♻️ap environmental science review

Heavy Metals

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

Heavy metals are metallic elements with high atomic weights that have toxic properties and can accumulate in the environment. Examples include lead, mercury, cadmium, and arsenic. These metals can enter ecosystems through various human activities and pose risks to both environmental and human health.