Browsing by Author "Tesarz, M"

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    Buller exponering och hälsoeffekter inom kraftindustrin
    (Arbetslivsinstitutet, 1997) Högström, R-M; Tesarz, M; Lindh, T; Gamberale, F; Kjellberg, A
    In the Elmiljö investigation noise turned out to be the most common work load in the power industry. In a case- controlstudy a cohort employees who developed a hearing impairment during the studied period were compared to a controlgroup without hearing impairment. Linemen and substation workers were overrepresented in the casegroup. The linemen were exposed to short periods of noise at high levels which can have caused the hearing impairment. The main sources of the noise were power saw, drill, snowscooter, aircompressor and excavator. Noise in leisure time could have contributed to the hearing impairments. The noise was considered as more annoying by the casegroup than by the controlgroup and this difference increased during the studied period. The only symptoms that differed between the groups was earproblems which were more common in the case group. The majority of the symptoms studied was related to how often the noise exposure occurred and to the feeling of annoyance. When the workplaces and the worktasks vary it was not possible to measure the noise exposure satisfactory. Intercorrelations between variables made it difficult to decide whether noise or other workloads caused the occuring symptoms. A general source of uncertainty was the use of hearing protectors.