat all alarm soundings as an emergency.
				  Never ignore an alarm sounding! 
  
				-  Have your home checked out by a qualified
				  heating contractor. You can find one in the telephone book. 
  
				-  Don't go back home until all problems have
				  been fixed. 
  
			   
			 When in Doubt,
				Check It Out  
			 Your local county Extension
				Office      -look in your telephone book 
			 
			 Your local or state health department
				      -look in your telephone book  
			 Iowa State University Cooperative Extension
				http://www.extension.iastate.edu/Pages/communications/CO/ 
			 
			 The Consumer Products Safety
				Commission (800) 638-2772 
				http://www.cpsc.gov/cpscpub/pubs/466.html 
			 
			 The American Lung Association (800) LUNG-USA
				 http://www.lungusa.org/air/carbon_factsheet99.html 
			 
			 Healthy Indoor Air for America's Homes
				 (406) 994-3451 http://www.montana.edu/wwwcxair/ 
			 
			 Next Chapter:  Lead >>  
			 This chapter was written by Thomas
				Greiner, Iowa State University Cooperative Extension. ©2002 University of
				Wisconsin Extension. All Rights Reserved.  |