Toxic Cabin Air Victory
The Bae 146 Alf engine (Helicopter designed powerplant) was modified to power Bae 146 and incorporated customer bleed air. Their Carbon friction bearing seals can wear and pressure can drop across seals at the top of climb of even good seals allowing some oil fume by pass to a/con system.
Most fixed wing A/C have power plants with Labyrinth bearing seals ( no contacting parts ) and give nil problems and work by differential pressure.
APU's have carbon friction bearings seals and when worn can contaminate bleed air ducts upstream to engine isolation valves and down stream a/con system.
Ansett introduced monitoring units in the aft overhead locker and changed the engine oil from Mobil jet 11 to 294 less carcinogetic.
Monash university should release a report end 2010 from a committee formed 18 months ago as advertised in The Australian which i am awaiting a reply.
I believe I have a solution and been in contact with Boeing, The French say it's no bigger deal than theater odours and not a problem.
A/C cabins are a confined space and create body odours, Galley odours, lavortory odours and can suffer engine oil vapours, Straight away pillows which adsorb unwanted vapours could be placed in overhead lockers until vapour filters are fitted to various systems.
Awaiting reply's from manufactures, they showed initial interest.