Community attitudinal noise survey and analysis of eight Nigerian cities

Saadu, Abdullahi A.; Onyeonwu, R.O.; Ayorinde, Emmanuel O.; Ogisi, FO

doi:10.1016/0003-682x(95)00008-w

Cited by 21 publications

(27 citation statements)

References 6 publications

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“…Built-up areas (settlement) recorded remarkable increase across the years observed with more than 100% increase in 2015. One of the primary reasons for increase in settlement could be that Onitsha (the study area) has become a commercial hub center in Nigeria and Africa [52,53]. There have been high emigrants into the city from within and outside Nigeria due to the recent industrial and commercial development in the area.…”

Section: Overall Landuse-landcover (Lulc) Changesmentioning

confidence: 99%

Is Nigeria losing its natural vegetation and landscape? Assessing the landuse-landcover change trajectories and effects in Onitsha using remote sensing and GIS

Nwaogu

Okeke²,

Fadipe

et al. 2017

Open Geosciences

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Onitsha is one of the largest commercial cities in Africa with its population growth rate increasing arithmetically for the past two decades. This situation has direct and indirect effects on the natural resources including vegetation and water. The study aimed at assessing land use-land cover (LULC) change and its effects on the vegetation and landscape from 1987 to 2015 using geoinformatics. Supervised and unsupervised classifications including maximum likelihood algorithm were performed using ENVI 4.7 and ArcGIS 10.1 versions. The LULC was classified into 7 classes: built-up areas (settlement), waterbody, thick vegetation, light vegetation, riparian vegetation, sand deposit (bare soil) and floodplain. The result revealed that all the three vegetation types decreased in areas throughout the study period while, settlement, sand deposit and floodplain areas have remarkable increase of about 100% in 2015 when compared with the total in 1987. Number of dominant plant species decreased continuously during the study. The overall classification accuracies in 1987, 2002 and 2015 was 90.7%, 92.9% and 95.5% respectively. The overall kappa coefficient of the image classification for 1987, 2002 and 2015 was 0.98, 0.93 and 0.96 respectively. In general, the average classification was above 90%, a proof that the classification was reliable and acceptable.

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Section: Overall Landuse-landcover (Lulc) Changesmentioning

confidence: 99%

Is Nigeria losing its natural vegetation and landscape? Assessing the landuse-landcover change trajectories and effects in Onitsha using remote sensing and GIS

Nwaogu

Okeke²,

Fadipe

et al. 2017

Open Geosciences

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“…This is given by 13 The noise exposure records of the workers in the soft drink bottling industry, minerals crushing mills and beer brewery and bottling industry were computed based on Tables 13 and 14 show the noise expose records. Table 15 shows the computed L Aeq (8 h) for minerals crushing mills, soft drink bottling industry and beer brewing and bottling industry where impulse noise occurred.…”

Section: Procedures For Assessing Employee's Noise Dosementioning

confidence: 99%

“…In 1985, Saadu 13) assessed the occupational environment of news paper printing press, steel rolling mill, soft-drink bottling, match making, mattress making, beer brewing and bottling industries in Ilorin metropolis. The lowest average noise and highest average noise recorded were 82 dB(A) at mattress making industry and 98 dB(A) at beer brewing and bottling industry.…”

mentioning

confidence: 99%

An Overview of Industrial Employees' Exposure to Noise in Sundry Processing and Manufacturing Industries in Ilorin Metropolis, Nigeria

Olayinka

Abdullahi

2009

INDUSTRIAL HEALTH

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“…Nowadays, there is a great concern about noise in city-based and industrial areas [4][5][6][7][8][9][10][11][12][13][14][15][16][17] The noise generated from operating wind and gas turbines [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] is classifiable as an aerodynamic or a mechanical sound as a whole. Aerodynamic sound is generated from the blade passing through the air, and mechanical sound is emitted by some equipment in the nacelle [36].…”

Section: Introductionmentioning

confidence: 99%

Comparative study of the noise generated by the moto-compressor and that generated by the turbo-compressor

Arbaoui

Hamou

Abderrahim

et al. 2018

J. Fundam and Appl Sci.

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The fundamental aim of this study is to compare between the noise generated by the moto-compressor and the noise generated by the turbo-compressor operating 24H/24H on the continuous function mode; these two machines make part of the equipment of the GP1Z, a factory of hydrocarbon treatment. To attain the principal objective of this study we divided our work into two parts, in the first part we followed and evaluated the average level of the noise emitted by the two machines, whereas in the second part we studied the noise propagation emitted by the two machines and its impact on the generation of the noise. The results obtained from this study demonstrate that the noise generated by the turbo-compressor is higher than the noise generated by the moto-compressor.

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Community attitudinal noise survey and analysis of eight Nigerian cities

Cited by 21 publications

References 6 publications

Is Nigeria losing its natural vegetation and landscape? Assessing the landuse-landcover change trajectories and effects in Onitsha using remote sensing and GIS

Is Nigeria losing its natural vegetation and landscape? Assessing the landuse-landcover change trajectories and effects in Onitsha using remote sensing and GIS

An Overview of Industrial Employees' Exposure to Noise in Sundry Processing and Manufacturing Industries in Ilorin Metropolis, Nigeria

Comparative study of the noise generated by the moto-compressor and that generated by the turbo-compressor

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