[throwaway2037]

This is an interesting point. Does anyone know how much lead would be in a 21 inch monitor?

[RetroSpark]

According to [0], about 1.2 kg (2.6 lbs). Surprisingly this is mostly in the neck and funnel of the tube - the screen itself uses different metals because lead would affect its optical performance.

[0] https://www.sciencedirect.com/science/article/pii/S187802961...