Is the substance toxic after the incandescent lamp is broken?

There are only two substances in the light bulb, one is visible tungsten, which is what we usually call filament, and the other is invisible argon, which also exists in the air we depend on and is harmless. Tungsten is a metal element with high temperature resistance, but after long-term use, tungsten atoms will slowly evaporate, which can be seen from the black layer of the old light bulb. This is your problem, too. These substances are harmful to human body for a long time.