Journal of hazardous materials letters最新文献_第10页

In vitro and in vivo roles of cyanobacterial carbonic anhydrase as a biomarker for monitoring antibiotics 体外和体内蓝藻碳酸酐酶作为监测抗生素的生物标志物的作用

Journal of hazardous materials letters Pub Date : 2022-11-01 DOI: 10.1016/j.hazl.2022.100055

Huiting Chen , Xiaoxi Wu , Ling Li , Mingyu Wang , Chao Song , Shuguang Wang , Zhen Yan

{"title":"In vitro and in vivo roles of cyanobacterial carbonic anhydrase as a biomarker for monitoring antibiotics","authors":"Huiting Chen , Xiaoxi Wu , Ling Li , Mingyu Wang , Chao Song , Shuguang Wang , Zhen Yan","doi":"10.1016/j.hazl.2022.100055","DOIUrl":"https://doi.org/10.1016/j.hazl.2022.100055","url":null,"abstract":"<div>Environmental biomarkers represent an emerging tool in environmental monitoring by measuring variations in cellular or molecular exposure to chemical pollutants. Carbonic anhydrase, a widespread enzyme in organisms, has the potential to be utilized as a biomarker because of its sensitive activity to chemical pollutants. Here, we report the first extracellular carbonic anhydrase (EcaA) from cyanobacteria as a biomarker for monitoring antibiotics. A recombinant microbial factory that is capable of heterologously overexpressing EcaA was constructed, and the purified enzyme exhibited superior performance in monitoring various antibiotics in vitro. The IC50 values of the four selected antibiotics, ciprofloxacin, spectinomycin, tetracycline and ampicillin, were 1.45 ± 0.61, 10.40 ± 0.34, 18.92 ± 2.42 and 59.73 ± 2.56 μM, respectively. The feasibility of EcaA as a biomarker for monitoring antibiotics in vivo was also confirmed. Growth of wild-type cyanobacteria was more inhibited by ciprofloxacin and tetracycline than an EcaA-null mutant, demonstrating that EcaA responded physiologically to the two antibiotics, thus causing growth defects. Our results enable advanced development and optimization of carbonic anhydrase as a biomarker to monitor antibiotics in vitro and in vivo.</div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"3 ","pages":"Article 100055"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911022000089/pdfft?md5=8c830109c0128a3d0c7faee2e982bd8e&pid=1-s2.0-S2666911022000089-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137080959","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}

引用次数: 0

Assessing the impact of flooding on bacterial community structure and occurrence of potentially pathogenic bacteria in Texas Rivers after Hurricane Harvey 评估飓风哈维后洪水对德克萨斯州河流细菌群落结构和潜在致病菌发生的影响

Journal of hazardous materials letters Pub Date : 2022-11-01 DOI: 10.1016/j.hazl.2022.100058

Sina V. Moghadam , Kiran Kumar Vadde , Duc C. Phan , Arash Jafarzadeh, Vikram Kapoor

{"title":"Assessing the impact of flooding on bacterial community structure and occurrence of potentially pathogenic bacteria in Texas Rivers after Hurricane Harvey","authors":"Sina V. Moghadam , Kiran Kumar Vadde , Duc C. Phan , Arash Jafarzadeh, Vikram Kapoor","doi":"10.1016/j.hazl.2022.100058","DOIUrl":"https://doi.org/10.1016/j.hazl.2022.100058","url":null,"abstract":"<div>Hurricanes and extreme stormwater events can transport fecal contaminants and a wide range of bacterial pathogens to receiving rivers and streams, threatening public health. This study investigated the impact of flooding on bacterial diversity and the occurrence of fecal and potential bacterial pathogens in Texas Rivers over a short (3 weeks and 3 months) and long time (12 months) after Hurricane Harvey. Water samples were collected from 8 sampling sites of Guadalupe and San Antonio Rivers during three sampling events and bacterial community structure was evaluated using next-generation sequencing (NGS). Results showed that Proteobacteria, Actinobacteria, Bacteroidetes, and Cyanobacteria were the predominant phyla in the water samples. Hierarchal cluster analysis and principal coordinate analysis indicated that bacterial community structure was significantly different in the water samples collected from flooded and non-flooded sites. At genus level, eight fecal-associated and twelve potentially pathogenic bacterial genera were detected in water samples, mainly from flooded sites collected during short-term sampling events. Overall, results suggest that NGS-based microbial water quality monitoring of environmental samples after flooding events could provide critical information about the wide range of pathogens, which can be further assessed by specific methods to identify the risk of exposure.</div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"3 ","pages":"Article 100058"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911022000119/pdfft?md5=d88646c415ff7e1d97dd72d5557b3db4&pid=1-s2.0-S2666911022000119-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90001290","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}

引用次数: 0

Adsorptive degradation of dimethyl methylphosphonate over Zr-based metal–organic framework built from 3,3′,5,5′-azobenzenetetracarboxylic acid 3,3′，5,5′-偶氮苯四羧酸锆基金属-有机骨架吸附降解甲基膦酸二甲酯

Journal of hazardous materials letters Pub Date : 2022-11-01 DOI: 10.1016/j.hazl.2022.100066

Sachin K. Chitale, Young Sang Ko, Jung Won Choi, Ji Woong Yoon, Donghui Jo, Su-Kyung Lee, Kyung Ho Cho, U-Hwang Lee

{"title":"Adsorptive degradation of dimethyl methylphosphonate over Zr-based metal–organic framework built from 3,3′,5,5′-azobenzenetetracarboxylic acid","authors":"Sachin K. Chitale, Young Sang Ko, Jung Won Choi, Ji Woong Yoon, Donghui Jo, Su-Kyung Lee, Kyung Ho Cho, U-Hwang Lee","doi":"10.1016/j.hazl.2022.100066","DOIUrl":"10.1016/j.hazl.2022.100066","url":null,"abstract":"<div>Chemical warfare agents (CWAs) pose a significant threat to humans because of their high toxicity. Zirconium-based metal–organic frameworks (Zr-MOFs) are promising candidates for the purification and detoxification of CWAs. In this study, we prepared a Zr6O4(OH)8(H2O)4(abtc)2 denoted to Zr-abtc (abtc = 3,3′,5,5′-azobenzene-tetracarboxylate) under eco-friendly hydrothermal reflux conditions and investigated its detoxification performance. Dimethyl methylphosphonate (DMMP) was used as a simulant of a nerve agent to evaluate the adsorption performance of Zr–abtc. The Zr–abtc MOF was constructed from an 8-connected Zr6 cluster [Zr6(µ3-O)4(µ3-OH)4] with abtc as a linker, resulting in the generation of abundant surface hydroxyl groups, high porosity, and remarkable structural robustness under high moisture and high temperature conditions. The results of the breakthrough (BT) test of DMMP under dry and humid conditions reveal that Zr–abtc displays high DMMP adsorption performance with the adsorption capacity of 1.74 and 1.60 mmol/g under dry and humid condition, respectively. The high performance of Zr–abtc can be attributed to not only the strong interaction between the surface hydroxyl group of Zr–abtc MOF and DMMP but also the catalytic activity of the surface hydroxyl group to form the decomposed product of DMMP, as demonstrated using Fourier transform infrared spectroscopy (FTIR).</div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"3 ","pages":"Article 100066"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911022000193/pdfft?md5=1d25cc90feb75b186b4b6ac47ec39f3c&pid=1-s2.0-S2666911022000193-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49507099","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}

引用次数: 3

Release of perfluoroalkyl substances from AFFF-impacted concrete in a firefighting training ground (FTG) under repeated rainfall simulations 反复降雨模拟下消防训练场(FTG)中受afff影响的混凝土中全氟烷基物质的释放

Journal of hazardous materials letters Pub Date : 2022-11-01 DOI: 10.1016/j.hazl.2022.100050

Phong K. Thai , Jeffrey T. McDonough , Trent A. Key , Jack Thompson , Pritesh Prasad , Scott Porman , Jochen F. Mueller

{"title":"Release of perfluoroalkyl substances from AFFF-impacted concrete in a firefighting training ground (FTG) under repeated rainfall simulations","authors":"Phong K. Thai , Jeffrey T. McDonough , Trent A. Key , Jack Thompson , Pritesh Prasad , Scott Porman , Jochen F. Mueller","doi":"10.1016/j.hazl.2022.100050","DOIUrl":"10.1016/j.hazl.2022.100050","url":null,"abstract":"<div>Historical use of per- and polyfluoroalkyl substances (PFAS) at firefighting training grounds (FTGs) has prompted questions regarding possible PFAS retention within concrete and subsequent releases to the environment. This investigation seeks to better understand the release of five PFAS from concrete cores collected from a legacy FTG. The vertical profile of cores were assessed, then surface ponding and rainfall simulations were conducted on the cores. Perfluorooctane sulfonate (PFOS) had the highest concentrations in both the core (up to 10,000 μg kg−1) and in ponded water on their surface (up to 100 μg L−1), followed by 6:2 fluorotelomer sulfonate (6:2 FTS) and perfluorohexane sulfonate (PFHxS). The maximum concentrations of PFAS in runoff water of five rainfall simulations were similar, suggesting recurring release of PFAS from AFFF impacted concrete, which could be sustained by upward transport of PFAS in the concrete subsurface layers through a potential “wicking” effect. The estimated mass of PFAS released during a simulated rainfall of 60 mm was approximately 1% of the total PFAS mass estimated within the top 1 cm of the concrete core. The results of the study suggest that concrete at FTGs may present an ongoing secondary source of PFAS in runoff water events.</div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"3 ","pages":"Article 100050"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266691102200003X/pdfft?md5=ee242ecd07384b5aeab3e79372d11073&pid=1-s2.0-S266691102200003X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46212828","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}

引用次数: 5

Structural, functional, and molecular docking analyses of microbial cutinase enzymes against polyurethane monomers 微生物角质酶对聚氨酯单体的结构、功能和分子对接分析

Journal of hazardous materials letters Pub Date : 2022-11-01 DOI: 10.1016/j.hazl.2022.100063

Nicolás Flores-Castañón , Shrabana Sarkar , Aparna Banerjee

{"title":"Structural, functional, and molecular docking analyses of microbial cutinase enzymes against polyurethane monomers","authors":"Nicolás Flores-Castañón , Shrabana Sarkar , Aparna Banerjee","doi":"10.1016/j.hazl.2022.100063","DOIUrl":"10.1016/j.hazl.2022.100063","url":null,"abstract":"<div>Plastic waste is the biggest global problem in present times due to its constant bioaccumulation in the environment. During the last year, 367 Mt of plastics were produced in the world, of which 28.6 Mt correspond to polyurethane waste. Polyurethanes can be found in products such as adhesives, preservatives, and foams, and are often difficult to recycle. The fragmentation of plastic waste in the environment generates microplastics causing a long-term effect on our ecosystem. In search of its solution via bioremediation using enzymes, in our present study cutinase enzyme has been chosen, as it appears to be a novel candidate due to the wide variety of substrates it hydrolyzes and its presence in different microorganisms. According to physiochemical characteristics, it was found that microbial cutinase enzymes are majorly made up of aliphatic amino acids. A higher aliphatic index (more than 80) indicates the great thermostability of the enzyme. Moreover, the enzyme is found to be hydrophilic and structurally stable. The negative GRAVY value of the enzyme confirmed its stable interaction with water. It was also observed that all chosen protein models had an average of 91.10 % amino acids in the favorable regions of the Ramachandran plot. The studied microbial cutinase enzymes from both fungi Humicola insolens and actinobacterium Thermobifida fusca successfully coupled with the polyurethane resin monomers. The main interactions were found in the catalytic triad with bonds close to the urethane bonds of the ligand, in addition to having an average binding energy of − 6 kJ/mol. The interaction between the cutinases with the PUR resin as a ligand was found to be evident from our study with stable binding energies, which makes microbial cutinases potential enzymes for polyurethane waste bioremediation processes.</div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"3 ","pages":"Article 100063"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911022000168/pdfft?md5=69c6a697902e17f90c733fa912cceb51&pid=1-s2.0-S2666911022000168-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54420912","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}

引用次数: 7

Toxic effects of Rhodamine B on antioxidant system and photosynthesis of Hydrilla verticillata 罗丹明B对水螅抗氧化系统及光合作用的毒性影响

Journal of hazardous materials letters Pub Date : 2022-11-01 DOI: 10.1016/j.hazl.2022.100069

Jyotshana Sharma, Shubhangani Sharma, Upma Bhatt, Vineet Soni

{"title":"Toxic effects of Rhodamine B on antioxidant system and photosynthesis of Hydrilla verticillata","authors":"Jyotshana Sharma, Shubhangani Sharma, Upma Bhatt, Vineet Soni","doi":"10.1016/j.hazl.2022.100069","DOIUrl":"10.1016/j.hazl.2022.100069","url":null,"abstract":"<div>Rhodamine B is a synthetic dye released in huge quantities as hazardous colored effluents into aquatic ecosystems. It negatively affects the metabolic and physiological processes in aquatic plants. The goal of current study was to assess the impact of various Rhodamine B concentrations (5, 10, 15, 20, and 25 mg/L) on antioxidant and photosynthetic performance of Hydrilla verticillata exposed for 24, 48, and 72 h. Results of present study clearly demonstrate that Rhodamine B inhibits the activity of the superoxide dismutase (SOD), catalase (CAT), and guaiacol peroxidase (GPOD) in H. verticillata. Activities of SOD, CAT, and GPOD were constantly raised at lower concentrations and then decreased with increasing concentration and exposure duration of Rhodamine B. In vivo chlorophyll fluorescence experiments were used to examine its inhibitory effects on H. verticillata photosystem II (PSII). The OJIP fluorescence induction kinetics were altered by increasing the Rhodamine B concentration and treatment time as a result increasing the parameters Fo/Fm and φDo while decreasing Fm, φPo, Ψo, φEo, RC/CSm, ABS/CSm, TR/CSm, ET/CSm and, PIabs. When exposed to Rhodamine B, electron transport is slowed down on both the acceptor and donor sides and overall decreases the photosynthetic performance of H. verticillata.</div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"3 ","pages":"Article 100069"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911022000223/pdfft?md5=e432bdd5bd88eec65fcc1b5c27259713&pid=1-s2.0-S2666911022000223-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45903996","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}

引用次数: 12

Ingested microplastics: Do humans eat one credit card per week? 摄入的微塑料:人类每周吃掉一张信用卡吗?

Journal of hazardous materials letters Pub Date : 2022-11-01 DOI: 10.1016/j.hazl.2022.100071

Martin Pletz

{"title":"Ingested microplastics: Do humans eat one credit card per week?","authors":"Martin Pletz","doi":"10.1016/j.hazl.2022.100071","DOIUrl":"10.1016/j.hazl.2022.100071","url":null,"abstract":"<div>Ingested Microplastic (MP) particles can harm the human body. Estimations of the total mass of ingested MP particles correspond to 50 plastic bags per year (Bai et al., 2022), one credit card per week (Gruber et al., 2022), or a median value of 4.1 μg/week for adults (Mohamed Nor et al., 2021). The first two estimations are based on an analysis (Senathirajah et al., 2021) that predicts a total ingested mass of MP particles mi,MP of 0.1–5 g/week. This work revisits and evaluates this calculation and compares its results and methods to Mohamed Nor et al. (2021). Senathirajah combines data of averaged MP particle masses <math><msub><mrow><mover><mrow><mi>m</mi></mrow><mrow><mo>¯</mo></mrow></mover></mrow><mrow><mi>MP</mi></mrow></msub></math> from papers that reported MP particle sizes and MP particle counts nMP in shellfish, salt, beer, and water based on other papers that detected MP particles. Combined with the estimated weekly consumption of those consumables, they compute mi,MP. This work raises some serious issues of Senathirajah in the way they combine data and they obtained particle sizes. It concludes that Senathirajah overestimates mi,MP by several orders of magnitude and that mi,MP can be considered as a rather irrelevant factor for the toxic effects of MP particles on the human body.</div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"3 ","pages":"Article 100071"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911022000247/pdfft?md5=02aeea1849e1b8ce78b878fe49cb035a&pid=1-s2.0-S2666911022000247-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48168939","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}

引用次数: 7

Bioaccumulation of lead (Pb) and its effects in plants: A review 铅在植物体内的生物积累及其影响研究进展

Journal of hazardous materials letters Pub Date : 2022-11-01 DOI: 10.1016/j.hazl.2022.100064

Samuel Collin , Amritha Baskar , Deepthi Mariam Geevarghese , Mohamed Niyaz Vellala Syed Ali , Praveena Bahubali , Rajan Choudhary , Vladislav Lvov , Gabriel Ibrahin Tovar , Fedor Senatov , Sivasankar Koppala , Sasikumar Swamiappan

{"title":"Bioaccumulation of lead (Pb) and its effects in plants: A review","authors":"Samuel Collin , Amritha Baskar , Deepthi Mariam Geevarghese , Mohamed Niyaz Vellala Syed Ali , Praveena Bahubali , Rajan Choudhary , Vladislav Lvov , Gabriel Ibrahin Tovar , Fedor Senatov , Sivasankar Koppala , Sasikumar Swamiappan","doi":"10.1016/j.hazl.2022.100064","DOIUrl":"10.1016/j.hazl.2022.100064","url":null,"abstract":"<div>Heavy metals (HM) toxicity is becoming a major threat to living organisms in recent years due to the increase in population and anthropogenic activities. Lead (Pb) shares about 10% of total pollution produced by heavy metals. The uptake of lead by the primary producers (plants) is found to affect their metabolic functions, growth, and photosynthetic activity. The accumulation of lead in excess can cause up to a 42% reduction in the growth of the roots. The current review addresses the global status of lead contamination in soil, potential lead sources, and the mechanism of lead uptake by the plants. This article also provides information about the lead concentration in plants in polluted and non-polluted areas. Humans are directly or indirectly dependent on plants to meet their daily requirements. So, it becomes necessary to review the problems associated with lead pollution in plants and its mode of action affecting the plant system. Factors like bioaccumulation, bioavailability, bioconcentration, transfer factor, and the role of Casparian strips as a natural physical barrier are discussed. Further, the updated literature survey about the various bioremediation strategies utilized for its elimination is also presented. The current study suggests that more attention needs to be focused on evaluating the effectiveness of bioremediation methods.</div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"3 ","pages":"Article 100064"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266691102200017X/pdfft?md5=a1d93fc87b451d9eb86c5231562d3b5a&pid=1-s2.0-S266691102200017X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44839286","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}

引用次数: 41

Natural nanoparticles of the critical element tellurium 关键元素碲的天然纳米粒子

Journal of hazardous materials letters Pub Date : 2022-11-01 DOI: 10.1016/j.hazl.2022.100053

Owen P. Missen , Ella R. Lausberg , Joël Brugger , Barbara Etschmann , Stuart J. Mills , Koichi Momma , Rahul Ram , Mihoko Maruyama , Xi-Ya Fang , Erik Melchiorre , Christopher G. Ryan , Edgar E. Villalobos-Portillo , Hiram Castillo-Michel , Kiyofumi Nitta , Oki Sekizawa , Jeremiah Shuster , Santonu K. Sanyal , Andrew Frierdich , Steve Hunt , Yuka Tsuri , Maria A.D. Rea

{"title":"Natural nanoparticles of the critical element tellurium","authors":"Owen P. Missen , Ella R. Lausberg , Joël Brugger , Barbara Etschmann , Stuart J. Mills , Koichi Momma , Rahul Ram , Mihoko Maruyama , Xi-Ya Fang , Erik Melchiorre , Christopher G. Ryan , Edgar E. Villalobos-Portillo , Hiram Castillo-Michel , Kiyofumi Nitta , Oki Sekizawa , Jeremiah Shuster , Santonu K. Sanyal , Andrew Frierdich , Steve Hunt , Yuka Tsuri , Maria A.D. Rea","doi":"10.1016/j.hazl.2022.100053","DOIUrl":"10.1016/j.hazl.2022.100053","url":null,"abstract":"<div>Tellurium (Te) is a Critical Element that is toxic to microorganisms and humans alike, most notably in its soluble oxyanionic forms. To date, the biogeochemical behaviour of Te in Earth’s surface environment is largely unknown. Here, we report the discovery of elemental Te nanoparticles (Te NPs) in regolith samples using Single-Particle Inductively Coupled Plasma Mass Spectroscopy. Tellurium NPs were detected in both proximal and distal locations (bulk concentrations >4 ppm) relative to weathering Te ores. Synchrotron X-ray Fluorescence Mapping and X-ray Absorption Spectroscopy showed that bulk Te in the regolith is generally associated with Fe (oxyhydr)oxides and clay minerals, and mostly found in the oxidation states +IV and +VI. Although Te NPs account for less than 2 mol‰ of Te in our samples, their detection provides evidence for the active biogeochemical cycling of Te in surface environments. Te NPs are reactive and are likely to have formed in situ in distal samples, most likely via microbially-mediated reduction. Hence, the presence of Te NPs indicates the potential for release of toxic soluble forms of Te even in environments where most Te is “fixed” in forms such as Fe (oxyhydr)oxides that have low solubility and poor bioavailability.</div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"3 ","pages":"Article 100053"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911022000065/pdfft?md5=1f4507d892913376289e3bdf27601fdb&pid=1-s2.0-S2666911022000065-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47413663","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}

引用次数: 2

Corrigendum to “The distribution of persistent, mobile and toxic (PMT) pharmaceuticals and personal care products monitored across Chinese water resources” “中国水资源监测的持久性、流动性和毒性（PMT）药品和个人护理产品的分布”勘误表

Journal of hazardous materials letters Pub Date : 2022-11-01 DOI: 10.1016/j.hazl.2022.100049

Chen Huang , Biao Jin

引用次数: 0