Author: Winthrop F. WattsPublisher:
ISBN:
Category : Mine dusts
Languages : en
Pages : 36
Book Description
Analysis of Data on Respirable Quartz Dust Samples Collected in Metal and Nonmetal Mines and Mills
Author: Winthrop F. WattsPublisher:
ISBN:
Category : Mine dusts
Languages : en
Pages : 36
Book Description
Respirable Dust Levels in Coal, Metal, and Nonmetal Mines
Author: Winthrop F. WattsPublisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 32
Book Description
In 1980 the Bureau of Mines developed the Mine Inspection Data Analysis System (MIDAS). MIDAS is a computerized, industrial hygiene data base capable of statistically analyzing environmental data collected in coal and noncoal mines and mills by Mine Safety and Health Administration (MSHA) inspectors or mine operators. The objectives of this report are to describe the current contents of MIDAS, to report analyses of coal and noncoal mine respirable dust samples collected by MSHA inspectors and to evaluate the proposed change in the metal and nonmetal respirable dust standard from a formula based upon the percentage of quartz identified in the sample to 100 μg/m3 of respirable quartz. Based on samples collected by MSHA inspectors, changing the noncoal respirable dust standard would result in 4 pct fewer samples with dust concentrations exceeding the standard. Analysis of respirable coal dust data collected by MSHA inspectors showed that mines with longwall plows or shears had the highest geometric mean concentrations (1.64 and 1.29 mg/m3, respectively). Mine operations using continuous rippers out-numbered longwall mine operations about 10 to 1 and had a geometric mean concentration of 0.66 mg/m3.
Information Circular
Author: Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 52
Book Description
Evaluation of TEOM Dust Monitor
Author: Kenneth L. WilliamsPublisher:
ISBN:
Category : Mine dusts
Languages : en
Pages : 710
Book Description
Monthly Catalog of United States Government Publications
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 974
Book Description
Monthly Catalogue, United States Public Documents
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1464
Book Description
An Introduction to the Mine Inspection Data Analysis System (MIDAS)
Author: Winthrop F. WattsPublisher:
ISBN:
Category : MIDAS (Computer system)
Languages : en
Pages : 52
Book Description
This report describes the Mine Inspection Data Analysis System (MIDAS) developed by the Bureau of Mines to analyze the records of industrial hygiene samples collected by the Mine Safety and Health Administration (MSHA) in metal and nonmetal mines. MIDAS is the first system capable of sorting, editing, analyzing, and reporting these data. It is also the first system designed to be used by a number of Government agencies. At present the system contains 225,000 personal and area samples for 61 contaminants in 45 industries. The records date from 1974 to early 1980, and MSHA plans to provide yearly updates to the system. This report presents preliminary analyses of dust exposures and discusses the potential uses and limitations of these data. Analysis of the dust data for 1978 and 1979 showed that bagging had the highest percentage of dust overexposure. Morn than 40 pct of the 1,536 respirable quartz dust, total nuisance dust, and total silica dust samples exceeded the MSHA exposure limit. Other dusty occupations are ranked according to their percentage of overexposure.
Diesels in Underground Mines
Author: Results from the National Occupational Health Survey of Mining (NOHSM)
Author: Mark F. GreskevitchPublisher:
ISBN:
Category : Mine safety
Languages : en
Pages : 228
Book Description
Author: