Linked from
The 19 pages that link to Arsenic, each with the reason it gives.
LewisiteNarrower topic: Lewisite’s systemic poisoning reflects the toxicity of its arsenic content.
OrpimentNarrower topic: Arsenic is the toxic element that gives orpiment its hazardous character.
RealgarNarrower topic: Arsenic makes up most of realgar’s formula and drives its toxicity.
Arsenic trioxideNarrower topic: Arsenic trioxide is one of arsenic’s common oxide compounds.
Paris greenNarrower topic: Arsenic in Paris green makes ingestion and exposure hazardous.