Oyedepo, Sunday Olayinka
Evaluation and analysis of noise levels
in Ilorin metropolis, Nigeria.
Environ Monit Assess, 160.
ISSN DOI 10.1007/s10661-008-0719-2
Evaluation and analysis of noise pollution
levels have been carried out to determine the
level of noise and its sources in Ilorin metropolis.
Noise measurements have been done in the
morning, at noon, in the evening, and at night
to determine noise pollution all over the city.
The selected areas of study are commercial centers,
road junctions/busy roads, passenger loading
parks, and high-density and low-density residential
areas. The road junctions had the highest noise
pollution levels, followed by commercial centers.
The results of this study show that the noise levels
in Ilorin metropolis exceeded allowed values at
30 of 42 measurements points. There is a significant
difference (P < 0.05) in the noise pollution
levels and traffic noise index in all the locations.
From the measured noise values, a map of noise
pollution was developed for Ilorin. Many solutions
proposed for noise abatement in the city are
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