Lead does not vaporize at the temperatures being soldered, there is basically zero risk of breathing it in. However, when soldering you will end up with little

Lead does not vaporize at the temperatures being soldered, there is basically zero risk of breathing it in. However, when soldering you will end up with little balls and blobs of solder as waste. Don't just throw them in the trash. These should be collected and disposed of properly, as hazardous waste so that they don't end up in a landfill polluting your grandkids' water supply.