benzene
Meaning of benzene: Long term occupational exposure to benzene is a recognized cause of a specific bone marrow cancer, prompting strict workplace exposure limits.
Definition of benzene
Benzene is a colorless, volatile liquid chemical composed of a ring of six carbon atoms, used widely as a starting material in manufacturing plastics, synthetic fibers, and other industrial chemicals. It is also present as an unwanted component of gasoline, vehicle exhaust, and tobacco smoke, and it evaporates readily at room temperature, allowing it to be inhaled as a vapor.
Benzene is classified as a known human carcinogen, based on evidence linking prolonged exposure to an increased risk of certain blood cancers, particularly acute myeloid leukemia, an association identified largely through studies of workers exposed to benzene in industrial settings over extended periods.
Because of this recognized cancer risk, occupational exposure to benzene is regulated in many countries, with workplace guidelines aimed at limiting how much benzene vapor a worker may be exposed to, and similar concern applies to other sources of exposure, including tobacco smoke and vehicle emissions.
Used in a sentence
Occupational history revealed longstanding benzene exposure through the patient's work in a manufacturing facility.
Good to know
Benzene exposure is most strongly linked to acute myeloid leukemia specifically, rather than to cancer risk in general, a distinction relevant when its health effects are discussed.