pilotpantsdown - no, not a disbeliever in the problem - there clearly is one - but very much a disbeliever in generalisations, speculation, paranoia, poor advice, incorrect technical analysis, and bad science. That seems to sum up AOPIS pretty well. Aerotoxic is far more balanced and sensible. Sadly, many see those fighting the good fight on fumes to be nothing more than cynical ambulance-chasers in search of a payout. Some of the people arguing against the 146 and other targeted types do little to dispel that view. The fact is that very few experts support the cause, and there is little money to conduct the massive amount of research needed. Maybe there will be as time goes by, but ridiculous assertions by AOPIS that "we are winning" merely make those leading the fight look like fools (which they aren't). Affected pilots need professional guidance, not hysterical ranting. Must be the Aussie way...