Environmental Chemistry and Ecotoxicology最新文献

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Simultaneous analysis of sixteen energetic nitro compounds and their degradation products in groundwaters and surface waters by ultra-high-performance liquid chromatography 超高效液相色谱法同时分析地下水和地表水中16种含能硝基化合物及其降解产物
IF 9
Environmental Chemistry and Ecotoxicology Pub Date : 2025-01-01 DOI: 10.1016/j.enceco.2025.04.002
Alen Albreht , Anja Koroša
{"title":"Simultaneous analysis of sixteen energetic nitro compounds and their degradation products in groundwaters and surface waters by ultra-high-performance liquid chromatography","authors":"Alen Albreht ,&nbsp;Anja Koroša","doi":"10.1016/j.enceco.2025.04.002","DOIUrl":"10.1016/j.enceco.2025.04.002","url":null,"abstract":"<div><div>An analytical method based on ultra-high-performance liquid chromatography with photodiode array detection for the simultaneous separation and determination of nitroaromatics, nitramines, and nitrate esters in aqueous environmental samples was developed. The modification of a preconcentration step based on solid phase extraction proved crucial for avoiding the frequently occurring measurement bias. The fully validated method has a range spanning four orders of magnitude and enables a precise, accurate, and sensitive determination of species down to a concentration of 0.3 μg/L. The method's applicability was demonstrated by quantifying energetic materials and their degradation products in nine groundwater and nine surface water samples, obtained from a single sampling campaign of Slovenian aquifers. Three contaminants, namely 1,3-dinitrobenzene (1,3-DNB), 2-amino-2,6-dinitrotoluene (2A-DNT), or pentaerythritol tetranitrate (PETN), were detected in 5 of the 18 samples. The measured concentrations of nitro compounds were low, with the exception of the Mura River, where PETN exceeded 1 μg/L. The anthropogenic origin of the pollution observed for this part of Europe must be linked to the (un)exploded ordnance from both World Wars. However, the presence of 1,3-DNB and 2A-DNT in the Pivka River is also likely to be associated with regular military activities in the area.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 753-761"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143843556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CdS nanoparticles may disrupt nitrogen and carbon metabolism in spinach (Spinacia oleracea L.) through different exposure pathways CdS纳米颗粒可能通过不同的暴露途径破坏菠菜(Spinacia oleracea L.)的氮和碳代谢
IF 9
Environmental Chemistry and Ecotoxicology Pub Date : 2025-01-01 DOI: 10.1016/j.enceco.2025.04.003
Hameed Ullah , Zheng Wang , Weihan Xu , Wenjing Wang , Yanqing Sheng
{"title":"CdS nanoparticles may disrupt nitrogen and carbon metabolism in spinach (Spinacia oleracea L.) through different exposure pathways","authors":"Hameed Ullah ,&nbsp;Zheng Wang ,&nbsp;Weihan Xu ,&nbsp;Wenjing Wang ,&nbsp;Yanqing Sheng","doi":"10.1016/j.enceco.2025.04.003","DOIUrl":"10.1016/j.enceco.2025.04.003","url":null,"abstract":"<div><div>Cadmium (Cd) contamination is a significant global environmental issue due to its toxic effects on plant and human health. However, the specific impacts of cadmium sulfide nanoparticles (CdS NPs) on plants, including the underlying molecular mechanisms, toxicity, uptake, and accumulation, remain poorly understood. This study explored the influence of CdS NPs on spinach plants by combining phenotypic and metabolomics analyses. Spinach plants were exposed to CdS NPs (0.005, 0.01, 0.2, 0.4, and 1 mg/L) and Cd ions (0.1 mg/L) through foliar and root for three weeks. Results indicated that root exposure had a more pronounced impact on biomass, plant height, leaf structure, and chlorophyll content than foliar exposure. Cd and CdS NPs uptake in root and shoot were confirmed through Inductively Coupled Plasma Mass Spectrometry (ICP-MS), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and Energy-Dispersive X-ray Spectroscopy (EDS), respectively and/or jointly. Metabolomics analysis revealed that CdS NPs altered nitrogen metabolism, carbon metabolism, tyrosine metabolism, and isoquinoline alkaloid biosynthesis, which are crucial for plant growth, development, and survival. These findings enhance comprehension of the intrinsic phenotypic and metabolic alterations induced by CdS NPs in spinach plants.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 741-752"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143826473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pollution and health risk assessment of heavy metals in surface water of the industrial region in Gazipur, Bangladesh 孟加拉国加齐浦尔工业区地表水重金属污染和健康风险评估
IF 9
Environmental Chemistry and Ecotoxicology Pub Date : 2025-01-01 DOI: 10.1016/j.enceco.2025.02.014
Nur-E-Jannat Preonty , Md. Nahid Hassan , A.H.M. Selim Reza , Md. Ishtiak Ahmed Rasel , Md. Mahibi Alom Mahim , Mst. Fetama Tuj Jannat
{"title":"Pollution and health risk assessment of heavy metals in surface water of the industrial region in Gazipur, Bangladesh","authors":"Nur-E-Jannat Preonty ,&nbsp;Md. Nahid Hassan ,&nbsp;A.H.M. Selim Reza ,&nbsp;Md. Ishtiak Ahmed Rasel ,&nbsp;Md. Mahibi Alom Mahim ,&nbsp;Mst. Fetama Tuj Jannat","doi":"10.1016/j.enceco.2025.02.014","DOIUrl":"10.1016/j.enceco.2025.02.014","url":null,"abstract":"<div><div>Heavy metal contamination in surface water poses significant health and environmental risks, especially in industrial regions. This study evaluates heavy metal pollution and associated health hazards in the Basan Industrial Area, Gazipur, Bangladesh. A total of 30 surface water samples were analyzed for cadmium (Cd), lead (Pb), nickel (Ni), chromium (Cr), zinc (Zn), manganese (Mn), copper (Cu), and iron (Fe). Pollution indices, including the Heavy Metal Pollution Index (HPI), Heavy Metal Evaluation Index (HEI), and Degree of Contamination (Cd), classified the water as severely polluted, with Cd, Pb, Ni, and Cr exceeding WHO standards. Health risk assessments show that children face greater non-carcinogenic and carcinogenic risks than adults, with ingestion being the primary exposure route. Health risk assessments revealed that both carcinogenic and non-carcinogenic risks are significant, with children being more vulnerable than adults. The total hazard quotient (HQ) for ingestion exceeded the safe limit, particularly for Cd (2.16–6.89), Cr (2.59–4.48), and Pb (0.37–13.98) in children. Dermal exposure risks were lower, but still exceeded safety thresholds for children in several locations. The total hazard quotient values for ingestion exceeded the safe threshold, particularly for Cd, Cr, and Pb, posing serious risks such as kidney damage, neurological disorders, and increased cancer probability. Health risk assessments revealed that both carcinogenic and non-carcinogenic risks are significant, with children being more vulnerable than adults. Multivariate statistical analyses- correlation matrix, principal component analysis, and cluster analysis identified industrial effluents as the dominant pollution source, with heavy metal concentrations correlating with industrial discharges. The findings highlight the urgent need for effective wastewater treatment, stricter environmental regulations, and sustainable water management strategies to mitigate contamination risks. Addressing heavy metal pollution in industrialized regions of Bangladesh is essential for protecting public health and ensuring the long-term sustainability of water resources.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 527-538"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chemically functionalized Eggs capsules of Sea Snail (ess) banded dye-murex for bioremediation applications 用于生物修复应用的化学功能化海螺(非)带状染料凝胶卵胶囊
IF 9
Environmental Chemistry and Ecotoxicology Pub Date : 2025-01-01 DOI: 10.1016/j.enceco.2025.03.009
Marilena Donnaloia , Francesco De Mastro , Carlo Porfido , Maria Michela Giangregorio , Roberto Terzano , Gennaro Brunetti , Danilo Vona
{"title":"Chemically functionalized Eggs capsules of Sea Snail (ess) banded dye-murex for bioremediation applications","authors":"Marilena Donnaloia ,&nbsp;Francesco De Mastro ,&nbsp;Carlo Porfido ,&nbsp;Maria Michela Giangregorio ,&nbsp;Roberto Terzano ,&nbsp;Gennaro Brunetti ,&nbsp;Danilo Vona","doi":"10.1016/j.enceco.2025.03.009","DOIUrl":"10.1016/j.enceco.2025.03.009","url":null,"abstract":"<div><div>among materials proposed in literature to remediate the environment, biohybrid composites at the interface between material science, chemistry and biology are the most promising. In this paper, we first contemplate the use of porous capsules, released by marine murex snails after eggs hatching, as a natural matrix capable of adsorbing organic pollutants. This study starts to investigate chemical and morphological features of this envisaging, unexplored protein material. Then, the chemical topography of egg capsules has been potentiated <em>via</em> a surface decoration with the polyphenol gallic acid, leading to enhance the bioremediation potential of the final biohybrid material. This moiety helped to give a huge activation of the adsorption towards a specific organic pollutant: the drug Tetracycline. The bioorganic methodology begins with bioconjugation <em>via</em> direct targeting of the exposed Lysine residues with polyphenol moieties. The material was morphologically investigated <em>via</em> high-resolution X-ray micro-computed tomography (HR X-ray μ-CT), and characterized using Raman spectroscopy, Fourier Transformed Infrared-attenuated total reflectance (FTIR-ATR), micro-IR, elemental, and BET analysis, after the bioorganic decoration. For the <em>in vitro</em> environmental remediation test, Tetracycline was chosen as a model drug molecule, and the specific adsorption was tested concerning the mass of the investigated material, different pH conditions (considering limit values), till evaluating the recycle of the material. The functionalization efficiently sparked the properties of the starting material, leading to an increase in the biosorption of the model urban pharmaceutical pollutant Tetracycline. Compared to the natural material, the functionalized matrix showed a sorbing capacity 12.5 times higher, leading to the sorption of about 25 mmol of Tetracycline per g of sorbent. In addition, the functionalized material remained active up to 5 sorption cycles. This outcome represents an achievement made from the combination of natural materials and Nature inspired molecular moieties to act as efficient platforms for self-cleaning, leading to environmental remediation.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 644-654"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143748188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nanoplastics in aquatic environments: The hidden impact of aging on fate and toxicity 水生环境中的纳米塑料:老化对命运和毒性的潜在影响
IF 9
Environmental Chemistry and Ecotoxicology Pub Date : 2025-01-01 DOI: 10.1016/j.enceco.2025.02.007
Rega Permana , Swaroop Chakraborty , Eugenia Valsami-Jones
{"title":"Nanoplastics in aquatic environments: The hidden impact of aging on fate and toxicity","authors":"Rega Permana ,&nbsp;Swaroop Chakraborty ,&nbsp;Eugenia Valsami-Jones","doi":"10.1016/j.enceco.2025.02.007","DOIUrl":"10.1016/j.enceco.2025.02.007","url":null,"abstract":"<div><div>The increasing release of plastic waste into aquatic ecosystems has led to the widespread occurrence of secondary microplastics (MPs) and nanoplastics (NPs), raising significant environmental and health concerns. While the toxicological effects of pristine NPs have been well documented, the role of aging—through processes such as ultraviolet (UV) photoaging and chemical oxidation—remains largely understudied. Aging fundamentally alters the physicochemical properties of NPs, potentially affecting their aggregation behaviour, eco-corona formation, and interactions with natural organic matter (NOM) and ions in aquatic environments. These changes may drastically shift the bioavailability and toxicity of NPs, making current assessments based on pristine particles environmentally unrealistic. This review synthesises the existing literature on NP aging, exploring how it affects their fate, transport, and toxicological impact on aquatic organisms. By identifying key knowledge gaps and highlighting the need for studies that account for environmental aging, this paper offers a roadmap for future research in NP environmental risk assessment. Understanding the dynamic transformations of NPs post-aging is crucial for developing more accurate models of their long-term ecological and human health impacts.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 429-444"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143437913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fluorinated liquid crystal monomer (FLCM) induces kidney dysfunction by disrupting PPARα-mediated fatty acid oxidation: In vivo, in vitro, and in silico assays 氟化液晶单体(FLCM)通过破坏ppar α-介导的脂肪酸氧化诱导肾功能障碍:体内、体外和硅实验
IF 9
Environmental Chemistry and Ecotoxicology Pub Date : 2025-01-01 DOI: 10.1016/j.enceco.2024.12.002
Lin Peng , Zenghua Qi , Li Xiang , Wei Wang , Guodong Cao , Yi Ru , Xiaoxiao Wang , Siyi Lin , Zhu Yang , Hong Yan , Zongwei Cai
{"title":"Fluorinated liquid crystal monomer (FLCM) induces kidney dysfunction by disrupting PPARα-mediated fatty acid oxidation: In vivo, in vitro, and in silico assays","authors":"Lin Peng ,&nbsp;Zenghua Qi ,&nbsp;Li Xiang ,&nbsp;Wei Wang ,&nbsp;Guodong Cao ,&nbsp;Yi Ru ,&nbsp;Xiaoxiao Wang ,&nbsp;Siyi Lin ,&nbsp;Zhu Yang ,&nbsp;Hong Yan ,&nbsp;Zongwei Cai","doi":"10.1016/j.enceco.2024.12.002","DOIUrl":"10.1016/j.enceco.2024.12.002","url":null,"abstract":"<div><div>Fluorinated liquid crystal monomers (FLCMs) are ubiquitous in our daily life as being the units of liquid crystal displays, yet their toxicological impacts remain largely unexplored. Herein, this study presents a comprehensive investigation into the hazardous effects of 3,4-difluoro-4′-(trans-4-ethylcyclohexyl)-biphenyl (DFECB), a representative biphenyl FLCM, using <em>in vivo</em>, <em>in vitro</em>, and <em>in silico</em> approaches. Mice exposed to human-relevant concentrations of DFECB for 30 days exhibited renal dysfunction, characterized by interstitial inflammation, glomerular morphological changes and metabolic disorders. Metabolomic profiling revealed inhibited fatty acid <em>β</em>-oxidation as a key factor in renal impairment, correlating with significant downregulation of peroxisome proliferator-activated receptor <em>α</em> (PPAR<em>α</em>). <em>In vitro</em> assays demonstrated DFECB-induced cytotoxicity, oxidative stress, inflammation and energy deficit in renal cells. Importantly, pretreatment with the PPAR<em>α</em> agonist mitigated the adverse effects of DFECB, underscoring the central role of PPAR<em>α</em> in DFECB-induced nephrotoxicity. Molecular docking simulations elucidated strong halogen and hydrophobic interactions between DFECB and PPAR<em>α</em>, providing mechanistic insights. Collectively, these results suggested that DFECB could act as a disruptor of the PPAR<em>α-</em>mediated fatty acid metabolism pathway, leading to renal dysfunction. This study highlights the potential health risks associated with FLCMs and emphasizes the need for their scientific regulation and further toxicological investigation.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 192-200"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-resolution two-dimensional mapping of arsenic concentration in soil-water micro-interfaces with diffusive gradients in thin films 薄膜中具有扩散梯度的土壤-水微界面中砷浓度的高分辨率二维映射
IF 9
Environmental Chemistry and Ecotoxicology Pub Date : 2025-01-01 DOI: 10.1016/j.enceco.2024.12.006
Xitong Li, Jiahui Zuo, Chuangchuang Zhang, Tieliang Zhang, Zeying He, Qiwen Zhou, Yujie Zhao, Wenjng Liu
{"title":"High-resolution two-dimensional mapping of arsenic concentration in soil-water micro-interfaces with diffusive gradients in thin films","authors":"Xitong Li,&nbsp;Jiahui Zuo,&nbsp;Chuangchuang Zhang,&nbsp;Tieliang Zhang,&nbsp;Zeying He,&nbsp;Qiwen Zhou,&nbsp;Yujie Zhao,&nbsp;Wenjng Liu","doi":"10.1016/j.enceco.2024.12.006","DOIUrl":"10.1016/j.enceco.2024.12.006","url":null,"abstract":"<div><div>Arsenic (As) contamination in soils poses significant environmental and health risks, particularly in Asia. We present a new diffusive Gradients in thin-film (DGT) binding material (Bio-TiO<sub>2</sub>) using microbial-assisted <em>in situ</em> precipitation, to determine the spatial distribution of As at submillimeter resolution. The Bio-TiO₂ gel exhibited superior homogeneity, smaller particle sizes, and higher adsorption capacity for As(V) (133.6 μg/cm<sup>2</sup>) and As(III) (55.2 μg/cm<sup>2</sup>) compared to most reported As binding gels. The DGT measurements provided high-resolution, two-dimensional mapping on As distribution in soil-water micro-interfaces process during soil flooding and drainage conditions, elucidating As dynamics with a sub-millimeter resolution (∼0.1 mm per pixel). This work presents an innovative and efficient method for As monitoring, providing significant implications for assessing As bioavailability and environmental risk.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 211-220"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ecotoxicological impacts of synthetic microfiber pollutants and development of sustainable mitigation strategies 合成微纤维污染物的生态毒理学影响和可持续减缓战略的制定
IF 9
Environmental Chemistry and Ecotoxicology Pub Date : 2025-01-01 DOI: 10.1016/j.enceco.2024.12.003
Akankshya Das, Sudeshna Dey, Alok Prasad Das
{"title":"Ecotoxicological impacts of synthetic microfiber pollutants and development of sustainable mitigation strategies","authors":"Akankshya Das,&nbsp;Sudeshna Dey,&nbsp;Alok Prasad Das","doi":"10.1016/j.enceco.2024.12.003","DOIUrl":"10.1016/j.enceco.2024.12.003","url":null,"abstract":"<div><div>Microfibers are one of the most widespread, persistent, and increasingly common pollutants in wastewater accounting for 85 % of global shoreline pollution, and are found in 54 % of individual fish species. The current possible sources of this pollution are domestic laundering processes, commercial fishing activities, laundry discharge, and waste textiles relating to various anthropogenic activities. Approximately 90,000–380,000 tons of fiber have accumulated in the world's oceans. Microfiber pollution from textile manufacturing and everyday laundering processes releases up to 90 % of primary microfibers in the oceans. The consumption of synthetic microfibres by living organisms can disrupt feeding behaviors, impair growth, and compromise reproductive capabilities, ultimately resulting in effects at the population level. This paper focuses on improving the understanding of urban population influence on microfiber pollution and its fate and transport through various pathways into the environment. The review also emphasizes the ecotoxicological consequences of microfiber pollution on various living organisms and human health. Most significantly, the paper highlights novel strategies for sustainable microfiber waste management approaches.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 201-210"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rapid SERS detection of antimony using a superparamagnetic FA@MIL-101(Fe) composite substrate 利用超顺磁FA@MIL-101(Fe)复合衬底快速SERS检测锑
IF 9
Environmental Chemistry and Ecotoxicology Pub Date : 2025-01-01 DOI: 10.1016/j.enceco.2024.12.007
Zhenli Sun , Jianghong Tang , Xunlong Ji , Jingjing Du
{"title":"Rapid SERS detection of antimony using a superparamagnetic FA@MIL-101(Fe) composite substrate","authors":"Zhenli Sun ,&nbsp;Jianghong Tang ,&nbsp;Xunlong Ji ,&nbsp;Jingjing Du","doi":"10.1016/j.enceco.2024.12.007","DOIUrl":"10.1016/j.enceco.2024.12.007","url":null,"abstract":"<div><div>The pollution of antimony (Sb) and its accumulation as a persistent toxic substance (PTS) within environmental systems, leading to substantial hazards for ecosystems and public health. Therefore, developing rapid and sensitive methods for Sb detection is essential for mitigating its environmental impact. SERS presents a promising approach for detecting Sb, attributed to its high sensitivity and ability to capture distinct molecular fingerprints. However, traditional SERS substrates have struggled with effective detection because of weak interactions between Sb and traditional SERS substrate. To address this issue, a FA@MIL-101(Fe) composite combining Fe₃O₄’s magnetic properties and MIL-101(Fe)’s strong adsorption was synthesized, significantly enhancing Sb(III) detection. This substrate showed high sensitivity and selectivity, achieving a detection limit below 4 × 10<sup>−8</sup> M, while effectively minimizing interference from other ions. Additionally, the substrate maintained long-term stability, consistently performing over 21 days. The FA@MIL-101(Fe) composite substrate offers a versatile and efficient platform for Sb(III) detection, providing broad potential for monitoring PTS in environmental applications.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 221-228"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synergistic mechanism of modified nZVI and Citrobacter reshaping sludge microbiome drives co-removal of HBCD and nutrients in municipal wastewater 改性nZVI与柠檬酸杆菌重塑污泥微生物群协同去除城市污水中六溴环十二烷和营养物质的机理
IF 9
Environmental Chemistry and Ecotoxicology Pub Date : 2025-01-01 DOI: 10.1016/j.enceco.2025.05.003
Tianyu Li , Yuzhe He , Weixian Zhang , Xingxing Peng
{"title":"Synergistic mechanism of modified nZVI and Citrobacter reshaping sludge microbiome drives co-removal of HBCD and nutrients in municipal wastewater","authors":"Tianyu Li ,&nbsp;Yuzhe He ,&nbsp;Weixian Zhang ,&nbsp;Xingxing Peng","doi":"10.1016/j.enceco.2025.05.003","DOIUrl":"10.1016/j.enceco.2025.05.003","url":null,"abstract":"<div><div>Hexabromocyclododecane (HBCD), a persistent and toxic brominated flame retardant, poses severe ecological and health risks due to its bioaccumulation and endocrine-disrupting effects. Effective removal from wastewater is critical to mitigate risks. Coupling functional microbes with modified nanomaterials represents a robust approach for degrading such recalcitrant organohalides. Based on the research foundation of the functional bacterial strain <em>Citrobacter</em> sp. Y3 and a modified nano-zero-valent iron (nZVI) coupled system, we designed and constructed a novel anaerobic continuous stirred-tank reactor (CSTR) system for the treatment of municipal wastewater in this study. HBCD-contaminated wastewater and actual domestic sewage were fed into this CSTR system. During continuous monitoring of HBCD concentration changes over 360 h, we simultaneously tracked the removal efficiencies of nitrogen (N), phosphorus (P), and chemical oxygen demand (COD). The results demonstrated that the HBCD degradation rate reached 100 % within 72 h, while the removal of other nutrients met regulatory discharge requirements. The CSTR system significantly enriched diverse functional bacterial taxa harboring multiple functional genes, including organohalide-respiring bacteria (OHRB) (<em>rdhA/B</em>, <em>PecA/B</em>), iron-reducing bacteria (IRB) (<em>cymA</em>, <em>fur</em>), and nitrogen/phosphorus-removing bacteria (<em>hzoB</em>, <em>haoA</em>, <em>norB</em> and <em>pstA/B/C</em>). Dynamic interactions (synergistic cooperation and competition) among microbial communities drove the decomposition and transformation of pollutants. To our knowledge, this study provides the first demonstration of coupling functional bacteria with modified nanomaterials in activated sludge systems.</div></div>","PeriodicalId":100480,"journal":{"name":"Environmental Chemistry and Ecotoxicology","volume":"7 ","pages":"Pages 872-881"},"PeriodicalIF":9.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143927599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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