An article published in Britain’s Telegraph yesterday raises an interesting concern about the quality of the air we breathe in airplane cabins. Apparently, the way that air is routed and recirculated through jet engines opens the possibility of leaking fluids to bleed into the system. This could be jet fuel or oil from a hydraulic system that leaks into the passenger air supply and vaporizes into the cabin. Inhaling this cocktail, thus makes us sick. Experts estimate that the problem could affect up to 200,000 passengers a year, including cabin crew and pilots.
So that headache or coughing that you think you might be getting from your seatmate may actually be coming from the cabin air.
It’s difficult to quantify the extent to which this problem has actually occurred. On one hand you have the group of alarmists, many of whom are pilots and revered scientists, pointing out the problem and crying foul. But on the other you have the (clearly biased) airframe manufacturers who claim that there isn’t a problem and the majority of passengers who have never experienced anything like this before.
In the seventy or so flights that I’ve taken in the last year, I personally have never smelled anything of that sort. But I concede that there may have been an issue elsewhere. Read the article and see what you think, and next time you notice that foul smell in your airplane, think twice about where it came from.