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Variation of exposure between workers in homogeneous exposure groups.

Authors
Rappaport-SM; Kromhout-H; Symanski-E
Source
Am Ind Hyg Assoc J 1993 Nov; 54(11):654-662
NIOSHTIC No.
00217494
Abstract
A study was conducted on variations in the levels of occupational exposures in homogeneous exposure groups (HEGs) sorted based upon job title, location, and other features of the work environment. Data obtained from studies conducted by industrial hygienists were used to assign HEGs or to identify already established HEGs. Each HEG was then analyzed to see whether an analysis of variance model could be used to estimate the components of variance. Only about 20% of the HEGs were found to be uniformly exposed and an equal number showed a high degree of variation between workers in the group. The work factors typically used to assign HEGs were found to be only marginally related to the variation seen between workers in a group and specific features of each job such as the mix of tasks performed and the work practices of the individual workers were responsible for most of the variation. The authors conclude that industrial hygienists should not use observational schemes to assign workers to exposure groups but should use statistical sampling methods to estimate variance components.
Keywords
NIOSH-Publication; NIOSH-Cooperative-Agreement; Occupational-exposure; Analytical-methods; Industrial-hygiene; Statistical-analysis; Industrial-health-programs; Exposure-levels
CODEN
AIHAAP
Publication Date
19931101
Document Type
Journal Article
Funding Type
Cooperative Agreement
Fiscal Year
1994
NTIS Accession No.
NTIS Price
Identifying No.
Cooperative-Agreement-Number-U60-CCU-902886
Issue of Publication
11
ISSN
0002-8894
Source Name
American Industrial Hygiene Association Journal
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