fossil-fuel-powered aircraft no relation air pollution
Environmental impact
Like all activities involving combustion, fossil-fuel-powered aircraft release soot and other pollutants into the atmosphere. Greenhouse gases such as carbon dioxide (CO2) are also produced. In addition, there are environmental impacts specific to airplanes: for instance,Airplanes operating at high altitudes near the tropopause (mainly large jet airliners) emit aerosols and leave contrails, both of which can increase cirrus cloud formation – cloud cover may have increased by up to 0.2% since the birth of aviation.
Airplanes operating at high altitudes near the tropopause can also release chemicals that interact with greenhouse gases at those altitudes, particularly nitrogen compounds, which interact with ozone, increasing ozone concentrations.
Most light piston aircraft burn avgas, which contains tetraethyllead (TEL). Some lower-compression piston engines can operate on unleaded mogas and turbine engines and diesel engines – neither of which require lead – are used on some newer light aircraft. Some non-polluting light electric aircraft are already in production.Another environmental impact of airplanes is noise pollution, mainly caused by aircraft taking off and landing.
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