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MSHA Coal Dust Samples

Published by Mine Safety and Health Administration | Department of Labor | Metadata Last Checked: January 21, 2026 | Last Modified: 2025-12-15T14:12:32.920Z
All operator and inspector dust samples taken for gravimetric samples. It includes information such as cassette numbers, date the sample was taken, initial and final weights, sample type, occupation codes related to the person taking the sample and mine information. Cassette number is the primary key for gravimetric samples. It also contains operator Continuous Personal Dust Monitor (CPDM) samples for operators as of 2/1/2016. The unique key is the CPDM file name. This dataset can be linked to the Mines dataset for further mine information.

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