To develop managing guidance of occupational noise exposure for metal working facility, we have studied about drafting contour map of noise exposure, methods of noise assessment and actual calculation method of time weighted noise exposure.
Therefore we have suggested that contour maps of noisy workplace are very important for controlling metal working fluid facility and two kinds of noise assessment method, so called, personal and static exposure are necessary to avoid argument between workers and managing group. Finally we would like recommend that the Korean specfication of noise exposure should be modified to protect ONIHL(occupational noise induced hearing loss).

• 이내우(부경대학교 안전공학과) | Nae Woo Lee
• 허현철(부경대학교 안전공학과) | Hyun Chyl Huh
• 전성균(양산대학 산업안전과) | Sung Kyun Jeon
• 이진우(한국산업안전공단) | Jin Woo Lee