Editing Gasoline (section)

===Gasoline exhaust===
The [[exhaust gas]] generated by burning gasoline is harmful to both the environment and to human health. After CO is inhaled into the human body, it readily combines with hemoglobin in the blood, and its affinity is 300 times that of oxygen. Therefore, the hemoglobin in the lungs combines with CO instead of oxygen, causing the human body to be [[Hypoxia (medical)|hypoxic]], causing headaches, dizziness, vomiting, and other poisoning symptoms. In severe cases, it may lead to death.<ref>{{Cite web |title=Carbon Monoxide Poisoning |url=https://www.osha.gov/sites/default/files/publications/carbonmonoxide-factsheet.pdf |url-status=live |archive-url=https://web.archive.org/web/20220101071121/http://www.osha.gov/sites/default/files/publications/carbonmonoxide-factsheet.pdf |archive-date=1 January 2022 |access-date=12 December 2021}}</ref><ref>{{Cite web |title=Carbon monoxide poisoning - Symptoms and causes |url=https://www.mayoclinic.org/diseases-conditions/carbon-monoxide/symptoms-causes/syc-20370642 |url-status=live |archive-url=https://web.archive.org/web/20211212225133/https://www.mayoclinic.org/diseases-conditions/carbon-monoxide/symptoms-causes/syc-20370642 |archive-date=12 December 2021 |access-date=2021-12-12 |website=Mayo Clinic |language=en}}</ref> Hydrocarbons only affect the human body when their concentration is quite high, and their toxicity level depends on the chemical composition. The hydrocarbons produced by incomplete combustion include alkanes, aromatics, and aldehydes. Among them, a concentration of methane and ethane over {{Convert|35|g/m3|oz/cuft|abbr=on}} will cause loss of consciousness or suffocation, a concentration of pentane and hexane over {{Convert|45|g/m3|oz/cuft|abbr=on}} will have an anesthetic effect, and aromatic hydrocarbons will have more serious effects on health, blood toxicity, [[neurotoxicity]], and cancer. If the concentration of benzene exceeds 40 ppm, it can cause leukemia, and xylene can cause headache, dizziness, nausea, and vomiting. Human exposure to large amounts of aldehydes can cause eye irritation, nausea, and dizziness. In addition to carcinogenic effects, long-term exposure can cause damage to the skin, liver, kidneys, and cataracts.<ref name="x-engineer.org">{{Cite web |last=x-engineer.org |title=Effects of vehicle pollution on human health – x-engineer.org |url=https://x-engineer.org/effects-vehicle-pollution-human-health/ |url-status=live |archive-url=https://web.archive.org/web/20211212225153/https://x-engineer.org/effects-vehicle-pollution-human-health/ |archive-date=12 December 2021 |access-date=2021-12-12 |language=en-US}}</ref> After NO<sub>x</sub> enters the alveoli, it has a severe stimulating effect on the lung tissue. It can irritate the conjunctiva of the eyes, cause tearing, and cause pink eyes. It also has a stimulating effect on the nose, pharynx, throat, and other organs. It can cause acute wheezing, breathing difficulties, red eyes, sore throat, and dizziness causing poisoning.<ref name="x-engineer.org" /><ref>{{Cite web |title=NOx gases in diesel car fumes: Why are they so dangerous? |url=https://phys.org/news/2015-09-nox-gases-diesel-car-fumes.html |url-status=live |archive-url=https://web.archive.org/web/20211212225135/https://phys.org/news/2015-09-nox-gases-diesel-car-fumes.html |archive-date=12 December 2021 |access-date=2021-12-12 |website=phys.org |language=en}}</ref> [[Fine particulate matter|Fine particulates]] are also dangerous to health.<ref name="canada-2015">{{Cite web |last= |first= |date=2015-10-13 |title=Human Health Risk Assessment for Gasoline Exhaust |url=https://www.canada.ca/en/health-canada/services/publications/healthy-living/human-health-risk-assessment-gasoline-exhaust-summary.html |access-date=2024-09-26 |website=www.canada.ca}}</ref>