The document discusses e-waste, which refers to old electronic equipment like TVs, computers, phones, etc. that have reached the end of their useful life. E-waste is hazardous because electronics contain toxic heavy metals like lead and mercury as well as hazardous chemicals. When e-waste ends up in landfills, these materials can leach into groundwater and soil, and burning e-waste releases toxins into the air. The document outlines individual and collective responsibilities in properly disposing of e-waste through authorized collection and recycling.