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• <br /> 5.9 Noise <br /> Work around large equipment often creates excessive noise The effects of noise can <br /> include <br /> o Workers being startled, annoyed, or distracted <br /> ❑ Physical damage to the ear, pain, and temporary and/or permanent hearing <br /> loss <br /> ❑ Communication interference that may increase potential hazards due to the <br /> inability to warn of danger and the proper safety precautions to be taken <br /> If employees are subjected to noise exceeding an 8-hour, time-weighted average sound <br /> level of 90 Dba (decibels on the A-weighted scale), feasible administrative or engineering <br /> controls must be utilized In addition, whenever employee noise exposures equal or <br /> exceed an 8-hour, time-weighted average sound level of 85 Dba, employers must <br /> 10 <br /> administer a continuing, effective hearing conservation program as described in OSHA <br /> regulation 29 CFR Part 1910 95 <br /> 5.10 Ionizing Radiation <br /> Radioactive materials emit one or more of three types of harmful radiation alpha, beta, <br /> and gamma Alpha radiation has limited penetration ability and is usually stopped by <br /> clothing and the outer layers of skin Alpha radiation poses little threat outside the body, <br /> but can be hazardous if materials that emit alpha radiation are inhaled or ingested <br /> Beta radiation can cause harmful beta burns to the skin and damage the subsurface <br /> blood system Beta radiation is also hazardous if materials that emit beta radiation are <br /> inhaled or ingested Use of protective clothing, coupled with scrupulous personal <br /> hygiene and decontamination, affords good protection against alpha and beta radiation <br />' Gamma radiation easily passes through clothing and human tissue and can also cause <br /> serious permanent damage to the body Chemical-protective clothing affords no <br /> protection against gamma radiation itself, however, use of respiratory and other protective <br /> 5\BF5\sTOCKTON\H5P001] 10/15/99 5-10 <br />