Journal of hazardous materials advances最新文献

{"title":"A review on sustainable approach of bioleaching of precious metals from electronic wastes","authors":"Meghna Jaiswal,&nbsp;Sudhakar Srivastava","doi":"10.1016/j.hazadv.2024.100435","DOIUrl":"10.1016/j.hazadv.2024.100435","url":null,"abstract":"<div><p>The development and widespread use of biomining are the result of the rising demand for metals. The depletion of organic resources, the abundance of low-grade metallic ores, and the vast production of metallic waste during mining and beneficiation processes have enhanced the need for biomining. Compared to high-energy-demanding and environmentally unsafe traditional mining techniques, the biomining approach is a revolutionary biotechnological technique. It is a sustainable alternative for extracting valuable metals from low-grade ores and waste materials by using microbes. Microbes have the capacity to catalyze biochemical processes, making it easier to solubilize and extract target metals from complicated mineral matrices. Notably, the redox processes, creation of organic or inorganic acids, and the release of complex agents are all necessary for biomining metals. Metal recovery is achieved from metallic grade ores, mine tailings, municipal solid waste disposal sites, incinerator ash, electronic wastes, tars, etc., all effectively processed via biomining. Biomining is also advantageous as it prevents the emission of harmful gases released from e-waste dump sites, including sulfur dioxides, nitrogen oxides, and carbon dioxide, which are of major concern. These gases may be released into the environment when open-air burning and acid baths are used for the recovery of valuable metals. Nowadays, both base metals (copper, and to a lesser extent, nickel and zinc) and precious metals (mainly gold) are extracted from ores and mineral concentrates in heaps, stirred-tank bioreactors, dumps, and other locations via microbial processing, or biomining. In the ongoing boom of the electronics industry, there is increasing pressure to handle huge amounts of electronic waste. This is also important considering the use of precious metals in the electronics sector and the need to extract them. The present review discusses biomining and bioleaching principles, methods, and also talks about e-waste in general, providing a worldwide overview. The review primarily concentrates on the use of biomining to recover valuable metals from electronic waste.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000366/pdfft?md5=cc3e8dc6321095c637e1b26935d60896&pid=1-s2.0-S2772416624000366-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141140619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization of trace elements of size-resolved particulate matter, development of emission factors and human health impacts associated with stationary diesel engine exhausts","authors":"Vishnu Kumar,&nbsp;Sailesh Narayan Behera","doi":"10.1016/j.hazadv.2024.100432","DOIUrl":"10.1016/j.hazadv.2024.100432","url":null,"abstract":"<div><p>The mass concentration of diesel particulate matter (DPM) and its elemental constituents (twenty-four) emitted from stationary diesel engine exhaust at ten different sizes (56 nm to 18 µm) increased with rise in engine<strong>-</strong>operating load. The maximum value of DPM concentration varied from 10.3 ± 2.4 mg/Nm³ at 0 % load to 20.4 ± 6.5 mg/Nm³ at 100 % load at size-bin of 0.10–0.18 μm. The elements of S, Ca, K, Al, Na, Mg, Fe, and Zn contributed as the major components to DPM mass with more than 90 % to total elements at six engine-operating loads. Ca, K, Al, Na, and Mg also showed higher values of EFs compared to Fe, Zn, As, Cr and Ni. Compared to Cu, Mn, Co, Se, Pb, Ba, Sr, fuel-based emission factor (EF) of Ti, Ga, Cd, Bi, and Te showed lower side of the estimated values. The levels of hazardous particulate elements generated from stationary diesel engine exhausts was a matter of concern from human health point of view as these elements showed better potential in causing significant cancer and non-cancer diseases through long-term exposure. The elements in DPM revealed significant deposition in the pulmonary and alveolar region of the human respiratory tract.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000330/pdfft?md5=6b10472c3e77675eaa52da687a3d006b&pid=1-s2.0-S2772416624000330-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141041725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental investigation of the fallout dynamics of microplastic fragments in wind tunnel: The BURNIA agenda","authors":"Matteo M. Musso ,&nbsp;Frank Harms ,&nbsp;Massimo Martina ,&nbsp;Elke K. Fischer ,&nbsp;Bernd Leitl ,&nbsp;Silvia Trini Castelli","doi":"10.1016/j.hazadv.2024.100433","DOIUrl":"10.1016/j.hazadv.2024.100433","url":null,"abstract":"<div><p>We present a methodology and the first tests to estimate the settling velocity of airborne microplastics based on wind tunnel experiments. A novel approach and original perspective are proposed, discussing in detail challenges and faced problems, both on the theoretical and experimental sides. Several experiments were performed, releasing fragments of different microplastic types, PET, PVC and LPDE. A statistical analysis was applied to the measurements and the values of the settling velocities were estimated to range between 0.1 and 0.2 ms<span><math><msup><mrow></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></math></span>, in agreement with most values found in the related literature. Based on the observed velocities, the applicability of the Stokes’ law, which is often used also for airborne microplastics, is then addressed, highlighting its potential limitations in the context of the microplastic dynamics in the atmosphere. We confirm that using the Stokes’ law may lead to a substantial overestimation of the settling velocity for the airborne microplastics. We also recommend to consider moving to the concept of ‘effective deposition velocity’, to account for the turbulent processes characterising the real atmosphere.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000342/pdfft?md5=8d5f03198eb1c409447145f1b29cd751&pid=1-s2.0-S2772416624000342-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141033043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of reusable graphene oxide based nickel-iron superparamagnetic nanoadsorbent from electronic waste for the removal of doxycycline in aqueous media","authors":"Fahima Mojumder ,&nbsp;Sabina Yasmin ,&nbsp;Md Aftab Ali Shaikh ,&nbsp;Pinaki Chowdhury ,&nbsp;Md Humayun Kabir","doi":"10.1016/j.hazadv.2024.100429","DOIUrl":"10.1016/j.hazadv.2024.100429","url":null,"abstract":"<div><p>Graphene oxide-based nickel-iron superparamagnetic nanoadsorbent (GO/Ni-Fe) was synthesized from electronic waste to effectively remove doxycycline (DXC) in aqueous media. The GO/Ni-Fe nanoadsorbent has been characterized using a number of instrumental techniques, including X-ray diffractometer, Zeta potential, Fourier transform infrared spectroscopy, elemental analyzer, vibrating sample magnetometer, transmission electron microscopy, energy dispersive x-ray, and X-ray photoelectron spectroscopy. These techniques showed that nickel-iron (Ni-Fe) nanoparticles with an average size of 4.26 nm were successfully fabricated on GO surfaces. The batch experiments were conducted under different conditions, including contact time, adsorption dosage, pH, concentration, and temperature, to determine the optimal conditions of the adsorption process. The maximum adsorption (90% removal) was established within 20 min, while the adsorbent dose was only 0.1 g/L at pH 5. The adsorption process was best fitted with the pseudo-second-order model, which suggests the interaction of doxycycline with the GO/Ni-Fe nanoadsorbent is mainly controlled by the chemisorption process. This may be due to hydrogen bonding as well as electrostatic interaction and π-π interaction between adsorbates and adsorbents. The isotherm data of the adsorption process was best fitted with Langmuir isotherm model with a maximum adsorption capacity of 13.02 mg <em>g</em> ⁻ ¹ at 25 °C, indicating that the adsorption is a monolayer adsorption to heterogeneous surfaces with electrostatic interaction. The superparamagnetic properties of GO/Ni-Fe nanoadsorbent can be easily separated by external magnetic field and regenerated with methanol washing. The findings unambiguously demonstrated that magnetically separable GO/Ni-Fe nanoadsorbent could be a good choice to remove DXC from wastewater sources.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000305/pdfft?md5=be3d88fdf257151653ee2e19b6d35209&pid=1-s2.0-S2772416624000305-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140757119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of gamma irradiated acrylic acid-grafted-sawdust (SD-g-AAc) for trivalent chromium adsorption from aqueous solution","authors":"Sobur Ahmed ,&nbsp;Abrar Shahriar ,&nbsp;Nazia Rahman ,&nbsp;Md. Zahangir Alam ,&nbsp;Mohammad Nurnabi","doi":"10.1016/j.hazadv.2024.100427","DOIUrl":"https://doi.org/10.1016/j.hazadv.2024.100427","url":null,"abstract":"<div><p>Water pollution caused by chromium released from tannery is a serious concern to the environment and public health. Chromium removal from tannery effluent is a crying need before discharging to the surface water. In this study, acrylic acid-grafted sawdust was prepared by Tectona grandis sawdust grafting with acrylic acid employing gamma irradiation in the presence of air and Mohr's salt. It was treated with NaOH and the characterization of surface morphology and functional groups of modified sawdust was studied by SEM and FTIR.. The effects of solution pH, adsorbent dosage, adsorption time, and initial Cr(III) ion concentration were investigated by batch sorption studies. The process was found to be pH, temperature and concentration dependent. Langmuir and Freundlich isotherms were applied to realize the adsorption process in depth, and it was found that the Langmuir isotherm model fitted well with experimental data (R² value of 0.983). The maximum monolayer adsorption capacity of acrylic acid-grafted sawdust for Cr(III) from aquous solution was found to be 21.55 mg g^-1 at 25 °C. Pseudo-first-order and pseudo-second-order kinetic models were employed to analyze the kinetics of the process, and it was found that the experimental process followed the pseudo-second-order kinetic model, i.e. chemisorption. This study revealed that acrylic acid-grafted sawdust has a decent potential for the removal of Cr(III) from tannery effluents.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000287/pdfft?md5=e77b9e63c7776545483dbb603e1ec4d6&pid=1-s2.0-S2772416624000287-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140622318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of microplastic intake via poultry products: Environmental toxicity and human health","authors":"Prabhakar Sharma ,&nbsp;Vijay Kumar Vidyarthi","doi":"10.1016/j.hazadv.2024.100426","DOIUrl":"https://doi.org/10.1016/j.hazadv.2024.100426","url":null,"abstract":"<div><p>In recent years, the escalating concerns surrounding the pervasive presence of microplastics in the environment had prompted a pressing need to evaluate their potential impacts on ecosystems and human health. This study investigates the pathways and implications of microplastic intake through poultry product consumption by focusing on environmental toxicity and human health risks. Through an integrated approach encompassing available experimental data and literature synthesis, the intricate mechanisms of microplastic transfer from poultry feed to animal tissues are elucidated by highlighting the potential environmental implications of such contamination. An in-depth toxicological assessment evaluated the health risks associated with microplastic ingestion with poultry food consumption by emphasizing the acute and chronic effects on human well-being. This study emphasizes the urgency of implementing informed policy decisions and sustainable practices to mitigate the environmental and human health risks posed by microplastic contamination in the poultry food chain. The insights provided by this study serve as a foundational basis for generating awareness and implementing effective measures aimed at safeguarding both environmental integrity and human well-being from the escalating threats of microplastic pollution.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000275/pdfft?md5=ac3511a6af2293f296f08621745ca191&pid=1-s2.0-S2772416624000275-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140558941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancing influenza prevention through a one health approach: A comprehensive analysis","authors":"Riya Mukherjee ,&nbsp;Gunjan K ,&nbsp;Himanshu K ,&nbsp;Jasmina Vidic ,&nbsp;Ramendra Pati Pandey ,&nbsp;Chung-Ming Chang","doi":"10.1016/j.hazadv.2024.100419","DOIUrl":"https://doi.org/10.1016/j.hazadv.2024.100419","url":null,"abstract":"<div><h3>Background</h3><p>Influenza represents a global One Health concern, and the utilization of nanoparticle-based vaccines or drugs emerges as a promising solution for its prevention and treatment. Nanoparticles, with their precision in drug distribution, heightened efficacy, and minimized adverse effects, have garnered attention as viable candidates in the fight against influenza. This meta-analysis assesses the effectiveness, safety, and potential applications of nanoparticles, particularly those incorporating natural compounds like curcumin, in influenza prevention and treatment.</p></div><div><h3>Methods</h3><p>A systematic literature search was conducted to gather and examine studies focusing on nanoparticle-based strategies for influenza prevention and treatment, with a specific emphasis on natural compounds such as curcumin. The results obtained were meticulously evaluated.</p></div><div><h3>Findings</h3><p>The results indicate that nanoparticles significantly enhance the effectiveness of influenza prevention. In animal models, nanoparticle interventions exhibit heightened antiviral activity, leading to a substantial reduction in viral load and improved survival rates. The precision of drug administration enabled by nanoparticles facilitates higher drug concentrations at the infection site, maximizing therapeutic benefits. Notably, nanoparticle-based therapies exhibit superior safety profiles compared to traditional antiviral medications, with minimal cytotoxicity and fewer side effects. The combination of phytochemicals with nanoparticles offers a promising avenue for influenza treatment, providing durable therapeutic alternatives with inherent natural qualities that enhance antiviral activity. The synergistic effect of phytochemicals and nanoparticles opens new avenues for the development of antiviral agents.</p></div><div><h3>Conclusion</h3><p>In conclusion, nanoparticles demonstrate both efficacy and safety in the treatment of influenza, acting as potent therapeutic agents due to their targeted drug delivery and enhanced antiviral activities. The inclusion of phytochemicals further amplifies their potential. Future research endeavours should focus on refining nanoparticle formulations, elucidating their mechanisms of action, and exploring innovative combinatorial strategies. The revolutionary impact of nanoparticles in influenza treatment holds the promise of advancing antiviral medicines and ultimately improving patient outcomes.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000202/pdfft?md5=707f06072258e9c2f15b155f9d43cbe9&pid=1-s2.0-S2772416624000202-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140308984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Appraisal of polycyclic aromatic hydrocarbons (PAHs) in indoor dust of Eastern Nigeria and its implications in the COVID-19 years","authors":"Chideraa Courage Offor,&nbsp;John Kanayochukwu Nduka","doi":"10.1016/j.hazadv.2024.100424","DOIUrl":"https://doi.org/10.1016/j.hazadv.2024.100424","url":null,"abstract":"<div><p>The risk assessment of PAHs in settled indoor dusts from different localities of Awka, Ekwulobia, and Rumuodomaya–Ogale, Eastern Nigeria, were investigated. Settled dust samples (<em>n</em> = 144) were collected from the windows and floor using brush and analyzed for PAHs with GC- FID. Dust from the windows showed higher total PAHs concentrations than the floor in the order; Rumuodomaya–Ogale &gt; Ekwulobia &gt; Awka. The 3- and 4-ring PAHs were dominant in the window and floor dust of Awka in all the months, while the 3-ring PAHs were the dominant compound in Ekwulobia<strong>.</strong> The concentrations of total PAH in the window and floor dusts of Ekwulobia, showed a significant difference across the months (<em>p</em> &lt; 0.05). In Rumuodomaya–Ogale, the 3, 4, and 5-ring PAHs supersede in the window and floor dust. This showed that dust is a major sink for 3–5-ring PAHs. The compounds; BaA, DahA, Ant, BaP, and DBA were the major contributors to benzo(a)pyrene as toxicity equivalence (<span><math><mrow><mi>B</mi><mi>a</mi><msub><mi>P</mi><mrow><mi>T</mi><mi>E</mi><mi>Q</mi></mrow></msub></mrow></math></span>) values of the window and floor dust. The total incremental life cancer risk was &lt; 1.0 × 10⁻⁰⁴ in all the study area; hence, the increased indoor activities during COVID-19 lockdown had no significant cancer effect on human health of the populace.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000251/pdfft?md5=a79ee4c7c3ba8912ec635cae4f42855e&pid=1-s2.0-S2772416624000251-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140327806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High pollution loads engineer oxygen dynamics, ecological niches, and pathogenicity shifts in freshwater environments","authors":"Nuraddeen Bello Ahmad ,&nbsp;Mohammed Sani Jaafaru ,&nbsp;Zaharaddeen Isa ,&nbsp;Yusuf Abdulhamid ,&nbsp;Rahanatu Adamu Kakudi ,&nbsp;Adamu Yunusa Ugya ,&nbsp;Kamel Meguellati","doi":"10.1016/j.hazadv.2024.100425","DOIUrl":"https://doi.org/10.1016/j.hazadv.2024.100425","url":null,"abstract":"<div><p>The current study comprehensively reviews the ecological niche and pathogenicity shift in the freshwater microbial community in response to the stress induced by a high pollution load. The study provides a unique understanding of how a change in oxygen level tends to affect the survival of aquatic biota by delving into how an increase in pollutant load affects freshwater stability. The review indicated that high pollution loads alter the balance of freshwater resources such as organic matter, dissolved gases, light penetration, and essential nutrients. This causes oxygen dynamics and a species-dependent change in the community and niche of microorganisms in freshwater environments. This oxygen dynamics also causes the alteration of the genome of freshwater microorganisms, leading to the development of antibiotic resistance genes and thereby increasing the pathogenicity of freshwater microorganisms. The oxygen dynamic created lowers the natural defence strategies of the freshwater environment, thereby increasing the efficacy of the pathogens to infest the respective host. A detailed study of the mechanisms involved in freshwater exotoxins production and interaction with microorganisms will give an important insight into the niche shift in response to the effect of the exotoxin. The effect of the change in the pathogenicity of freshwater microorganisms is of importance to both environmental and medical interests. This is because the change in pathogenicity is not only detrimental to aquatic organisms but also resists improperly treated drinking water. Such water could retrogress wellness and quality of life when used continuously. An extensive study on how specific pollutants cause a shift in the niche and pathogenicity of freshwater microbiota will provide a detailed understanding of the impact of pollution on the stability of freshwater environment.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000263/pdfft?md5=c99fb81a5f4dd3c0cc379a18088fda71&pid=1-s2.0-S2772416624000263-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140344941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Potentially toxic elements distribution, petrography, and synchrotron characterization in polluted soils around industrial complex, Central Jordan","authors":"Tayel El-Hasan ,&nbsp;Allayth Aldrabee ,&nbsp;Messaoud Harfouche","doi":"10.1016/j.hazadv.2024.100423","DOIUrl":"https://doi.org/10.1016/j.hazadv.2024.100423","url":null,"abstract":"<div><p>Industry is the main source of soil pollution in Jordan, where higher concentrations of potentially toxic elements were found in the soil around industrial estates. This study is dealing with an industrial pollution hot spot that is a steel factory in central Jordan that emits various ashes and gases. This area is moderately inhibited, and its soil is increasingly utilized in agricultural activities. High Fe, Cr, Mn, Pb, and V contents were recorded in the soil adjacent to the factory mainly concentrated on the prevailing wind direction. The studied sites bear heavy metalloids concentrations exceeding the permissible limit of WHO/EPA. These concentrations were found in topsoils and they decreased downward because of low mobility due of high soil alkalinity and lower pedogenesis. Moreover, the synchrotron-based XAFS technique was used to understand changes in oxidation states of Fe atom as well as in its structural parameters with depth. EXAFS analysis reveals association of Fe atoms mainly with oxygen (O), which indicates the anthropogenic Fe source. XANES data shows that Fe occurs in divalent (Fe²⁺) and trivalent (Fe³⁺) forms, which indicates that magnetite is dominating the topsoil. This Fe-phase is usually formed during oxygenated high thermal manufacturing processes. The topsoils SEM-EDS investigations confirmed the dominance of magnetite spheres, which coincides with the positive correlation between Fe and other elements as indicated from the statistical interpretation of the data.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S277241662400024X/pdfft?md5=68d2979107d6eee549c3c891272ec3e7&pid=1-s2.0-S277241662400024X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140342177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}