Why arent you posting this on your company BALPA forum? No one outside your CC can do anything for you. If your CC arent doing as you expect, then I suggest you join them at the next election.
It is very easy and 'cheap' to criticise, without being willing to assist. BALPA is just an association of your fellow peers. You have to inspire them to act. Not us!
However, I do agree with your cause. I have been affected by a fumes incident, and probably more, when I wasnt aware. It is a serious issue, which the Authorities refuse to recognise.