Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
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Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
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Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
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Sofol VSI Series vertical shaft impact crusher is designed by reputed German expert of Sofol and every…
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Dust storms frequently occur in the arid and semiarid zones of the world (Al-Dousari et al. 2013).Dust and dust storms have deeply affected the air quality and habitat environment and caused a series of disasters (Batjargal et al. 2006).A series of factors causing dust storms are wind, rainfall, deforestation, drought and land cover changes …
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However, people still know little about the electric potential and the dust environment around this crater. In this paper, we develop an analytical model to study the surface potential and the electrostatic dust transport around the crater. It is found that the crater's floor can be negatively charged due to the topographic shielding, and the ...
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Air is the worst affected environmental matrix, and it can carry the harmful effect of pollutants generated from mining activity even to distant places. ... Emission of respirable dust from stone quarrying, potential health effects, and its management Environ Sci Pollut Res Int. 2022 Jan;29(5):6670-6677. doi: 10.1007/s11356-021-16079-4. Epub ...
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Fugitive road dust (FRD) particles emitted by traffic-generated turbulence are an important contributor to urban ambient fine particulate matter (PM2.5). Especially in urban areas of developing countries, FRD PM2.5 emissions are a serious environmental threat to air quality and public health. FRD PM2.5 emissions have been neglected or …
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Large wildfires reduce vegetation cover and soil moisture, leaving the temporally degraded landscapes an emergent source of dust emission. However, the global extent of post-fire …
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Cement kiln dust (CKD), a byproduct of cement production, holds significant potential as a carbon sink. This review comprehensively examines the physical, chemical, and mineralogical characteristics of CKD, highlighting its suitability for carbon dioxide (CO 2) capture and sequestration.With a high calcium oxide content of 37–77% and notably …
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The g-factors of road dust EPFRs in Xi'an ranges from 2.0024 to 2.0036, suggesting they are mainly C-centered free radicals. EPFRs in road dust are degradable with the half-life of 4.5 years. Road dust is oxidatively toxic and the water-insoluble road dust fraction contributed 71% of the oxidative toxicity of road dust.
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Using synoptic data for the period 1974–2012, we analyzed the global trend of dust frequency and visibility-derived dust concentrations and their characteristics in key dust …
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apply the dust palliative that is appropriate for their particular site, traffic conditions, and climate. In addition, this publication describes the expected performance, limitations, and potential environmental impacts of various palliatives. This guide examines most of the commonly available dust palliatives currently available and
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Abstract. Dust particles from high latitudes have a potentially large local, regional, and global significance to climate and the environment as short-lived climate forcers, air pollutants, and nutrient sources. Identifying the locations of local dust sources and their emission, transport, and deposition processes is important for understanding …
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Environmental impacts and human health effects of Carbon-containing dust pollution ... The main source of Cu and Cr was coal dust, Hg has the greatest impact on potential ecological risks. which ...
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Plots display the three end-points a–d Depletion of natural resources, e–h Ecosystems and i–l Human health end-points for 12 nations with the collective potential to deliver net 0.5–2.0 Gt ...
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Section snippets Mine dust pollution and its environmental & health risks. As the world's resources continue to be exploited, mining activities are giving rise to increasing environmental damage and pollution, of which mine dust pollution is considered to be one of the biggest threats to environment and public health (Entwistle et al., 2019; …
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They then analyzed the dust for problematic elements. The results were often concerning, the team reported in 2022 in Environment International . In Indigenous communities in …
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Oxidative stress (OS) associated with metals in urban dust has become a public health concern. Chronic diseases linked to general inflammation are particularly affected by OS. This research analyzes the spatial distribution of metals associated with OS, the urban dust´s oxidative potential (OP), and the occurrence of diseases whose …
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intention of this study is to adapt the aerosol dynamics formulas governing lunar dust control mechanisms and present the differences quantitatively with respect to terrestrial cases. The focus has been on the mechanisms appropriate for potential implementation in the lunar environment. This study, therefore, provides a guideline for scientists and
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Mineral dust aerosols impact the energy budget of Earth through interactions with radiation, clouds, atmospheric chemistry, the cryosphere and biogeochemistry. In this Review, we …
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Dust control practices reduce the potential for construction activities to generate dust from disturbed soil surfaces. Construction sites can have large areas of soil disturbance and open space from which wind can pick up dust particles. Airborne particles pose a dual threat to the environment and human health. Dust that
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Dust control solutions that are practical to maintain have the greatest potential for sustained use and ultimately improved mine worker health and safety. The information provided is only a primer on dust control and injury prevention at metal/nonmetal mining operations.
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This document has, therefore, been produced to aid dust control and the reduction of disease. Whenever people inhale airborne dust at work, they are at risk of occupational disease. Year after year, both in developed and in developing countries, overexposure to dusts causes disease, temporary and permanent disabilities and deaths.
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A modern oasis, under threat. Say you climbed into a car at the edge of the Pacific and started driving east, tracing a line across the middle of the United States.
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3. Health damage caused by dust exposure in Beijing3.1. Premature mortalities and years of life lost. Between 2000 and 2011, the annual mean concentrations of PM 2.5 in Beijing fluctuated between 70 and 130 μg m −3, and the mean value was approximately 100 μg m −3 (Table 1).These inter-annual changes in PM 2.5 partially …
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Hay often contains high numbers of respirable dust particles (Robinson et al., 2001) and may therefore exacerbate equine respiratory problems (Harris, 1999).Soaking hay is a long-established practice, shown to reduce respirable particle numbers by up to 95% (Moore-Colyer, 1996, Blackman and Moore-Colyer, 1998).Soaking hay has one major …
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The hazard potential of dust sources; The exposure pathway between the source and receiving environment. The sensitivity of the receiving environment. What else do I need to know? Other features of the guide include: How to use case studies in assessments, Application of meteorological assessment, Assessments of many or …
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Dust suppressant limitations, application methods, and environmental impact in table 1 will further improve dust palliative selection. The flow diagram in figure 1 leads the practitioner to figure 2, a guide for determining the overall cost of the dust abatement program, including the yearly and potential multiyear cost of a dust abatement ...
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Note that it remains uncertain if the giant CCN, a potential role for the coarse-mode dust particle play, can increase the net precipitation, as they facilitate the warm rainfall but …
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Mining activities, including prospecting, exploration, construction, operation, maintenance, expansion, abandonment, decommissioning and repurposing of a mine can impact social and environmental systems in a range of positive and negative, and direct and indirect ways. Mining can yield a range of benefits to societies, but it may also …
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Large wildfires reduce vegetation cover and soil moisture, leaving the temporarily degraded landscapes as an emergent source of dust emissions and, in extreme …
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An exposure route exposure routeThe way a chemical pollutant enters an organism after contact, e.g., by ingestion, inhalation, or dermal absorption. is the way that a contaminant enters an individual or population after contact (IPCS, 2004). Typically, exposure occurs by one of three exposure routes—inhalation, ingestion, or dermal. …
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The purpose of this report is to summarize the current state of knowledge on the potential environmental impacts of chemical dust suppressants. Furthermore, the report summarizes the views of an Expert Panel that was convened on May 30-31, 2002 at the University of Nevada, Las Vegas to probe into the potential environmental issues …
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Volume 187, May 2024, 108708. Full length article. Sources and human health risks associated with potentially toxic elements (PTEs) in urban dust: A global perspective. …
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Dust-borne potential bacterial pathogens in summer were higher than those in winter. ... Dust is an oligotrophic environment with heavy metals (Ma et al. 2021) and other pollutants (Butte and Heinzow 2002). This "harsher" environment of dust resulted in the dominance of positive correlations between microbial ASVs detected in this study.
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Environmental health hazards; First aid and medical; Food safety; Home and ; Mosquitoes and pests; Water and wastewater; Alcohol-based hand sanitiser – safe use and storage; ... What is dust? Dust is a common air pollutant generated by many different sources and activities.
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The oxidative potential (OP) in dust samples was quantified with a dithiothreitol (DTT) assay to reflect the oxidizability of ROSs, and explore the relationship between environmental ROSs and oxidative stress in humans (using urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) as a biomarker).
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We estimate and compare 15 potential environmental impact indicators, including climate change impact (global warming potential), acidification potential, eutrophication potential, land use, ionising radiation, malodours air, and six variants of toxicological footprints associated with the production of basalt rock dust fertiliser and ...
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The size of particles is directly linked to their potential for causing health problems. Small particles less than 10 micrometers in diameter pose the greatest problems, because they can get deep into your lungs, and some may even get into your bloodstream. ... Environmental damage. Particles can be carried over long distances by wind and …
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Mining of minerals exerts adverse pressure on different compartments of environment directly or indirectly. Air is the worst affected environmental matrix, and it can carry the harmful effect of pollutants generated from mining activity even to distant places. The present study was undertaken to estimate the emission of particulate matter …
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PTE pollution from road dust is an important issue related to human health and has caused widespread concern (Duan et al., 2020).Owing to rapid industrialization and urbanization, PTE contamination in road dust is especially serious in China (Hu et al., 2020).Many studies have found that traffic intensity is closely related to the accumulation …
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Satellite measurements show that dust emission is enhanced following large wildfires, producing considerable dust loadings for days to weeks over normally dust-free regions. These sequential fire ...
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In November 2013, the total concentration of selected heavy metals in 43 urban dust samples, collected from two small-sized cities of industrial E'zhou and agricultural Huanggang, located in the southeastern Hubei province, central China, was detected quantitatively by flame atomic absorption spectrometric (FAAS) for ultimate …
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