The programme has also seen first-hand testimony from a pilot working for a major UK airline who believes he was affected by toxic fumes while landing at Birmingham Airport in 2014.
“Almost instantly myself and the captain became very unwell and decided it was bad enough to place our oxygen masks on,” he said.
“We didn’t declare a mayday – mostly due to not being able to think of the words needed to say – and ended up auto-landing the plane and simply briefing, ‘Whoever is alive or conscious, pull back the thrust levels after touchdown.’ It was that serious.”
For more information click here.
Programme on BBC2 at 0915 8th June 2015