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Document ID (ISN)109069
CIS number 09-28
ISSN - Serial title 0815-6409 - Journal of Occupational Health and Safety - Australia and New Zealand
Year 2007
Convention or series no.
Author(s) Miller V., Bates G.
Title Hydration of outdoor workers in north-west Australia
Bibliographic information Feb. 2007, Vol.23, No.1, p.79-87. Illus. 14 ref.
Abstract The consequences of work environmental heat stress include reduced safety due to impaired concentration, decreased work capacity and heat-related illness. Maintaining adequate hydration is the most important measure to counteract the effects of thermal stress. In this study, the hydration of groups of outdoor workers at opencast mine sites and related facilities was assessed. Urine specific gravity was used as an indication of hydration levels. Fluid intake was monitored and fluid balance studies were carried out to assess the rate of sweat loss. The majority of workers were found to be inadequately hydrated. Most were hypohydrated at the commencement of the shift, and fluid intakes were, in general, well below those required to replace fluid losses, let alone improve hydration. Recommendations are given for maintaining adequate hydration of workers in hot conditions.
Descriptors (primary) Australia; outdoor work; mining industry; hydration; opencast work; heat load
Descriptors (secondary) sweat secretion during effort; dehydration; heat stress assessment; hot workplaces; drinking water
Document type D - Periodical articles
Country / State or ProvinceAustralia
Subject(s) Heating, ventilation and climate
Occupational physiology
Mines and quarries
Broad subject area(s) Physical hazards
Occupational medicine, epidemiology
Browse category(ies) Mining and quarrying
Heat and cold