A study on noise in indian banks: An impugnation in the developing countries

In the present study,noise levels were monitored in twenty one different banks of the cuttack,the largest commercial city of the state odisha,india,in the months of january to april,2011 during two specified times (10 a.m.-1 p.m. and 1-4 p.m.). different noise descriptors such as l10,l 50,l90,leq,npl (noise pollution level),nc (noise climate) etc.,were analysed to infer the extent of noise pollution in the investigated commercial banks of cuttack. the noise levels in different banks ranged from 51.1 to 90.5 db and from 51.4 to 91.1 db during 10 a.m.-1 p.m. and 1 -4 p.m.,respectively. similarly,leq ranged from 71.5 to 82.1 and 67.4 to 72.2 db and npl ranged from 90.6 to 105.5 db and 81.6 to 100.8 db during 10 a.m.-1 p.m. and 1-4 p.m.,respectively,which is more than permissible limit i.e.,50 db (as prescribed in usa). t-test was also computed for all the 21 banks to infer the existence and statistical significance of the variations in noise levels.