Category Archives: International Journal of Environmental Studies and Safety Research, volume 6, number 2, 2021

  • November 3, 2022
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SPATIAL ANALYSIS OF URBANIZATION ON RATE OF WETLAND LOSS IN PORT HARCOURT METROPOLIS

Category : International Journal of Environmental Studies and Safety Research, volume 6, number 2, 2021

 Amadi, O. M. P*., Youdewei, P*. & Ogbuji, S. I

*Institute Geosciences and Environmental Mgt, Rivers State University, Port-Harcourt

 Dept. of Geography and Environmental Management, Imo State University Owerri.

 Email: sogbujiic@yahoo.com

ABSTRACT

Urbanization is usually accompanied with the alteration or destruction of the ecosystem, including wetlands. The rate of urbanization in Port Harcourt Metropolis and loss of wetland calls for proper evaluation in order to ascertain the rate and actual amount of wetlands lost to urbanization so as to arrest or reduce to barest minimum this ugly trend. Data were collected through satellite imagery of the study area and GPS. The data were analyzed using Geographic Information System techniques (GIS). The findings showed that the major land-use types identified in the study alongside wetlands include built up area, water bodies, farmland/sparse vegetation. The findings from the study revealed that in 1990 wetland occupied a spatial extent of 123.23 km2(26.89%) of the land use of the study area. Consequently, in the year 2020, there was dramatic change as wetland size reduced to 44.61 km2 (9.74%) of the total land-use of the study area. Conversely, built up area (Urban sprawl) increased dramatically in 1990 from 85.14 km2 (18.58%) to 213.09 km2 (46.50%) in 2020.This concludes that urbanization and variation in wetland loss will continuously have an inverse relationship and wetlandsin the verge of being completely lost with time due to urban expansion or urban sprawl. The study recommended that adequate and continuous monitoring of wetlands by use of satellite and remote sensing should be encouraged in the study area.

Keywords: Spatial analysis, Urbanization, Wetland loss, Port Harcourt Metropolis

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  • January 19, 2022
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EFFECT OF MONITORING AND EVALUATION PRACTICES ON CONSTRUCTION PROJECTS’ TIME IN OSUN STATE

Category : International Journal of Environmental Studies and Safety Research, volume 6, number 2, 2021

Oyelami, Kehinde Olufemi & Dosumu Babatunde, A

Department of Quantity Surveying, Osun State College of Technology, Esa Oke,

Department of Quantity Surveying,The Polytechnic, Ibadan, Oyo Sate

Email: distinct.ok@gmail.com

ABSTRACT

Construction project monitoring and evaluation is a vital component of project management. The paper examined the effect of monitoring and evaluation practices on construction projects delivery (time) in Osun State. Questionnaires were designed to meet the research objectives and to test its hypotheses and were administered to construction professionals working with the state government in the ministry of works as well as construction professionals working with contractors that handled/ (were handling) construction projects in the state. The questionnaires were analyzed using descriptive and inferential statistics and deductions derived from the analysis. The results showed that there is a strong positive relationship between monitoring and evaluation practices and project time. The hypotheses were tested and the test revealed that M & E Practices have significant impact on construction project time. The study revealed that a unit increase in X1, X2, X3 and X4 causes Y (Project delivery defined by time, to increase by -0.107, 0.132, -0.136 and 0.235 respectively. The study concluded that M & E practices have significant impact on construction project time in the study area. The study recommended that there should be a shift from the traditional approach of monitoring and evaluation to the modern approach of use of software in monitoring and evaluation of construction projects. The study further recommended construction projects staff should be trained in order to equip them with technical expertise necessary to carry out monitoring and evaluation to ensure timely completion of construction projects.

Keywords: Monitoring, Evaluation, Monitoring and Evaluation practices,Construction, Projects

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  • August 9, 2021
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CERAMIC TILES WASTE AS AGGREGATE IN CONCRETE PRODUCTION

Category : International Journal of Environmental Studies and Safety Research, volume 6, number 2, 2021

Gana A.J; Oyedele O. Tope & Braimoh S.O.

Department of Civil Engineering

Landmark University, Omu-Aran, Kwara State

Email: braimohsolomon@lmu.edu.ng&braimohsolo@gmail.com

ABSTRACT

In construction industry,the use of course aggregate and consumption of ceramic materials is increasing every day. While a reasonable quantity of ceramic tiles material ends up as waste the use of these waste in the production of concrete can be an efficient measure in disposing of these waste and in keeping the environment clean and improving the properties of concrete. Compressive strength test was carried out on the cubes produced with ceramic tiles waste of 5%, 10%, 20%, 30% 40% and 50% with natural coarse aggregate. After analyzing all the results, obtained, the highest compressive strength value was obtained at 5%.This shows that 5% replacement of ceramic tiles for all the replacement and all the curing days has the highest compressive strength value (12.07, 21.78 and 20.71). after 20% ceramic waste tile, the compressive strength starts decreasing as compared to control sample of 14 curing days.

Keywords:Ceramic tiles waste, Replacement, Course aggregate, concreteproduction.

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  • August 9, 2021
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ASSESSMENT OF PLASTIC AS TECHNOLOGICAL EFFECT TO CLIMATE CHANGE

Category : International Journal of Environmental Studies and Safety Research, volume 6, number 2, 2021

Victor Kwaghgba Aho&Nevkar D.A,

Department of Vocational and Technical Education,

Benue State University, Makurdi

Email: ahovictor1@gmail.com, danielnevkar@gmail.com

ABSTRACT

The paper seeks to ascertain Technological Effect of Plastic on Climate Change in Nigeria. It confirms that plastic pollution is everywhere and is negatively impacting our environment. The Assessment confirms that larger plastics items like bottles and bags can physically harm animal and negatively affect their habitat and prevent crop from yielding. The study also revealed that, over 80 billion plastics Bottles are used every year and closeto 60 million plastics bags are used daily in Nigeria, while over 4 million tons of plastics waste are thrown away yearly. The researchers also discusses the role of Technology in fight against climate change and recommended that Government should ban illegal dumping of plastic waste and strategies places should be provided in dumping plastic waste. The researchers also suggest recycling as an effective weapon against climate change.

Key words; Assessment, Technological Effect, Climate Change, Plastics, Recycling

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  • August 9, 2021
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ARCHITECTS AND DEVELOPMENT CONTROL POLICY IMPLEMENTATION IN NIGERIA

Category : International Journal of Environmental Studies and Safety Research, volume 6, number 2, 2021

TachiaNambeh&YakubuYohannaAdamu

Department of Vocational & Technical Education, Benue State University, Makurdi

Department of Architecture, Bauchi State Polytechnic, Bauchi – Nigeria

Email: mfachia@gmail.com&yayadamu@yahoo.com

ABSTRACT

Development Control Departments have become a veritable tool in administering effective physical development of urban areas worldwide. The centrality of Architects in this administrative unit of urban governance cannot be over emphasized as they are the ones that conceive the vision that is finally translated into a built environment and as such need to be present as the process unfolds. The presence of architects and the level of their involvement in the development control process in Benue state was investigated in this research. It was discovered that there was a total absence of architects in any development control organ in the state, and architects were only invited from the state ministry of works, housing and urban development, from time to time during critical times to vet special submissions, for a few hours a day. This has created a poor urban environment in the state, with ugly landscapes, cityscapes and haphazard built environment. The building permit process itself is fraught with irregularities and abuse of process, creating a chaotic vista which portends difficulty in the near future of urban areas of the state given the rapid urbanization rate in the state. Recommendations were then given on how to stem the tide in the immediate and long term basis on how to reverse this trend.

Keywords: Development Control, Building Permits Process, Architect, Built Environment

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