How do you connect plastic sink waste to lead please?

Plastic sink waste is often connected to lead through the Plumbing systems in older buildings, where lead pipes or fixtures may still be in use. When plastic waste pipes are installed in such systems, they can sometimes be improperly connected to lead components, leading to potential lead contamination in water. Additionally, during renovations or repairs, the disturbance of lead materials can release lead particles, which can mix with wastewater. Therefore, it's crucial to ensure proper plumbing practices to avoid any risk of lead exposure.