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HEAT STRESS AND HEAT STRESS MONITORING <br /> Heat is one of the most common (and potentially serious) illnesses at hazardous waste <br /> sites where PPE is worn; therefore, regular monitoring and other preventive precautions <br /> are vital. Shelter from the sun will be provided during rest periods. If necessary, work <br /> will be performed during the cooler night hours. Table A lists the signs and symptoms <br /> of heat stress. Initial work schedules will be approximately 90 minutes of work <br /> followed by 15 minutes of rest. These schedules will be modified based on the <br /> following monitoring stated in NIOSH, et al. (1985). <br /> Heart rate. Heart rate will be measure during a 30-second period as early as possible <br /> in the rest period. If the heart rate exceeds 110 beats per minute at the <br /> beginning of the rest period, the next work cycle will be shortened by one-third <br /> without changing the rest period. If the heart rate still exceeds 110 beats per <br /> minute at the next rest period, the following work cycle will be shortened by <br /> one-third. <br /> Oral temperature. A clinical thermometer (three minutes under the tongue) or similar <br /> device will be used to measure the oral temperature at the end of the work <br /> period (before drinking). If oral temperature exceeds 99.60 (37.6° C), the next <br /> work cycle will be reduced by one-third without changing the rest period. If <br /> oral temperature still exceeds 99.6° F (37.36°Q at the beginning of the next rest <br /> period, the following work cycle will be shortened by one-third. A worker will <br /> not be permitted to wear a semi-permeable or impermeable garment when his <br /> or her oral temperature exceeds 100.6° F (38.10 Q. <br /> Body water loss, is possible. Weight will be measured on a scale accurate to X0.25 Ib <br /> at the beginning and end of each work day to see if enough fluids are being <br /> taken to prevent dehydration. The body water loss should not exceed 1.5 <br /> percent total body weight loss in a work day. <br /> Aft Avalon Environmental Consultants 9627-001-6 <br /> Ire Kashmar Singh Joes Truck Plaza <br /> January 9, 2001 Lathrop,California <br />