Which of the following is a danger from lead-tin solder?

Lead is a toxic heavy metal that can easily transfer from the surface of solder to your hands, and subsequently to your food, drinks, or directly to your mouth. Ingesting lead over time accumulates in the body and causes severe neurological and physical health issues. Washing your hands thoroughly with soap and water after a soldering session is a simple and highly effective way to prevent this dangerous contamination. Lead-tin solder does not mysteriously disintegrate under high voltages, nor does RF energy convert the lead into a poisonous gas. While soldering does produce fumes, those fumes are from vaporizing flux, not the lead itself, which does not boil at standard soldering iron temperatures.