Toxicity of Heavy Metals (with Symptoms, Effects, Poisoning and Treatment)! 1. Toxicity of Arsenic (As): The name arsenic is derived from the Latin word arsenicum and the Greek word arsenikon (yellow orpiment). It can also be traced to the Arabic word, Az-zernikh, meaning the orpiment from zerni-zar, the Persian word for gold. Elemental arsenic is […]