A hazard is the intrinsic property of a substance (or of a situation) that can cause harm: flammability, corrosiveness, toxicity. The risk is the likelihood that harm actually occurs, and its severity, under the given conditions of use: it depends on the hazard and on the exposure (quantity, concentration, duration, route, protection).
Chemistry · Glossary
What is Hazard and risk?
Also known as: hazard · risk