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Inaccuracy of area sampling for measuring the dust exposure of mining machine operators in coal mines.

Authors
Kissell-F; Sacks-H
Source
Min Eng 2002 Feb; 54(2):33-39
NIOSHTIC No.
20022690
Abstract
This study examines the accuracy of area sampling for measuring the dust exposure of mining machine operators in coal mines. The specific objective of this research was to find locations where an area sampler might work better than earlier studies have indicated. The results show that fixed-location area sampling cannot accurately predict the dust exposure of a machine operator, even when the best fixed location is sought, the fixed location is quite close to the operator and the bias due to the dust concentration gradient is corrected. Industrial hygenists have known for many years that area sampling is unsuitable for measuring air containment exposures in the workplace. Near contaminant sources, the dilution air and the contaminants are not evenly mixed. Therefore, when workers are near contaminant sources, exposure measurements must be taken from the worker's breathing zone to be accurate.
Keywords
Sampling; Measurement-equipment; Dusts; Dust-sampling; Dust-samplers; Dust-particles; Air-sampling-equipment; Air-sampling-techniques; Air-sampling; Exposure-levels; Breathing-zone; Workers; Workplace-monitoring; Mine-workers; Miners; Coal-mining; Coal-miners
CODEN
MIENAB
Publication Date
20020201
Document Type
Journal Article
Fiscal Year
2002
NTIS Accession No.
NTIS Price
Issue of Publication
2
ISSN
0026-5187
NIOSH Division
PRL
Priority Area
Research Tools and Approaches: Exposure Assessment Methods
Source Name
Mining Engineering
State
PA
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