National Academy of Sciences (NAS) Aircraft Lead
Under construction please check back often!
Reference
Input to National Academy of Sciences (NAS) Consensus Study Report: Options for Reducing Lead Emissions from Piston-Engine Aircraft (pdf) 2021. Needs updates, e.g. to regulations.gov, etc. but contains useful information.
References and Further Reading
The https://close1d2.org Team Provided Input to the National Academies of Science (NAS) Project: Lead Emissions from Piston-Powered General Aviation Aircraft TRB-CAAS-18-03 (html) September 14, 2020 v5.1 (pdf).