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Pneumoconiotic agents: Percent of exposures exceeding designated occupational exposure limits by MSHA metal/nonmetal district and state, MSHA samples, 1979-2003


- indicates incalculable field.    PEL - permissible exposure limit    REL - recommended exposure limit    MSHA

Note: See appendices for source description, methods, and agents.

Source: MSHA metal/nonmetal mine data.

Reference Number: 2008-505

Date Posted: June 2008

Archived Version