Small gasoline-powered aircraft are the single largest emitter of lead in the United States, as other major emission sources such as automobile gasoline have been previously addressed. A highly toxic substance that can result in an array of negative health effects in humans, lead is added to aviation gasoline to meet the performance and safety requirements of a sizable portion of the country’s gasoline-powered aircraft.
90-minute Webinar: https://vimeo.com/507967268
Summary PowerPoint : http://onlinepubs.trb.org/onlinepubs/webinars/210202.pdf
Final Published Report (143 pages): https://www.nap.edu/catalog/26050/options-for-reducing-lead-emissions-from-piston-engine-aircraft