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A comparative study of noise pollution levels in some selected areas in Ilorin Metropolis, Nigeria

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Abstract

The noise pollution is a major problem for the quality of life in urban areas. This study was conducted to compare the noise pollution levels at busy roads/road junctions, passengers loading parks, commercial, industrial and residential areas in Ilorin metropolis. A total number of 47-locations were selected within the metropolis. Statistical analysis shows significant difference (P < 0.05) in noise pollution levels between industrial areas and low density residential areas, industrial areas and high density areas, industrial areas and passengers loading parks, industrial areas and commercial areas, busy roads/road junctions and low density areas, passengers loading parks and commercial areas and commercial areas and low density areas. There is no significant difference (P > 0.05) in noise pollution levels between industrial areas and busy roads/road junctions, busy roads/road junctions and high density areas, busy roads/road junctions and passengers loading parks, busy roads/road junctions and commercial areas, passengers loading parks and high density areas, passengers loading parks and commercial areas and commercial areas and high density areas. The results show that Industrial areas have the highest noise pollution levels (110.2 dB(A)) followed by busy roads/Road junctions (91.5 dB(A)), Passengers loading parks (87.8 dB(A)) and Commercial areas (84.4 dB(A)). The noise pollution levels in Ilorin metropolis exceeded the recommended level by WHO at 34 of 47 measuring points. It can be concluded that the city is environmentally noise polluted and road traffic and industrial machineries are the major sources of it. Noting the noise emission standards, technical control measures, planning and promoting the citizens awareness about the high noise risk may help to relieve the noise problem in the metropolis.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Covenant University, Ota, Ogun State, Nigeria

    Olayinka S. Oyedepo

  2. Department of Mechanical Engineering, Kwara State Polytechnic, Ilorin, Kwara State, Nigeria

    Abdullahi A. Saadu

Authors
  1. Olayinka S. Oyedepo
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  2. Abdullahi A. Saadu
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Correspondence to Olayinka S. Oyedepo.

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Oyedepo, O.S., Saadu, A.A. A comparative study of noise pollution levels in some selected areas in Ilorin Metropolis, Nigeria. Environ Monit Assess 158, 155–167 (2009). https://doi.org/10.1007/s10661-008-0570-5

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  • DOI: https://doi.org/10.1007/s10661-008-0570-5

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