Correlations between measurements with RAM-1 and gravimetric samplers on longwall shearer faces

Journal Article · Sat Sep 01 04:00:00 EDT 1984 · Am. Ind. Hyg. Assoc. J.; (United States)

DOI:https://doi.org/10.1080/15298668491400340· OSTI ID:6149055

Page, S J; Jankowski, R A

Simultaneous RAM-1 real-time aerosol monitor and gravimetric personal sampler respirable dust measurements were made by the US Bureau of Mines at 2 locations adjacent to a moving shearer on longwall faces. These locations were 15-20 ft on the ventilation intake side of the shearer headgate drum, and at the shearer mid-point, between the 2 operators. Despite the fact that RAM-1 monitors were laboratory calibrated to give equivalent readings, underground readings were often lower, particularly at the intake side of the shearer. The RAM gravimetric ratio of all readings was 0.53 at the intake position and 0.75 at the midpoint position for all data. The difference between the RAM and gravimetric dust readings is attributed to a combination of factors such as ambient air velocity and cyclone orientation.

• OSTI ID: 6149055
• Journal Information: Am. Ind. Hyg. Assoc. J.; (United States), Journal Name: Am. Ind. Hyg. Assoc. J.; (United States) Vol. 45:9; ISSN AIHAA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
AEROSOL MONITORING
AIR POLLUTION MONITORING
AIR SAMPLERS
COAL MINERS
COAL MINING
COMPARATIVE EVALUATIONS
CUTTER LOADERS
DUSTS
EQUIPMENT
LONGWALL MINING
MINERS
MINING
MINING EQUIPMENT
MONITORING
PERFORMANCE TESTING
PERSONNEL
PERSONNEL MONITORING
RADIATION MONITORING
REAL TIME SYSTEMS
SAMPLERS
SAMPLING
SHEARER LOADERS
TESTING
UNDERGROUND MINING