It is rather frustrating when suffering these toxic effects to be told for decades that one day the truth will out. The problem lies in the fact that apart from occasional extreme occurrences the day to day accumulations of low exposure take years before symptoms show.
Those of us who regularly fly or flew some types know well the odour associated with oil fumes. Back in the 90s we were unaware of the cumulative toxic nature of these fumes.
It is strange that these toxic substances are still being inflicted on passengers and crew. One day no doubt we will look back and wonder how it was allowed to happen, over the years this has often been the case in industrial poisoning.