Comparison of respirable-dust concentrations measured with personal gravimetric sampling instruments operated on-section and portal-to-portal

Technical Report · Sun Jan 01 00:00:00 EST 1978

DOI:https://doi.org/10.2172/5952107· OSTI ID:5952107

Tomb, T. F.; Mundell, R. L.; Jankowski, R. A.

Proposed changes in Part 70 of Title 30, Code of Federal Regulations (CFR), will require respirable dust sampling of all active working areas of a mine outby the working face. Respirable dust samples are required to be collected portal-to-portal. This report describes a study conducted to determine if area samples collected only during on-section time could be used to assess average full-shift respirable dust concentrations in outby areas of a mine where men work and travel. The results of the study showed that on-section measurements were linearly related to portal-to-portal measurements. A relationship established between portal-to-portal and calculated time-weighted average measurements showed that for respirable dust concentrations of 2.0 milligrams per cubic meter of air, portal-to-portal exposures could be estimated to within 15 percent. The results also showed that measurements representative of the intake airways may not be representative of an individual's exposure while traveling to and from the working place.

• Research Organization: Mining Enforcement and Safety Administration, Pittsburgh, PA (USA). Pittsburgh Technical Support Center
• OSTI ID: 5952107
• Report Number(s): MESA-IR-1064; ON: DE83903029
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
01 COAL, LIGNITE, AND PEAT
COAL MINES
AEROSOL MONITORING
DUSTS
SAMPLING
COMPARATIVE EVALUATIONS
EXPERIMENTAL DATA
DATA
INFORMATION
MINES
MONITORING
NUMERICAL DATA
UNDERGROUND FACILITIES
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
016000 - Coal
Lignite
& Peat- Health & Safety