• J Formos Med Assoc · Jul 2024

    Environmental asbestos exposure from nephrite jade mining and lung cancer.

    • Hsiao-Yu Yang, Sugio Furuya, and Naoki Toyama.
    • Institute of Environmental and Occupational Health Sciences, National Taiwan University College of Public Health, 10055, Taipei, Taiwan; Department of Public Health, National Taiwan University College of Public Health, 10055, Taipei, Taiwan; Department of Environmental and Occupational Medicine, National Taiwan University Hospital, 100225, Taipei, Taiwan; Population Health Research Center, National Taiwan University, Taiwan. Electronic address: hyang@ntu.edu.tw.
    • J Formos Med Assoc. 2024 Jul 1; 123 (7): 796801796-801.

    BackgroundNephrite is an asbestos mineral composed of tremolite and actinolite. Fengtian is a community where nephrite was mined between 1970 and 1980 and asbestos was mined between 1960 and 1985. The lung cancer risk to the surrounding community is unknown.AimsTo analyse the trend of lung cancer caused by environmental contamination from nephrite mining.MethodsWe conducted a field survey of nephrite mines and tracked new cases of lung cancer from 1980 to 2019. We calculated the age-standardized incidence rates (ASIRs) and applied join-point regression to examine the lung cancer trend. We assessed the age effect, period effect, and birth cohort effect on lung cancer risk.ResultsThe nephrite mines were contaminated with chrysotile and tremolite/actinolite asbestos. A total of 278 new cases of lung cancer were reported during the study period. There was an apparent age effect and a slight period effect for lung cancer. After adjustment for the age and period effects, the birth cohort born between 1970 and 1980 during the period of nephrite mass production had the highest relative risk compared with other birth cohorts. The ASIR of lung cancer increased significantly from 1980 to 2010 (the annual percentage change = 6.8 %, 95 % CI: 4.0-9.7 %, P < 0.01) and then decreased 30 years after the cessation of nephrite jade mining.ConclusionNephrite mining increases the risk of lung cancer in nearby communities.Copyright © 2024 Formosan Medical Association. Published by Elsevier B.V. All rights reserved.

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