World says goodbye to leaded petrol: Algeria becomes the final country to end the use of the fuel - a century after it was first declared toxic

The agency said the dollar figure came from a 2010 study led by scientists at California State University at Northridge.

https://www.dailymail.co.uk/sciencetech/article-9940309/Leaded-petrol-runs-gas-century-warnings-UN.html

Daily Mail, United Kingdom