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r <br /> t EEE <br /> Fa <br /> 102.3 ADDITIONAL HAZARD <br /> The use of Personal Protective Equipment of the types <br /> commonly used for hazardous waste work can place stress. on the <br /> 6 body, One common problem with the use of personal protective <br /> equipment, especially in hat environments, is heat stress. <br /> Protective clothing can cause excessive sweating and can prevent <br /> the body from properly regulating body temperature. <br /> 10i:.4 TYPES OF HEAT MILEES <br /> IHeat stress is the aggregate of environmental and <br /> it <br /> physical work factors that constitute the total heat load imposed <br /> on the body. The environmentalfactors of heat stress are the air <br /> temperature, radiant heat" exchange, air movement, and water vapor <br /> F-� pressure, Physical work contributes to the total heat stress of � <br /> � t the job by producing metabolic heat in the body in proportion .to <br /> the intensity of the work. The amount and type of clothing also <br /> i <br /> , •" affect the heat stress. <br /> r Heat strain is the series of physiological responses to <br /> .� heat stress. When the strain is excessive for the e):posed <br /> individual, a feeling of diocomfort or distress may result; and, <br /> finally, a heat disorder may ensue. The severity of strain will <br /> depend not only on the magnitude of the prevailing stress, but also <br /> cn the age, physical fitness, degree of acclimatization, and <br /> dehydration of the worker. <br /> Heat disorder is a general term used to describe one or <br /> more of the following heat-related disabilities or illnesses: <br /> a ' eat C a+Es - painful intermittent spasms of the <br /> voluntary muscles following hard physical work in a hot <br /> L� D797.8/72 ES-102-2 November 1990 <br />