Underwater noise pollution in a coastal tropical environment

被引：44
作者：
Bittencourt, L. [1 ,2 ]
Carvalho, R. R. [1 ]
Lailson-Brito, J. [1 ,2 ]
Azevedo, A. F. [1 ,2 ]
机构：
[1] Univ Estado Rio de Janeiro, Lab Mamiferos Aquat & Bioindicadores Prof Izabe G, BR-20550011 Rio De Janeiro, Brazil
[2] Univ Estado Rio de Janeiro, Programa Posgrad Oceanog, BR-20550011 Rio De Janeiro, Brazil
来源：
MARINE POLLUTION BULLETIN | 2014年 / 83卷 / 01期
关键词：
Marine sound pollution; Guanabara Bay; Vessel traffic; ACOUSTIC AMBIENT NOISE; LAWRENCE MARINE PARK; RIO-DE-JANEIRO; RADIATED NOISE; GUANABARA BAY; BEAKED-WHALES; OCEAN NOISE; SHIP NOISE; SOUND; RESPONSES;
D O I：
10.1016/j.marpolbul.2014.04.026
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Underwater noise pollution has become a major concern in marine habitats. Guanabara Bay, southeastern Brazil, is an impacted area of economic importance with constant vessel traffic. One hundred acoustic recording sessions took place over ten locations. Sound sources operating within 1 km radius of each location were quantified during recordings. The highest mean sound pressure level near the surface was 111.56 +/- 9.0 dB re 1 mu Pa at the frequency band of 187 Hz. Above 15 kHz, the highest mean sound pressure level was 76.21 +/- 8.3 dB re 1 mu Pa at the frequency 15.89 kHz. Noise levels correlated with number of operating vessels and vessel traffic composition influenced noise profiles. Shipping locations had the highest noise levels, while small vessels locations had the lowest noise levels. Guanabara Bay showed noise pollution similar to that of other impacted coastal regions, which is related to shipping and vessel traffic. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：331 / 336
页数：6
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