NIOSH Testimony on mine shift atmospheric conditions; respirable dust sample by L. Rosenstock, July 6, 1994.
NIOSH 1994 Jul; :1-10
The purpose of the hearing was to receive relevant comments and data on a joint MSHA and NIOSH notice concerning the accurate measurement of the average concentration of respirable dust to which each miner in the active workings of a coal mine is exposed to over a single shift. The notice, published in the Federal Register on February 18, 1994, announced a new finding that a single shift sample will, after applying valid statistical techniques to such measurement, accurately represent such atmospheric conditions during such shift. This notice also announce the intent to rescind the 1971 finding. Comments received thus far centered on two issues. First, comments received reflect some confusion over the MSHA and NIOSH decision to rescind the 1971 notice of finding. MSHA and NIOSH have concluded that the statistical analysis and the 1971 finding itself were not germane to the Congressional intent. The analysis did not address the accuracy of a single full shift measurement in representing atmospheric conditions during the shift on which it was taken. The second issue concerns the accuracy of single full shift measurements.
NIOSH-Author; NIOSH-Testimony; Rosenstock-L; Dust-exposure; Respiratory-system-disorders; Lung-irritants; Coal-mining; Lung-disease; Occupational-exposure; Air-quality; Air-sampling
NTIS Accession No.