Effect of Harsh and Loud sound on Haematologic Parameters of Rat

Sound, a necessity of our daily life, when becomes noise, disturbs our health and routine. All major international health Organizations consider sound pollution as an important health problem. In this study, an animal model has been used to study the effects of noise (harsh and loud sound) exposure on is haematological composition. Twelve rats of about 200g by weight (6 male + 6 female) were randomized into two groups of test and control. Animals in the test group were exposed to a 90dB of noise for 90 days, while animals in the control group were kept in normal condition. By the end of the study, blood sample was taken from each animal in both the groups and a complete blood count was performed. In animals of the test group as compared to those in the control, there was significant increase in the number of red blood cells, white blood cells and haemoglobin content. It can be concluded that noise exposure affects blood haematological parameters.