Ibhadode, Osagie and Oyedepo, Sunday Olayinka and Ogunro, Steve and Azeta, Joseph and Banjo, SolomonO. and Umanah, I. I. and Apeh, E.S. and Ayoola, A. R. (2018) An Experimental-assessment of Human Exposure-levels to Aircraft Noise-hazards in the Neighbouring-environments of four Nigerian Airports. In: ICESW IOP Publishing IOP Conf. Series: Materials Science and Engineering.
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Abstract
This paper reports a scientific-assessment of the exposure-levels of aircraft noisehazards suffered by persons living/working within the neighbourhoods of four Airports [Ibadan, Benin-City, Warri and Owerri] in Nigeria. Physical measurements of selected aircraft and environmental noise parameters [Ambient Noise Level ( ANL ), Sound Pressure Level ( SPL ), Aircraft Take-off Noise-level ( ATNL ) and Aircraft Landing Noise-level ( ALNL )]; were carried-out using the integrated CR811C Noise meter, during one hundred and twenty (120) periodic noise sampling-surveys; performed [from January to December 2017] at thirty (30) randomly-selected study-locations, within the vicinity of each of these four(4) airports in accordance with the Method/Standard-procedures specified by the International Standards Organisation’s (ISO) relevant standards—ISO 3891, ISO 1996-1 and ISO 1996-2. The results showed that: while SPL ranged from 103-115 dB( A) , ANL ranged from 52.3 – 64.1 dB( A) , the ATNL ranged from 69.6 – 87.7 dB( A) , and ALNL ranged from 66.2 – 82.7 dB( A) . Actually, these results are alarming, since they significantly exceed the WHO Standard Recommended Maximum Noise-levels of: 35 dB( A) [Indoor], 55 dB( A) [Outdoor] to prevent Speech-intelligibility, Noise-annoyance & Sleep-disturbance; and 90 dB( A) [being the Permissible Noise level/limit for 8hour daytime safe human exposure]. These and the results of the Statistical analysis (Wilcoxon Sign Rank Test) carried-out, clearly prove the existence of a generally ignored, but yet dangerous problem of continuous human-exposure to excessively highlevels of Aircraft noise-hazards to which residents of Airports’ neighborhoods are subjected.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | Aircraft Noise-hazard, Airport, Environment, Exposure-level, Noise-level |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Mrs Patricia Nwokealisi |
| Date Deposited: | 23 Oct 2018 14:25 |
| Last Modified: | 23 Oct 2018 14:25 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/12012 |
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