Is soldering iron harmful to the body?
Some netizens complained that he had been using an electric soldering iron to solder in a PCB factory for a whole year, and he started to feel uncomfortable and his abdomen was a little bloated. Is the solder poisonous? Could it be lead poisoning?
In fact, this depends on whether the soldering iron soldered at work is leaded or lead-free, and blood lead needs to be checked regularly. If it does not exceed the standard, there will be no problem at all. Is the solder toxic?
Normally, if protection and raw material procurement are carried out in accordance with national standards, soldering will not cause major harm. Nowadays, almost all lead-free products are used.
Lead is a toxic substance. Excessive absorption by the human body can cause lead poisoning. Ingestion of low doses may affect human intelligence, nervous system and reproductive system.
The alloy of tin and lead is commonly used solder. It has good electrical conductivity and a low melting point. Therefore, it has been used in welding processes for a long time. Its toxicity comes mainly from lead. The lead fume produced by soldering can easily lead to lead poisoning.
Metal lead may produce lead compounds, all of which are classified as hazardous substances. In the human body, lead can affect the central nervous system and kidneys.
The environmental toxicity of lead to some organisms has been widely documented. A blood lead concentration of more than 10 μg/dl will produce sensitive biochemical effects. If long-term exposure causes the blood lead concentration to exceed 60~70 μg/dl, clinical lead poisoning will occur.
Anything containing lead is definitely toxic. Let’s not talk about whether soldering has a big impact on the body. Even ordinary metals can be poisonous if there is too much. When soldering, there will be smoke, which contains an element that is harmful to the body.
It is best to wear a mask when working, but it will still have some impact. Of course, if you can use lead-free solder wire, it will be much safer than lead-based solder wire.
