Development of Learning Network and Participatory Action for Noise - induced Hearing Loss Prevention in Steel Factory

Abstract

The objective of this research is to study the cooperative action process that creates a network and the effect of outputs from the network on reducing the risk of occupational noise-induced hearing loss in industrial factories by using a participatory action research model. The research process consists of 4 phases: 1: Preparedness of administrators, factory owners, labour union, and field researchers; 2: Problem solving/development operation; 3: Result evaluation at the end of the project; 4: Return project information to the target groups, community and society. We recruited a total 27 participants from executives, employees, and labour unions members as a target group. Data were collected by the research team. The quantitative data was analysed by quantitative method using statistics, percentages, mean, standard deviation, McNemar test, and Wilcoxon Matched Pairs Signed-Ranks Test. The qualitative data was validated by triangulation technique and analysed by content analysis. The research results are as follows: (1) The network formation process initiated by the executives, sufferers, and labour unions with then idea to reduce the loud noise from the sources inside the factory that are harmful to oneself and colleagues. (2) All of Employees working in noisy areas, office employees who have been exposed to loud noise for a short time, and outsiders entering the factory area wear 100% of PPE devices; 10 sections reduced the noise level to less than 85 dB(A); no incidence of hearing loss caused by loud noise. (3) There are 13 success stories and KAIZEN 49 items which are innovations to reduce the noise. (4) Hearing performance examination results of employees before and after the network was launched showed a statistically significant difference. It can be concluded that learning and cooperative operation network can help the hearing performance of employees and it is not inferior than without the network. (5) The network members accepted the network at a high level in all aspects such as structure, system, participation, knowledge exchange, sustainability, follow-up, and satisfaction. (6) Representatives from 16 large industrial factories and 10 government agencies participated in publishing the research meeting and expressed an interest in applying the research results.