What Is a Common Hazard Present in Small Engine Exhaust Fumes?

Carbon Monoxide

• Carbon monoxide (CO) is an odorless, colorless component of small engine exhaust. According to MayoClinic.com, when carbon monoxide is inhaled it can bond to the oxygen receptors of hemoglobin, blocking the transportation of oxygen in the body and causing symptoms that include headache, weakness, dizziness, nausea, confusion or loss of consciousness.
  
  

Carbon Dioxide

• Less of an immediate hazard than carbon monoxide, carbon dioxide (CO2) is still a gas of concern. It is estimated that five percent of all CO2 emissions in the united states come from gas-powered lawnmowers and other yard equipment.
  
  

Oxides of Nitrogen

• Included among other oxides of nitrogen produced as byproducts of combustion is nitrous dioxide (NO2). Nitrous dioxide is 300 times more potent as a greenhouse gas than carbon dioxide.
  
  

Hydrocarbons

• According to Alpha Online, a number of exhaust hydrocarbons are toxic and some are potentially carcinogenic. As well, these hydrocarbons can react with nitrogen oxides to form smog, which is irritating to the eyes, nose and throat and damages the lungs.