Field survey on road traffic noise and evaluation of hearing loss and risk factors questionnaire in the community of Kota Bharu, Kelantan.

• Main Author: Mohd. Taha, Haslinda
• Format: Thesis
• Language: English
• Published: 2002
• Subjects: RF Otorhinolaryngology
• Online Access: http://eprints.usm.my/36308/

Tujuan utama kajian ini dijalankan adalah untuk mengenalpasti tahap purata kebisingan bunyi bising di beberapa tempat di sekitar Kota Bharu dan menilai beberapa factor-faktor yang berisiko menyebabkan masalah pendengaran dan mengenengahkan inciden masalah kehilangan pendengaran yang disebabkan oleh bunyi bising terutama terhadap orang-orang yang tinggal berhampiran dengan jalanraya-jalanraya yang sibuk. Tahap kebisingan bunyi diukur menggunakan peralatan yang dipanggil 'sound level meter' di sepanjang 15 tempat sepanjang jalanraya-jalanraya yang dipilih. Kajian meliputi 16 jam dalam masa sehari. Tempat yang dipilih kemudiannya dibahagikan kepada tiga kumpulan utama. Berdasarkan kepada tahap purata kebisingan bunyi, kumpulan tersebut sekali lagi dibahagikan kepada kumpulan yang terdedah kepada bunyi bising dan kumpulan yang dikawal. The purpose of this study were to established the average traffic noise level in various places in Kota Bharu and to assess various risk factor of hearing loss and to document the incidence of noise- induced hearing loss among people living the traffic lane in Kota Bharu. The noise level were measured using the sound level meter at 15 sites along the traffic lane . The study was carried out for 16 hours per day. Those sites were then categorize into three main groups.Based on the average noise level the group then further divided into noise exposed group and control group. Then written questionnaire were given to both, the exposed group and control to assess the risk factors for hearing loss among them. Subsequently the pure tone audiogram were done to assess the hearing status.