OCCUPATIONAL NOISE EXPOSURE AND ITS RELATIONSHIP TO BLOOD PRESSURE AND OTHERS ASPECTS OF HEALTH IN TEXTILE INDUSTRIES

INTRODUCTION: Loud noise is more than a hazard to hearing. Noise can hinder communication , isolate workers , and impact on production and in some cases cause physiological health problems. It can also cause an array of health problems and create a dangerous workplace. Hence it is important for workers to reduce their exposure to noise. Noise is defined as sounds that are unwanted, unpredictable and uncontrollable. If noise levels are not reduced, their impact (physiological impact in particular) on health will be grave. This study measured and evaluated sound levels and assessed their adverse health impacts on textile industries workers.METHODS: Time-weighted average sound level was measured with B KEJ 2231 soundlevel meter. Sound levels were measured at all locations in textile factories. Two groups of workers were selected according to location (group A: major, group B: minor). Group A comprised workers exposed to more than 85 dB (A). Their age range was 20-50 years with a working history of 5-30 years. Noise-related physiological parameters were evaluated using questionnaires. The questionnaires obtained information on blood pressure, gastrointestinal and cardiovascular condition, bowl disorders , dizziness, sleep problems, and fatigue.RESULTS: Mean systolic and diastolic blood pressure was 117.5 mmHg and 74 mmHg respectively in group A, and 118 mmHg and 77.8 mmHg respectively in group B.DISCUSSION: There is no evidence to support the relationship between noise levels above 85 db (A) and high blood pressure, loss of sleep and gastrointestinal problems, however, there is significant evidence supporting the relationship between noise levels above 85 dB and adverse physiological effects.