Levels of exposure to noise through the Bootstrap methodology in workers of a company

Abstract

Introduction: Prolonged exposure to high levels of noise has been
associated with health problems, so the design and execution of risk
assessment studies of occupational exposure to continuous high noise
could avoid health problems and job dissatisfaction.
Objective: To determine the noise exposure levels of users of the
public company of agricultural producers San Pedro de Riobamba through
the application of the Bootstrap methodology.
Material and Methods: A descriptive observational study was
carried out in a company. Strategy 2 of the Peruvian NTP-ISO 9612
standard was applied where a sample of 208 points was located. The
continuous equivalent sound level (Leq.) expressed in decibels (dB(A))
and the exposure time (in hours) were evaluated as a study variable.
The Bootstrap method was used to calculate confidence intervals of the
weighted equivalent continuous sound pressure level.
Results: On the main marketing platform the noise range was
between 73,68509 and 74,45156 dB. On the tropical fruit platform
(73,98598 and 74,64375) dB, which are between (75,29594 and
77,86022) dB; on the producers' platform (75,29594 and 77,86022) dB;
and on the seafood platform (74,89924 and 77,48234) dB. The analysis of
the data through the bootstrap methodology showed intervals below the
permitted level of 85dB in each of the sampling areas.
Conclusions: The noise exposure levels of the users of the public
company of agricultural producers San Pedro de Riobamba are adequate,
so it can be said that there is a low risk of suffering from hearing disorders.