STATUS OF NOISE IN YESHWANTHPUR CIRCLE (BANGALORE NORTH) BASED ON ON-SITE DATA RECORDINGS AND ANALYSIS

C. Lakshmi

Abstract: The most unbearable environmental pollutant in the present day condition is the noise. It is definitely an unwanted sound. In the present day, noise levels have gone up in almost all the places, which is proved as health hazard, causing harmful physical and physiological problems. Bangalore is the fastest growing city in Asia. Many manufacturing industries and multi- national companies for software development are making their bases in Bangalore, because of favorable environment. Rapid urbanization of Bangalore city have increased the human population, industries and vehicular population, which are the major sources of noise. Hence, it was felt necessary to carry out the proposed study to assess the noise levels in the selected part of Bangalore. The survey area covers a distance of 15Kms around the periphery of M.S. Ramaiah Institute of Technology. In north of Bangalore this area was chosen to assess the present noise levels and compare with the permissible limits of sound pressure level. The selected area was covered by locating 15 stations on the boundary. Noise level measurements were made at respective stations. The sound level reading were recorded for fifteen days. The daytime survey was conducted for eight days followed by night time survey for next seven days. During day time survey was conducted from morning 6AM to 10PM. (for about 5 to 10 minutes at each location). A week after that noise levels were measured at the same locations during night time from 10PM to 6PM at peak and non peak hours. The noise measurements were carried out using sound level meter (SLM) Lutron-4011. All Leq values are compared to the permissible limits and a detailed study was carried out. In the commercial area all the locations were mostly affected. The silent zone was also affected with noise pollution during day time due to the construction activities in the residential areas and also huge increase in population. The noise pollution can be reduced by several methods such as by diversion of traffic flow, provision of smooth road surface, control of speed breakers, banning of horns, plantation of tree and also some legal measures to avoid further worsening of problems.

Keywords: NOISE IN YESHWANTHPUR

DOI: https://doi.org/10.15623/ijret.2014.0318006