No this was covered in a recent thread agument.
Lead vaporising only happens at very high temperatures approaching the temp at where the lead starts to go from a liquid to a gas (happens in some furnace applications).
Lead soldering, especially with a temperature controlled soldering iron only uses enough temperature to just get the lead to transition from a solid to a liquid, the amount of lead "vaporised" into a gas is so small to be practically considered zero.
And mainly for the flux fumes it's a good idea to have a fan or extractor going anyway, you won't want to be breathing any of that stuff in when soldering.