Reny: I noticed you bought a new cell phone. Did you do a trade-in?
Justin: No, I didn’t. I keep the old one.
Reny: Why?
Justin: Because I don’t want my personal data to spread and get misused.
Reny: That makes sense. But don’t you understand that your old cell phone is an e-waste?
Justin: Is it? I don’t know. Please tell me what e-waste is and its impacts are.
Fenny: E-waste, or electronic waste refers to discarded electronic devices and components, which have been no longer used or have reached the end of their useful life. You know the pace of technological innovation continues to accelerate, and people continually upgrade their devices to newer models. Many of these discarded devices contain toxic substances such as lead, mercury, and cadmium, of course they bring harmful effects on the environment and people's health.
Justin: Unbelievable! I never think it is a very serious matter.
Reny: It is, indeed. You’d better dump your unused electronic devices in a safe place.
Justin: It’s good to consider, thanks.
What are they talking about?