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Noise
is the most common environmental pollutant and the most widely
occurring health hazard in industrial workplaces. Even new manufacturing
plants, unless designed with input from an occupational hygienist
or noise specialist, are often constructed with significant built
in employee noise exposures. Evaluation of these exposures is
essential to identify employees at risk and workplace areas where
noise control is required. A knowledge of noise monitoring, and
basic noise control strategies is necessary to run an effective
noise control program.
A
prerequisite for any hearing conservation plan is the identification
of all plant operations that contribute to noise exposure of the
employees and to quantify the contribution they make. Efforts
can then be directed to reducing noise exposures through engineering
controls and other measures in order to protect the hearing of
all employees.
The
assessment of workplace noise exposure requires an understanding
of basic acoustic principles and familiarity with the instrumentation
and procedures used to characterize the acoustic environment of
the workplace. This course introduces the theoretical principles
and practical skills required by the occupational health professional
to evaluate potential noise exposures and formulate the basis
of a noise exposure control program. With this knowledge, it is
possible for industrial hygienists to accurately quantify worker
exposures and use this data to develop noise control solutions.
Course
Objective
The
objective of this course is to provide each participant with a
fundamental understanding of noise and its effects on human hearing,
noise measurement techniques and basic noise control principles.
Topics
Covered
Topics
covered in the course include: the fundamental physics of sound;
the physiology of hearing and hearing loss; non auditory impacts
of noise exposure; noise exposure standards and guidelines; the
operation of sound level meters and noise dosimeters; octave band
analysis; sound measurement calculations; the use of computer
programs for noise exposure data analysis; sound measurement reporting.
Special considerations relating to community noise evaluation
will also be discussed.
The
course includes hands-on experience with several simulated measurement
scenarios to ensure that the participant can take valid noise
measurements with confidence. Practical exercises in performing
the more common calculations associated with computing noise exposures
will also contribute to the participants understanding of noise
monitoring and noise exposure evaluation.
In order to complete this course the participant should have a
basic understanding of algebra and logarithmic notation. Each
participant should bring a basic scientific calculator in order
to perform the calculations required in the exercises. The calculator
should have the ability to calculate basic logarithmic functions.
More elaborate functions are not required.
During the course, several different techniques will be described
for using computer spreadsheets to process noise data. Participants,
who have a laptop computer they can bring to the course, will
be able to use it to advantage during some of the practical exercises.
Simple software programs and spreadsheet templates will be provided
to participants. Although useful, a computer is not required in
order to take the course.
Our
goal is to ensure that every course participant is comfortable
with the measurement technology, techniques and strategies of
sound level measurement for occupational noise exposure assessment.
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