We have to work with industrial hygiene best practices to try to prevent exposure to everything, because we can't be knowledgeable of all of the effects of the newest things that have come down the pipe. For example, there's stuff that is being built into aircraft today. The aircraft are being built out of what's called composite materials. What's in those composite materials? To be honest, I don't know that anybody really knows what happens, because they're an amalgam of carbon fibres and binding agents. When you burn that, what happens? No one can conduct that experiment. I mean, we don't, we can't.
The other point that needs to come out of that is that toxicology is based on the root. For example, everything is toxic in one sense or another. Wood is toxic if I aerosolize it and put it into a dust that I can then inhale, but sitting here at this table isn't toxic or dangerous to me, other than if I bang my head against it.
The problem is one of best practice and protection but also tracking people through time. Again, I come back to presumptive diagnosis.