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There are many factors that have a role in creating an occupational heat stress risk to workers. These factors include:
- Environmental conditions, such as air temperature, humidity, sunlight, and air speed, especially on sequential days.
- Presence of heat sourcesin the work area, such as hot ovens, hot steam kettles or furnaces.
- Level of physical activity, for example, the workload leading to body heat production.
- Use of clothing or protective gear that can reduce the body’s ability to lose excess heat.
- Individual/personal risk factors.
https://www.osha.gov/heat-exposure/hazards
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