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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue Nov 2012, 33 (6)                                     Back


nstantaneous and historical temperature effects on a-pinene

Dynamics of road traffic noise in Bhadrak city, India

 

Author Details

 

Bijay Kumar Swain

Department of Environmental Science, Utkal University, Bhubaneswar-751 004, India

Santosh Kumar Panda

Department of Physics, Dr. J.N.College, Balasore-756 021, India

Shreerup Goswami

(Corresponding author)

Department of Geology, Ravenshaw University, Cuttack-753 003, India

e-mail : goswamishreerup@gmail.com

 

 

 

 

Publication Data

Paper received:

19 August 2011

 

Revised received:

08 November 2011

 

Accepted:

22 December 2011

 

Abstract

Road traffic noise assessed in 13 different squares of major intersection points in Bhadrak city during four different specified times i.e. 7-10 a.m., 11a.m.-2 p.m., 3-6 p.m. and 7-10 p.m.. Road traffic was found to be the most important source of community noise at the studied sites. The noise levels of all the 13 squares were found to be beyond the permissible limit [70 dB (A)] during day time. Leq (equivalent noise level) values ranged from 93.4 to 100.5; 91.5 to 100.6; 95.1 to 107.3 and 97.3 to 106.3 dB during 7-10 a.m., 11a.m.-2 p.m., 3-6 p.m. and 7-10 p.m. respectively. LNP values range from 115.7 to 127.7; 114.2 to 129.8; 118.2 to 138.2 and 120.7 to 135 dB, while TNI values range from 134.3 to 154.7; 130.7 to 157.9; 136.7 to 168.2 and 137.2 to 165 dB during 7-10 a.m., 11a.m.-2 p.m., 3-6 p.m. and 7-10 p.m. respectively. Reprehensibly, even minimum LNP and TNI values are more than 114 and 130 dB respectively. Analysis of variance also computed for investigated squares at the peak hour i.e. 7-10 p.m. to infer the level of significance. The observed value of F (0.47) was less than the tabulated values and was not significant at both 5 and 1% levels of significance. Thus, the noise levels of different squares did not differ significantly at their peak hours. A preliminary public health survey carried out based on questionnaire method amongst 202 local inhabitants reveal the degree of annoyance due to road traffic noise.

 

Key words

Road traffic, Noise pollution, Noise descriptors, Health survey, Bhadrak

 

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