ISSN 2394-5125
 

Research Article 


MEASUREMENT AND MAPPING OF HELICOPTER NOISE: A CASE STUDY OF MGBUOSHIMINI COMMUNITY, NIGERIA

OF Orikpete, TG Leton, OLY Momoh.

Abstract
A quantitative study comprising of physical measurements of helicopter noise levels in Mgbuoshimini Community was conducted. The grid method was employed to determine the sampling points and noise measurements were taken for a week each at twenty different locations from 7 am to 5 pm using a TES 1358E Sound Analyzer IEC 61672-1 Class 1 standard, Real time 1/1-Octave and 1/3-Octave analyzer. Location coordinates for noise mapping were obtained using a Garmin Oregon 700 Handheld GPS; and ambient temperature, relative humidity, and wind speed for each location were measured using the SHAHE Portable Digital Anemometer. Results showed a range of noise indices across the twenty locations from lowest to highest as follows: Leq (70.23 to 82.15 dBA); L10 (53.81 to 81.66 dBA); L50 (50.04 to 73.28 dBA); L90 (47.34 to 69.98 dBA); NPL (56.72 to 87.22 dBA); PNL (78.20 to 94.95 PNdB); and SIL (52.42 to 66.92 dBA). From these results, it was found that helicopter flyover noise exceeded the WHO recommended dose of 55 dBA for day-time and also the Nigerian environmental noise standard of 50 dBA for day-time noise limit for residential areas. Consequently, it was deduced that residents of Mgbuoshimini Community may be exposed to psychological and physiological damage as a result of excessive helicopter noise with serious speech interference. In conclusion a noise model which was a function of the number of flyovers above 70 dBA, temperature, wind speed and relative humidity was developed for noise prediction and the coefficient of regression was found to be 0.73

Key words: helicopter noise; noise indices; annoyance; speech interference; noise mapping.


 
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How to Cite this Article
Pubmed Style

OF Orikpete, TG Leton, OLY Momoh. MEASUREMENT AND MAPPING OF HELICOPTER NOISE: A CASE STUDY OF MGBUOSHIMINI COMMUNITY, NIGERIA. JCR. 2020; 7(19): 4633-4652. doi:10.31838/jcr.07.19.543


Web Style

OF Orikpete, TG Leton, OLY Momoh. MEASUREMENT AND MAPPING OF HELICOPTER NOISE: A CASE STUDY OF MGBUOSHIMINI COMMUNITY, NIGERIA. http://www.jcreview.com/?mno=127717 [Access: September 16, 2020]. doi:10.31838/jcr.07.19.543


AMA (American Medical Association) Style

OF Orikpete, TG Leton, OLY Momoh. MEASUREMENT AND MAPPING OF HELICOPTER NOISE: A CASE STUDY OF MGBUOSHIMINI COMMUNITY, NIGERIA. JCR. 2020; 7(19): 4633-4652. doi:10.31838/jcr.07.19.543



Vancouver/ICMJE Style

OF Orikpete, TG Leton, OLY Momoh. MEASUREMENT AND MAPPING OF HELICOPTER NOISE: A CASE STUDY OF MGBUOSHIMINI COMMUNITY, NIGERIA. JCR. (2020), [cited September 16, 2020]; 7(19): 4633-4652. doi:10.31838/jcr.07.19.543



Harvard Style

OF Orikpete, TG Leton, OLY Momoh (2020) MEASUREMENT AND MAPPING OF HELICOPTER NOISE: A CASE STUDY OF MGBUOSHIMINI COMMUNITY, NIGERIA. JCR, 7 (19), 4633-4652. doi:10.31838/jcr.07.19.543



Turabian Style

OF Orikpete, TG Leton, OLY Momoh. 2020. MEASUREMENT AND MAPPING OF HELICOPTER NOISE: A CASE STUDY OF MGBUOSHIMINI COMMUNITY, NIGERIA. Journal of Critical Reviews, 7 (19), 4633-4652. doi:10.31838/jcr.07.19.543



Chicago Style

OF Orikpete, TG Leton, OLY Momoh. "MEASUREMENT AND MAPPING OF HELICOPTER NOISE: A CASE STUDY OF MGBUOSHIMINI COMMUNITY, NIGERIA." Journal of Critical Reviews 7 (2020), 4633-4652. doi:10.31838/jcr.07.19.543



MLA (The Modern Language Association) Style

OF Orikpete, TG Leton, OLY Momoh. "MEASUREMENT AND MAPPING OF HELICOPTER NOISE: A CASE STUDY OF MGBUOSHIMINI COMMUNITY, NIGERIA." Journal of Critical Reviews 7.19 (2020), 4633-4652. Print. doi:10.31838/jcr.07.19.543



APA (American Psychological Association) Style

OF Orikpete, TG Leton, OLY Momoh (2020) MEASUREMENT AND MAPPING OF HELICOPTER NOISE: A CASE STUDY OF MGBUOSHIMINI COMMUNITY, NIGERIA. Journal of Critical Reviews, 7 (19), 4633-4652. doi:10.31838/jcr.07.19.543