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Factors associated with heat strain among workers at an aluminum smelter in Texas.

Authors
Dang-BN; Dowell-CH
Source
J Occup Environ Med 2014 Mar; 56(3):313-318
NIOSHTIC No.
20043736
Abstract
OBJECTIVES: To determine the prevalence of heat strain and factors associated with heat strain among workers at an aluminum smelter in Texas. METHODS: Continuous core body temperature (Tc), heart rate, and pre- and postshift serum electrolytes, and urine specific gravity were measured, and symptom questionnaires were administered. RESULTS: Most participants (54%) had 1 or more signs of heat strain. Unacclimatized participants were significantly more likely to exceed the American Conference of Governmental Industrial Hygienists-recommended Tc than acclimatized participants (88% vs 20%; P < 0.01). Participants who exceeded the Tc for their acclimatization status and/or exceeded the recommended sustained peak HR had a significantly lower body mass index than those who did not (27.6 vs 31.8 and 28.4 vs 32.4, respectively; P = 0.01). CONCLUSIONS: Employees and management need to strictly adhere to a heat stress management program to minimize heat stress and strain.
Keywords
Smelters; Smelting; Heat; Heat-exposure; Heat-stress; Hot-environments; Hot-metal-processes; Aluminum-foundries; Biological-monitoring; Body-temperature; Electrolytes; Electrolytic-analysis; Questionnaires; Urinalysis; Heart-rate; Heat-acclimatization; Acclimatization; Body-weight; Heat-regulation; Industrial-factory-workers
Contact
Chad H. Dowell, MS, CIH, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 1600 Clifton Road NE, Atlanta, GA 30333
CODEN
JOEMFM
CAS No.
7429-90-5
Publication Date
20140301
Document Type
Journal Article
Email Address
cdowell@cdc.gov
Fiscal Year
2014
NTIS Accession No.
NTIS Price
Identifying No.
M022014
Issue of Publication
3
ISSN
1076-2752
NIOSH Division
DSHEFS; OD
Priority Area
Services
Source Name
Journal of Occupational and Environmental Medicine
State
OH; GA; TX
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