Editing Combustion (section)

====Problems associated with incomplete combustion====

=====Environmental problems=====
These oxides combine with [[water]] and [[oxygen]] in the atmosphere, creating [[nitric acid]] and [[sulfuric acids]], which return to Earth's surface as acid deposition, or "acid rain." Acid deposition harms aquatic organisms and kills trees. Due to its formation of certain nutrients that are less available to plants such as calcium and phosphorus, it reduces the productivity of the ecosystem and farms. An additional problem associated with [[nitrogen oxides]] is that they, along with [[hydrocarbon]] pollutants, contribute to the formation of [[ground level ozone]], a major component of smog.<ref name="education.seattlepi.com">{{cite web|title=Environmental Problems associated with incomplete combustion |work= Seattle PI - Education|date= 25 February 2014|url= http://education.seattlepi.com/environmental-problems-associated-combustion-hydrocarbons-5621.html|last1= Reeder|first1= Elizabeth}}</ref>

=====Human health problems=====
Breathing [[carbon monoxide]] causes headache, dizziness, vomiting, and nausea. If carbon monoxide levels are high enough, humans become unconscious or die. Exposure to moderate and high levels of carbon monoxide over long periods is positively correlated with the risk of heart disease. People who survive severe [[carbon monoxide poisoning]] may suffer long-term health problems.<ref>{{cite web|title=Carbon Monoxide Poisoning|date=8 December 2020|url=https://ephtracking.cdc.gov/showCoRisk.action}}</ref> Carbon monoxide from the air is absorbed in the lungs which then binds with [[hemoglobin]] in human's red blood cells. This reduces the capacity of red blood cells that carry oxygen throughout the body.