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4.3 <br />4.4 <br />• Employ over -current devices <br />• Use a Ground Fault Circuit Interrupter (GFCI) <br />NOISE HAZARDS <br />Types)/Source: <br />• Heavy Equipment <br />Qualified Exposure Risk: Moderate <br />Primary "Control": <br />• Ear Plugs <br />Hazards: Exposure to high levels of noise, both chronic and acute, can lead to <br />different types of reactions. Acute (impulse) noise, such as noise associated <br />with work performed in proximity to heavy equipment and moving traffic, <br />can afflict a worker with a temporary loss of hearing at certain frequencies <br />associated with the equipment being used. However, chronic exposure to this <br />noise may eventually cause the hearing acuteness to be permanently and <br />irreversibly changed. The change may be subtle and occur over a period of <br />time. <br />Permanent noise -induced hearing loss is attributed to the intensity and <br />frequency distribution of the noise, the time pattern and duration of <br />exposure, and individual susceptibility. Sound levels (noise) are measured in <br />dBs. The OSHA Action Level for noise exposure is 85 dB. It is not expected <br />that the noise level generated during most fieldwork will exceed this action <br />level. <br />Controls :Ordinarily, acute hearing loss is reversible when you remove <br />yourself from the exposure. After a short period of time (less than a day), the <br />hearing generally returns to normal. Earplugs should be available on-site for <br />hearing protection. If you feel it is necessary to shout to be heard, then <br />hearing protection such as earplugs or earmuffs or muffled equipment must <br />be used. <br />BIOLOGICAL HAZARDS <br />Types)/Source: <br />• Poisonous plants/ animals. <br />COSTEP.A WASTE & ENVIRONMENTAL, INc. 15 MAY 4, 2021 <br />