♻️ap environmental science review

Arsenic

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

Arsenic is a toxic chemical element that occurs naturally in the Earth's crust and can contaminate water sources. It poses serious health risks when ingested or inhaled.