---
title: "Hazardous Waste — AP Enviro Definition & Exam Guide"
description: "Hazardous waste is any discarded material that threatens human health or the environment. Learn how it ties to landfills, e-waste, and leachate in APES Unit 8."
canonical: "https://fiveable.me/ap-enviro/key-terms/hazardous-waste"
type: "key-term"
subject: "AP Environmental Science"
---

# Hazardous Waste — AP Enviro Definition & Exam Guide

## Definition

Hazardous waste is any material that poses a substantial threat to human health or the environment due to its chemical properties. It can be in liquid, solid, or gaseous form and may come from industries, households, or other sources.

## Related Study Guides

- [8.9 Solid Waste Disposal](/ap-enviro/unit-8/solid-waste-disposal/study-guide/x0oYfNWgX71t8XELmhY2)

## Review

### Related Terms

- Toxic Substances: Refers to chemicals that can cause harm when exposed to living organisms.
- E-waste (Electronic Waste): Includes discarded electronic devices like computers and cell phones that contain hazardous components.
- Biomedical Waste: Consists of infectious materials generated by healthcare facilities like hospitals or clinics.