This paper is concerned with personal noise exposure of workers in daily life and their reactions to noise environments. In many cases L_<eq24> are decided by the noise exposure due to work and commutation, especially in the cases of skilled workers or ones whose L_<eq24> are high, their noise exposure due to work are usually most predominant. Next, analysis and prediction of L_<eq> during work and also during commutation are done using reaction to noise environments as well as the attitude of subjects. From this a method of prediction of L_<eq24> of workers is proposed and the results are compared with the measured ones. Finally subjects are classified by a series of reaction to the noise environment in workshop, on commutation, and at home. As the results, the subjects over 50% respond as "medium" or "low" to all noise environments. On the contrary, 25% and 20% of subjects respond as "loud" to noise in workshop and commutation, respectively. Partial order scalogram analysis (POSA) is also made which throws light on mental attitude of workers to noise environments in daily life
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