STUDI KOMPARASI TEKANAN DARAH SEBELUM DAN SESUDAH TERPAPAR KEBISINGAN PADA TENAGA KERJA DI PT. ARTO METAL INTERNASIONAL SIDOARJO TAHUN 2012

Abstract

PT Arto Metal International is one of the companies that utilize production machineries capable of
producing high-intensity noise. Among the impacts of such engines relate to various health problems
among workers who work around noisy places such as increased blood pressure. Therefore it is
considered necessary to learn the differences in blood pressure before and after exposure to occupational
noise upon workers of the company.
This research employed analytical approach, to study the dynamics between risk factors (exposure
to noise) and effect (increased blood pressure), based on time. This is a cross-sectional study, since the
variables of risk factors and effects were observed simultaneously. Sampling is done by simple random
sampling, and data were analyzed for blood pressure before and after noise exposure, by way of Paired Ttests.
Measurement of noise intensity results in an average of 94.9 dBA. This noise intensity exceeds the
TLV (Threshold Limit Value) as designated by the Ministry Manpower No. 51/Men/1999 which is set at 85
dBA for 8 hours/day or 40 hours/week. Results of the Paired T-tests, both for systolic and diastolic blood
pressure difference between blood pressure before and after exposure to noise
Therefore, it is suggested that the company execute noise control in technical, administrative
aspects, and provided a number of ear protective devices so that every worker will wear ear protectors
when working
Keywords: blood pressure; noise.