Background: Respiratory problem is one of the major health hazards in dust-exposed workers; it is a major cause of morbidity and mortality all over the world. Objective: To determine the prevalence of respiratory problems and lung function impairment among quarry workers in Ebonyi State, Nigeria. Methods: Respiratory problems and lung function were studied in 403 quarry …
This survey was developed by the Center for Clean Products after touring approximately 15 stone quarries and processing facilities located throughout the United States, and through extensive consultation with industry experts and quarry operators. Choosing a diverse array of facilities
All over the world there is a realization that quarrying activities has evolved over time to mining industry that has the potential to provide hither to unparalleled services to management in their efforts to reduce effects of quarrying risks to the human being and the surroundings. This potentially has been turned into a challenge and embodied in the new definition of quarrying …
In order to identify the consequences of quarrying on the environment, a health risk assessment of the areas surrounding quarries in Southwest Nigeria was conducted. During …
Resource availability and extraction seem to present a paradox to most countries in the global south. It appears to be a curse rather than a blessing. Using the resource curse theory as a philosophical lens, this study qualitatively analysed the effects of the stone quarrying industry in the Wenchi municipality of Ghana. Using the case study approach, information was …
Quarrying by use Of Channeling Machines. In this method, the channeling machines are driven by steam, compressed air or electricity are used to make vertical or oblique grooves or channels on the rock mass, These machines make rapidly the grooves having a length of about, 24 m, a width of about 50 mm to 75 mm and depth of about 240 cm to 370 cm.
Quarrying of limestone in Nigeria. Some limestone quarrying companies include but are not limited to Rich Quarries Nigeria Limited, Crushed Rock Industries, and Stonehill Nigeria Limited, as there are more than hundreds of quarrying …
The hydrogeological effect of limestone extraction from open pits (quarries) depends on the location of the site in the landscape, the vertical and horizontal extent of the excavation, the methods ...
of the exploration and exploitation of solid minerals in Nigeria; and for related purposes. [2007 No. 50.] [29. th March, 2007] [Commencement.] ENACTED by the National Assembly of the Federal Republic of Nigeria. CHAPTER 1 . Minerals, Exploration, Mining and Quarrying. PART I . Ownership and Control of Minerals •
Twenty four (24) quarry soil-dust samples were collected within and outside the 12 rock aggregates and limestone quarries in southwestern Nigeria. Two samples from both inside and outside the quarry were regarded as uncontaminated and contaminated samples …
Publications related to the economics of individual quarries are mostly associated with the evaluation of investments, changes in quarry operations or optimization of quarry operations Analyses of ...
fraction for road pavement construction with case study of crushed stone samples from some selected quarry sites in western part of Nigeria. 1.1 Location of The Study Areas . The quarries for the production of crushed stone aggregates in the western states of Nigeria are mostly located near the parent rock material.
Quarries are used to source stone, sand, and aggregates, which are non-renewable materials. ... For example, quarrying bentonite uses about 965,000 l/y of oil, while transport could account for 612,427 l/y. As for releasing carbon …
It is observed that stone and riverbed mining adversely influences the density and diversity of insects living in small tropical Jatinga River passing through Dima Hasao and Cachar district of Assam (Chakravarty & Gupta, 2023). The wildlife sanctuary and forest close to rivers are also prone to adverse impacts caused by riverbed mining.
Stone aggregates are manufactured by crushing of raw stone boulders which are produced in stone quarries. The construction standards followed in India or elsewhere require the stone deposits and crushes aggregates qualify the criterion as regards uniaxial compressive strength, loose and bulk 29 boulders in the quarry and loading of crushed ...
Below are the sales projections for Joseph Ileaboya & Sons Stone Quarry Company, it is based on the location of our business and other factors as it relates to small scale and medium scale stone quarry company start – ups in Nigeria; First Fiscal Year-: N1million; Second Fiscal Year-: N2.5Million; Third Fiscal Year-: N5Million
discuss stone quarrying in nigeria T00:04:44+00:00 discuss stone quarrying in nigeria. discuss stone quarrying in nigeria Quarrying of limestone in Nigeria Some of limestone quarrying companies include but is not limited to Rich Quarries Nigeria Limited Crushed Rock Industries and Stonehill Nigeria Limited as there are more than hundreds of …
Qualitative Determination of the Mineralogical Composition of Sandstone in Amasiri Stone Quarry, Ebonyi, Nigeria Using X-ray Powder Diffraction Author(s): CM Ngwu, IE Otuokere and GU Nwaorgu. Qualitative determination of the mineralogical composition of sandstone in Amasiri Stone Quarry was performed using X-ray powder diffraction.
stone using heavy machinery, secure the stone on a vehicle for transport, and move the material to storage. A flow diagram of typical quarrying operations is shown in Figure 1. Figure 1. Process flow diagram for limestone quarrying operations. As shown in Figure 1, the first step in quarrying is to gain access to the limestone deposit. This is
The study were seek to investigate the impact of stone quarrying on the environment and societies. In this case, responses were sought from questionnaire, key informant interview and observation. 3.1. Social and Environmental Impact of Stone Quarrying Quarrying activity often have long-term social, and environmental impacts. Social challenges ...
PDF | On Sep 2, 2020, Charles I Osu published Impact of stone quarrying on the health of residents in Nigeria. | Find, read and cite all the research you need on ResearchGate
The increase in demand of building stones and construction-grade sand has resulted in aggressive hard rock quarrying in many parts of the world. The problems are to be evaluated in detail for the judicious use of resources on the one hand and ensuring health of the ecosystems on the other. The present study aims to evaluate the impact of hard rock …
SECTION ONE: Mining and Quarrying in Nigeria History of the Nigerian Mining and Quarrying Sector Mining and quarrying are the processes of extraction of naturally occurring stone or minerals such as coal, ores, crude petroleum and natural gas from the earth. In Nigeria, solid minerals are discussed
Moreover, 45% of the area residents and 44% of the quarry workers have experienced health problems related to quarrying activities. Nevertheless, there was a significant relationship between quarrying activities and the environmental as well as human health problems in the area (p<0.05). The positive impacts identified are; employment, roads ...
Chronic exposure to dust due to stone quarrying may increase the risk of respiratory problems and impaired lung function-cigarette smokers are at higher risk. BACKGROUND Respiratory problem is one of the major health …
The major environmental and socio-economic problems related to quarrying revealed during this study include, destroying the natural topography and vegetation, ruining biodiversity, dust …
4)Quarry sap: It is the moisture present in the quarried Stone 5)Line of least resistance: It is the horizontal distance between the outside the surface of Rock to the hole of blasting . Methods of quarrying: Quarrying is done by the following methods: 1)quarrying by hand tools 2)quarrying by channeling machine 3)quarrying by blasting
Targba and Dajo; AJAEES, 39(3): 75-84, 2021; Article no.AJAEES.62054 76 and ownership of means of transportation. The major factors limiting youth involvement in small- scale stone quarrying were lack of modern quarrying equipment, absence of personal protective gadgets and ignorance about government regulations in the mining industry. The study therefore …
The insatiable demand for rock supplies has enticed numerous building and construction enterprises to participate in stone quarrying. This paper examines the …
In Nigeria stone quarrying represents an unorganized sector of industry. Quarry-ing products are increasingly demanded for industrial, domestic, agricultural and other purposes to satisfy the needs of the rapidly growing population.3 The indus-try in Ebonyi State employs at least 1000