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Vig N, Mor S, Ravindra K. The multiple value characteristics of fly ash from Indian coal thermal power plants: a review. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 195:33. [PMID: 36287250 DOI: 10.1007/s10661-022-10473-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 09/10/2022] [Indexed: 06/16/2023]
Abstract
Coal-powered thermal plants are the primary source of energy production around the globe. More than half (56.89%) of the Indian power plants use coal for power production. Coal burning in power plants results in coal combustion residuals, which contain coal fly ash (CFA) that is recognized as principle by-product. CFA is difficult to characterize due to its broad compositional variation. Hence, the present article summarizes the various physical, chemical, mineralogical, and petrological characterizations of CFA to its use in different applications. Indian coal thermal power plants are found to release two types of CFA: F (fine) and C (coarse). CFA particles are identified as unburned carbon particles with a large fraction of silica oxides, alumina oxides, and iron oxides with a small fraction of calcium oxide (CaO). Morphologically, CFA particles are spherical, with large carbon molecules and a smooth texture surface. In terms of mineralogy; quartz, mullite, magnetite, and hematite are the dominant mineral phases of CFA and tend to be non-plastic, with permeability levels ranging from 8 × 10-6 to 1.87 × 10-4 cms-1. Petrographically, CFA is enriched in inertinite and liptinites as well as collotelinite, collodetrinite, and vitrodetrinite particles. Moreover, CFA is found to be composed of various organic and inorganic particles. By virtue of multiple characterizations, it has been utilized in several applications for decades, which is still quite limited. Therefore, current study aim to provide helpful insights into the potential use of CFA-derived products in different ways to increase sustainability.
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Affiliation(s)
- Nitasha Vig
- Department of Environment Studies, Panjab University, Chandigarh, 160014, India
| | - Suman Mor
- Department of Environment Studies, Panjab University, Chandigarh, 160014, India.
| | - Khaiwal Ravindra
- Department of Community Medicine and School of Public Health, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India
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2
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Yao Z, Zhao T, Su W, You S, Wang CH. Towards understanding respiratory particle transport and deposition in the human respiratory system: Effects of physiological conditions and particle properties. JOURNAL OF HAZARDOUS MATERIALS 2022; 439:129669. [PMID: 35908402 PMCID: PMC9306224 DOI: 10.1016/j.jhazmat.2022.129669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 07/05/2022] [Accepted: 07/21/2022] [Indexed: 06/15/2023]
Abstract
Fly ash is a common solid residue of incineration plants and poses a great environmental concern because of its toxicity upon inhalation exposure. The inhalation health impacts of fly ash is closely related to its transport and deposition in the human respiratory system which warrants significant research for health guideline setting and inhalation exposure protection. In this study, a series of fly ash transport and deposition experiments have been carried out in a bifurcation airway model by optical aerosol sampling analysis. Three types of fly ash samples of different morphologies were tested and their respiratory deposition and transport processes were compared. The deposition efficiencies were calculated and relevant transport dynamics mechanisms were discussed. The influences of physiological conditions such as breathing rate, duration, and fly ash physical properties (size, morphology, and specific surface area) were investigated. The deposition characteristics of respiratory particles containing SARS-CoV-2 has also been analyzed, which could further provide some guidance on COVID-19 prevention. The results could potentially serve as a basis for setting health guidelines and recommending personal respiratory protective equipment for fly ash handlers and people who are in the high exposure risk environment for COVID-19 transmission.
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Affiliation(s)
- Zhiyi Yao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Tianyang Zhao
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, Create Tower, #15-02, 138602, Singapore
| | - Weiling Su
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Siming You
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, Create Tower, #15-02, 138602, Singapore; James Watt School of Engineering, University of Glasgow, G12 8QQ, Glasgow, United Kingdom
| | - Chi-Hwa Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
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3
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Petrović M, Fiket Ž. Environmental damage caused by coal combustion residue disposal: A critical review of risk assessment methodologies. CHEMOSPHERE 2022; 299:134410. [PMID: 35346741 DOI: 10.1016/j.chemosphere.2022.134410] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/22/2021] [Accepted: 03/22/2022] [Indexed: 06/14/2023]
Abstract
Coal combustion generates almost 40% of world's electricity. However, it also produces 1.1 billion tons of coal combustion residues (CCR) annually, half of which end up in landfills. Although current regulations require proper lining and monitoring programs, the ubiquitous old, abandoned landfills are often not lined nor included in these programs. In addition, the total number of coal ash disposal sites and their status in the world is unknown. Therefore, this article reviews the environmental damage caused by CCR and three commonly used risk assessment methodologies: leaching assessment, groundwater assessment, and toxicity testing. Leaching methods are usually the first step in coal ash risk assessment, however, a large number of methods with different parameters make a comparison of data difficult. Groundwater pollution is commonly detected near coal ash disposal sites, but other anthropogenic activities may also exist nearby. Therefore, multivariate statistical methods and isotope traces should be used to differentiate between different sources of pollution. So far, both stable (δ18O, δD, δ11B, δ34S, δ7Li) and radiogenic (87Sr/86Sr, 206Pb/207Pb) isotopes have been successfully used as coal ash pollution tracers. Coal ash also negatively affects biota, reduces the diversity of organisms, affects children's health, and increases the risk for developing various diseases. Toxicity studies are great for early screening of coal ash safety; however, they provide no insights into mechanisms causing the adverse effects. Future directions are also proposed, such as the development of new 'low-level' detection methods for coal ash pollution and sustainable and selective method for recovery of critical elements.
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Affiliation(s)
- Marija Petrović
- Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička Cesta 54, HR-10000, Zagreb, Croatia
| | - Željka Fiket
- Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička Cesta 54, HR-10000, Zagreb, Croatia.
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4
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Utilization of Incense Stick Ash in Hydrometallurgy Methods for Extracting Oxides of Fe, Al, Si, and Ca. MATERIALS 2022; 15:ma15051879. [PMID: 35269110 PMCID: PMC8911598 DOI: 10.3390/ma15051879] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 02/08/2022] [Accepted: 02/11/2022] [Indexed: 01/01/2023]
Abstract
With rapid industrialization, there is an ever-increasing demand for iron oxides, calcium oxides, aluminum oxides, silica, and zeolites as raw materials for various industries, but reserves of such metal oxides are continuously diminishing. Therefore, there is an urgent need to explore new alternatives for such value-added minerals. One such material is incense stick ash (ISA), which is among the most unexplored byproducts from residential and holy places. Currently, ISA is of no use and it is disposed of in millions of tons (MTs) in rivers and other water bodies in India due to its sacred value. The major chemical composition of ISA is calcium, silica, alumina, ferrous minerals, magnesium, and traces of Na, K, P, Ti, etc. Major fractions of ISA, i.e., 50–60%, are made up of calcium and magnesium oxides; 20–30% of ISA is made up of silica, alumina, and ferrous minerals, as revealed by X-ray fluorescence spectroscopy (XRF). In the present research work, methods of recovery of value-added micro and nano minerals from ISA are suggested, using cost-effective techniques and an eco-friendly approach. Firstly, magnetic fractions were recovered by a magnetic separation method; then, alumina, silica, and calcium oxides were synthesized from non-magnetic fractions. The confirmation of the synthesized and extracted nanomaterials was done by Fourier transform infrared spectroscopy (FTIR), particle size analyzer (PSA), X-ray diffraction (XRD), field emission scanning electron microscopy with electron diffraction spectroscopy (FESEM-EDS), and transmission electron microscopy (TEM). The purity of synthesized particles varied from 40–80%. In the future, ISA will prove to be an alternative resource material for Fe, Ca, Si, C, Al, and zeolites, which will minimize solid waste pollution and water pollution arising due to the disposal of ISA into water bodies.
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Remediation of Azure A Dye from Aqueous Solution by Using Surface-Modified Coal Fly Ash Extracted Ferrospheres by Mineral Acids and Toxicity Assessment. ADSORPT SCI TECHNOL 2022. [DOI: 10.1155/2022/7012889] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The Indian coal fly ash (CFA) is composed of 5-15% ferrous fractions. The variation in percentage depends on the source of coal and the operating conditions of the thermal power plants. The present research work reports the recovery of ferrous particles from CFA by the wet magnetic separation method. The morphological, elemental, and chemical properties of the extracted ferrous fractions were analyzed. In order to achieve surface-modified ferrospheres, the extracted ferrospheres were treated with concentrated HCl followed by sonication. The instrumental analysis reported the ferrous composition is around 16% by weight and belongs to class F. The toxicity of CFA was determined on normal human lung (BEAS-2B) cells using MTS assay. The results showed that CFA’s induced cell toxicity in a dose-dependent manner. The ferrous particles were spherically shaped with various sizes ranging from 200 nm to 7000 nm. It was crystalline in nature and is a mixture of hematite and magnetite. The particles were found to be associated with alumina, silica, oxygen, and traces of Ca, Mg, Ti, and C. The surface-modified ferrospheres were used for the remediation of Azure A dye by batch adsorption study. The removal percentage of dye was 25.03%, within 30 minutes at neutral pH, i.e., 7.2. The surface-modified ferrospheres show potential as an alternate, more economical, and reusable adsorbent for the remediation of Azure A dye in the industries or in common effluent treatment plants. Moreover, the recovery of surface-modified ferrospheres using an external magnet and the reuse of the particles make the material much economical for dye removal at an industrial scale.
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Ré A, Rocha AT, Campos I, Keizer JJ, Gonçalves FJM, Oliveira H, Pereira JL, Abrantes N. Cytotoxic effects of wildfire ashes: In-vitro responses of skin cells. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 285:117279. [PMID: 33971424 DOI: 10.1016/j.envpol.2021.117279] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/13/2021] [Accepted: 04/27/2021] [Indexed: 06/12/2023]
Abstract
Wildfires are a complex environmental problem worldwide. The ashes produced during the fire bear metals and PAHs with high toxicity and environmental persistence. These are mobilized into downhill waterbodies, where they can impair water quality and human health. In this context, the present study aimed at assessing the toxicity of mimicked wildfire runoff to human skin cells, providing a first view on the human health hazardous potential of such matrices. Human keratinocytes (HaCaT) were exposed to aqueous extracts of ashes (AEA) prepared from ash deposited in the soil after wildfires burned a pine or a eucalypt forest stand. Cytotoxicity (MTT assay) and changes in cell cycle dynamics (flow cytometry) were assessed. Cell viability decreased with increasing concentrations of AEA, regardless of the ash source, the extracts preparation method (filtered or unfiltered to address the dissolved or the total fractions of contaminants, respectively) or the exposure period (24 and 48 h). The cells growth was also negatively affected by the tested AEA matrices, as evidenced by a deceleration of the progress through the cell cycle, namely from phase G0/G1 to G2. The cytotoxicity of AEA could be related to particulate and dissolved metal content, but the particles themselves may directly affect the cell membrane. Eucalypt ash was apparently more cytotoxic than pine ash due to differential ash metal burden and mobility to the water phase. The deceleration of the cell cycle can be explained by the attempt of cells to repair metal-induced DNA damage, while if this checkpoint and repair pathways are not well coordinated by metal interference, genomic instability may occur. Globally, our results trigger public health concerns since the burnt areas frequently stand in slopes of watershed that serve as recreation sites and sources of drinking water, thus promoting human exposure to wildfire-driven contamination.
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Affiliation(s)
- Ana Ré
- CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal; Department of Biology, University of Aveiro, Aveiro, Portugal
| | | | - Isabel Campos
- CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal; Department of Environment and Planning, University of Aveiro, Aveiro, Portugal
| | - Jan Jacob Keizer
- CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal; Department of Environment and Planning, University of Aveiro, Aveiro, Portugal
| | - Fernando J M Gonçalves
- CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal; Department of Biology, University of Aveiro, Aveiro, Portugal
| | - Helena Oliveira
- CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal; Department of Biology, University of Aveiro, Aveiro, Portugal
| | - Joana Luísa Pereira
- CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal; Department of Biology, University of Aveiro, Aveiro, Portugal.
| | - Nelson Abrantes
- CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal; Department of Environment and Planning, University of Aveiro, Aveiro, Portugal
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Zhang R, Liu S, Zheng S. Characterization of nano-to-micron sized respirable coal dust: Particle surface alteration and the health impact. JOURNAL OF HAZARDOUS MATERIALS 2021; 413:125447. [PMID: 33618271 DOI: 10.1016/j.jhazmat.2021.125447] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/08/2021] [Accepted: 02/14/2021] [Indexed: 05/05/2023]
Abstract
Chemical and physical properties of coal dust particles significantly influence the inhalation of respirable coal dust by miners, causing several lung diseases such as coal workers' pneumoconiosis (CWP) and silicosis. Multiple experimental techniques, including proximate/ultimate analyses, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), laser diffraction, and low-pressure CO2 and N2 adsorption, were used to investigate the chemical and physical properties of micron-/nano-coal particles comprehensively. Compared to the micron-scale coal dust, the nano-coal dust (prepared by cryogenic ballmill) shows the increase of carbon content and aromaticity and a decrease of oxygen content along with the reduction of oxygen-containing functional groups. Pore volume and surface area estimated by low-pressure CO2 and N2 adsorption have more than five-time increase for the nano-coal dust. The reduction of oxygen functional groups suggests the dropped wetting behavior of coal nanoparticles. The significantly increased pore volume and surface area in coal nanoparticles could be caused by the enhanced pore interconnectivity on the particle surface and the alteration of coal macromolecules. Weaker wettability and the highly enhanced surface area suggest potentially more significant toxicity of nano-coal dust inhaled by coal miners.
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Affiliation(s)
- Rui Zhang
- Department of Energy and Mineral Engineering, G(3) Center and Energy Institute, Pennsylvania State University, University Park, PA 16802, USA
| | - Shimin Liu
- Department of Energy and Mineral Engineering, G(3) Center and Energy Institute, Pennsylvania State University, University Park, PA 16802, USA.
| | - Siyang Zheng
- Department of Biomedical Engineering, Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA 15090, USA
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Rozhina E, Ishmukhametov I, Nigamatzyanova L, Akhatova F, Batasheva S, Taskaev S, Montes C, Lvov Y, Fakhrullin R. Comparative Toxicity of Fly Ash: An In Vitro Study. Molecules 2021; 26:molecules26071926. [PMID: 33808134 PMCID: PMC8038091 DOI: 10.3390/molecules26071926] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 01/25/2023] Open
Abstract
Fly ash produced during coal combustion is one of the major sources of air and water pollution, but the data on the impact of micrometer-size fly ash particles on human cells is still incomplete. Fly ash samples were collected from several electric power stations in the United States (Rockdale, TX; Dolet Hill, Mansfield, LA; Rockport, IN; Muskogee, OK) and from a metallurgic plant located in the Russian Federation (Chelyabinsk Electro-Metallurgical Works OJSC). The particles were characterized using dynamic light scattering, atomic force, and hyperspectral microscopy. According to chemical composition, the fly ash studied was ferro-alumino-silicate mineral containing substantial quantities of Ca, Mg, and a negligible concentration of K, Na, Mn, and Sr. The toxicity of the fly ash microparticles was assessed in vitro using HeLa cells (human cervical cancer cells) and Jurkat cells (immortalized human T lymphocytes). Incubation of cells with different concentrations of fly ash resulted in a dose-dependent decrease in cell viability for all fly ash variants. The most prominent cytotoxic effect in HeLa cells was produced by the ash particles from Rockdale, while the least was produced by the fly ash from Chelyabinsk. In Jurkat cells, the lowest toxicity was observed for fly ash collected from Rockport, Dolet Hill and Muscogee plants. The fly ash from Rockdale and Chelyabinsk induced DNA damage in HeLa cells, as revealed by the single cell electrophoresis, and disrupted the normal nuclear morphology. The interaction of fly ash microparticles of different origins with cells was visualized using dark-field microscopy and hyperspectral imaging. The size of ash particles appeared to be an important determinant of their toxicity, and the smallest fly ash particles from Chelyabinsk turned out to be the most cytotoxic to Jukart cells and the most genotoxic to HeLa cells.
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Affiliation(s)
- Elvira Rozhina
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml Uramı 18, 420008 Kazan, Republic of Tatarstan, Russia; (E.R.); (I.I.); (L.N.); (F.A.); (S.B.)
| | - Ilnur Ishmukhametov
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml Uramı 18, 420008 Kazan, Republic of Tatarstan, Russia; (E.R.); (I.I.); (L.N.); (F.A.); (S.B.)
| | - Läysän Nigamatzyanova
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml Uramı 18, 420008 Kazan, Republic of Tatarstan, Russia; (E.R.); (I.I.); (L.N.); (F.A.); (S.B.)
| | - Farida Akhatova
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml Uramı 18, 420008 Kazan, Republic of Tatarstan, Russia; (E.R.); (I.I.); (L.N.); (F.A.); (S.B.)
| | - Svetlana Batasheva
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml Uramı 18, 420008 Kazan, Republic of Tatarstan, Russia; (E.R.); (I.I.); (L.N.); (F.A.); (S.B.)
| | - Sergey Taskaev
- Physics Department, Chelyabinsk State University, 129 Bratiev Kashirinykh St., 454001 Chelyabinsk, Russia;
| | - Carlos Montes
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA 71272, USA; (C.M.); (Y.L.)
| | - Yuri Lvov
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA 71272, USA; (C.M.); (Y.L.)
| | - Rawil Fakhrullin
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml Uramı 18, 420008 Kazan, Republic of Tatarstan, Russia; (E.R.); (I.I.); (L.N.); (F.A.); (S.B.)
- Correspondence:
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9
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Enrichment Mechanisms of Gallium and Indium in No. 9 Coals in Anjialing Mine, Ningwu Coalfield, North China, with a Preliminary Discussion on Their Potential Health Risks. MINERALS 2021. [DOI: 10.3390/min11010064] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
To provide a comprehensive insight into the enrichment mechanism of gallium and indium in No. 9 coals, eighteen samples were collected from Anjialing mine, Ningwu Coalfield, Shanxi Province for coal petrological, mineralogical and geochemical analyses. The results suggested that Ga and In enrichment mainly hosted in the top horizons, with average concentration coefficients of 8.99 and 2.73 respectively, compared with the rest of horizons (2.46 for Ga and 1.69 for In). Source apportionment indicated that Ga and In were mainly derived from bauxite of Benxi Formation in Yinshan Oldland, while In could originate from felsic magmatic rocks in Yinshan Oldland as well. In addition, weak oxidation condition, medium to intensive weathering, transgression and input of terrestrial higher plants had positive effects on Ga and In enrichment. With the rapid expansion of emerging electronics manufacturing, Ga and In, of which potential risks on human health were neglected previously, were recently considered as hazardous elements. Therefore, this paper also discussed the potential pathways that these elements threatened human health. We suggested that potential risks on environment and human health caused by Ga and In enrichment in coals and coal-related products should be taken into account besides their economic value.
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10
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Liu T, Liu S. The impacts of coal dust on miners' health: A review. ENVIRONMENTAL RESEARCH 2020; 190:109849. [PMID: 32763275 DOI: 10.1016/j.envres.2020.109849] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 05/14/2020] [Accepted: 06/16/2020] [Indexed: 05/28/2023]
Abstract
As one of the most important energy resources in the world, coal contributes a great deal to the world economy. Coal mining and processing involve multiple dust generation processes including coal cutting, transport, crushing and milling etc. Coal dust is one of the main sources of health hazard for the coal workers. Exposure of coal dusts can be prevented through administrative controls and engineering controls. Ineffective control of coal dust exposure can harm coal workers' health. Although many efforts have been made to eliminate these threats, recent years have seen an unexpected increase in coal workers' pneumoconiosis (CWP) in Appalachian basin in US. To explore the reasons for this phenomenon, in this review, we first reviewed the historical studies on coal mine dust including the regulation and engineering controls. Then, the effects of coal dust on human health was comprehensively reviewed. Next, the effects of nanoparticles on human health were reviewed, with an emphasis on toxicity of nanoparticles such as carbon nanotubes in other industries. From all this information, we hypothesize that nano-sized coal dust has contributed to the increase of CWP prevalence in recent years. As no research has been reported in this area, four directions which may need further investigation and future studies are recommended in this review. They include: 1) Systematic characterization of physicochemical properties of nano-size coal dust; 2) Toxicity and pathogenesis of nano-sized coal dust; 3) Development of real-time monitoring technology and equipment for nano-sized coal dust; 4) Development of exposure control technology and equipment. The intent of this review paper is to demonstrate the variation of coal dust properties and their impact on the mine worker's health. We suggest that the impact of nano-sized coal mine dust on miner's health has not yet been understood well and further improvements are necessary.
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Affiliation(s)
- Ting Liu
- School of Safety Engineering, China University of Mining & Technology, Xuzhou, 221116, China; Department of Energy and Mineral Engineering, G3 Center and EMS Energy Institute, The Pennsylvania State University, University Park, PA, USA
| | - Shimin Liu
- Department of Energy and Mineral Engineering, G3 Center and EMS Energy Institute, The Pennsylvania State University, University Park, PA, USA.
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11
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Wang N, Sun X, Zhao Q, Yang Y, Wang P. Leachability and adverse effects of coal fly ash: A review. JOURNAL OF HAZARDOUS MATERIALS 2020; 396:122725. [PMID: 32353729 DOI: 10.1016/j.jhazmat.2020.122725] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 04/10/2020] [Accepted: 04/11/2020] [Indexed: 06/11/2023]
Abstract
Coal fly ash (CFA) is a valuable industrial solid waste, but conventional methods used for its disposal can lead to serious and long-lasting environmental issues. The study of technologies for CFA recycling has been of major concern, while the harm caused by CFA is only partially understood, limiting its reuse. In this review, the basic physico-chemical properties of CFA are introduced, followed by a systematic summary and discussion of the leachability of CFA via different leaching methods and the chemical speciation of some typical metal elements in CFA, which is related to its harmful effects. The specific harm that CFA causes to humans, wild animals, and plants and the study status of magnetic property of CFA are presented. Because of the pervasive concerns of many people, the utilisation of CFA in the USA and Europe and an economic and environmental analysis of its disposal is provided and discussed. Finally, some possible directions for future research involving CFA are proposed.
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Affiliation(s)
- Nannan Wang
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, PR China.
| | - Xiyu Sun
- School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Qiang Zhao
- Beijing BHT Environment Technology Co. Ltd., Beijing, 100102, PR China
| | - Ying Yang
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, PR China
| | - Peng Wang
- School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
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12
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Al Zallouha M, Landkocz Y, Méausoone C, Ledoux F, Visade F, Cazier F, Martin PJ, Borgie M, Vitagliano JJ, Trémolet G, Cailliez JC, Gosset P, Courcot D, Billet S. A prospective pilot study of the T-lymphocyte response to fine particulate matter exposure. J Appl Toxicol 2020; 40:619-630. [PMID: 31975422 DOI: 10.1002/jat.3932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Exposure to air pollution is associated with increased morbidity and mortality. Once the fine atmospheric particulate matter (FP) is inhaled, some of its compounds can pass through the lungs and reach the bloodstream where they can come into contact with immune cells. Exposure to FP particularly affects sensitive populations such as the elderly. Aging affects the immune system, making the elderly more vulnerable. The project aims to determine the effects of FP exposure on human T cells while looking for biomarkers associated with exposure. Blood samples from 95 healthy subjects in three different age groups (20-30, 45-55 and 70-85 years) were collected to determine a potential age effect. T lymphocytes were isolated to be exposed ex vivo for 72 hours to 45 μg/mL of FP collected in Dunkirk and chemically characterized. Overexpression of the CYP1A1, CYP1B1 and CYP2S1 genes was therefore measured after exposure of the T cells to FP. These genes code for enzymes known to be involved in the metabolic activation of organic compounds such as polycyclic aromatic hydrocarbons detected in the FP sample. T-cell profiling allowed us to suggest a mixed T-helper 1/2 profile caused by exposure to FP. With regard to the influence of age, we have observed differences in the expression of certain genes, as well as an increase in interleukin-4 and -13 concentrations in the elderly. These results showed that exposure of T lymphocytes to FP causes effects on both transcriptomic and cytokine secretion levels.
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Affiliation(s)
- Margueritta Al Zallouha
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | - Yann Landkocz
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | - Clémence Méausoone
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | - Fréderic Ledoux
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | - Fabien Visade
- Service de gériatrie, Groupement des Hôpitaux de l'Institut Catholique de Lille, Lille, France
| | - Fabrice Cazier
- Centre Commun de Mesures, Université Littoral Côte d'Opale, Dunkerque, France
| | - Perrine J Martin
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | - Mireille Borgie
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | - Jean-Jacques Vitagliano
- Direction de la Recherche Médicale, Groupement des Hôpitaux de l'Institut Catholique de Lille, Lille, France
| | - Gauthier Trémolet
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | | | - Pierre Gosset
- Service d'Anatomie pathologique, Groupement des Hôpitaux de l'Institut Catholique de Lille, Lille, France
| | - Dominique Courcot
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | - Sylvain Billet
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
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13
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Awoyemi OM, Adeleke EO, Dzantor EK. Arbuscular mycorrhizal fungi and exogenous glutathione mitigate coal fly ash (CFA)-induced phytotoxicity in CFA-contaminated soil. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 237:449-456. [PMID: 30825778 DOI: 10.1016/j.jenvman.2019.02.103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 02/17/2019] [Accepted: 02/21/2019] [Indexed: 06/09/2023]
Abstract
Coal fly ash (CFA) makes a bulk of the coal combustion wastes generated from coal-fired power plants. There are several environmental mishaps due to coal ash spills around the world and in the United States. Management of CFA-polluted sites has proven inefficient resulting in soil infiltration, leaching, and phytotoxicity. This study assessed the mitigation strategies for CFA-induced phytotoxicity using biological [arbuscular mycorrhizal fungi (AMF)] and chemical [exogenous glutathione (GSH)] agents. Indices of phytotoxicity include seed germination, plant morphometrics, lipid peroxidation and genomic double-stranded DNA (dsDNA) in switchgrass plant (Panicum virgatum). Experiments include laboratory screening (0, 5, 10, 15 and 20% w/w CFA/soil) and greenhouse pot study (0, 7.5 and 15% w/w CFA/soil) culturing switchgrass plant in Armour silt loam soil co-applied with AMF (Rhizophagus clarus) and GSH. Experiments showed that CFA exposure caused a concentration-dependent increase in seed germination. 10% CFA increased seedling growth while 15 and 20% CFA decreased seedling growth and induced leaf chlorosis. Furthermore, CFA (7.5 and 15%) in the 90-d pot study significantly (p < 0.05) impaired plant growth, induced lipid peroxidation and reduced genomic dsDNA. However, the incorporation of AMF or GSH enhanced seed germination, plant growth, and/or genomic dsDNA, reduced lipid peroxidation and prevented leaf chlorosis in CFA-exposed switchgrass plant. This study demonstrates that AMF and GSH have the potential to mitigate CFA-induced phytotoxicity. These biological and chemical strategies could be further harnessed for efficient utilization of switchgrass plant in the phytoremediation of CFA contaminated soil environment while simultaneously limiting CFA-induced phytotoxicity.
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Affiliation(s)
- Olushola M Awoyemi
- Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX, 79416, USA; Department of Agricultural and Environmental Sciences, College of Agriculture, Tennessee State University, Nashville, TN, 37209, USA.
| | - Ekundayo O Adeleke
- Department of Agricultural and Environmental Sciences, College of Agriculture, Tennessee State University, Nashville, TN, 37209, USA
| | - E Kudjo Dzantor
- Department of Agricultural and Environmental Sciences, College of Agriculture, Tennessee State University, Nashville, TN, 37209, USA
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14
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León-Mejía G, Luna-Rodríguez I, Trindade C, Oliveros-Ortíz L, Anaya-Romero M, Luna-Carrascal J, Navarro-Ojeda N, Ruiz-Benitez M, Franco-Valencia K, Da Silva J, Henriques JAP, Muñoz-Acevedo A, Quintana-Sosa M. Cytotoxic and genotoxic effects in mechanics occupationally exposed to diesel engine exhaust. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 171:264-273. [PMID: 30612014 DOI: 10.1016/j.ecoenv.2018.12.067] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 12/02/2018] [Accepted: 12/21/2018] [Indexed: 06/09/2023]
Abstract
Diesel engine exhaust (DEE), which is the product of diesel combustion, is considered carcinogenic in humans. It comprises toxic gases, polycyclic aromatic hydrocarbons (PAHs) and particulate matter which can reach the pulmonary parenchyma and trigger various diseases, including cancer. The aim of the present study was to evaluate the potential cytotoxic and genotoxic effects of DEE exposure on peripheral blood and buccal epithelial cells in mechanics occupationally exposed to DEE. We recruited 120 exposed mechanics and 100 non-exposed control individuals. Significant differences were observed between the two groups in terms of percentage of tail DNA and damage index (DI) in the alkaline comet assay; levels of biomarkers by cytokinesis-block micronucleus cytome (CBMN-Cyt) assay; frequency of micronucleus (MN), nucleoplasmic bridge (NPB), nuclear bud (NBUD) and apoptotic cells (APOP) and levels of biomarkers for micronucleus, karyorrhexis (KRX), karyolysis (KRL) and condensed chromatin (CC) by the buccal micronucleus cytome (BM-Cyt) assay. A significant and positive correlation was found between the frequency of MN in lymphocytes and buccal cells in the exposed group. Also, there was a significant correlation between age and percentage of tail DNA and DI in the comet assay, APOP and MN in the CBMN-Cyt assay and NBUD and MN in the BM-Cyt assay. Additionally, we found a positive and significant correlation of MN frequency in lymphocytes and buccal cells and age and MN frequency in lymphocytes with the time of service (years). Regarding lifestyle-related factors, a significant correlation was observed between meat and vitamin consumption and NBUD formation on CBMN-Cyt and between meat consumption and MN formation on CBMN-Cyt. Of the BM-Cyt biomarkers, there was a correlation between alcohol consumption and NBUD formation and between binucleated cell (BN), pyknosis (PYC), CC and KRL occurrence and family cancer history. These results are the first data in Colombia on the cytotoxic and genotoxic effects induced by continuous exposure to DEE and thus showed the usefulness of biomarkers of the comet, CBMN-Cyt and BM-Cyt assays for human biomonitoring and evaluation of cancer risk in the exposed populations.
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Affiliation(s)
- Grethel León-Mejía
- Universidad Simón Bolívar, Facultad de Ciencias Básicas y Biomédicas, Barranquilla, Colombia.
| | - Ibeth Luna-Rodríguez
- Universidad Simón Bolívar, Facultad de Ciencias Básicas y Biomédicas, Barranquilla, Colombia
| | - Cristiano Trindade
- Universidad Simón Bolívar, Facultad de Ciencias Básicas y Biomédicas, Barranquilla, Colombia
| | - Ludis Oliveros-Ortíz
- Universidad Simón Bolívar, Facultad de Ciencias Básicas y Biomédicas, Barranquilla, Colombia
| | - Marco Anaya-Romero
- Universidad Simón Bolívar, Facultad de Ciencias Básicas y Biomédicas, Barranquilla, Colombia
| | - Jaime Luna-Carrascal
- Universidad Simón Bolívar, Facultad de Ciencias Básicas y Biomédicas, Barranquilla, Colombia
| | - Nebis Navarro-Ojeda
- Universidad Simón Bolívar, Facultad de Ciencias Básicas y Biomédicas, Barranquilla, Colombia
| | - Martha Ruiz-Benitez
- Universidad Simón Bolívar, Facultad de Ciencias Básicas y Biomédicas, Barranquilla, Colombia
| | - Karen Franco-Valencia
- Universidad Simón Bolívar, Facultad de Ciencias Básicas y Biomédicas, Barranquilla, Colombia
| | - Juliana Da Silva
- Laboratório de Genética Toxicológica, Universidade Luterana do Brasil (ULBRA), Canoas, RS, Brazil
| | - João Antônio Pêgas Henriques
- Departamento de Biofísica, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Amner Muñoz-Acevedo
- Grupo de Investigación en Química y Biología, Universidad del Norte, Barranquilla, Colombia
| | - M Quintana-Sosa
- Universidad Simón Bolívar, Facultad de Ciencias Básicas y Biomédicas, Barranquilla, Colombia.
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15
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Li J, Ran J, Chen LC, Costa M, Huang Y, Chen X, Tian L. Bituminous coal combustion and Xuan Wei Lung cancer: a review of the epidemiology, intervention, carcinogens, and carcinogenesis. Arch Toxicol 2019; 93:573-583. [PMID: 30649585 DOI: 10.1007/s00204-019-02392-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 01/10/2019] [Indexed: 12/27/2022]
Abstract
Indoor air pollution from bituminous coal combustion has been linked to the extremely high lung cancer rates of nonsmoking women in Xuan Wei County, Yunnan Province, China. Venting the smoke outdoors by installing chimneys was found to be effective at reducing the lung cancer risk in a cohort study of 21,232 farmers in central Xuan Wei. However, the lung cancer mortality rates in all 1.2 million residents of Xuan Wei have been increasing dramatically over the last four decades. It was higher than that in Yunnan Province and China overall, with significant heterogeneities in the geographic patterns of Xuan Wei. Intervention measures targeting certain types of coal or certain carcinogenic components in coal smoke need to be explored. To inform targeted intervention policies, it is essential to pinpoint the specific substance (particulate matter, organic extract, PAHs, free radicals, crystalline silica, and inorganic matter) that might account for the carcinogenicity of bituminous coal smoke. Exploring the underlying carcinogenesis mechanisms would also contribute to the intervention and control of the lung cancer epidemic in Xuan Wei, China. Here we review the suspected carcinogens and carcinogenesis mechanisms and discuss future research directions towards a better understanding of the etiology of lung cancer in Xuan Wei, China.
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Affiliation(s)
- Jinhui Li
- Li Ka Shing Faculty of Medicine, School of Public Health, The University of Hong Kong, 7 Sassoon Road, Pokfulam, Hong Kong SAR, China.,Department of Environmental Medicine, New York University, New York, USA
| | - Jinjun Ran
- Li Ka Shing Faculty of Medicine, School of Public Health, The University of Hong Kong, 7 Sassoon Road, Pokfulam, Hong Kong SAR, China
| | - Lung-Chi Chen
- Department of Environmental Medicine, New York University, New York, USA
| | - Max Costa
- Department of Environmental Medicine, New York University, New York, USA
| | - Yunchao Huang
- Cancer Research Institute of Yunnan Province, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital), Kunming, Yunnan, People's Republic of China
| | - Xiao Chen
- Cancer Research Institute of Yunnan Province, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital), Kunming, Yunnan, People's Republic of China
| | - Linwei Tian
- Li Ka Shing Faculty of Medicine, School of Public Health, The University of Hong Kong, 7 Sassoon Road, Pokfulam, Hong Kong SAR, China.
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16
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Geitner NK, Cooper JL, Avellan A, Castellon BT, Perrotta BG, Bossa N, Simonin M, Anderson SM, Inoue S, Hochella MF, Richardson CJ, Bernhardt ES, Lowry GV, Ferguson PL, Matson CW, King RS, Unrine JM, Wiesner MR, Hsu-Kim H. Size-Based Differential Transport, Uptake, and Mass Distribution of Ceria (CeO 2) Nanoparticles in Wetland Mesocosms. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:9768-9776. [PMID: 30067347 DOI: 10.1021/acs.est.8b02040] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Trace metals associated with nanoparticles are known to possess reactivities that are different from their larger-size counterparts. However, the relative importance of small relative to large particles for the overall distribution and biouptake of these metals is not as well studied in complex environmental systems. Here, we have examined differences in the long term fate and transport of ceria (CeO2) nanoparticles of two different sizes (3.8 vs 185 nm), dosed weekly to freshwater wetland mesocosms over 9 months. While the majority of CeO2 particles were detected in soils and sediments at the end of nine months, there were significant differences observed in fate, distribution, and transport mechanisms between the two materials. Small nanoparticles were removed from the water column primarily through heteroaggregation with suspended solids and plants, while large nanoparticles were removed primarily by sedimentation. A greater fraction of small particles remained in the upper floc layers of sediment relative to the large particles (31% vs 7%). Cerium from the small particles were also significantly more bioavailable to aquatic plants (2% vs 0.5%), snails (44 vs 2.6 ng), and insects (8 vs 0.07 μg). Small CeO2 particles were also significantly reduced from Ce(IV) to Ce(III), while aquatic sediments were a sink for untransformed large nanoparticles. These results demonstrate that trace metals originating from nanoscale materials have much greater potential than their larger counterparts to distribute throughout multiple compartments of a complex aquatic ecosystem and contribute to the overall bioavailable pool of the metal for biouptake and trophic transfer.
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Affiliation(s)
- Nicholas K Geitner
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil and Environmental Engineering Department , Duke University , Durham , North Carolina 27708 , United States
| | - Jane L Cooper
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil and Environmental Engineering Department , Duke University , Durham , North Carolina 27708 , United States
| | - Astrid Avellan
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil & Environmental Engineering , Carnegie Mellon University , Pittsburgh , Pennsylvania 15213 , United States
| | - Benjamin T Castellon
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Environmental Science , Baylor University , Waco , Texas 76706 , United States
| | - Brittany G Perrotta
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Biology , Baylor University , Waco , Texas 76706 , United States
| | - Nathan Bossa
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil and Environmental Engineering Department , Duke University , Durham , North Carolina 27708 , United States
| | - Marie Simonin
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Biology , Duke University , Durham , North Carolina 27708 , United States
| | - Steven M Anderson
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Biology , Duke University , Durham , North Carolina 27708 , United States
| | - Sayako Inoue
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Geosciences , Virginia Polytechnic Institute and State University , Blacksburg , Virginia 24061 , United States
| | - Michael F Hochella
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Geosciences , Virginia Polytechnic Institute and State University , Blacksburg , Virginia 24061 , United States
- Energy and Environment Directorate Pacific Northwest National Laboratory Richland , Washington 99354 , United States
| | - Curtis J Richardson
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Nicholas School of the Environment , Duke University , Durham , North Carolina 27708 , United States
| | - Emily S Bernhardt
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Biology , Duke University , Durham , North Carolina 27708 , United States
| | - Gregory V Lowry
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil & Environmental Engineering , Carnegie Mellon University , Pittsburgh , Pennsylvania 15213 , United States
| | - P Lee Ferguson
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil and Environmental Engineering Department , Duke University , Durham , North Carolina 27708 , United States
| | - Cole W Matson
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Environmental Science , Baylor University , Waco , Texas 76706 , United States
| | - Ryan S King
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Biology , Baylor University , Waco , Texas 76706 , United States
| | - Jason M Unrine
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Plant and Soil Sciences , University of Kentucky , Lexington , Kentucky 40506 , United States
| | - Mark R Wiesner
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil and Environmental Engineering Department , Duke University , Durham , North Carolina 27708 , United States
| | - Heileen Hsu-Kim
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil and Environmental Engineering Department , Duke University , Durham , North Carolina 27708 , United States
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17
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da Silva Júnior FMR, Tavella RA, Fernandes CLF, Soares MCF, de Almeida KA, Garcia EM, da Silva Pinto EA, Baisch ALM. Genotoxicity in Brazilian coal miners and its associated factors. Hum Exp Toxicol 2017; 37:891-900. [DOI: 10.1177/0960327117745692] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The present study aims to evaluate the potential genotoxic and associated factors among coal miners, divided by degree of exposure. Blood and buccal smears were collected from 158 workers, who actively participate in different activities in coal mining, and 48 individuals living in the same city but do not have participation in coal mining activities (control group). The workers were divided into three different groups, according to the level of contact with coal extraction. A questionnaire intended to identify factors associated with DNA damage was performed in participants. The results regarding oral mucosa micronucleus test showed a significant difference ( p < 0.001) of the worker groups 1 and 2 in relation to the control group, where the group 1 has a higher degree of exposure to coal than group 2. For the lymphocyte micronucleus test and comet assay, there was no significant difference between the exposed groups and control group. There is an association between the outcome and the fact of living in the municipality of the mining company and the exposure to radiation in the last 12 months. Besides, the multivariate analysis showed an association of the tail moment with radiation exposure in the last 12 months. Thus, the findings of this study reveal genotoxicity in oral mucosa cells of workers exposed to coal and that workers with higher degree of contact with coal have a more pronounced response.
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Affiliation(s)
- FMR da Silva Júnior
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - RA Tavella
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - CLF Fernandes
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - MCF Soares
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - KA de Almeida
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - EM Garcia
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - EA da Silva Pinto
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - ALM Baisch
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande, Rio Grande, Brazil
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18
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Awoyemi OM, Dzantor EK. Toxicity of coal fly ash (CFA) and toxicological response of switchgrass in mycorrhiza-mediated CFA-soil admixtures. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 144:438-444. [PMID: 28666217 DOI: 10.1016/j.ecoenv.2017.06.059] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2017] [Revised: 06/16/2017] [Accepted: 06/20/2017] [Indexed: 06/07/2023]
Abstract
Increasing support for the use of Coal fly ash (CFA) in agriculture has necessitated a better understanding of the effects of the CFA in various cropping schemes. Experiments were conducted to assess mutagenic response of a mutant strain of Salmonella enterica serovar Typhimurium (TA100) to varying concentrations of CFA-water extracts, determine oxidative stress in switchgrass (Panicum virgatum L.) at varying levels of CFA-soil admixtures, and evaluate mycorrhiza-mediated modulation of oxidative stress responses of CFA-grown switchgrass. The TA100 exposed to 0%, 5%, 10%, 15%, 20% and 25% (w/v) CFA-water extracts elicited significant (p < 0.05) mutagenic responses at 20% and 25% extract levels but not below the 15% level. In greenhouse pot experiment, CFA-soil admixtures at 7.5% and 15% (w/w) significantly (p < 0.05) decreased the activities of superoxide dismutase (SOD) by 19.1% and 28.3% respectively, compared to control soil (0% w/w CFA/soil). Under the same conditions, activities of glutathione peroxidase (GPx) decreased by 75.9% and 66.9%. In contrast to the antioxidant enzyme activities, levels of malondialdehyde (MDA) an indicator of lipid peroxidation increased significantly (p < 0.05) by 30.49% and 38.38%. Inoculation of 7.5% and 15% CFA-soil admixtures with arbuscular mycorrhizal fungi (AMF), Rhizophaga clarus enhanced the activities of both SOD and GPx in the switchgrass, while it significantly (p < 0.05) reduced the levels of MDA. The study demonstrated that incorporation of CFA (at concentrations considered to be non-mutagenic against TA100) as soil amendment produced concentration-dependent oxidative stress responses in switchgrass; however, inoculation of the CFA-soil admixtures with AMF significantly modulated the oxidative stress responses.
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Affiliation(s)
- Olushola M Awoyemi
- Department of Agricultural and Environmental Sciences, College of Agriculture, Human and Natural Sciences, Tennessee State University, Nashville, TN 37209, USA.
| | - E Kudjo Dzantor
- Department of Agricultural and Environmental Sciences, College of Agriculture, Human and Natural Sciences, Tennessee State University, Nashville, TN 37209, USA
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19
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Zheng K, Zhao Z, Lin N, Wu Y, Xu Y, Zhang W. Protective Effect of Pinitol Against Inflammatory Mediators of Rheumatoid Arthritis via Inhibition of Protein Tyrosine Phosphatase Non-Receptor Type 22 (PTPN22). Med Sci Monit 2017; 23:1923-1932. [PMID: 28430763 PMCID: PMC5408901 DOI: 10.12659/msm.903357] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Background The aim of the current study was to explore the anti-arthritic effect of pinitol via assessing its effect on various inflammatory mediators and its possible mechanism of action. Material/Method We assessed the anti-arthritic effect of pinitol in a formaldehyde- and CFA-induced arthritic model in Wistar Swiss albino strain rats divided into 6 groups. The rats received different doses of pinitol and indomethacin for 28 days. The arthritic index and body weight were determined at regular intervals, together with hepatic, hematological, and antioxidant parameters. The expression of proinflammatory cytokines (e.g., IL-6, TNF-α, and IL-1β) and inflammatory mediators (e.g., COX-2 and VEGF) were also estimated with histopathological evaluation of the joint tissue of rats. A docking study of pinitol with PTPN22 was also carried out. Results The CFA-induced model rats developed redness and nodules in the tail and front paws, and the arthritic control (AC) group rats showed similar symptoms, which were decreased by pinitol administration. The body weight of AC group rats was decreased, while pinitol-treated rats showed considerably increased body weight. Hematological, hepatic, and antioxidant parameters were altered by pinitol in a dose-dependent manner. Pinitol significantly decreased the elevated concentration of proinflammatory cytokines and inflammatory mediators, with improvement in histopathological condition. The docking study suggested that pinitol efficiently interacted with PTPN22 via Arg59, Tyr60, Leu106, and Lys138 by creating close interatomic hydrogen bonds and hydrophobic contacts. Conclusions Pinitol showed anti-arthritic effects via reduction of proinflammatory cytokines and inflammatory mediators via inhibition of PTPN22.
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Affiliation(s)
- Kewen Zheng
- Department of Orthopeadic Surgery, Hongqi Hospital affiliated to Mudanjiang Medical University, Mudanjiang, Heilongjiang, China (mainland)
| | - Zhixuan Zhao
- Department of Integrated TCM and Western Medicine, Hongqi Hospital affiliated to Mudanjiang Medical University, Mudanjiang, Heilongjiang, China (mainland)
| | - Na Lin
- Department of Stomatology, Hongqi Hospital affiliated to Mudanjiang Medical University, Mudanjiang, Heilongjiang, China (mainland)
| | - Yiyan Wu
- College of Pharmacy, Hongqi Hospital affiliated to Mudanjiang Medical University, Mudanjiang, Heilongjiang, China (mainland)
| | - Ying Xu
- Department of Integrated TCM and Western Medicine, Hongqi Hospital affiliated to Mudanjiang Medical University, Mudanjiang, Heilongjiang, China (mainland)
| | - Wanli Zhang
- Department of Pediatric Surgery, Hongqi Hospital affiliated to Mudanjiang Medical University, Mudanjiang, Heilongjiang, China (mainland)
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20
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Matzenbacher CA, Garcia ALH, Dos Santos MS, Nicolau CC, Premoli S, Corrêa DS, de Souza CT, Niekraszewicz L, Dias JF, Delgado TV, Kalkreuth W, Grivicich I, da Silva J. DNA damage induced by coal dust, fly and bottom ash from coal combustion evaluated using the micronucleus test and comet assay in vitro. JOURNAL OF HAZARDOUS MATERIALS 2017; 324:781-788. [PMID: 27894755 DOI: 10.1016/j.jhazmat.2016.11.062] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 11/19/2016] [Accepted: 11/21/2016] [Indexed: 06/06/2023]
Abstract
Coal mining and combustion generating huge amounts of bottom and fly ash are major causes of environmental pollution and health hazards due to the release of polycyclic aromatic hydrocarbons (PAH) and heavy metals. The Candiota coalfield in Rio Grande do Sul, is one of the largest open-cast coal mines in Brazil. The aim of this study was to evaluate genotoxic and mutagenic effects of coal, bottom ash and fly ash samples from Candiota with the comet assay (alkaline and modified version) and micronucleus test using the lung fibroblast cell line (V79). Qualitative and quantitative analysis of PAH and inorganic elements was carried out by High Performance Liquid Chromatography (HPLC) and by Particle-Induced X-ray Emission (PIXE) techniques respectively. The samples demonstrated genotoxic and mutagenic effects. The comet assay modified using DNA-glicosilase formamidopirimidina (FPG) endonuclease showed damage related to oxidative stress mechanisms. The amount of PAHs was higher in fly ash followed by pulverized coal. The amount of inorganic elements was highest in fly ash, followed by bottom ash. It is concluded that the samples induce DNA damage by mechanisms that include oxidative stress, due to their complex composition, and that protective measures have to be taken regarding occupational and environmental hazards.
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Affiliation(s)
- Cristina Araujo Matzenbacher
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Ana Letícia Hilario Garcia
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Marcela Silva Dos Santos
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Caroline Cardoso Nicolau
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Suziane Premoli
- Research Center Product and Development (CEPPED), Postgraduate Program in Genetics and Applied Toxicology (PPGGTA), Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Dione Silva Corrêa
- Research Center Product and Development (CEPPED), Postgraduate Program in Genetics and Applied Toxicology (PPGGTA), Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Claudia Telles de Souza
- Ion Implantation Laboratory, Institute of Physics, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Liana Niekraszewicz
- Ion Implantation Laboratory, Institute of Physics, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Johnny Ferraz Dias
- Ion Implantation Laboratory, Institute of Physics, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Tânia Valéria Delgado
- Coal Analysis and Rocks Oil Generators Laboratory, Institute of Geosciences, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Wolfgang Kalkreuth
- Coal Analysis and Rocks Oil Generators Laboratory, Institute of Geosciences, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Ivana Grivicich
- Laboratory of Cancer Biology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Juliana da Silva
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil.
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León-Mejía G, Silva LFO, Civeira MS, Oliveira MLS, Machado M, Villela IV, Hartmann A, Premoli S, Corrêa DS, Da Silva J, Henriques JAP. Cytotoxicity and genotoxicity induced by coal and coal fly ash particles samples in V79 cells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:24019-24031. [PMID: 27638803 DOI: 10.1007/s11356-016-7623-z] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 09/07/2016] [Indexed: 06/06/2023]
Abstract
Exposure to coal and coal ashes can cause harmful effects in in vitro and in vivo systems, mainly by the induction of oxidative damage. The aim of this work was to assess cytotoxic and genotoxic effects using the V79 cell line treated with coal and coal fly ash particles derived from a coal power plant located in Santa Catarina, Brazil. Two coal samples (COAL11 and COAL16) and two coal fly ash samples (CFA11 and CFA16) were included in this study. COAL16 was co-firing with a mixture of fuel oil and diesel oil. The comet assay data showed that exposure of V79 cells to coal and coal fly ash particles induced primary DNA lesions. Application of lesion-specific endonucleases (FPG and ENDO III) demonstrated increased DNA effects indicating the presence of high amounts of oxidative DNA lesions. The cytokinesis-block micronucleus cytome assay analysis showed that exposure of V79 cells to high concentrations of coal and coal fly ash particles induced cytotoxic effects (apoptosis and necrosis) and chromosomal instability (nucleoplasmic bridges, nuclear buds, and micronucleus (MN) formation). These results may be associated with compounds contained in the surface of the particles as hazardous elements, ultrafine/nanoparticles, and polycyclic aromatic hydrocarbons (PAHs) which were detected in the samples. Graphical abstract ᅟ.
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Affiliation(s)
- Grethel León-Mejía
- Departamento de Biofísica, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
- Unidad de Investigación, Desarrollo e Innovación en Genética y Biología Molecular, Universidad Simón Bolívar, Barranquilla, Colombia.
| | - Luis F O Silva
- Research group in Environmental Management and Sustainability, Faculty of Environmental Sciences, Universidad de la Costa, Barranquilla, Colombia
- Universidade do Sul de Santa Catarina, Pró-Reitoria de Ensino, de Pesquisa e de Extensão, UNISUL -Universidade do Sul de Santa Catarina Pedra Branca, Palhoça, SC, 88137900, Brazil
| | - Matheus S Civeira
- Universidade do Sul de Santa Catarina, Pró-Reitoria de Ensino, de Pesquisa e de Extensão, UNISUL -Universidade do Sul de Santa Catarina Pedra Branca, Palhoça, SC, 88137900, Brazil
| | - Marcos L S Oliveira
- Universidade do Sul de Santa Catarina, Pró-Reitoria de Ensino, de Pesquisa e de Extensão, UNISUL -Universidade do Sul de Santa Catarina Pedra Branca, Palhoça, SC, 88137900, Brazil
| | - Miriana Machado
- InnVitro Pesquisa e Desenvolvimento, Porto Alegre, RS, Brazil
| | | | | | - Suziane Premoli
- Laboratório de Genética Toxicológica, Universidade Luterana do Brasil (ULBRA), Canoas, RS, Brazil
| | - Dione Silva Corrêa
- Laboratório de Genética Toxicológica, Universidade Luterana do Brasil (ULBRA), Canoas, RS, Brazil
| | - Juliana Da Silva
- Laboratório de Genética Toxicológica, Universidade Luterana do Brasil (ULBRA), Canoas, RS, Brazil
| | - João Antônio Pêgas Henriques
- Departamento de Biofísica, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
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Zhang G, Xi YL, Xue YH, Xiang XL, Wen XL. Coal fly ash effluent affects the distributions of Brachionus calyciflorus sibling species. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 112:60-67. [PMID: 25463854 DOI: 10.1016/j.ecoenv.2014.09.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 09/25/2014] [Accepted: 09/26/2014] [Indexed: 06/04/2023]
Abstract
Fly ash, a coal combustion residue of thermal power plants and a source of multiple pollutants, has been recognized as an environmental hazard all over the world. Although it is known that fly ash effluent affects density, diversity and distribution of rotifers in drainage systems and receiving water bodies, the effect of fly ash effluent on the distributions of highly similar rotifer species remains unknown. In this study, the mtDNA COI genes of 90 individuals in Brachionus calyciflorus complex from Lake Hui (as a fly ash discharge water pond) and other two neighboring lakes (Lake Fengming and Lake Tingtang) were sequenced and analyzed, and the responses in selected life table demographic parameters (life expectancy at hatching, net reproductive rate, intrinsic rate of population increase and proportion of sexual offspring) of different rotifer populations to fly ash effluent were investigated. Overall, 72 mtDNA haplotypes were defined, and were split into two clades by the phylogenetic trees. The divergence of COI gene sequences between the two clades ranged from 11.8% to17.8%, indicating the occurrence of two sibling species (sibling species I and sibling species II). Sibling species I distributed in all the three lakes, showing strong capabilities for dispersal and colonization, which were supported by its higher level of gene flow (2.60-4.04) between the populations from Lake Hui and each of the other two lakes, longer life expectancy at hatching (101.6-148.2 h), and higher net reproductive rate (4.4-16.4 offspring/female) and intrinsic rate of population increase (0.60-0.98/d) when cultured in aerated tap water and fly ash effluent. Sibling species II distributed in both Lake Tingtang and Lake Fengming, showing that its dispersal existed between the two lakes. Considering that the distance between Lake Hui and Lake Fengming is shorter than that between Lake Tingtang and Lake Fengming, sibling species II is able to disperse at least from Lake Fengming to Lake Hui. The restricted distribution of sibling species II in Lake Hui might be attributed to its lower intrinsic rate of population increase (0.34-0.39/d) when cultured in aerated tap water and fiy ash effluent, which might be further lowered by the lower algal food level and quality in Lake Hui.
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Affiliation(s)
- Gen Zhang
- Provincial Key Laboratory for Conservation and Utilization of Important Biological Resource in Anhui, College of Life Sciences, Anhui Normal University, Wuhu 241000, Anhui, PR China; KAUST Global Collaborative Research Program, Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, PR China
| | - Yi-Long Xi
- Provincial Key Laboratory for Conservation and Utilization of Important Biological Resource in Anhui, College of Life Sciences, Anhui Normal University, Wuhu 241000, Anhui, PR China.
| | - Ying-Hao Xue
- Provincial Key Laboratory for Conservation and Utilization of Important Biological Resource in Anhui, College of Life Sciences, Anhui Normal University, Wuhu 241000, Anhui, PR China
| | - Xian-Ling Xiang
- Provincial Key Laboratory for Conservation and Utilization of Important Biological Resource in Anhui, College of Life Sciences, Anhui Normal University, Wuhu 241000, Anhui, PR China
| | - Xin-Li Wen
- Provincial Key Laboratory for Conservation and Utilization of Important Biological Resource in Anhui, College of Life Sciences, Anhui Normal University, Wuhu 241000, Anhui, PR China
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Dwivedi S, Wahab R, Khan F, Mishra YK, Musarrat J, Al-Khedhairy AA. Reactive oxygen species mediated bacterial biofilm inhibition via zinc oxide nanoparticles and their statistical determination. PLoS One 2014; 9:e111289. [PMID: 25402188 PMCID: PMC4234364 DOI: 10.1371/journal.pone.0111289] [Citation(s) in RCA: 199] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 09/29/2014] [Indexed: 02/03/2023] Open
Abstract
The formation of bacterial biofilm is a major challenge in clinical applications. The main aim of this study is to describe the synthesis, characterization and biocidal potential of zinc oxide nanoparticles (NPs) against bacterial strain Pseudomonas aeruginosa. These nanoparticles were synthesized via soft chemical solution process in a very short time and their structural properties have been investigated in detail by using X-ray diffraction and transmission electron microscopy measurements. In this work, the potential of synthesized ZnO-NPs (∼10–15 nm) has been assessed in-vitro inhibition of bacteria and the formation of their biofilms was observed using the tissue culture plate assays. The crystal violet staining on biofilm formation and its optical density revealed the effect on biofilm inhibition. The NPs at a concentration of 100 µg/mL significantly inhibited the growth of bacteria and biofilm formation. The biofilm inhibition by ZnO-NPs was also confirmed via bio-transmission electron microscopy (Bio-TEM). The Bio-TEM analysis of ZnO-NPs treated bacteria confirmed the deformation and damage of cells. The bacterial growth in presence of NPs concluded the bactericidal ability of NPs in a concentration dependent manner. It has been speculated that the antibacterial activity of NPs as a surface coating material, could be a feasible approach for controlling the pathogens. Additionally, the obtained bacterial solution data is also in agreement with the results from statistical analytical methods.
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Affiliation(s)
- Sourabh Dwivedi
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Rizwan Wahab
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
- * E-mail:
| | - Farheen Khan
- Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | - Yogendra K. Mishra
- Functional Nanomaterials, Institute for Materials Science, University of Kiel, Kiel, Germany
| | - Javed Musarrat
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, India
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Møller P, Danielsen PH, Karottki DG, Jantzen K, Roursgaard M, Klingberg H, Jensen DM, Christophersen DV, Hemmingsen JG, Cao Y, Loft S. Oxidative stress and inflammation generated DNA damage by exposure to air pollution particles. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2014; 762:133-66. [DOI: 10.1016/j.mrrev.2014.09.001] [Citation(s) in RCA: 181] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 09/04/2014] [Accepted: 09/04/2014] [Indexed: 01/09/2023]
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25
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Dwivedi S, Siddiqui MA, Farshori NN, Ahamed M, Musarrat J, Al-Khedhairy AA. Synthesis, characterization and toxicological evaluation of iron oxide nanoparticles in human lung alveolar epithelial cells. Colloids Surf B Biointerfaces 2014; 122:209-215. [DOI: 10.1016/j.colsurfb.2014.06.064] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 06/09/2014] [Accepted: 06/30/2014] [Indexed: 01/16/2023]
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26
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Kang DY, Eum CH, Lee S. Characterization of Fly Ash by Field-Flow Fractionation Combined with SPLITT Fractionation and Compositional Analysis by ICP-OES. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.1.69] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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Wahab R, Khan ST, Dwivedi S, Ahamed M, Musarrat J, Al-Khedhairy AA. Effective inhibition of bacterial respiration and growth by CuO microspheres composed of thin nanosheets. Colloids Surf B Biointerfaces 2013; 111:211-7. [DOI: 10.1016/j.colsurfb.2013.06.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 05/29/2013] [Accepted: 06/04/2013] [Indexed: 11/17/2022]
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