Abstract
Faculty of Natural and Technical Sciences and Faculty of Medical Sciences
starting from December 2012, launched joint study in order to investigate
personal noise exposure and associated health effects in general school
teachers population, starting from kindergartens up to high schools in
Stip, Macedonia.
In order to determine workplace associated noise exposure and associated
health effects in this specific profession, a full shift noise exposure of
40 teachers from 1 kindergarten, 2 primary and 2 high schools were
measured in real conditions using noise dosimeters.
A-weighted equivalent-continuous sound pressure levels (LAeq) of each teacher
were recorded during single activities (classes). Normalized 8-hours
exposure, termed the noise exposure level (Lex;8 h) was also computed.
Daily noise dose is another descriptor for noise exposure that was
determined as a measure of the total sound energy to which workers have
been exposed, as a result of working in the varying noise levels.
Health effects were assessed trough a full scale epidemiological study which
included 231 teachers from the same schools. Specific questionnaire was
used to extract information about subject’s perception on occupational
noise exposure, as well as theirs occupational and medical history.
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