Getting the Lead Out (image) Cary Institute of Ecosystem Studies Share Print E-Mail Caption Removal of lead from gas has resulted in a >95% decrease in the concentration of lead in the air. Graph reflects mean air concentration of lead (Pb) measured at eight US monitoring sites from 1980 to 2015. Credit Photo: Joe Mabel / Wikimedia Commons Usage Restrictions To promote this press release. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.