Radon exposure is known to cause

ETIOLOGY OF CANCERS OF LUNG ■ Chromium, ■ Nickel, other metals ■ Tobacco smoking, ■ Ionising radiation (uranium) ■ Radon. ■ Asbestosis (May predispose to Bronchogenic carcinoma, mesothelioma, gastrointestinal cancer). Suspected Carcinogens