An investigation of occupational noise and hearing effects on workers in Don Muang RTAF plant | |
| Author | Somsri Pongsomboon |
| Call Number | AIT Thesis no.EV-82-21 |
| Subject(s) | Workshop sounds Noise--Physiological effect |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | The present research was conducted to assess the occupational noise levels, % exposure, noise induced, hearing loss and to promote an Industrial Hearing Conservation Programme at the Don Muang Royal Thai Air Force Plant. From the investigation of 36 workshops, it revealed that there are 6 workshops which have the risk of noise induced hearing loss and difficulty in speech communication because the noise levels are quite high, ranging from 95.4 dB(A) to 148.2 dB(A) and Preferred Speech Interference Level (PSIL) is in the range of 86.8 dB to 113.3 dB. It is significant that the Mean Hearing Threshold Level (Mean HTL) of the non-daily exposed to the occupational noise is better than those directly exposed to the occupational noise levels from 85 dB(A) upwards in every age group, and the Mean HTL of the exposed workers is significantly increased with the number of years of service, in particular the Mean HTL dropped at the frequency 6000 Hz. Therefore, for good health in workers, it is necessary that this plant should follow the Industrial Hearing Conservation Programme. |
| Year | 1982 |
| Type | Thesis |
| School | School of Environment, Resources, and Development |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Environmental Engineering (EV) |
| Chairperson(s) | Samorn Muttamara ; Wanchai Phothiphichitr |
| Examination Committee(s) | Lohani, B.N. |
| Scholarship Donor(s) | The Government of Australia |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1982 |