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BACKGROUND

There is currently no specific Occupational Safety and Health Administration (OSHA) Standard for heat stress. However, OSHA recognizes that jobs involving operations in hot environments have the potential to induce heat stress in employees. These operations include those which involve radiant heat sources, high humidity, direct contact with hot objects, or strenuous activities. The National Institute of Occupational Safety and Health (NIOSH) the American Conference of Governmental Industrial Hygienists (ACGIH) and the Environmental Protection Agency (EPA) have promulgated recommended safety guidelines for working in hot environments. As guidance for employers of those individuals involved in these operations, OSHA has included a section on heat stress in the OSHA Technical Manual which references many of the guidelines put forth by NIOSH and ACGIH.

The effects of heat can range from a mild annoyance, such as heat rash, to death from heat stroke. Specific signs and symptoms of heat stress are described in Appendix A. With proper replacement of fluids and adherence to proper work/rest regimens, the adverse effects of working during hot weather can be prevented.

A person's risk of developing an adverse effect from heat increases with ambient temperature and humidity, increased level of work, and increased amount of clothing. Examples of MSU employees who may be at risk of developing heat related effects include, but are not limited to:

  • Grounds Personnel
  • University Farms Personnel
  • Greenhouse Personnel
  • Physical Plant (for example: personnel working in steam tunnels)
  • Power Plant (for example: personnel who work in the vicinity of boilers)
  • Employees required to wear protective clothing

Certain personal lifestyle factors make a person more susceptible to the adverse effects of heat. These factors are:

  1. lack of physical fitness;
  2. lack of acclimatization to heat - increased risk during initial days of a heat wave;
  3. dehydration- someone who is taking a water pill, or has been having diarrhea, or drank a large quantity of alcohol the day before;
  4. obesity;
  5. acute or chronic disease such as, infection, diarrhea;
  6. sunburn

Heat Hazard Assessment

Heat Stress Manual Table of Contents

 

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