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Dose A, Kennington WJ, Evans JP. Heat stress mediates toxicity of rutile titanium dioxide nanoparticles on fertilisation capacity in the broadcast spawning mussel Mytilus galloprovincialis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 951:175567. [PMID: 39153630 DOI: 10.1016/j.scitotenv.2024.175567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 08/13/2024] [Accepted: 08/14/2024] [Indexed: 08/19/2024]
Abstract
Titanium dioxide nanoparticle (nTiO2) pollution of marine environments is rapidly increasing with potentially deleterious effects on wildlife. Yet, the impacts of nTiO2 on reproduction remain poorly understood. This is especially the case for broadcast spawners, who are likely to be more severely impacted by environmental disturbances because their gametes are directly exposed to the environment during fertilisation. In addition, it is unclear whether rising water temperatures will further exacerbate the impact of nTiO2 toxicity. Here, in a series of fertilisation trials, we systematically examine the main and interactive effects of nTiO2 exposure and seawater temperature on fertilisation success in the Mediterranean mussel Mytilus galloprovincialis. Specifically, our fertilisation trials explored whether nTiO2 exposure influences fertilisation rates when (i) eggs alone are exposed, (ii) both sperm and eggs are exposed simultaneously, and (iii) whether increases in seawater temperature interact with nTiO2 exposure to influence fertilisation rates. We also ask whether changes in nTiO2 concentrations influence key sperm motility traits using computer-assisted sperm analysis (CASA). In fertilisation trials for treatment groups (i) and (ii), we found no main effects of nTiO2 at environmentally relevant concentrations of 5, 10 and 50 μg L-1 on fertilisation capacity relative to the control. Consistent with these findings, we found no effect of nTiO2 exposure on sperm motility. However, in treatment group (iii), when fertilisation trials were conducted at higher temperatures (+6 °C), exposure of gametes from both sexes to 10 μg L-1 nTiO2 led to a reduction in fertilisation rates that was significantly greater than when gametes were exposed to elevated temperature alone. These interacting effects of nTiO2 exposure and seawater temperature demonstrate the toxic potential of nTiO2 for fertilisation processes in a system that is likely to be impacted heavily by predicted future increases in sea surface temperatures.
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Affiliation(s)
- Annika Dose
- School of Biological Sciences, University of Western Australia, 6009, WA, Australia.
| | - Winn Jason Kennington
- School of Biological Sciences, University of Western Australia, 6009, WA, Australia.
| | - Jonathan Paul Evans
- School of Biological Sciences, University of Western Australia, 6009, WA, Australia.
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2
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Yang H, Yang X, Zhang Q, Lu D, Wang W, Zhang H, Yu Y, Liu X, Zhang A, Liu Q, Jiang G. Precisely Identifying the Sources of Magnetic Particles by Hierarchical Classification-Aided Isotopic Fingerprinting. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:9770-9781. [PMID: 38781163 DOI: 10.1021/acs.est.4c02702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Magnetic particles (MPs), with magnetite (Fe3O4) and maghemite (γ-Fe2O3) as the most abundant species, are ubiquitously present in the natural environment. MPs are among the most applied engineered particles and can be produced incidentally by various human activities. Identification of the sources of MPs is crucial for their risk assessment and regulation, which, however, is still an unsolved problem. Here, we report a novel approach, hierarchical classification-aided stable isotopic fingerprinting, to address this problem. We found that naturally occurring, incidental, and engineered MPs have distinct Fe and O isotopic fingerprints due to significant Fe/O isotope fractionation during their generation processes, which enables the establishment of an Fe-O isotopic library covering complex sources. Furthermore, we developed a three-level machine learning model that not only can distinguish the sources of MPs with a high precision (94.3%) but also can identify the multiple species (Fe3O4 or γ-Fe2O3) and synthetic routes of engineered MPs with a precision of 81.6%. This work represents the first reliable strategy for the precise source tracing of particles with multiple species and complex sources.
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Affiliation(s)
- Hang Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xuezhi Yang
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310000, China
| | - Qinghua Zhang
- College of Geography and Environmental Science, Henan University, Kaifeng 475004, China
| | - Dawei Lu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weichao Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310000, China
| | - Huazhou Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunbo Yu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xian Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Aiqian Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qian Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute of Environment and Health, Jianghan University, Wuhan 430056, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
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3
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Peng W, Lu J, Kuang J, Tang R, Guan F, Xie K, Zhou L, Yuan Y. Enhancement of hydrogenotrophic methanogenesis for methane production by nano zero-valent iron in soils. ENVIRONMENTAL RESEARCH 2024; 247:118232. [PMID: 38262517 DOI: 10.1016/j.envres.2024.118232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 01/25/2024]
Abstract
Nanoscale zero-valent iron (nZVI) is attracting increasing attention as the most commonly used environmental remediation material. However, given the high surface area and strong reducing capabilities of nZVI, there is a lack of understanding regarding its effects on the complex anaerobic methane production process in flooded soils. To elucidate the mechanism of CH4 production in soil exposed to nZVI, paddy soil was collected and subjected to anaerobic culture under continuous flooding conditions, with various dosages of nZVI applied. The results showed that the introduction of nZVI into anaerobic flooded rice paddy systems promoted microbial utilization of acetate and carbon dioxide as carbon sources for methane production, ultimately leading to increased methane production. Following the introduction of nZVI into the soil, there was a rapid increase in hydrogen levels in the headspace, surpassing that of the control group. The hydrogen levels in both the experimental and control groups were depleted by the 29th day of culture. These findings suggest that nZVI exposure facilitates the enrichment of hydrogenotrophic methanogens, providing them with a favorable environment for growth. Additionally, it affected soil physicochemical properties by increasing pH and electrical conductivity. The metagenomic analysis further indicates that under exposure to nZVI, hydrogenotrophic methanogens, particularly Methanobacteriaceae and Methanocellaceae, were enriched. The relative abundance of genes such as mcrA and mcrB associated with methane production was increased. This study provides important theoretical insights into the response of key microbes, functional genes, and methane production pathways to nZVI during anaerobic methane production in rice paddy soils, offering fundamental insights into the long-term fate and risks associated with the introduction of nZVI into soils.
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Affiliation(s)
- Weijie Peng
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
| | - Jinrong Lu
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
| | - Jiajie Kuang
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
| | - Rong Tang
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
| | - Fengyi Guan
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
| | - Kunting Xie
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
| | - Lihua Zhou
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Yong Yuan
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
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Keller AA, Zheng Y, Praetorius A, Quik JTK, Nowack B. Predicting environmental concentrations of nanomaterials for exposure assessment - a review. NANOIMPACT 2024; 33:100496. [PMID: 38266914 DOI: 10.1016/j.impact.2024.100496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/11/2023] [Accepted: 01/19/2024] [Indexed: 01/26/2024]
Abstract
There have been major advances in the science to predict the likely environmental concentrations of nanomaterials, which is a key component of exposure and subsequent risk assessment. Considerable progress has been since the first Material Flow Analyses (MFAs) in 2008, which were based on very limited information, to more refined current tools that take into account engineered nanoparticle (ENP) size distribution, form, dynamic release, and better-informed release factors. These MFAs provide input for all environmental fate models (EFMs), that generate estimates of particle flows and concentrations in various environmental compartments. While MFA models provide valuable information on the magnitude of ENP release, they do not account for fate processes, such as homo- and heteroaggregation, transformations, dissolution, or corona formation. EFMs account for these processes in differing degrees. EFMs can be divided into multimedia compartment models (e.g., atmosphere, waterbodies and their sediments, soils in various landuses), of which there are currently a handful with varying degrees of complexity and process representation, and spatially-resolved watershed models which focus on the water and sediment compartments. Multimedia models have particular applications for considering predicted environmental concentrations (PECs) in particular regions, or for developing generic "fate factors" (i.e., overall persistence in a given compartment) for life-cycle assessment. Watershed models can track transport and eventual fate of emissions into a flowing river, from multiple sources along the waterway course, providing spatially and temporally resolved PECs. Both types of EFMs can be run with either continuous sources of emissions and environmental conditions, or with dynamic emissions (e.g., temporally varying for example as a new nanomaterial is introduced to the market, or with seasonal applications), to better understand the situations that may lead to peak PECs that are more likely to result in exceedance of a toxicological threshold. In addition, bioaccumulation models have been developed to predict the internal concentrations that may accumulate in exposed organisms, based on the PECs from EFMs. The main challenge for MFA and EFMs is a full validation against observed data. To date there have been no field studies that can provide the kind of dataset(s) needed for a true validation of the PECs. While EFMs have been evaluated against a few observations in a small number of locations, with results that indicate they are in the right order of magnitude, there is a great need for field data. Another major challenge is the input data for the MFAs, which depend on market data to estimate the production of ENPs. The current information has major gaps and large uncertainties. There is also a lack of robust analytical techniques for quantifying ENP properties in complex matrices; machine learning may be able to fill this gap. Nevertheless, there has been major progress in the tools for generating PECs. With the emergence of nano- and microplastics as a leading environmental concern, some EFMs have been adapted to these materials. However, caution is needed, since most nano- and microplastics are not engineered, therefore their characteristics are difficult to generalize, and there are new fate and transport processes to consider.
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Affiliation(s)
- Arturo A Keller
- Bren School of Environmental Science and Management, University of California Santa Barbara, United States of America.
| | - Yuanfang Zheng
- Empa-Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland
| | - Antonia Praetorius
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, the Netherlands
| | - Joris T K Quik
- National Institute for Public Health and the Environment, Centre for Sustainability Health and Environment, Bilthoven, the Netherlands
| | - Bernd Nowack
- Empa-Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland
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5
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Liu S, Miao L, Li B, Shan S, Li D, Hou J. Long-term effects of Ag NPs on denitrification in sediment: Importance of Ag NPs exposure ways in aquatic ecosystems. WATER RESEARCH 2023; 242:120283. [PMID: 37413744 DOI: 10.1016/j.watres.2023.120283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/17/2023] [Accepted: 06/28/2023] [Indexed: 07/08/2023]
Abstract
The widespread use of silver nanoparticles (Ag NPs) inevitably leads to their increasing release into aquatic systems, with studies indicating that the mode of Ag NPs entry into water significantly affects their toxicity and ecological risks. However, there is a lack of research on the impact of different exposure ways of Ag NPs on functional bacteria in sediment. This study investigates the long-term influence of Ag NPs on denitrification process in sediments by comparing denitrifies responses to single (pulse injection of 10 mg/L) and repetitive (1 mg/L × 10 times) Ag NPs treatments over 60-day incubation. Results showed that a single exposure of 10 mg/L Ag NPs caused an obvious toxicity on activity and abundance of denitrifying bacteria on the first 30 days, reflecting by the decreased NADH amount, ETS activity, NIR and NOS activity, and nirK gene copy number, which resulted in a significant decline of denitrification rate in sediments (from 0.59 to 0.64 to 0.41-0.47 μmol15N L-1 h-1). While inhibition was mitigated with time and denitrification process recovered to the normal at the end of the experiment, the accumulated nitrate generated in the system showed that the recovery of microbial function did not mean the restoration of aquatic ecosystem after pollution. Differently, the repetitive exposure of 1 mg/L Ag NPs exhibited the evident inhibition on metabolism, abundance, and function of denitrifiers on Day 60, due to the accumulated amount of Ag NPs with the increased dosing number, indicating that the accumulated toxicity on functional microorganic community of repetitive exposure in less toxic concentration. Our study highlights the importance of Ag NPs entry pathways into aquatic ecosystem on their ecological risks, which affected dynamic responses of microbial function to Ag NPs.
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Affiliation(s)
- Songqi Liu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Lingzhan Miao
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Boling Li
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Sujie Shan
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Dapeng Li
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China.
| | - Jun Hou
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
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6
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Gottschalk F, Debray B, Klaessig F, Park B, Lacome JM, Vignes A, Portillo VP, Vázquez-Campos S, Hendren CO, Lofts S, Harrison S, Svendsen C, Kaegi R. Predicting accidental release of engineered nanomaterials to the environment. NATURE NANOTECHNOLOGY 2023; 18:412-418. [PMID: 36732591 DOI: 10.1038/s41565-022-01290-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 11/07/2022] [Indexed: 06/18/2023]
Abstract
Challenges in distinguishing between natural and engineered nanomaterials (ENMs) and the lack of historical records on ENM accidents have hampered attempts to estimate the accidental release and associated environmental impacts of ENMs. Building on knowledge from the nuclear power industry, we provide an assessment of the likelihood of accidental release rates of ENMs within the next 10 and 30 years. We evaluate risk predictive methodology and compare the results with empirical evidence, which enables us to propose modelling approaches to estimate accidental release risk probabilities. Results from two independent modelling approaches based on either assigning 0.5% of reported accidents to ENM-releasing accidents (M1) or based on an evaluation of expert opinions (M2) correlate well and predict severe accidental release of 7% (M1) in the next 10 years and of 10% and 20% for M2 and M1, respectively, in the next 30 years. We discuss the relevance of these results in a regulatory context.
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Affiliation(s)
- Fadri Gottschalk
- ETSS AG, Engineering, Technical and Scientific Services, Strada, Switzerland
| | - Bruno Debray
- Institut national de l'environment industriel et des risques, Verneuil-en-Halatte, France
| | | | | | - Jean-Marc Lacome
- Institut national de l'environment industriel et des risques, Verneuil-en-Halatte, France
| | - Alexis Vignes
- Institut national de l'environment industriel et des risques, Verneuil-en-Halatte, France
| | | | | | - Christine Ogilvie Hendren
- Center for the Environmental Implications of Nano Technology (CEINT), Duke University, Durham, NC, USA
| | - Stephen Lofts
- UK Centre for Ecology & Hydrology, Lancaster Environment Centre, Bailrigg, UK
| | - Samuel Harrison
- UK Centre for Ecology & Hydrology, Lancaster Environment Centre, Bailrigg, UK
| | | | - Ralf Kaegi
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland.
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7
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Chapon V, Brignon JM, Gasperi J. Non-persistent chemicals in polymer and non-polymer products can cause persistent environmental contamination: evidence with DEHP in Europe. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:44952-44962. [PMID: 36697986 DOI: 10.1007/s11356-023-25405-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 01/14/2023] [Indexed: 06/17/2023]
Abstract
Bis(2-ethylhexyl) phthalate (DEHP) is a plasticizer that has been massively used since the second part of the twentieth century by the plastic industry to provide softness properties to PVC. This chemical is considered as toxic to reproduction and endocrine disrupting, and a wide range of uses are now forbidden by the EU. Despite these regulations, DEHP is still found to be a widespread contaminant in watersheds in the EU. In this study, we calculate retrospective and prospective scenarios of past and future emissions of DEHP in the environment (water, soil, air) in the EU 28, taking into account the entire lifecycle of the substance, from its production and its inclusion in polymer (mainly PVC) and non-polymer products (adhesive and sealant, ceramic and printing ink) to the recycling and end of life of these products. We develop a stock and flow model based on dynamically estimating the stocks of DEHP present in products on the market. Our results show that the introduction of recent regulations to limit the use of DEHP (that bring a 70% reduction of DEHP contained in products placed on the market in 2020 and 75% in 2040) will not reduce significantly future emissions. This persistence of emissions is explained by the high stocks built in the economy and the long-term presence of soft PVC waste in landfills. Our results suggest that DEHP will remain a cause of environmental contamination many decades after uses have declined and even ceased, and it appears to be too late for market regulation at the market stage to offset the effect of past stock buildup and landfilling. It is likely that several chemicals that are not considered as persistent and therefore not the focus of international regulations could exhibit the same characteristics. Regulations should avoid possible use patterns that make hazardous chemicals persistent in products, because they have the potential to create long-term and almost irreversible environmental pollution and impacts.
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Affiliation(s)
- Valentin Chapon
- Ineris, Parc Technologique ALATA, 2, 60550, Verneuil-en-Halatte, BP, France.
| | - Jean-Marc Brignon
- Ineris, Parc Technologique ALATA, 2, 60550, Verneuil-en-Halatte, BP, France
| | - Johnny Gasperi
- GERS-LEE, Univ Gustave Eiffel, IFSTTAR, F-44344, Bouguenais, France
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8
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Hou J, Hu C, Wang Y, Zhang J, White JC, Yang K, Lin D. Nano-bio interfacial interactions determined the contact toxicity of nTiO 2 to nematodes in various soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 835:155456. [PMID: 35469863 DOI: 10.1016/j.scitotenv.2022.155456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/16/2022] [Accepted: 04/19/2022] [Indexed: 06/14/2023]
Abstract
The biological effect of soilborne nanoparticles (NPs) is a manifestation of soil-NMs-bio interactions. Soil factors are known to restructure NPs surfaces and thus influence the nanotoxicity. However, the mechanisms by which environmental factors affecting nano-bio interactions to aggravate or alleviate nanotoxicities are poorly understood. Herein, we compared the toxicity of TiO2 NPs (nTiO2) in five soils using the model nematode (Caenorhabditis elegans), and investigated the variation of nano-bio interactions under different conditions. A correlation analysis showed that pH and dissolved organic matter (DOM) were dominant regulators of nTiO2 toxicity. At the nano-bio interface, low pH (5.0) led to nTiO2 adhesion to micron-sized furrows and aggravated dermal wrinkling, while humid acid (HA) alleviated these impacts. Mechanically, low pH increased nTiO2 adhesion through enhanced electrostatic attraction and subsequent stimulation of mucin and collagen synthesis, resulting in a positive feed cycle of pH-dependent contact nanotoxicity. HA not only prevented nTiO2 adhesion onto the epidermis due to its negative charge, but also relieved the overstimulation of stress response pathways, thereby alleviating nanotoxicity. These findings broaden our knowledge of how NPs induce contact toxicity in soil invertebrates through specific biointerfacial interactions, and highlight the important role of DOM in alleviating the combined hazards of NPs and soil acidification.
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Affiliation(s)
- Jie Hou
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Chao Hu
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Yanlong Wang
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Jianying Zhang
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, CT 06504, USA
| | - Kun Yang
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Daohui Lin
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China; Zhejiang Ecological Civilization Academy, Anji 313300, China.
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9
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Li Y, Zhu Y, Zhao B, Yao Q, Xu H, Lv S, Wang J, Sun Z, Li Y, Guo C. Amorphous silica nanoparticles caused lung injury through the induction of epithelial apoptosis via ROS/Ca 2+/DRP1-mediated mitochondrial fission signaling. Nanotoxicology 2022; 16:713-732. [PMID: 36441139 DOI: 10.1080/17435390.2022.2144774] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 11/03/2022] [Indexed: 11/30/2022]
Abstract
The adverse effects of amorphous silica nanoparticles (SiNPs) exposure on the respiratory system were increasingly recognized, however, its potential pathogenesis still remains not fully elucidated. So, this study aimed to explore its effects on pulmonary injury, and to investigate related mechanisms. Histological investigations illustrated SiNPs triggered the lung injury, mainly manifested as alveolar structure destruction, collagen deposition, and mitochondrial ultrastructural injury. In particular, SiNPs greatly enhanced pulmonary ROS and TUNEL positive rate in lungs, both of which were positively correlated with lung impairments. Further, the underlying mechanisms were investigated in cultured human bronchial epithelial cells (16HBE). Consistent with the in vivo findings, SiNPs caused the impairments on mitochondrial structure, as well as the activation of ROS generation and oxidative injury. Upon SiNPs stimuli, mitochondrial respiration was greatly inhibited, while Ca2+ overload in cytosol and mitochondria owing to ER calcium release was noticed, resulting in mitochondrial-dependent epithelial apoptosis. More importantly, mitochondrial dynamics was imbalanced toward a fission type, as evidenced by upregulated DRP1 and its phosphorylation at Ser616 (DRP1s616), while downregulated DRP1s637, and also MFN1, MFN2. Mechanistic investigations revealed that the activation of ROS/Ca2+ signaling promoted DRP1-mediated mitochondrial fission by SiNPs, forming a vicious cycle, and ultimately contributing to apoptosis in 16HBE. In summary, our results disclosed SiNPs caused pulmonary injury through the induction of epithelial apoptosis via a ROS/Ca2+/DRP1-mediated mitochondrial fission axis.
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Affiliation(s)
- Yan Li
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, China
| | - Yawen Zhu
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, China
| | - Bosen Zhao
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, China
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, China
| | - Qing Yao
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, China
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, China
| | - Hailin Xu
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, China
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, China
| | - Songqing Lv
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, China
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, China
| | - Ji Wang
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, China
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, China
| | - Zhiwei Sun
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, China
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, China
| | - Yanbo Li
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, China
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, China
| | - Caixia Guo
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, China
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10
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Yang Y, Fan X, Zhang J, Qiao S, Wang X, Zhang X, Miao L, Hou J. A critical review on the interaction of iron-based nanoparticles with blue-green algae and their metabolites: From mechanisms to applications. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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11
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Kansara K, Bolan S, Radhakrishnan D, Palanisami T, Al-Muhtaseb AH, Bolan N, Vinu A, Kumar A, Karakoti A. A critical review on the role of abiotic factors on the transformation, environmental identity and toxicity of engineered nanomaterials in aquatic environment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 296:118726. [PMID: 34953948 DOI: 10.1016/j.envpol.2021.118726] [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: 09/02/2021] [Revised: 12/08/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
Engineered nanomaterials (ENMs) are at the forefront of many technological breakthroughs in science and engineering. The extensive use of ENMs in several consumer products has resulted in their release to the aquatic environment. ENMs entering the aquatic ecosystem undergo a dynamic transformation as they interact with organic and inorganic constituents present in aquatic environment, specifically abiotic factors such as NOM and clay minerals, and attain an environmental identity. Thus, a greater understanding of ENM-abiotic factors interactions is required for an improved risk assessment and sustainable management of ENMs contamination in the aquatic environment. This review integrates fundamental aspects of ENMs transformation in aquatic environment as impacted by abiotic factors, and delineates the recent advances in bioavailability and ecotoxicity of ENMs in relation to risk assessment for ENMs-contaminated aquatic ecosystem. It specifically discusses the mechanism of transformation of different ENMs (metals, metal oxides and carbon based nanomaterials) following their interaction with the two most common abiotic factors NOM and clay minerals present within the aquatic ecosystem. The review critically discusses the impact of these mechanisms on the altered ecotoxicity of ENMs including the impact of such transformation at the genomic level. Finally, it identifies the gaps in our current understanding of the role of abiotic factors on the transformation of ENMs and paves the way for the future research areas.
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Affiliation(s)
- Krupa Kansara
- Biological and Life Sciences, School of Arts and Science, Ahmedabad University, Navrangpura, Ahmedabad, Gujarat, - 380009, India
| | - Shiv Bolan
- Global Innovative Center for Advanced Nanomaterials (GICAN), School of Engineering, College of Engineering Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Deepika Radhakrishnan
- Global Innovative Center for Advanced Nanomaterials (GICAN), School of Engineering, College of Engineering Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Thava Palanisami
- Global Innovative Center for Advanced Nanomaterials (GICAN), School of Engineering, College of Engineering Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Ala'a H Al-Muhtaseb
- Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Muscat, Oman
| | - Nanthi Bolan
- School of Agriculture and Environment, Institute of Agriculture, University of Western Australia, Perth, Australia
| | - Ajayan Vinu
- Global Innovative Center for Advanced Nanomaterials (GICAN), School of Engineering, College of Engineering Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Ashutosh Kumar
- Biological and Life Sciences, School of Arts and Science, Ahmedabad University, Navrangpura, Ahmedabad, Gujarat, - 380009, India
| | - Ajay Karakoti
- Global Innovative Center for Advanced Nanomaterials (GICAN), School of Engineering, College of Engineering Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia.
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12
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Reyes-Herrera J, Acosta-Slane D, Castillo-Michel H, Pradas del Real AE, Vogel-Mikus K, Benetti F, Roman M, Villanova J, Valles-Aragón MC. Detection and Characterization of TiO 2 Nanomaterials in Sludge from Wastewater Treatment Plants of Chihuahua State, Mexico. NANOMATERIALS 2022; 12:nano12050744. [PMID: 35269232 PMCID: PMC8911657 DOI: 10.3390/nano12050744] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/09/2022] [Accepted: 02/17/2022] [Indexed: 11/28/2022]
Abstract
TiO2 nanoparticles (TiO2-NPs) have a wide range of industrial applications (paintings, sunscreens, food and cosmetics) and is one of the most intensively used nanomaterials worldwide. Leaching from commercial products TiO2-NPs are predicted to significantly accumulate in wastewater sludges, which are then often used as soil amendment. In this work, sludge samples from four wastewater treatment plants of the Chihuahua State in Mexico were obtained during spring and summer (2017). A comprehensive characterization study was performed by X-ray based (laboratory and synchrotron) techniques and electron microscopy. Ti was detected in all sludge samples (1810–2760 mg/kg) mainly as TiO2 particles ranging from 40 nm up to hundreds of nm. Micro-XANES data was analyzed by principal component analysis and linear combination fitting enabling the identification of three predominant Ti species: anatase, rutile and ilmenite. Micro-XANES from the smaller Ti particles was predominantly anatase (68% + 32% rutile), suggesting these TiO2-NPs originate from paintings and cosmetics. TEM imaging confirmed the presence of nanoscale Ti with smooth surface morphologies resembling engineered TiO2-NPs. The size and crystalline phase of TiO2-NPs in the sludge from this region suggest increased reactivity and potential toxicity to agro-systems. Further studies should be dedicated to evaluating this.
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Affiliation(s)
- Juan Reyes-Herrera
- European Synchrotron Radiation Facility, B.P.220, CEDEX 09, 38043 Grenoble, France; (J.R.-H.); (H.C.-M.); (J.V.)
| | - Damaris Acosta-Slane
- Faculty of Agrotechnological Sciences, Autonomous University of Chihuahua, Campus 1, Pascual Orozco, Chihuahua 31350, Mexico;
| | - Hiram Castillo-Michel
- European Synchrotron Radiation Facility, B.P.220, CEDEX 09, 38043 Grenoble, France; (J.R.-H.); (H.C.-M.); (J.V.)
| | - Ana E. Pradas del Real
- Department Agroenvironmental Research, Madrid’s Institute for Rural Research and Development, Agricultural and Food, Leganitos 47, 28013 Madrid, Spain;
| | - Katarina Vogel-Mikus
- Department of Biology, University of Ljubljana, Večna pot 111, SI-1000 Ljubljana, Slovenia;
- Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Federico Benetti
- EcamRicert Srl, European Centre for the Sustainable Impact of Nanotechnology, Corso Stati Uniti 4, 35127 Padua, Italy;
| | - Marco Roman
- Department of Environmental Sciences Informatics and Statistics, University Ca’ Foscari, Dorsoduro 2137, 30123 Venezia, Italy;
| | - Julie Villanova
- European Synchrotron Radiation Facility, B.P.220, CEDEX 09, 38043 Grenoble, France; (J.R.-H.); (H.C.-M.); (J.V.)
| | - M. Cecilia Valles-Aragón
- Faculty of Agrotechnological Sciences, Autonomous University of Chihuahua, Campus 1, Pascual Orozco, Chihuahua 31350, Mexico;
- Correspondence: ; Tel.: +52-(614)-2396219
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13
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Adeel M, Shakoor N, Shafiq M, Pavlicek A, Part F, Zafiu C, Raza A, Ahmad MA, Jilani G, White JC, Ehmoser EK, Lynch I, Ming X, Rui Y. A critical review of the environmental impacts of manufactured nano-objects on earthworm species. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 290:118041. [PMID: 34523513 DOI: 10.1016/j.envpol.2021.118041] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 08/07/2021] [Accepted: 08/23/2021] [Indexed: 05/27/2023]
Abstract
The presence of manufactured nano-objects (MNOs) in various consumer or their (future large-scale) use as nanoagrochemical have increased with the rapid development of nanotechnology and therefore, concerns associated with its possible ecotoxicological effects are also arising. MNOs are releasing along the product life cycle, consequently accumulating in soils and other environmental matrices, and potentially leading to adverse effects on soil biota and their associated processes. Earthworms, of the group of Oligochaetes, are an ecologically significant group of organisms and play an important role in soil remediation, as well as acting as a potential vector for trophic transfer of MNOs through the food chain. This review presents a comprehensive and critical overview of toxic effects of MNOs on earthworms in soil system. We reviewed pathways of MNOs in agriculture soil environment with its expected production, release, and bioaccumulation. Furthermore, we thoroughly examined scientific literature from last ten years and critically evaluated the potential ecotoxicity of 16 different metal oxide or carbon-based MNO types. Various adverse effects on the different earthworm life stages have been reported, including reduction in growth rate, changes in biochemical and molecular markers, reproduction and survival rate. Importantly, this literature review reveals the scarcity of long-term toxicological data needed to actually characterize MNOs risks, as well as an understanding of mechanisms causing toxicity to earthworm species. This review sheds light on this knowledge gap as investigating bio-nano interplay in soil environment improves our major understanding for safer applications of MNOs in the agriculture environment.
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Affiliation(s)
- Muhammad Adeel
- BNU-HKUST Laboratory of Green Innovation, Advanced Institute of Natural Sciences, Beijing Normal University Zhuhai Subcampus, 18 Jinfeng Road, Tangjiawan, Zhuhai, Guangdong, PR China; Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation and College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, PR China
| | - Noman Shakoor
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation and College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, PR China
| | - Muhammad Shafiq
- University of Guadalajara-University Center for Biological and Agricultural Sciences, Camino Ing. Ramón Padilla Sánchez núm. 2100, La Venta del Astillero, Zapopan, Jalisco, CP. 45110, Mexico
| | - Anna Pavlicek
- Department of Water-Atmosphere-Environment, Institute of Waste Management, University of Natural Resources and Life Sciences, Muthgasse 107, 1190, Vienna, Austria; Department of Nanobiotechnology, Institute for Synthetic Bioarchitectures, University of Natural Resources and Life Sciences, Muthgasse 11/II, 1190, Vienna, Austria
| | - Florian Part
- Department of Water-Atmosphere-Environment, Institute of Waste Management, University of Natural Resources and Life Sciences, Muthgasse 107, 1190, Vienna, Austria; Department of Nanobiotechnology, Institute for Synthetic Bioarchitectures, University of Natural Resources and Life Sciences, Muthgasse 11/II, 1190, Vienna, Austria
| | - Christian Zafiu
- Department of Water-Atmosphere-Environment, Institute of Waste Management, University of Natural Resources and Life Sciences, Muthgasse 107, 1190, Vienna, Austria
| | - Ali Raza
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, 38000, Pakistan
| | - Muhammad Arslan Ahmad
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China
| | - Ghulam Jilani
- Institute of Soil Science, PMAS Arid Agriculture University Rawalpindi, Pakistan
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, CT, 06504, USA
| | - Eva-Kathrin Ehmoser
- Department of Water-Atmosphere-Environment, Institute of Waste Management, University of Natural Resources and Life Sciences, Muthgasse 107, 1190, Vienna, Austria
| | - Iseult Lynch
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, B15 2TT, Birmingham, UK
| | - Xu Ming
- BNU-HKUST Laboratory of Green Innovation, Advanced Institute of Natural Sciences, Beijing Normal University Zhuhai Subcampus, 18 Jinfeng Road, Tangjiawan, Zhuhai, Guangdong, PR China
| | - Yukui Rui
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation and College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, PR China.
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14
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Azimzada A, Jreije I, Hadioui M, Shaw P, Farner JM, Wilkinson KJ. Quantification and Characterization of Ti-, Ce-, and Ag-Nanoparticles in Global Surface Waters and Precipitation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:9836-9844. [PMID: 34181400 DOI: 10.1021/acs.est.1c00488] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Nanoparticle (NP) emissions to the environment are increasing as a result of anthropogenic activities, prompting concerns for ecosystems and human health. In order to evaluate the risk of NPs, it is necessary to know their concentrations in various environmental compartments on regional and global scales; however, these data have remained largely elusive due to the analytical difficulties of measuring NPs in complex natural matrices. Here, we measure NP concentrations and sizes for Ti-, Ce-, and Ag-containing NPs in numerous global surface waters and precipitation samples, and we provide insights into their compositions and origins (natural or anthropogenic). The results link NP occurrences and distributions to particle type, origin, and sampling location. Based on measurements from 46 sites across 13 countries, total Ti- and Ce-NP concentrations (regardless of origin) were often found to be within 104 to 107 NP mL-1, whereas Ag NPs exhibited sporadic occurrences with low concentrations generally up to 105 NP mL-1. This generally corresponded to mass concentrations of <1 ng L-1 for Ag-NPs, <100 ng L-1 for Ce-NPs, and <10 μg L-1 for Ti-NPs, given that measured sizes were often below 15 nm for Ce- and Ag-NPs and above 30 nm for Ti-NPs. In view of current toxicological data, the observed NP levels do not yet appear to exceed toxicity thresholds for the environment or human health; however, NPs of likely anthropogenic origins appear to be already substantial in certain areas, such as urban centers. This work lays the foundation for broader experimental NP surveys, which will be critical for reliable NP risk assessments and the regulation of nano-enabled products.
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Affiliation(s)
- Agil Azimzada
- Department of Chemistry, University of Montreal, Montreal, Quebec H3C 3J7, Canada
- Department of Chemical Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
| | - Ibrahim Jreije
- Department of Chemistry, University of Montreal, Montreal, Quebec H3C 3J7, Canada
| | - Madjid Hadioui
- Department of Chemistry, University of Montreal, Montreal, Quebec H3C 3J7, Canada
| | - Phil Shaw
- Nu Instruments, Wrexham LL13 9XS, U.K
| | - Jeffrey M Farner
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Kevin J Wilkinson
- Department of Chemistry, University of Montreal, Montreal, Quebec H3C 3J7, Canada
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15
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Souza MR, Mazaro-Costa R, Rocha TL. Can nanomaterials induce reproductive toxicity in male mammals? A historical and critical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 769:144354. [PMID: 33736249 DOI: 10.1016/j.scitotenv.2020.144354] [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: 09/23/2020] [Revised: 11/06/2020] [Accepted: 12/05/2020] [Indexed: 05/28/2023]
Abstract
The nanotechnology enabled the development of nanomaterials (NMs) with a variety of industrial, biomedical, and consumer applications. However, the mechanism of action (MoA) and toxicity of NMs remain unclear, especially in the male reproductive system. Thus, this study aimed to perform a bibliometric and systematic review of the literature on the toxic effects of different types of NMs on the male reproductive system and function in mammalian models. A series of 236 articles related to the in vitro and in vivo reproductive toxicity of NMs in mammalian models were analyzed. The data concerning the bioaccumulation, experimental conditions (types of NMs, species, cell lines, exposure period, and routes of exposure), and the MoA and toxicity of NMs were summarized and discussed. Results showed that this field of research began in 2005 and has experienced an exponential increase since 2012. Revised data confirmed that the NMs have the ability to cross the blood-testis barrier and bioaccumulate in several organs of the male reproductive system, such as testis, prostate, epididymis, and seminal vesicle. A similar MoA and toxicity were observed after in vitro and in vivo exposure to NMs. The NM reproductive toxicity was mainly related to ROS production, oxidative stress, DNA damage and apoptosis. In conclusion, the NM exposure induces bioaccumulation and toxic effects on male reproductive system of mammal models, confirming its potential risk to human and environmental health. The knowledge concerning the NM reproductive toxicity contributes to safety and sustainable use of nanotechnology.
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Affiliation(s)
- Maingredy Rodrigues Souza
- Laboratory of Physiology and Pharmacology of Reproduction, Institute of Biological Sciences, Federal University of Goiás, Goiás, Brazil; Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiás, Brazil
| | - Renata Mazaro-Costa
- Laboratory of Physiology and Pharmacology of Reproduction, Institute of Biological Sciences, Federal University of Goiás, Goiás, Brazil
| | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiás, Brazil.
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16
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Muccifora S, Castillo-Michel H, Barbieri F, Bellani L, Ruffini Castiglione M, Spanò C, Pradas del Real AE, Giorgetti L, Tassi EL. Synchrotron Radiation Spectroscopy and Transmission Electron Microscopy Techniques to Evaluate TiO 2 NPs Incorporation, Speciation, and Impact on Root Cells Ultrastructure of Pisum sativum L. Plants. NANOMATERIALS 2021; 11:nano11040921. [PMID: 33916614 PMCID: PMC8066591 DOI: 10.3390/nano11040921] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/23/2021] [Accepted: 04/02/2021] [Indexed: 11/22/2022]
Abstract
Biosolids (Bs) for use in agriculture are an important way for introducing and transferring TiO2 nanoparticles (NPs) to plants and food chain. Roots of Pisum sativum L. plants grown in Bs-amended soils spiked with TiO2 800 mg/kg as rutile NPs, anatase NPs, mixture of both NPs and submicron particles (SMPs) were investigated by Transmission Electron Microscopy (TEM), synchrotron radiation based micro X-ray Fluorescence and micro X-ray Absorption Near-Edge Structure (µXRF/µXANES) and Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). TEM analysis showed damages in cells ultrastructure of all treated samples, although a more evident effect was observed with single anatase or rutile NPs treatments. Micro-XRF and TEM evidenced the presence of nano and SMPs mainly in the cortex cells near the rhizodermis. Micro-XRF/micro-XANES analysis revealed anatase, rutile, and ilmenite as the main TiO2 polymorphs in the original soil and Bs, and the preferential anatase uptake by the roots. For all treatments Ti concentration in the roots increased by 38–56%, however plants translocation factor (TF) increased mostly with NPs treatment (261–315%) and less with SMPs (about 85%), with respect to control. In addition, all samples showed a limited transfer of TiO2 to the shoots (very low TF value). These findings evidenced a potential toxicity of TiO2 NPs present in Bs and accumulating in soil, suggesting the necessity of appropriate regulations for the occurrence of NPs in Bs used in agriculture.
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Affiliation(s)
- Simonetta Muccifora
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy; (S.M.); (F.B.); (L.B.)
| | - Hiram Castillo-Michel
- European Synchrotron Radiation Facility, Beamline ID21, 71 Av. Rue des Martyrs, 38000 Grenoble, France; (H.C.-M.); (A.E.P.d.R.)
| | - Francesco Barbieri
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy; (S.M.); (F.B.); (L.B.)
| | - Lorenza Bellani
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy; (S.M.); (F.B.); (L.B.)
- Institute of Agricultural Biology and Biotechnology, National Research Council, Via Moruzzi 1, 56124 Pisa, Italy;
| | | | - Carmelina Spanò
- Department of Biology, University of Pisa, Via Ghini 13, 56126 Pisa, Italy; (M.R.C.); (C.S.)
| | - Ana E. Pradas del Real
- European Synchrotron Radiation Facility, Beamline ID21, 71 Av. Rue des Martyrs, 38000 Grenoble, France; (H.C.-M.); (A.E.P.d.R.)
| | - Lucia Giorgetti
- Institute of Agricultural Biology and Biotechnology, National Research Council, Via Moruzzi 1, 56124 Pisa, Italy;
| | - Eliana L. Tassi
- Research Institute on Terrestrial Ecosystems, National Research Council, Via Moruzzi 1, 56124 Pisa, Italy
- Correspondence:
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17
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Adam V, Wu Q, Nowack B. Integrated dynamic probabilistic material flow analysis of engineered materials in all European countries. NANOIMPACT 2021; 22:100312. [PMID: 35559969 DOI: 10.1016/j.impact.2021.100312] [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: 12/08/2020] [Revised: 03/09/2021] [Accepted: 03/15/2021] [Indexed: 06/15/2023]
Abstract
Uncertainties remain regarding the potential environmental risks of engineered nanomaterials, reflecting missing information on both the exposure and the hazard sides. Probabilistic material flow analysis (PMFA) is a useful exposure assessment tool that maps the flows of a substance through its lifecycle towards the environment, taking into account the uncertainties associated with the input data. In the last years, several refinements have been made to the original PMFA method, increasing its complexity with respect to systems dynamics, fate during recycling and reprocessing and forms of release. In this work, an integrated dynamic probabilistic material flow analysis (IDPMFA) was developed that combines all separate advancements of the method in one overarching software code. The new method was used to assess the forms in which nano-Ag, nano-TiO2 and nano-ZnO are released into air, soils and surface water. Each European country (EU28, Norway and Switzerland) was studied from the year 2000 to the year 2020. The present model includes new assessments of the forms in which nano-ZnO is released into the environment and of the flows out of reprocessing (last step of recycling) of nano-Ag, nano-TiO2 and nano-ZnO towards both technical and environmental compartments. The forms of ZnO released to different compartments vary greatly with different proportions between pristine, dissolved, matrix-embedded and transformed forms. The same applies for the forms of the other ENMs released after reprocessing, where different processes result in very different distributions between the various forms. The country-specific assessment showed that it is mainly the different solid waste treatment schemes that influence the distribution to final environmental sinks. Overall, the results of IDPMFA show the great importance of considering the full life cycle of nanoproducts including the different stages of recycling, the differences between countries, and the forms of the released materials. The results from the integrated model will provide useful input information for environmental fate models and for environmental risk assessments.
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Affiliation(s)
- Véronique Adam
- Empa, Swiss Federal Laboratories for Materials Science and Technologies, Technology and Society Laboratory, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Qie Wu
- Empa, Swiss Federal Laboratories for Materials Science and Technologies, Technology and Society Laboratory, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Bernd Nowack
- Empa, Swiss Federal Laboratories for Materials Science and Technologies, Technology and Society Laboratory, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
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18
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Zheng Y, Nowack B. Size-Specific, Dynamic, Probabilistic Material Flow Analysis of Titanium Dioxide Releases into the Environment. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:2392-2402. [PMID: 33541069 DOI: 10.1021/acs.est.0c07446] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Most of the existing exposure models for engineered nanomaterials (ENMs) do not consider particle size, crystalline forms, and coating materials that all may influence the material's fate, transport, and toxicity. Our work aimed to incorporate particle size distributions into a material flow analysis (MFA) to develop a size-specific, dynamic, probabilistic MFA model (ss-DPMFA). Using titanium dioxide (TiO2) as a first case study, we aimed to determine the contribution of conventional TiO2 pigments to the total amount of nanoscale TiO2 released into the environment. Besides providing information on mass flows, the new model used particle size distributions and crystalline forms to describe the stocks and flows of TiO2. The most striking modeling result to emerge was that before TiO2 ENMs came onto the market as such in 2000, 22,400 tons of nanosized (<100 nm) TiO2 particles had already been released into the environment, originating from conventional TiO2 pigments. Even in 2016, 50% of the nanosized TiO2 particles released into wastewater came from the nanosized fraction of TiO2 particles in pigments. Quantitative data on the particle size distribution of TiO2 particles released into the environment can be used as input for environmental fate models. Our new ss-DPMFA model's additional insights about crystalline forms and coatings could pave the way for advanced size- and form-specific hazard and risk assessments for other nanomaterials in ecological systems.
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Affiliation(s)
- Yuanfang Zheng
- Empa, Swiss Federal Laboratories for Materials Science and Technologies, Technology and Society Lab, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Bernd Nowack
- Empa, Swiss Federal Laboratories for Materials Science and Technologies, Technology and Society Lab, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
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19
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Ahamed A, Liang L, Lee MY, Bobacka J, Lisak G. Too small to matter? Physicochemical transformation and toxicity of engineered nTiO 2, nSiO 2, nZnO, carbon nanotubes, and nAg. JOURNAL OF HAZARDOUS MATERIALS 2021; 404:124107. [PMID: 33035908 DOI: 10.1016/j.jhazmat.2020.124107] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/04/2020] [Accepted: 09/18/2020] [Indexed: 06/11/2023]
Abstract
Engineered nanomaterials (ENMs) refer to a relatively novel class of materials that are increasingly prevalent in various consumer products and industrial applications - most notably for their superlative physicochemical properties when compared with conventional materials. However, consumer products inevitably degrade over the course of their lifetime, releasing ENMs into the environment. These ENMs undergo physicochemical transformations and subsequently accumulate in the environment, possibly leading to various toxic effects. As a result, a significant number of studies have focused on identifying the possible transformations and environmental risks of ENMs, with the objective of ensuring a safe and responsible application of ENMs in consumer products. This review aims to consolidate the results from previous studies related to each stage of the pathway of ENMs from being embodied in a product to disintegration/transformation in the environment. The scope of this work was defined to include the five most prevalent ENMs based on recent projected production market data, namely: nTiO2, nSiO2, nZnO, carbon nanotubes, and nAg. The review focuses on: (i) models developed to estimate environmental concentrations of ENMs; (ii) the possible physicochemical transformations; (iii) cytotoxicity and genotoxicity effects specific to each ENM selected; and (iv) a discussion to identify potential gaps in the studies conducted and recommend areas where further investigation is warranted.
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Affiliation(s)
- Ashiq Ahamed
- Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore 637141 Singapore; Laboratory of Molecular Science and Engineering, Johan Gadolin Process Chemistry Centre, Åbo Akademi University, FI-20500 Turku/Åbo, Finland
| | - Lili Liang
- Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore 637141 Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798, Singapore; Interdisciplinary Graduate Program, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore 637141 Singapore
| | - Ming Yang Lee
- Asian School of the Environment, Nanyang Technological University, Singapore 639798, Singapore
| | - Johan Bobacka
- Laboratory of Molecular Science and Engineering, Johan Gadolin Process Chemistry Centre, Åbo Akademi University, FI-20500 Turku/Åbo, Finland
| | - Grzegorz Lisak
- Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore 637141 Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798, Singapore.
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20
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Li H, Li S, Cao X, Sun W. Comparing the effects of different types of inorganic nanoparticles on 17β-estradiol adsorption by graphene oxide. ENVIRONMENTAL RESEARCH 2020; 187:109656. [PMID: 32464447 DOI: 10.1016/j.envres.2020.109656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 05/10/2020] [Accepted: 05/10/2020] [Indexed: 06/11/2023]
Abstract
This study compared the effects of five types of inorganic nanoparticles (INPs) on the 17β-estradiol (E2) adsorption to graphene oxide (GO). The results showed that INPs increased the equilibrium time for the adsorption of E2 to GO. Higher Brunauer-Emmett-Teller (BET) surface area of INPs resulted in lower diffusion rate of E2, and thus the adsorption rate constant (k2) calculated from pseudo-second-order kinetic model negatively correlated with the BET surface area of INPs (p = 0.037). In addition, INPs decreased the adsorption amount of E2 to GO, and the inhibition effects declined in the order of Al2O3 > ZnO > TiO2 > SiO2 > Fe2O3. This is determined by the interactions between GO and INPs. The positively charged ZnO and Al2O3 strongly heteroaggregate with GO via electrostatic attraction, and then significantly inhibited E2 adsorption to GO. In contrast, the homoaggregation of GO was superior to its heteroaggregation with negatively charged SiO2 and TiO2, and then lower inhibition of E2 adsorption to GO was induced. Fe2O3 with less negative charge (-8.48 mV) led to the lowest inhibition effect on E2 adsorption to GO because of its preferable homoaggregation. The results were further confirmed by Derjaguin-Landau-Verwey-Overbeek calculation, transmission electron microscopy, and sedimentation experiments. This study revealed how the properties of INPs influence their effects on the adsorption of E2 by GO, and the findings are critical to understand the behavior and fate of GO and pollutants in natural aquatic environment.
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Affiliation(s)
- Huimin Li
- College of Environmental Sciences and Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, 100871, China
| | - Si Li
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Xiaoqiang Cao
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, China
| | - Weiling Sun
- College of Environmental Sciences and Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, 100871, China.
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21
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Hu C, Hou J, Zhu Y, Lin D. Multigenerational exposure to TiO 2 nanoparticles in soil stimulates stress resistance and longevity of survived C. elegans via activating insulin/IGF-like signaling. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114376. [PMID: 32203849 DOI: 10.1016/j.envpol.2020.114376] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/10/2020] [Accepted: 03/13/2020] [Indexed: 06/10/2023]
Abstract
With increasing release of nanoparticles (NPs) into the environment, soil organisms likely suffer from high dose and long duration of NPs contamination, while the effect of NPs across multiple generations in soil is rarely studied. Herein, we investigated how multigenerational exposure to different crystal forms (anatase, rutile, and their mixture) of TiO2 NPs (nTiO2) affected the survival, behavior, physiological and biochemical traits, and lifespan of nematodes (C. elegans) in a paddy soil. The soil property changed very slightly after being spiked with nTiO2, and the toxicities of three nTiO2 forms were largely comparable. The nTiO2 exposure adversely influenced the survival and locomotion of nematodes, and increased intracellular reactive oxygen species (ROS) generation. Interestingly, the toxic effect gradually attenuated and the lifespan of survived nematodes increased from the P0 to F3 generation, which was ascribed to the survivor selection and stimulatory effect. The lethal effect and the increased oxidative stress may continuously screen out offspring possessing stronger anti-stress capabilities. Moreover, key genes (daf-2, age-1, and skn-1) in the insulin/IGF-like signaling (IIS) pathway actively responded to the nTiO2 exposure, which further optimized the selective expression of downstream genes, increased the antioxidant enzyme activities and antioxidant contents, and thereby increased the stress resistance and longevity of survived nematodes across successive generations. Our findings highlight the crucial role of bio-responses in the progressively decreased toxicity of nTiO2, and add new knowledge on the long-term impact of soil nTiO2 contamination.
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Affiliation(s)
- Chao Hu
- Department of Environmental Science, Zhejiang University, Hangzhou, 310058, China
| | - Jie Hou
- Department of Environmental Science, Zhejiang University, Hangzhou, 310058, China
| | - Ya Zhu
- Department of Environmental Science, Zhejiang University, Hangzhou, 310058, China
| | - Daohui Lin
- Department of Environmental Science, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Zhejiang University, Hangzhou, 310058, China.
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22
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Rajkovic S, Bornhöft NA, van der Weijden R, Nowack B, Adam V. Dynamic probabilistic material flow analysis of engineered nanomaterials in European waste treatment systems. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 113:118-131. [PMID: 32531660 DOI: 10.1016/j.wasman.2020.05.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 04/07/2020] [Accepted: 05/22/2020] [Indexed: 06/11/2023]
Abstract
Knowledge on the material flows of engineered nanomaterials (ENMs) is crucial for assessing their environmental risks. Waste management processes constitute important parts of material flow analyses as they affect large fractions of the ENMs. Accordingly, their detailed representation could substantially improve the models. Our goal was to consider the temporal variations of wastewater and solid waste management in the dynamic probabilistic material flow analysis of carbon nanotubes (CNTs), nano-Ag, -TiO2 and -ZnO in Europe from 2000 to 2020. New input parameters included wastewater and solid waste management rates for each year. The uncertainties associated with these data were assessed based on the type of consulted source, the geographical representativeness and temporal concordance. Results show modal values of 10-27% of ENMs going from sorting to reprocessing. Large shares of environmental releases of nano-Ag and nano-ZnO end in surface water (4.9 t and 1700 t respectively in 2020), while sludge-treated soil as environmental compartment is receiving most of nano-TiO2 (22,000 t in 2020) and CNTs (8.8 t in 2020). Discharges from wastewater management to the subsurface soil make this compartment the largest environmental sink of nano-Ag and nano-ZnO (30 t and 3860 t accumulated in 2020, respectively). Landfills represent significant stocks of ENMs, with 105 t, 2077 t, 69,000 t and 1042 t of nano-Ag, nano-ZnO, nano-TiO2 and CNTs. This model includes detailed descriptions of waste management and sources of ENMs released at the European scale. However, a better understanding of the behaviour, i.e. fate and potential transformations of ENMs in reprocessing systems, is needed to complete the full assessment.
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Affiliation(s)
- Sana Rajkovic
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Switzerland; Wageningen University & Research, the Netherlands
| | | | | | - Bernd Nowack
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Switzerland.
| | - Véronique Adam
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Switzerland
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23
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Mulchandani A, Westerhoff P. Geospatial Climatic Factors Influence Water Production of Solar Desiccant Driven Atmospheric Water Capture Devices. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:8310-8322. [PMID: 32433870 DOI: 10.1021/acs.est.0c00534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Atmospheric water capture (AWC) can provide clean drinking water in locations not connected to the centralized water grid for disaster relief, rural, military, and other applications. The atmosphere contains 14% of the equivalent freshwater volume stored in lakes and rivers and is universally accessible without pipelines or dams. A growing number of solar-based materials and devices to capture water vapor off the electrical grid have been reported, all of which assume varying relative humidity, solar irradiance, and desiccant materials (e.g., silica gel, zeolite, metal organic frameworks). This work uses Monte Carlo simulations and geospatial mapping to integrate material and system parameters from literature with United States spatial and temporal climate data to pinpoint key driving parameters for solar desiccant driven AWC and forecast atmospheric water harvesting potential (L/m2/day). Solar irradiance provides energy to desorb water vapor adsorbed to desiccants and determines maximum AWC capacity with respect to location and season; 4-8 L/m2 system footprint/day can be captured across the United States in spring and summer, while capacity lowers to 0-5 L/m2/day in fall and winter. Desiccants can be designed with Langmuir specific surface area >1500 m2/g and Langmuir constant (kL) > 0.1 to adsorb water vapor and meet these maximum potentials.
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Affiliation(s)
- Anjali Mulchandani
- NSF Nanosystems Engineering Research Center on Nanotechnology Enabled Water Treatment; School of Sustainable Engineering and the Built Environment, Houston, Texas 77005, United States
| | - Paul Westerhoff
- NSF Nanosystems Engineering Research Center on Nanotechnology Enabled Water Treatment; School of Sustainable Engineering and the Built Environment, Houston, Texas 77005, United States
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24
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Bellani L, Siracusa G, Giorgetti L, Di Gregorio S, Ruffini Castiglione M, Spanò C, Muccifora S, Bottega S, Pini R, Tassi E. TiO 2 nanoparticles in a biosolid-amended soil and their implication in soil nutrients, microorganisms and Pisum sativum nutrition. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 190:110095. [PMID: 31869714 DOI: 10.1016/j.ecoenv.2019.110095] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 12/12/2019] [Accepted: 12/14/2019] [Indexed: 06/10/2023]
Abstract
The wide use of nanoparticles (NPs), gives concern about their possible negative implications in the environment and living organisms. In particular, titanium dioxide (TiO2) NPs are accumulated in biosolids (Bs) coming from wastewater treatment plants, which in turn are used as farm soil amendments and are becoming an important way of NPs entrance in the terrestrial ecosystems. In this study, to simulate a low and cumulative load of TiO2 NPs, 80 and 800 mg TiO2per Kg of soil were spiked in the Bs prior to its addition to soil. The effects of different crystal phases of TiO2 NPs (pure anatase and pure rutile or their mixture) and their non-coated bulk counterparts (larger particles) on the availability of mineral nutrients and on the status of the bacterial communities together with the nutritional status of Pisum sativum L. plants were evaluated. Results showed the reduction, to different extents, on the availability of important soil mineral nutrients (e.g. Mn 65%, Fe 20%, P 27%, averagely), in some cases size- (e.g. P) and dose-dependent. Bacterial biodiversity was also affected by the presence of high TiO2 dose in soil. The mineral nutrition of pea plants was also altered, showing the main reduction in Mn (80% in the roots and 50% in the shoots), K, Zn, P (respectively, 80, 40, and 35% in the roots), and an increase of N in the shoots, with possible consequences on the quality of the crop. The present study gives new integrated data on the effects of TiO2 NPs in the soil-plant system, on the soil health and on the nutritional quality of crops, rising new implications for future policies and human health.
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Affiliation(s)
- Lorenza Bellani
- Department of Life Sciences, University of Siena, Via A. Moro, 2, 53100, Siena, Italy; Institute of Agricultural Biology and Biotechnology, National Research Council (IBBA-CNR), Via G. Moruzzi, 1, 56124, Pisa, Italy
| | - Giovanna Siracusa
- Department of Biology, University of Pisa, Via L. Ghini, 13, 56126, Pisa, Italy
| | - Lucia Giorgetti
- Institute of Agricultural Biology and Biotechnology, National Research Council (IBBA-CNR), Via G. Moruzzi, 1, 56124, Pisa, Italy
| | - Simona Di Gregorio
- Department of Biology, University of Pisa, Via L. Ghini, 13, 56126, Pisa, Italy
| | | | - Carmelina Spanò
- Department of Biology, University of Pisa, Via L. Ghini, 13, 56126, Pisa, Italy
| | - Simonetta Muccifora
- Department of Life Sciences, University of Siena, Via A. Moro, 2, 53100, Siena, Italy
| | - Stefania Bottega
- Department of Biology, University of Pisa, Via L. Ghini, 13, 56126, Pisa, Italy
| | - Roberto Pini
- Research Institute on Terrestrial Ecosystems (IRET-CNR), Via G. Moruzzi, 1, 56124, Pisa, Italy
| | - Eliana Tassi
- Research Institute on Terrestrial Ecosystems (IRET-CNR), Via G. Moruzzi, 1, 56124, Pisa, Italy.
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25
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Loosli F, Yi Z, Wang J, Baalousha M. Improved extraction efficiency of natural nanomaterials in soils to facilitate their characterization using a multimethod approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 677:34-46. [PMID: 31051381 DOI: 10.1016/j.scitotenv.2019.04.301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 04/19/2019] [Accepted: 04/20/2019] [Indexed: 06/09/2023]
Abstract
Characterization of natural nanomaterial (NNM) physicochemical properties - such as size, size distribution, elemental composition and elemental ratios - is often hindered by lack of methods to disperse NNMs from environmental samples. This study evaluates the effect of extractant composition, pH, and ionic strength on soil NNM extraction in term of recovery and release of primary particles/small aggregate sizes (i.e., <200 nm). The extracted NNMs were characterized for hydrodynamic diameter and zeta potential by dynamic light scattering and laser Doppler electrophoresis, natural organic matter desorption by UV-Vis spectroscopy, element composition by inductively coupled plasma-mass spectroscopy (ICP-MS), size based elemental distribution by field flow fractionation coupled to ICP-MS, and morphology by transmission electron microscopy. The extracted NNM concentrations increased following the order of NaOH ≤ Na2CO3 < Na2C2O4 < Na4P2O7. Na4P2O7 was the most efficient extractant and results in 2-12 folds higher NNM extraction than other extractants. The Na4P2O7 extracted NNMs exhibited narrower size distribution with smaller modal size relative to NaOH, Na2CO3, Na2C2O4 extracted NNMs. Thus, Na4P2O7 enhances the extraction of primary NNMs and/or smaller NNM aggregates (i.e., size <200 nm). Na4P2O7 promote soil microaggregates breakup and release of NNMs by reducing free multivalent cation concentration in soil pore water by forming metal-phosphate complexes and by enhancing NNM surface charge via phosphate sorption on NNM surfaces. Additionally, the extracted NNM concentrations increased with the increase in extractant concentration and pH, except at 100 mM where the high ionic strength might have induced NNM aggregation. The improved NNM-extraction will improve the overall understanding of the physicochemical properties of NNMs in environmental systems. This study presents the key properties of NNMs that can be used as background information to differentiate engineered nanomaterials (ENMs) from NNMs in complex environmental media.
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Affiliation(s)
- Frédéric Loosli
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, SC 29208, USA; Centre for Microbiology and Environmental Systems Science, University of Vienna, 1090 Vienna, Austria.
| | - Zebang Yi
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, SC 29208, USA; College of Earth Science, Guilin University of Technology, Guilin 541004, China
| | - Jingjing Wang
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, SC 29208, USA
| | - Mohammed Baalousha
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, SC 29208, USA.
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26
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Ding R, Li L, Yang P, Luo L, Li L, Wang Q. Assessing the environmental occurrence and risk of nano-silver in Hunan, China using probabilistic material flow modeling. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 658:1249-1255. [PMID: 30677987 DOI: 10.1016/j.scitotenv.2018.12.254] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 12/16/2018] [Accepted: 12/16/2018] [Indexed: 06/09/2023]
Abstract
Using a probabilistic material flow analysis model, we investigate the mass balance and occurrence of nano-silver in the environment of Hunan, renowned as "the home to non-ferrous metals" in China. The model builds on China-specific production and environmental information and incorporates sulfidation of nano-silver in urban wastewater treatment systems. We predict that the bulk of nano-silver (>90%), primarily originating from production and consumption of nano-silver products, ends up in sewage treatment plants (STPs, 5.3t/a), followed by the landfill (4.7t/a). More than 99% of nano-silver in STPs reacts with sulfide and thus does not appear in effluents. Direct release of nano-silver from production and consumption is identified as the dominant source of nano-silver in the environment, most of which enters surface water (0.71t/a). As such, regulation of direct emissions from production and consumption of nano-silver products can be of priority for local environmental management. The modeled regional concentrations (modes) of nano-silver are 0.9ng/L in surface water, 20ng/kg in soil, 6.9μg/kg in sediment, and negligible in the air, which agree well with measurements in the modeled region. Based on the modeled concentrations, we calculate that the risk characterization ratio is <1 in the air, surface water and soil, which means that nano-silver currently poses no risk to organisms living in these environmental compartments.
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Affiliation(s)
- Ru Ding
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, Hunan, China
| | - Li Li
- Department of Physical & Environmental Sciences, University of Toronto at Scarborough, Toronto, Ontario M1C 1A4, Canada
| | - Pingjian Yang
- CRRC Environmental Science & Technology Co. Ltd, Beijing, China
| | - Li Luo
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, Hunan, China
| | - Lei Li
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, Hunan, China
| | - Qiang Wang
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, Hunan, China.
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27
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Wigger H, Nowack B. Material-specific properties applied to an environmental risk assessment of engineered nanomaterials - implications on grouping and read-across concepts. Nanotoxicology 2019; 13:623-643. [PMID: 30727799 DOI: 10.1080/17435390.2019.1568604] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Engineered nanomaterials (ENMs) are intentionally designed in different nano-forms of the same parent material in order to meet application requirements. Different grouping and read-across concepts are proposed to streamline risk assessments by pooling nano-forms in one category. Environmental grouping concepts still are in their infancy and mainly focus on grouping by hazard categories. Complete risk assessments require data on environmental release and exposure not only for ENMs but also for their nano-forms. The key requirement is to identify and to distinguish the production volumes of the ENMs regarding nano-form-specific applications. The aim of our work was to evaluate whether such a grouping is possible with the available data and which influence it has on the environmental risk assessment of ENMs. A functionality-driven approach was applied to match the material-specific property (i.e. crystal form/morphology) with the functions employed in the applications. We demonstrate that for nano-TiO2, carbon nanotubes (CNTs), and nano-Al2O3 the total production volume can be allocated to specific nano-forms based on their functionalities. The differentiated assessments result in a variation of the predicted environmental concentrations for anatase vs. rutile nano-TiO2, single-wall vs. multi-wall CNTs and α- vs. γ-nano-Al2O3 by a factor of 2 to 13. Additionally, the nano-form-specific predicted no-effect concentrations for these ENMs were derived. The risk quotients for all nano-forms indicated no immediate risk in freshwaters. Our results suggest that grouping and read-across concepts should include both a nano-form release potential for estimating the environmental exposure and separately consider the nano-forms in environmental risk assessments.
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Affiliation(s)
- Henning Wigger
- a Empa - Swiss Federal Laboratories for Material Science and Technology, Technology and Society Laboratory , St. Gallen , Switzerland
| | - Bernd Nowack
- a Empa - Swiss Federal Laboratories for Material Science and Technology, Technology and Society Laboratory , St. Gallen , Switzerland
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28
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Dippon U, Pabst S, Klitzke S. Colloidal stabilization of CeO 2 nanomaterials with polyacrylic acid, polyvinyl alcohol or natural organic matter. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 645:1153-1158. [PMID: 30248840 DOI: 10.1016/j.scitotenv.2018.07.189] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 07/04/2018] [Accepted: 07/14/2018] [Indexed: 06/08/2023]
Abstract
Engineered nanomaterials (ENM) such as nano-sized cerium dioxide (CeO2) are increasingly applied. Meanwhile, concerns on their environmental fate are rising. Understanding the fate of ENM within and between environmental compartments such as surface water and groundwater is crucial for the protection of drinking water resources. Therefore, the colloidal stability of CeO2 ENM (2 mg L-1) was assessed with various surface coatings featuring different physico-chemical properties such as weakly anionic polyvinyl alcohol (PVA), strongly anionic polyacrylic acid (PAA) or complex natural organic matter (NOM) at various water compositions in batch experiments (pH 2-12, ionic strength 0-5 mM KCl or CaCl2). While uncoated CeO2 ENM aggregate in the range of pH 4-8 in 1 mM KCl solution, the results show that PAA, PVA and NOM surface coatings stabilize CeO2-ENM at neutral and alkaline pH in 1 mM KCl solution. Stabilization by PAA and NOM is associated with strongly negative zeta potentials below -20 mV, suggesting electrostatic repulsion as stabilization mechanism. No aggregation was detected up to 5 mM KCl for PAA- and NOM-coated CeO2 ENM. In contrast, CaCl2 induced aggregation at >2.2 mM CaCl2 for PAA and NOM-coated CeO2 ENM respectively. PVA-coated ENM showed zeta potentials of -15 mV to -5 mV in the presence of 0-5 mM ionic strength, suggesting steric effects as stabilization mechanism. The hydrodynamic diameter of PVA-coated ENM was larger compared to PAA and NOM at low ionic strength, but the size did not increase with ionic strength of the suspensions. The effect of ionic strength and counter ion valency (pH 7) on the colloidal stability of ENM depends on the prevailing stabilization mechanism of the organic coating. NOM can be similarly effective in colloidal stabilization of CeO2-ENM as PAA. Our results suggest natural Ca-rich waters will lead to ENM agglomeration even of coated CeO2-ENM.
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Affiliation(s)
- Urs Dippon
- German Environment Agency, section drinking water treatment and water resource protection, Schichauweg 58, 12307 Berlin, Germany.
| | - Silke Pabst
- German Environment Agency, section drinking water treatment and water resource protection, Schichauweg 58, 12307 Berlin, Germany
| | - Sondra Klitzke
- German Environment Agency, section drinking water treatment and water resource protection, Schichauweg 58, 12307 Berlin, Germany.
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29
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Wang X, Adeleye AS, Wang H, Zhang M, Liu M, Wang Y, Li Y, Keller AA. Interactions between polybrominated diphenyl ethers (PBDEs) and TiO 2 nanoparticle in artificial and natural waters. WATER RESEARCH 2018; 146:98-108. [PMID: 30236469 DOI: 10.1016/j.watres.2018.09.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 09/02/2018] [Accepted: 09/05/2018] [Indexed: 06/08/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are widely used as flame retardants in a variety of products, including textiles. PBDEs are thus exposed to the natural environment, including wastewater, waterbodies and sediments (at different phases of products' lifecycles), where they will interact with other pollutants. Studies on the interactions between organic pollutants and engineered nanoparticles (NPs) in natural waters are rare. In this study, we investigated the effects of two common PBDEs-BDE 47 and BDE 209-on the physicochemical properties and colloidal stability of TiO2 NP in simple aqueous media and two natural waters (river water and wastewater). Upon the addition of BDE 47 and BDE 209, the zeta (ζ) potential of TiO2 NP increased in magnitude in artificial waters and in natural waters (river water and wastewater), but the magnitude of influence on the NP's surface charge was specific to each natural water considered. Despite the presence of high content of natural organic matter in river water (DOC = 15.8 mg/L) and wastewater (DOC = 26.1 mg/L), low levels of the PBDEs (e.g. 0.5 mg/L) strongly impacted the surface charge and hydrodynamic diameter of TiO2 NP. Both PBDE congeners suppressed the agglomeration of TiO2 NP in the presence of monovalent and divalent cations, and in both natural waters. BDE 47 exhibited a stronger influence than BDE 209 on the surface charge, hydrodynamic diameter, and agglomeration of TiO2 NP in both artificial and natural waters. As such, the interactions between TiO2 NP and the PBDEs can increase the exposure of aquatic organisms to both pollutants. Infrared spectroscopy showed the importance of the aromatic ether groups in the adsorption of PBDEs to TiO2 NP.
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Affiliation(s)
- Xinzhe Wang
- College of Environmental Science and Engineering/Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tong Yan Road 38, Tianjin 300350, China
| | - Adeyemi S Adeleye
- Bren School of Environmental Science and Management, University of California Santa Barbara, Santa Barbara, CA 93106, United States
| | - Huihui Wang
- College of Environmental Science and Engineering/Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tong Yan Road 38, Tianjin 300350, China
| | - Min Zhang
- College of Environmental Science and Engineering/Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tong Yan Road 38, Tianjin 300350, China
| | - Mengmeng Liu
- College of Environmental Science and Engineering/Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tong Yan Road 38, Tianjin 300350, China
| | - Yingying Wang
- College of Environmental Science and Engineering/Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tong Yan Road 38, Tianjin 300350, China
| | - Yao Li
- College of Environmental Science and Engineering/Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tong Yan Road 38, Tianjin 300350, China.
| | - Arturo A Keller
- Bren School of Environmental Science and Management, University of California Santa Barbara, Santa Barbara, CA 93106, United States.
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30
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Adam V, Caballero-Guzman A, Nowack B. Considering the forms of released engineered nanomaterials in probabilistic material flow analysis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:17-27. [PMID: 30170204 DOI: 10.1016/j.envpol.2018.07.108] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/10/2018] [Accepted: 07/23/2018] [Indexed: 06/08/2023]
Abstract
Most existing models for assessing the releases of engineered nanomaterials (ENMs) into the environment are based on the assumption that ENMs remain in their pristine forms during their whole life cycle. It is known, however, that this is not always the case as ENMs are often embedded into solid matrices during manufacturing and can undergo physical or chemical transformations during their life cycle, e.g. upon release to wastewater. In this work, we present a method for systematically assessing the forms in which nano-Ag and nano-TiO2 flow through their life cycle (i.e. production, manufacturing, use and disposal) to their points of release to air, soil and surface water. Input data on the forms of released ENMs were probability distributions based on peer-reviewed literature. Release data were incorporated into a probabilistic material flow analysis model to quantify the proportions of ENMs in product-embedded, matrix-embedded, pristine, transformed and dissolved forms in all technical and environmental compartments into which they flow, at the European scale. Releases of nano-Ag to surface water and soil were modelled to occur primarily in transformed forms (Q25 and Q75 of 34-58% and 78-86%, respectively, with means of 53% and 82%), while releases to air were mostly in pristine and matrix-embedded forms (38-46% and 36-44%, respectively, with means of 42% and 40%). In contrast, nano-TiO2 releases to air, soil and water were estimated to be predominantly in pristine form (75-85%, 90-95%, 96-98%, respectively, with means of 80%, 91% and 97%). The distributions of ENM releases between forms developed here will improve the representativeness and appropriateness of input data for environmental fate modelling and risk assessment of ENMs.
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Affiliation(s)
- Véronique Adam
- EMPA, Swiss Federal Laboratories for Materials Science and Technology, Technology and Society Laboratory, Lerchenfeldstrasse 5, CH-9014, St. Gallen, Switzerland
| | - Alejandro Caballero-Guzman
- EMPA, Swiss Federal Laboratories for Materials Science and Technology, Technology and Society Laboratory, Lerchenfeldstrasse 5, CH-9014, St. Gallen, Switzerland
| | - Bernd Nowack
- EMPA, Swiss Federal Laboratories for Materials Science and Technology, Technology and Society Laboratory, Lerchenfeldstrasse 5, CH-9014, St. Gallen, Switzerland.
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Part F, Berge N, Baran P, Stringfellow A, Sun W, Bartelt-Hunt S, Mitrano D, Li L, Hennebert P, Quicker P, Bolyard SC, Huber-Humer M. A review of the fate of engineered nanomaterials in municipal solid waste streams. WASTE MANAGEMENT (NEW YORK, N.Y.) 2018; 75:427-449. [PMID: 29477652 DOI: 10.1016/j.wasman.2018.02.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 01/15/2018] [Accepted: 02/06/2018] [Indexed: 05/16/2023]
Abstract
Significant knowledge and data gaps associated with the fate of product-embedded engineered nanomaterials (ENMs) in waste management processes exist that limit our current ability to develop appropriate end-of-life management strategies. This review paper was developed as part of the activities of the IWWG ENMs in Waste Task Group. The specific objectives of this review paper are to assess the current knowledge associated with the fate of ENMs in commonly used waste management processes, including key processes and mechanisms associated with ENM fate and transport in each waste management process, and to use that information to identify the data gaps and research needs in this area. Literature associated with the fate of ENMs in wastes was reviewed and summarized. Overall, results from this literature review indicate a need for continued research in this area. No work has been conducted to quantify ENMs present in discarded materials and an understanding of ENM release from consumer products under conditions representative of those found in relevant waste management process is needed. Results also indicate that significant knowledge gaps associated with ENM behaviour exist for each waste management process investigated. There is a need for additional research investigating the fate of different types of ENMs at larger concentration ranges with different surface chemistries. Understanding how changes in treatment process operation may influence ENM fate is also needed. A series of specific research questions associated with the fate of ENMs during the management of ENM-containing wastes have been identified and used to direct future research in this area.
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Affiliation(s)
- Florian Part
- Department of Water-Atmosphere-Environment, Institute of Waste Management, University of Natural Resources and Life Sciences, Muthgasse 107, 1190 Vienna, Austria
| | - Nicole Berge
- Department of Civil and Environmental Engineering, University of South Carolina, 300 Main Street, Columbia, SC 29208, United States.
| | - Paweł Baran
- Unit of Technologies of Fuels, RWTH Aachen University, Wüllnerstraße 2, 52062 Aachen, Germany
| | - Anne Stringfellow
- Faculty of Engineering and the Environment, University of Southampton, SO17 1BJ, Southampton, England, United Kingdom
| | - Wenjie Sun
- Department of Civil and Environmental Engineering, Southern Methodist University, 3101 Dyer Street, Dallas, TX 75205, United States
| | - Shannon Bartelt-Hunt
- Department of Civil Engineering, University of Nebraska-Lincoln, 1110 S. 67th St., Omaha, NE 68182-0178, United States
| | - Denise Mitrano
- Process Engineering, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - Liang Li
- Department of Civil and Environmental Engineering, University of South Carolina, 300 Main Street, Columbia, SC 29208, United States
| | - Pierre Hennebert
- National Institute for Industrial and Environmental Risk Assessment (INERIS), BP 33, 13545 Aix-en-Provence Cedex 4, France
| | - Peter Quicker
- Unit of Technologies of Fuels, RWTH Aachen University, Wüllnerstraße 2, 52062 Aachen, Germany
| | - Stephanie C Bolyard
- Environmental Research & Education Foundation, 3301 Benson Drive, Suite 101, Raleigh, NC 27609, United States
| | - Marion Huber-Humer
- Department of Water-Atmosphere-Environment, Institute of Waste Management, University of Natural Resources and Life Sciences, Muthgasse 107, 1190 Vienna, Austria
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Wang D, Jin Y, Park CM, Heo J, Bai X, Aich N, Su C. Modeling the Transport of the "New-Horizon" Reduced Graphene Oxide-Metal Oxide Nanohybrids in Water-Saturated Porous Media. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:4610-4622. [PMID: 29582656 PMCID: PMC6818097 DOI: 10.1021/acs.est.7b06488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Little is known about the fate and transport of the "new-horizon" multifunctional nanohybrids in the environment. Saturated sand-packed column experiments ( n = 66) were therefore performed to investigate the transport and retention of reduced graphene oxide (RGO)-metal oxide (Fe3O4, TiO2, and ZnO) nanohybrids under environmentally relevant conditions (mono- and divalent electrolytes and natural organic matter). Classical colloid science principles (Derjaguin-Landau-Verwey-Overbeek (DLVO) theory and colloid filtration theory (CFT)) and mathematical models based on the one-dimensional convection-dispersion equation were employed to describe and predict the mobility of RGO-Fe3O4, RGO-TiO2, and RGO-ZnO nanohybrids in porous media. Results indicate that the mobility of the three nanohybrids under varying experimental conditions is overall explainable by DLVO theory and CFT. Numerical simulations suggest that the one-site kinetic retention model (OSKRM) considering both time- and depth-dependent retention accurately approximated the breakthrough curves (BTCs) and retention profiles (RPs) of the nanohybrids concurrently; whereas, others (e.g., two-site retention model) failed to capture the BTCs and/or RPs. This is primarily because blocking BTCs and exponential/hyperexponential/uniform RPs occurred, which is within the framework of OSKRM featuring time- (for kinetic Langmuirian blocking) and depth-dependent (for exponential/hyperexponential/uniform) retention kinetics. Employing fitted parameters (maximum solid-phase retention capacity: Smax = 0.0406-3.06 cm3/g; and first-order attachment rate coefficient: ka = 0.133-20.6 min-1) extracted from the OSKRM and environmentally representative physical variables (flow velocity (0.00441-4.41 cm/min), porosity (0.24-0.54), and grain size (210-810 μm)) as initial input conditions, the long-distance transport scenarios (in 500 cm long sand columns) of the three nanohybrids were predicted via forward simulation. Our findings address the existing knowledge gap regarding the impact of physicochemical factors on the transport of the next-generation, multifunctional RGO-metal oxide nanohybrids in the subsurface.
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Affiliation(s)
- Dengjun Wang
- National Research Council, National Risk Management Research Laboratory, Office of Research and Development, United States Environmental Protection Agency, Ada, Oklahoma 74820, United States
| | - Yan Jin
- Department of Plant and Soil Sciences, University of Delaware, Newark, Delaware 19716, United States
| | - Chang Min Park
- Department of Environmental Engineering, Kyungpook National University, Buk-gu, Daegu 41566, South Korea
| | - Jiyong Heo
- Department of Civil and Environmental Engineering, Korea Army Academy, Young-Cheon, Gyeongbuk 38900, South Korea
| | - Xue Bai
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, Jiangsu Province, China
| | - Nirupam Aich
- Department of Civil, Structural, and Environmental Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Chunming Su
- Groundwater, Watershed, and Ecosystem Restoration Division, National Risk Management Research Laboratory, Office of Research and Development, United States Environmental Protection Agency, Ada, Oklahoma 74820, United States
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Suzuki S, Part F, Matsufuji Y, Huber-Humer M. Modeling the fate and end-of-life phase of engineered nanomaterials in the Japanese construction sector. WASTE MANAGEMENT (NEW YORK, N.Y.) 2018; 72:389-398. [PMID: 29196056 DOI: 10.1016/j.wasman.2017.11.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 10/30/2017] [Accepted: 11/22/2017] [Indexed: 06/07/2023]
Abstract
To date construction materials that contain engineered nanomaterials (ENMs) are available at the markets, but at the same time very little is known about their environmental fate. Therefore, this study aimed at modeling the potential fate of ENMs by using the example of the Japanese construction sector and by conducting a dynamic material flow analysis. Expert interviews and national reports revealed that about 3920-4660 tons of ENMs are annually used for construction materials in Japan. Nanoscale TiO2, SiO2, Al2O3 and carbon black have already been applied for decades to wall paints, road markings or concrete. The dynamic material flow model indicates that in 2016 about 95% of ENMs, which have been used since their year of market penetration, remained in buildings, whereas only 5% ended up in the Japanese waste management system or were diffusely released into the environment. Considering the current Japanese waste management system, ENMs were predicted to end up in recycled materials (40-47%) or in landfills (36-41%). It was estimated that only a small proportion was used in agriculture (5-7%, as ENM-containing sewage sludges) or was diffusely released into soils, surface waters or the atmosphere (5-19%). The results indicate that ENM release predominantly depend on their specific applications and characteristics. The model also highlights the importance of adequate collection and treatment of ENM-containing wastes. In future, similar dynamic flow models for other countries should consider, inasmuch as available, historical data on ENM production (e.g. like declaration reports that are annually published by relevant public authorities or associations), as such input data is very important regarding data reliability in order to decrease uncertainties and to continuously improve model accuracy. In addition, more environmental monitoring studies that aim at the quantification of ENM release and inadvertent transfer, particularly triggered by waste treatment processes, would be needed in order to validate such models.
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Affiliation(s)
- Shinya Suzuki
- Department of Civil Engineering, Faculty of Engineering, Fukuoka University, 8-19-1, Nanakuma, Johnan-ku, Fukuoka 814-0180, Japan
| | - Florian Part
- Department of Water - Atmosphere - Environment, Institute of Waste Management, University of Natural Resources and Life Sciences, Muthgasse 107, A-1190 Vienna, Austria; Department of Nanobiotechnology, Institute for Synthetic Bioarchitectures, University of Natural Resources and Life Sciences, Muthgasse 11, 1190 Vienna, Austria.
| | - Yasushi Matsufuji
- Department of Civil Engineering, Faculty of Engineering, Fukuoka University, 8-19-1, Nanakuma, Johnan-ku, Fukuoka 814-0180, Japan
| | - Marion Huber-Humer
- Department of Water - Atmosphere - Environment, Institute of Waste Management, University of Natural Resources and Life Sciences, Muthgasse 107, A-1190 Vienna, Austria
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Giese B, Klaessig F, Park B, Kaegi R, Steinfeldt M, Wigger H, von Gleich A, Gottschalk F. Risks, Release and Concentrations of Engineered Nanomaterial in the Environment. Sci Rep 2018; 8:1565. [PMID: 29371617 PMCID: PMC5785520 DOI: 10.1038/s41598-018-19275-4] [Citation(s) in RCA: 170] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 12/27/2017] [Indexed: 01/16/2023] Open
Abstract
For frequently used engineered nanomaterials (ENMs) CeO2-, SiO2-, and Ag, past, current, and future use and environmental release are investigated. Considering an extended period (1950 to 2050), we assess ENMs released through commercial activity as well as found in natural and technical settings. Temporal dynamics, including shifts in release due to ENM product application, stock (delayed use), and subsequent end-of-life product treatment were taken into account. We distinguish predicted concentrations originating in ENM use phase and those originating from end-of-life release. Furthermore, we compare Ag- and CeO2-ENM predictions with existing measurements. The correlations and limitations of the model, and the analytic validity of our approach are discussed in the context of massive use of assumptive model data and high uncertainty on the colloidal material captured by the measurements. Predictions for freshwater CeO2-ENMs range from 1 pg/l (2017) to a few hundred ng/l (2050). Relative to CeO2, the SiO2-ENMs estimates are approximately 1,000 times higher, and those for Ag-ENMs 10 times lower. For most environmental compartments, ENM pose relatively low risk; however, organisms residing near ENM 'point sources' (e.g., production plant outfalls and waste treatment plants), which are not considered in the present work, may be at increased risk.
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Affiliation(s)
- Bernd Giese
- University of Bremen, Faculty of Production Engineering, Department of Technology Design and Technology Development, Badgasteiner Str, 1 28359, Bremen, Germany
- University of Natural Resources and Life Sciences, Institute of Safety and Risk Sciences, Borkowskigasse 4, 1190, Vienna, Austria
| | - Fred Klaessig
- Pennsylvania Bio Nano Systems, Doylestown, Pennsylvania, 18901, United States
- Center for Environmental Implications of Nanotechnology (UC CEIN), University of California Santa Barbara, Santa Barbara, California, 93106-5131, United States
| | | | - Ralf Kaegi
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600, Dübendorf, Switzerland
| | - Michael Steinfeldt
- University of Bremen, Faculty of Production Engineering, Department of Technology Design and Technology Development, Badgasteiner Str, 1 28359, Bremen, Germany
| | - Henning Wigger
- University of Bremen, Faculty of Production Engineering, Department of Technology Design and Technology Development, Badgasteiner Str, 1 28359, Bremen, Germany
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014, St. Gallen, Switzerland
| | - Arnim von Gleich
- University of Bremen, Faculty of Production Engineering, Department of Technology Design and Technology Development, Badgasteiner Str, 1 28359, Bremen, Germany
| | - Fadri Gottschalk
- ETSS AG, Engineering, technical and scientific services, CH-7558, Strada, Switzerland.
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He X, Fu P, Aker WG, Hwang HM. Toxicity of engineered nanomaterials mediated by nano-bio-eco interactions. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART C, ENVIRONMENTAL CARCINOGENESIS & ECOTOXICOLOGY REVIEWS 2018; 36:21-42. [PMID: 29297743 DOI: 10.1080/10590501.2017.1418793] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Engineered nanomaterials may adversely impact human health and environmental safety by nano-bio-eco interactions not fully understood. Their interaction with biotic and abiotic environments are varied and complicated, ranging from individual species to entire ecosystems. Their behavior, transport, fate, and toxicological profiles in these interactions, addressed in a pioneering study, are subsequently seldom reported. Biological, chemical, and physical dimension properties, the so-called multidimensional characterization, determine interactions. Intermediate species generated in the dynamic process of nanomaterial transformation increase the complexity of assessing nanotoxicity. We review recent progress in understanding these interactions, discuss the challenges of the study, and suggest future research directions.
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Affiliation(s)
- Xiaojia He
- a Department of Marine Sciences , The University of Georgia , Athens , GA , USA
| | - Peter Fu
- b National Center for Toxicological Research , U.S. Food and Drug Administration , Jefferson , AR , USA
| | - Winfred G Aker
- c Department of Biology , Jackson State University , Jackson , MS , USA
| | - Huey-Min Hwang
- c Department of Biology , Jackson State University , Jackson , MS , USA
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