15 sites have been identified for measuring noise pollution resulting from an in-situ oil refinery in public places (perimeter where workers move), and inside buildings (places where workers practice their profession) And another close to the residential areas of the refinery, where the measurement results showed that the locations of the study area exceeded most of them the permissible environmental determinant of noise and proved this through the questionnaire form of the employees where the percentage was recorded (49%) of the study sample has hearing impairment, and 83.2% suffer from sleep disorders and disturbing dreams. The results of the field study showed that there was a discrepancy in the noise level of the Dhu Qar Oil Refinery's measurement sites, with the highest noise level recorded during the summer (July 2023) and winter (January 2024), near the asphalt unit (the highest aspect) with a noise rate of 103 decibels.