HUBUNGAN KARAKTERISTIK INDIVIDU DENGAN NILAI AMBANG DENGARTENAGA KERJA (Studi Pada Ruang Produksi PT. Ispat Wire Products Sidoarjo)

Abstract

PT. Ispat Wire Products is a company that utilizes various machines in its operation and generate high level of
noise intensity. This situation may eventually affect the health of workers, especially in relation to the hearing
threshold value. Therefore it is necessaryto launch an investigative inquiries on the relationship of individual's
characteristics such as age, years of service and use of hearing protection devices with the threshold hearing
among noise-exposed workers.
This type of analytical study involved with a sample of 60 workers. Sampling was done by simple random
sampling, while the chi-square test was used in the analysis to determine the relationship of individual's
characteristics with the threshold hearing level among noise-exposedworkers using.
Measurements resulted in an average noise intensity of 96.8 dBA. The measured threshold value exceeded
the specified figure designated in the Minister of Manpower Decree No. 51/Men/1999, which designated a
value of 85 dBA for 8 hours/day or 40 hours/week. Results of the chi-square test proved the relationship
between individual's characteristics including age, years of service and usage of PPDwith hearing threshold
among noise-exposed workers.
Therefore, it was recommended that the company should initiate both noise control engineering and
administrative measures, and set local regulation designating penalties against workers who violated the
provisions of the company.