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Exposure of Underground Miners to Diesel Exhaust

MSHA is requesting information and data on approaches to control and monitor miners' exposures to diesel exhaust.

Epidemiological studies by the National Institute for Occupational Safety and Health (NIOSH) and the National Cancer Institute (NCI) have found that diesel exhaust exposure increases miners' risk of death due to lung cancer. In June 2012, the International Agency for Research on Cancer (IARC) classified diesel exhaust as a human carcinogen. Because of the carcinogenic health risk to miners from exposure to diesel exhaust and to prevent material impairment of miners' health, MSHA is reviewing the Agency's existing standards and policy guidance on controlling miners' exposures to diesel exhaust to evaluate the effectiveness of the protections now in place to preserve miners' health.

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