Some well-known occupational carcinogens include: - Asbestos: Used in construction and manufacturing, it can cause lung cancer and mesothelioma. - Benzene: Found in chemical and petroleum industries, it is linked to leukemia. - Formaldehyde: Used in various industries, it is associated with nasal and nasopharyngeal cancers. - Arsenic: Found in mining and smelting industries, it is linked to skin, lung, and liver cancers. - Silica: Common in mining, construction, and stone-cutting, it is linked to lung cancer.