http://www.caa.co.uk/docs/33/factor200412.pdf
"Irritant rather than a toxic effect"
The CAA view in 2004 (of a 2000 incident) was that oil fumes were 'irritating....' how right they were, but the wrong sort of 'irritation'.
How do the CAA continue to get away with it now - day in day out?
That's the mystery.
Does anyone else smell a rat and the mother and father of all unchallenged cover up's?