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A task-specific assessment of swine worker exposure to airborne dust.

Authors
O'Shaughnessy-PT; Donham-KJ; Peters-TM; Taylor-C; Altmaier-R; Kelly-KM
Source
J Occup Environ Hyg 2010 Jan; 7(1):7-13
NIOSHTIC No.
20036309
Abstract
A task-based analysis of personal airborne dust exposures was performed in two swine confinement facilities used to house sows and their litters. Airborne particulate levels were assessed during summer, winter, and spring. Personal aerosol measurements of workers were made with a photometer every 15 sec and corrected to compare with an integrated concentration measurement made with a co-located IOM inhalable dust sampler. Task type and time period were recorded by the workers over an 8-hr work shift. There was a significant difference in dust concentrations between seasons (p < 0.001), with winter months providing the highest levels (geometric mean = 3.76 mg/m(3)). The application of a general linear model of log-transformed task concentrations relative to site, season, and task demonstrated significant differences (P < 0.001) among all three covariates. Tasks performed near moving animals, especially the weaning process, resulted in the greatest concentrations. These results indicate the need to evaluate the concentration levels for separate tasks during multi-task work shifts, such as swine rearing, to optimize efforts to minimize exposures by focusing on high-concentration tasks.
Keywords
Aerosol-particles; Agricultural-industry; Agricultural-processes; Agricultural-workers; Agriculture; Airborne-dusts; Airborne-particles; Animal-husbandry-workers; Animals; Exposure-assessment; Exposure-levels; Exposure-methods; Farmers; Inhalation-studies; Mathematical-models; Qualitative-analysis; Sampling; Sampling-methods; Statistical-analysis; Work-environment; Worker-health; Work-performance; Workplace-monitoring Workplace-studies; Work-practices; Author Keywords: aerosol photometers; agricultural production; task-based analysis
Contact
Patrick O'Shaughnessy, The University of Iowa, Occupational and Environmental Health, 100 Oakdale Campus, 137 IREH, Iowa City, IA 52242
CODEN
JOEHA2
Publication Date
20100101
Document Type
Journal Article
Email Address
patrick-oshaughnessy@uiowa.edu
Funding Type
Cooperative Agreement
Fiscal Year
2010
NTIS Accession No.
NTIS Price
Identifying No.
Cooperative-Agreement-Number-U50-OH-007548
Issue of Publication
1
ISSN
1545-9624
Source Name
Journal of Occupational and Environmental Hygiene
State
NE; IA
Performing Organization
University of Iowa
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