ARCHIVED REPORTS XR0002703 - Laserfiche WebLink

Home Browse Search

A hydrocarbon vapor analyzer will be used to measure real time breathing zone concentration for comparison with the 100 ppmv working limit. When a persistent level of 100 ppmv is observed, appropriate respirators will be donned and other vapor measurements will be made. If hydrocarbon vapors exceed 1000 ppmv or 10 ppm benzene, work will be stopped. The field crew will be instructed to stay up wind and methods will be applied to subdue fugitive vapor emissions such as sprinkling soil with water, or use of a copus blower. The Site Safety Officer will make such determinations. If LEL is >10% in or around the boring, work must stop and not commence until determined safe and\or the LEL drops below <10%. If' oxygen levels in the immediate work area are < 19 .5%, work must stop until determinate safe and\or levels are >19 .5%. S. Symptoms of Acute overexposure Stoddard solvents and vapors maybe irritating to the skin, eyes and respiratory tract. The vapors may effect the central nervous system and may cause nasal and respiratory irritation, nausea, fatigue, headaches and dizziness, and in the extreme death. Oxygen Deficiency: • May cause dizziness. Heat Stress and Noise: A hazard exists when individuals are required to work in warm temperatures, particularly while wearing impervious protective clothing. When the ambient air temperature exceeds 65 degrees, heat stress may become problem. If these conditions are encountered, the following precautions on the next will be taken: * During day-to-day field work, the on-site supervisor will be alert for the signs and symptoms of heat exposure. Field workers will be observed for the following signs and symptoms of heat stress: * profuse sweating, or complete lack of sweating , * skin color change, * increased heart rate, * body temperatures in excess of 100 degrees as measured by thermometers, and II 5