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exposure action value
An Exposure Action Value (EAV) or Action Value (AV) is a limit set on occupational exposure to noise where, when those values are exceeded, employers must take steps to monitor the exposure levels. These levels are measured in decibels. The American Occupational Safety and Health Administration (OSHA) set the EAV to 85 dB(A). When the eight-hour time-weighted average (TWA) reaches 85 dB(A), employers are required to administer a continuing, effective hearing conservation program. The program consists of monitoring, employee notification, observation, an audiometric testing program, hearing protectors, training programs, and record keeping requirements.
== Purpose ==
The purpose of the EAV is to ensure that employees are not suffering from high levels of noise exposure. OSHA requires employers to take steps to reduce exposure levels when the TWA reaches 90 dB(A). The EAV is to ensure that the exposure levels do not reach 90 dB(A) or more. It is also to ensure that employees are not experiencing noise-induced hearing loss.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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