Effects of Generating Plant Noise on Humans and Environment

Abstract

Noise measurements were taken in the morning, afternoon, evening, and night to determine the extent of noise pollution all over the city. A calibrated sound level meter was used to measure the generating plant noise. The equivalent sound levels (Leq) were measured at 20 different locations, between 8 a.m and 10 p.m. High noise levels were observed throughout the town. The data obtained was analysed and the results then compared with world health organization standard. The noise equivalent level varied between 99.4 and 83.2 dBA. The results of the study established the fact that generator noise levels are more than the acceptable limit of 60 dBA, thatis the daytime government prescribed noise limit for residential and commercial areas. The reaction of the residents to generating plant noise was monitored with a total of 300 questionnaires. The results of the interview questionnaire revealed 97% of the people classified the noise in their street as very high while 3% says it is low. And also the respondents answered that noise bother them more in day and night while 11% of the respondents say it is only in the night only. The main outcomes of exposure to generating plant noise were loss of sleep, hearing loss, annoyance and disturbance.