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Heat Strain and Hydration Status of Surface Mine Blast Crew Workers
Objective: Dehydration and symptoms of heat illness are common among the surface mining workforce. This investigation aimed to determine whether heat strain and hydration status exceeded recommended limits. Methods: Fifteen blast crew personnel operating in the tropics were monitored across a 12-hour shift. Heart rate, core body temperature, and urine-specific gravity were continuously recorded. Participants self-reported fluid consumption and completed a heat illness symptom inventory. Results: Core body temperature averaged 37.46 ± 0.13°C, with the group maximum 37.98 ± 0.19°C...
Occupation and environmental heat-associated deaths in Maricopa County, Arizona: a case-control study
Background Prior research shows that work in agriculture and construction/extraction occupations increases the risk of environmental heat-associated death. Purpose To assess the risk of environmental heat-associated death by occupation. Methods This was a case-control study. Cases were heat-caused and heat-related deaths occurring from May-October during the period 2002–2009 in Maricopa County, Arizona. Controls were selected at random from non-heat-associated deaths during the same period in Maricopa County. Information on occupation, age, sex, and race-ethnicity was obtained from death...

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