Langer A M
Environ Health Perspect. 1974 Dec;9:229-33. doi: 10.1289/ehp.749229.
An increased gastrointestinal cancer risk is associated with occupational exposure to asbestos fiber. Examination of tissues obtained from extrapulmonary organs of exposed workmen demonstrates the presence of asbestos fibers and bodies. The amount of fiber present in these tissues is many magnitudes less than encountered in the lung tissues from the same individuals. Ingestion of asbestos fiber in some environmental instances may approach in magnitude the amount resulting from occupational exposure. Disease factors are discussed.
职业接触石棉纤维会增加患胃肠道癌的风险。对接触石棉的工人肺外器官获取的组织进行检查,发现存在石棉纤维和石棉小体。这些组织中的纤维量比同一个体肺组织中的纤维量少很多个数量级。在某些环境情况下,摄入的石棉纤维量在数量上可能接近职业接触所产生的量。文中讨论了疾病因素。