[Xaccers]

If a next door neighbour was to continually play their music at the legal limit, then I am not in a position to demand they do not continue to do so.
Just as while I'm sleeping during the day from working nights, I cannot demand that the builders down the road stop using their JCB's or Jack Hammers, and I certainly wouldn't demand legislation to be able to do so! Instead I close the window.
If someone is performing a completely legal activity which I do not want to participate in, it is up to me and not them to rectify the matter, either by moving myself away, or putting up a barrier of protection between myself and their activities.
Additionally, such activities by my neighbour would also have a detrimental effect on my health, despite what you have claimed.

UK registered airlines ban smoking due to fire risks not respitory health risks.

It is pointless talking about a ban on smoking in pubs as there is no such ban put forward.
There is however a proposed ban on smoking in places which serve food.
This will lead the establishment to either drop smoking, or drop food.
Now a large restaurant such as Harvester where it's main income is from food is not likely to suffer much (I'd also like to point out that in every harvester I've been in, there has been no smoke at all in the eating area so the ban won't make a difference to patrons who go there to eat), however, pubs which serve food but are predominantly still a drinking establishment are the ones who will be forced to drop food rather than smoking.
The Lounge is a prime example of what happens when a drinking establishment drops smoking while other establishments allow it (by dropping food post ban).
They go bust.
The Lounge used to be a smoking establishment and didn't go bust, it gave up smoking and died.
People would rather drink in a smoking pub than in a similar pub which is non-smoking and serves food.
Now Clarie, I know you don't like us using the Lounge as an example because it is such a good example, and you can go on about "a blanket ban which levels the playing field" but as a blanket ban is not what is being proposed, your'e talking about what if's and maybe's rather than what actually is likely to happen.
After the ban on smoking in establishments which serve food, you'll have fewer places to eat simply because pubs who serve food will no longer be able to, even those who have seperated no-smoking areas which are completely smoke free, and only request their workers who are smokers to work in the smoking area.