The contaminant has been linked to the deaths of more than 300 children in Africa and Asia
Davie, currently chief executive of BBC Studios and also responsible for developing the BBC’s international brand and editorial strategy, will replace Tony Hall in the most high-profile broadcasting job in Britain.
“This has been a critical time for the UK and these past few months have shown just how much the BBC matters to people,” Davie said. “Our mission has never been more relevant, important or necessary. I have a deep commitment to content of the highest quality and impartiality.”