Local air quality
Air transport has an impact on local air quality and is a major concern in residential areas nearby airport facilities. Emissions of nitrogen oxides (NOx), volatile organic compounds and particulates are potential health hazards and with adverse impacts on the environment. In addition, NOx emissions from aviation contribute to ozone formation and
thus to global warming. While over the last 40 years, reductions of up to 70% in fuel consumption per passenger seat have been achieved, expected growth in air traffic implies further increases in emissions. Advances in technology are needed to improve current air quality levels despite increases in air traffic volumes.