I've never heard of this before, but we have a couple of pilots here on the forum that may want to give their input. Full story here.
A seven decade old cause of mysterious public ill health will eventually be solved with solutions which exist - today
Anybody lighting up a cigarette in an airliner these days would be rightly judged by society to be on the wrong side of the law - as it has finally been proven beyond reasonable doubt that exposure to toxic chemicals from tobacco smoke is dangerous.
Yet being exposed to nerve agents contained in jet engine oil in a confined space, according to the aerospace industry, somehow doesn’t cause chronic ill health effects in humans, when repeatedly exposed?
How can nerve agents even get into an airliner cabin? In around 1962 the entire airline industry stopped using pressurised ‘Outside air’ and went over to using ‘Bleed air’ which is piping the pressurised air from the jet engines, unfiltered, into the cabin. But worse still, there are no monitors to detect the deadly contaminants, only human noses.