Benzene Exposure
on a similar note, it has been shown there are links between benzene exposure and Acute Myelogenous Leukemia (AML). Benzene is found in fuels; notably in aviation fuels it is at a slightly higher concentration than in regular petrol. Benzene is also generated as a by product of combustion, so if you've been in the efflux, or been near anything nasty that is/was on fire, you could have also been exposed.
I would be curious to know if the leukemia incidence is significantly higher in service personnel in the air environment than a regular civvy.
Proving that your cancer is service attributable is a different story though!