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Document ID (ISN)111922
CIS number 11-0566
ISSN - Serial title 0271-3586 - American Journal of Industrial Medicine
Year 2010
Convention or series no.
Author(s) Jay O., Kenny G.P.
Title Heat exposure in the Canadian workplace
Bibliographic information 2010, Vol.53, p.842-853. 76 ref.
Abstract This review article discusses the potential impact of heat waves on the health and well-being of the Canadian workforce. Increasingly, industries rely on available technology and information to ensure the safety of their workers. Current Canadian labour codes apply the guidelines recommended by the American Conference of Governmental Industrial Hygienists (ACGIH) that are Threshold Limit Values (TLVs) based upon Wet Bulb Globe Temperature (WBGT). The TLVs are set so that core body temperature of the workers supposedly does not exceed 38.0°C. Legislation in most Canadian provinces also requires employers to install engineering and administrative controls to reduce the heat stress risk of their working environment should it exceed the levels permissible under the WBGT system. There are however severe limitations using the WGBT system because it only directly evaluates the environmental parameters and merely incorporates personal factors such as clothing insulation and metabolic heat production through simple correction factors for broadly generalized groups. An improved awareness of the strengths and limitations of TLVs and the WGBT index can minimize preventable measurement errors and improve their utilization in workplaces. Work is on-going, particularly in the European Union to develop an improved individualized heat stress risk assessment tool.
Descriptors (primary) Canada; hot workplaces; exposure evaluation; limitation of exposure
Descriptors (secondary) work efficiency; responsibilities of employers; WBGT index; threshold limit values; legal aspects
Document type D - Periodical articles
Subject(s) Heating, ventilation and climate
Broad subject area(s) Physical hazards
Browse category(ies) Heat and cold