Noise pollution is considered as more important environmental problem, especially in the
industrialized and developed countries. Industrial noise is an important source of noise pollution, which annoys
and disrupts the daily activities of workers. This study focuses on the industrial noise and its effects on workers.
Thirteen different industries chosen randomly in Duhok city, in Kurdistan region, North of Iraq. To cover this
study an instrument for measurement the sound level was used, in addition to a questionnaire contains (38)
questions to study all the possible reported effects of noise on humans, (90) workers of different industries were
chosen, the questionnaires were analysis to determine how much employees were affected by high noise levels in
the workplace.