Increased Mortality from Lung Cancer and Bronchiectasis in Young Adults After Exposure to Arsenic in Utero and in Early Childhood
The International Agency for Research on Cancer (IARC) has classified arsenic in drinking water as a group 1 carcinogen that causes skin cancer, bladder cancer, and lung cancer (IARC 2002).? Although it is known that inhalation of arsenic may cause lung cancer, the findings of increased lung cancer mortality after ingestion in drinking water were unexpected because all other known lung carcinogens act via inhalation.? In fact, lung cancer is the main long-term cause of death from ingesting arsenic in drinking water (NRC 2001).
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