In article ,
dave writes:
Do LL lamps (as sold in many diy stores) contain Hg vapour? If so, how should
they be properly disposed of?

If you mean compact fluorescents, then yes.

Same question of fluorescent lamps - or is there some other element/risk with
them?

Yes.

If you are a business unit chucking out sizable quantities,
there are various hazardous waste schemes. For a home, the
quantites of mercury are too small for anyone to worry about
it yet. There's more mercury in the fillings in your teeth
(3g on average goes up the crematorium chimney per person)
than the amount you will chuck out in fluorescent lamps.

--
Andrew Gabriel