Journal of Hazardous Materials最新文献_第3页

Ambient PM2.5 exposure, physical activity, and cardiovascular dysfunction: Analysis of CHARLS data and experimental study in mice

IF 12.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Hazardous Materials

Pub Date : 2025-04-22 DOI: 10.1016/j.jhazmat.2025.138377

Hao Chang , Kun Pan , Xi Zhang , Zhonghua Lu , Yihui Wang , Di Liu , Yafen Lin , Yan Wu , Yi Lin , Qingyu Huang , Junchao Duan , Zhiwei Sun , Jinzhuo Zhao , Heqing Shen

Previous studies have confirmed ambient fine particulate matter (PM_2.5) as a major environmental risk factor for cardiovascular diseases (CVDs), yet the specific molecular pathways remain poorly understood. Furthermore, while physical activity benefits cardiovascular health, its protective effects against PM_2.5-induced damage need further explored. We aimed to investigate the relationship between long-term PM_2.5 exposure, physical activity, and cardiovascular health, and explore the potential molecular mechanisms. This research combined epidemiological and experimental approaches. The epidemiological study analyzed data from the China Health and Retirement Longitudinal Study (CHARLS) to investigate the associations among long-term PM_2.5 exposure, physical activity, and CVDs. For the experimental study, C57BL/6 male mice were assigned to either regular physical activity or sedentary behavior, and were exposed to PM_2.5 or filtered air (FA) for 2, 4, and 6 months. We observed that long-term PM_2.5 exposure significantly increased cardiovascular disease risk, while physical activity exhibited protective effects and can partially mitigate the adverse impacts of PM_2.5 on heart disease and dyslipidemia. In animal study, mice with long-term exposure to PM_2.5 demonstrated elevated blood pressure, disrupted adipokine levels, altered lipid profiles, and mitochondrial damage. Regular physical activity partially mitigated these adverse effects. Lipidomics and proteomics analyses revealed that PM_2.5 exposure disrupted lipid metabolism networks and protein regulatory pathways, while regular physical activity mitigated these perturbations through the modulation of lipid metabolism, the coagulation cascade, and immune responses. These findings underscore the importance of regular physical activity in public health strategies, while prioritizing PM_2.5 reduction measures for cardiovascular disease prevention.

以往的研究已经证实，环境中的细颗粒物（PM2.5）是心血管疾病（CVDs）的主要环境风险因素，但对其具体的分子途径仍然知之甚少。此外，虽然体育锻炼有益于心血管健康，但其对PM2.5引起的损伤的保护作用还需要进一步探讨。我们旨在研究长期 PM2.5 暴露、体育锻炼和心血管健康之间的关系，并探索潜在的分子机制。这项研究结合了流行病学和实验方法。流行病学研究分析了中国健康与退休纵向研究（CHARLS）的数据，探讨了长期PM2.5暴露、体力活动与心血管疾病之间的关系。在实验研究中，C57BL/6雄性小鼠被分配为经常运动或久坐不动，并暴露于PM2.5或过滤空气（FA）中2、4和6个月。我们观察到，长期暴露于PM2.5会显著增加心血管疾病风险，而体育锻炼则具有保护作用，可部分缓解PM2.5对心脏病和血脂异常的不利影响。在动物实验中，长期暴露于PM2.5的小鼠表现出血压升高、脂肪因子水平紊乱、血脂谱改变和线粒体损伤。有规律的体育锻炼部分缓解了这些不良影响。脂质组学和蛋白质组学分析表明，PM2.5暴露破坏了脂质代谢网络和蛋白质调控途径，而定期体育锻炼通过调节脂质代谢、凝血级联和免疫反应减轻了这些干扰。这些发现强调了定期体育锻炼在公共卫生战略中的重要性，同时将减少 PM2.5 的措施列为预防心血管疾病的优先事项。

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引用次数: 0

Microplastics in Lakes: Distribution Patterns and Influencing Factors

IF 13.6 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Hazardous Materials

Pub Date : 2025-04-22 DOI: 10.1016/j.jhazmat.2025.138339

Sijia Liang, Jianchao Liu, Meijun Bao, Yifan Fan, Ming Kong

As a kind of new pollutants, microplastics (MPs) have aroused public concern due to their widespread presence and potential ecological risks. Lakes, as crucial freshwater ecosystems and important water resources, are particularly vulnerable to MPs pollution. While MPs are known to be unevenly distributed within lakes, their distribution patterns and influencing factors have not been thoroughly understood. This review analyzes 84 field studies across 64 lakes worldwide to elucidate MPs distribution patterns and their driving mechanisms. Analysis reveals that MPs abundance is typically highest near areas of intense human activity and major water inflows, though hydrodynamics and wind conditions also influence spatial patterns. MPs characteristics (shape, size, color, polymer type) show distinct distribution patterns influenced by source types, transport mechanisms, and degradation processes. While surface water MPs concentrations vary seasonally due to precipitation, wind, and human activities, sediment cores indicate increasing MPs abundance in recent deposits. Integration of water and sediment sampling reveals that MPs characteristics affect their vertical distribution, with denser particles prone to sedimentation. This review identifies key knowledge gaps, including limited data on vertical distributions and temporal variations, and emphasizes the need for standardized methods and quantitative analysis of driving factors. These reviewed findings provide a foundation for understanding MPs fate in lake ecosystems and improving risk assessment capabilities, offering valuable insights for future surveys on MPs.

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引用次数: 0

Determinants of Trace Element Accumulation in Soft-Shell Clams (Mya arenaria) in Eastern Canada and Implications for Human Consumption

IF 13.6 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Hazardous Materials

Pub Date : 2025-04-22 DOI: 10.1016/j.jhazmat.2025.138385

Kimberley Desjardins, Dominic E. Ponton, François Bilodeau, Maikel Rosabal, Marc Amyot

Marine clams are an important country food with high nutritional value while being a route of human exposure to metals. The fresh- and salt-water interface in estuaries may impact metal speciation, leading to changes in bioavailability and bioaccumulation in clams. We evaluated which environmental variables correlate best with bioaccumulation of total mercury (THg), methylmercury (MeHg), and the sum of rare earth elements (ΣREEY) by the soft-shell clam (Mya arenaria) at the mouth of two contrasting rivers. We measured essential and non-essential elements, and nine arsenic (As) species in clams to assess the consumption risks and benefits to consumers. Results showed that clams near the coast of the higher DOC and dammed Romaine River yielded higher THg, MeHg, and ΣREEY concentrations than clams collected at the mouth of the undammed Mingan River. Clams more exposed to saline waters, as inferred from carbon (δ¹³C) and sulfur (δ³⁴S) isotopic signatures, had lower THg, MeHg, and ΣREEY bioaccumulation. Positive correlations were identified between THg in clams and sediments, as well as ΣREEY concentrations in both matrices, suggesting a transfer to clams from this compartment through filter feeding. The evaluation of the nutritional intake indicated that clams were a good source of iron (Fe) and selenium (Se). More than 40% of total As were organic forms of arsenobetaine (AsB). Therefore, a monthly portion of 188 g of soft-shell clam for elderly adults and pregnant or childbearing women and a monthly portion of 94 g for children should not lead to intake risks from non-essential elements.

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引用次数: 0

Comments on "Dialogue between algorithms and soil: Machine learning unravels the mystery of phthalates pollution in soil" by Pan et al. (2025)

IF 12.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Hazardous Materials

Pub Date : 2025-04-22 DOI: 10.1016/j.jhazmat.2025.138366

Souichi Oka, Yoshiyasu Takefuji

Pan et al. demonstrated the superior predictive performance of their machine learning ML models for soil phthalate PAE concentrations, highlighting the critical role of feature importance as assessed by SHapley Additive exPlanations (SHAP). Notably, the Multilayer Perceptron (MLP) model achieved the highest performance (R² = 0.8637), followed by SVR and XGBoost. However, concerns persist regarding the reliability of feature importance derived from these models and their SHAP interpretations. Specifically, predictive accuracy does not guarantee the validity of feature rankings due to the inherent biases present in tree-based, neural network, and kernel-based methods, which are further exacerbated by SHAP's inherent dependency on model outputs. To mitigate these biases, integrating robust statistical methods is crucial. Techniques such as Spearman's rho, Kendall's tau, Goodman-Kruskal's gamma, Somers' delta, and Hoeffding's dependence, combined with p-value analysis, offer unbiased assessments. Integrating these statistical methods alongside ML models ensures a more reliable evaluation of feature importance in environmental risk modeling. Consequently, future research should prioritize methodologies that combine ML with rigorous statistical validation to enhance accuracy and reduce biases.

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引用次数: 0

Molecular insights into dissolved organic matter post electrokinetic-persulfate treatment: Heteroatom induced resistance

IF 12.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Hazardous Materials

Pub Date : 2025-04-22 DOI: 10.1016/j.jhazmat.2025.138374

Xinxu Niu , Jian Liu , Shaohua Chen , Bin Jiang , Jianzhi Huang

The application of electrokinetic-enhanced in situ chemical oxidation remediation of contaminated sediments has attracted increasing attention. However, the molecular changes in dissolved organic matter (DOM) during these remediation processes remain unexplored. To address the gap, we explored the molecular transformation of DOM subjected to electrokinetic (EK)-persulfate treatment. The findings revealed that DOM transitioned from a reduced to an oxidized state, marked by the removal of low O/C molecules and the formation of high O/C molecules. Heteroatom-containing molecules accumulated and constituted the dominant fraction among the resistant molecules post-treatment. N-containing and Cl-containing molecules displayed elevated N/C and Cl/C ratios during the treatment, decomposing into smaller and N-rich or Cl-rich molecules, while S-containing molecules exhibited a decrease in S/O ratios. Oxygen addition reaction and dealkyl group reaction were identified as the two most common transformation pathways, contributing to the increased oxidation and resistance of DOM molecules. This study deepens our understanding of DOM transformation using EK-persulfate treatment and aids in assessing the potential risks associated with resistant molecules in its practical application.

电动力强化原位化学氧化修复受污染沉积物的应用已引起越来越多的关注。然而，在这些修复过程中，溶解有机物（DOM）的分子变化仍未得到研究。为了弥补这一空白，我们探索了经电动（EK）-过硫酸盐处理的溶解有机物（DOM）的分子转变。研究结果表明，DOM 从还原态转变为氧化态，其标志是低 O/C 分子的去除和高 O/C 分子的形成。含杂原子的分子不断积累，在处理后的抗性分子中占主导地位。在处理过程中，含氮分子和含氯分子的 N/C 和 Cl/C 比值升高，分解成更小的富氮分子或富氯分子，而含 S 分子的 S/O 比值下降。氧加成反应和脱烷基反应被认为是两种最常见的转化途径，有助于提高 DOM 分子的氧化性和抗性。这项研究加深了我们对使用 EK-过硫酸盐处理 DOM 转化的理解，有助于在实际应用中评估与抗性分子相关的潜在风险。

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引用次数: 0

Characterization of a novel 1,2-dichloroethane degrader Ancylobacter sp. J3 and use of its immobilized cells in the treatment of polluted groundwater

IF 12.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Hazardous Materials

Pub Date : 2025-04-22 DOI: 10.1016/j.jhazmat.2025.138346

Zhiguo Wu , Zihan Zuo , Xueyang Zhang , Huijuan Yan , Wenli Zhao , Liya Wu , Chaozheng Zhang , Zongzheng Yang

A novel 1,2-dichloroethane (1,2-DCA) degrading bacteria strain J3 was isolated from 1,2-DCA contaminated groundwater and identified as Ancylobacter sp. The strain J3 was associated with self-flocculation during the growth process, and the degradation pathway study showed that the bacteria could completely mineralize 1,2-DCA. The microorganism was immobilized and the optimum preparation conditions were obtained by orthogonal experiment: 6 % polyvinyl alcohol, 2 % sodium alginate, 1 % biochar, and 2 % CaCl_2, and the immobilized cells were named J3C. The degradation rates of J3C at low pH, temperature, and high concentration NaCl were higher than that of free J3. The fitting results of the pseudo-first-order degradation kinetics model showed that for above 200 mg/L 1,2-DCA, the degradation rate of J3C was higher than that of free J3. The adsorption process of the sterile J3C aligns with the pseudo-first-order kinetic model and the intraparticle diffusion model. The internal mass transfer kinetics analysis revealed that the beads with biochar and a small diameter (0.34 cm) were more conducive to mass transfer. Finally, remediation of real polluted groundwater by J3C shows that for groundwater with a pH value of about 7, 1,2-DCA concentrations of about 100, 200 mg/L, 1,2-DCA can be completely degraded by J3C, while for groundwater with a pH value of 12, 250 mg/L 1,2-DCA, the degradation rate was 83.15 % by J3C, 66.91 % higher than that of free J3. The changes in microbial communities in groundwater showed that J3C disturbed the groundwater microbial little for the immobilized cells in J3C originated from the groundwater.

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引用次数: 0

Emission characteristics of VOCs from the typical spent lithium-ion battery recycling industry

IF 12.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Hazardous Materials

Pub Date : 2025-04-22 DOI: 10.1016/j.jhazmat.2025.138381

Lei Zhou , Fengbin Ji , Zhiling Wang , Junkang Fan , Heng Chen , Manyun Xu , Zhe Liu , Liming Yang , Xubiao Luo

In recent years, with the rapid rise in electric vehicles and renewable energy storage solutions, decommissioning spent lithium-ion batteries (LIBs) has become an increasingly pressing issue. The volatile organic compounds (VOCs) generated during the recycling of LIBs caused environmental pollution and health hazards. This work investigated the emission characteristics of VOCs from two typical spent LIB recycling plants. The findings indicated that the total VOC emission concentrations from plants A and B were 54.24 mg/m³ and 322.51 mg/m³ , respectively. The predominant VOCs identified across different processing stages were ethyl acetate in the crushing stage, 1,2-dichloroethane and epichlorohydrin in the pyrolysis stage, chloromethane and 1,2-dichloroethane in the alkaline leaching stage, and acetaldehyde and cyclohexane in the acid leaching stage. Halogenated hydrocarbons and oxygenated VOCs were the dominant categories of gaseous pollutants. These compounds represent key species within the VOCs profile emitted while recycling spent LIBs. Moreover, the study assessed the potential risk of ozone formation associated with VOC emissions during recycling. The results highlighted that oxygenated VOCs and alkanes were the main contributors to ozone formation in this industry, accounting for 47 %-95 % of total ozone-forming potential. Key compounds contributing to ozone formation included acetaldehyde, n-hexane, propanal, p-xylene, ethylene, and cyclohexane. This work systematically examined the characteristics of VOC emissions throughout the recycling process of spent LIBs, providing essential data and guidance for more sustainable recycling and utilization practices.

{"title":"Emission characteristics of VOCs from the typical spent lithium-ion battery recycling industry","authors":"Lei Zhou , Fengbin Ji , Zhiling Wang , Junkang Fan , Heng Chen , Manyun Xu , Zhe Liu , Liming Yang , Xubiao Luo","doi":"10.1016/j.jhazmat.2025.138381","DOIUrl":"10.1016/j.jhazmat.2025.138381","url":null,"abstract":"<div><div>In recent years, with the rapid rise in electric vehicles and renewable energy storage solutions, decommissioning spent lithium-ion batteries (LIBs) has become an increasingly pressing issue. The volatile organic compounds (VOCs) generated during the recycling of LIBs caused environmental pollution and health hazards. This work investigated the emission characteristics of VOCs from two typical spent LIB recycling plants. The findings indicated that the total VOC emission concentrations from plants A and B were 54.24 mg/m³ and 322.51 mg/m³ , respectively. The predominant VOCs identified across different processing stages were ethyl acetate in the crushing stage, 1,2-dichloroethane and epichlorohydrin in the pyrolysis stage, chloromethane and 1,2-dichloroethane in the alkaline leaching stage, and acetaldehyde and cyclohexane in the acid leaching stage. Halogenated hydrocarbons and oxygenated VOCs were the dominant categories of gaseous pollutants. These compounds represent key species within the VOCs profile emitted while recycling spent LIBs. Moreover, the study assessed the potential risk of ozone formation associated with VOC emissions during recycling. The results highlighted that oxygenated VOCs and alkanes were the main contributors to ozone formation in this industry, accounting for 47 %-95 % of total ozone-forming potential. Key compounds contributing to ozone formation included acetaldehyde, n-hexane, propanal, p-xylene, ethylene, and cyclohexane. This work systematically examined the characteristics of VOC emissions throughout the recycling process of spent LIBs, providing essential data and guidance for more sustainable recycling and utilization practices.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"493 ","pages":"Article 138381"},"PeriodicalIF":12.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143857697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of toxic pyrogenic compounds derived from conventional cigarettes and heated tobacco products

IF 12.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Hazardous Materials

Pub Date : 2025-04-22 DOI: 10.1016/j.jhazmat.2025.138357

Taewoo Lee , Jonghyun Park , Youkwan Kim , Wei-Hsin Chen , Eilhann E. Kwon

Heated tobacco products (HTPs) have gained popularity as alternatives to conventional cigarettes (CCs). Nevertheless, assessing their health hazards remains challenging owing to variations in individual smoking habits. Thus, this study aimed to identify toxic compounds from simulated smoking conditions and evaluate their toxicity in humans. Tobacco leaves (TL) and reconstituted tobacco leaves (RTL), sourced from the CCs and HTPs, were used as model feedstocks. Thermogravimetric analysis revealed that RTL contained higher nicotine and glycerol levels but lower carbohydrate content than TL. The smoking mechanisms of both tobacco samples were found to be governed by pyrolysis under different temperatures (TL: 200–800 °C and RTL: 350 °C). In TL pyrolysis, the toxic compound formations are influenced by the temperature. Nicotine was dominant at ≤ 400 °C, whereas temperatures ≥ 400 °C led to increased formation of toxic compounds, particularly carcinogens. In contrast, RTL pyrolysis at 350 °C generated fewer carcinogens because controlled heating inhibited thermolysis of the lignocellulosic components. To assess carcinogenicity, peak intensities of TL and RTL-derived carcinogens were normalized using nicotine as an addiction factor. Relative carcinogenicity of RTL was reduced by more than two folds compared with that of TL. This comparative assessment suggests that HTP smoking may reduce exposure to carcinogenic compounds compared to CC smoking, although additional clinical factors should be considered for more accurate assessment of the associated health risks.

{"title":"Comparison of toxic pyrogenic compounds derived from conventional cigarettes and heated tobacco products","authors":"Taewoo Lee , Jonghyun Park , Youkwan Kim , Wei-Hsin Chen , Eilhann E. Kwon","doi":"10.1016/j.jhazmat.2025.138357","DOIUrl":"10.1016/j.jhazmat.2025.138357","url":null,"abstract":"<div><div>Heated tobacco products (HTPs) have gained popularity as alternatives to conventional cigarettes (CCs). Nevertheless, assessing their health hazards remains challenging owing to variations in individual smoking habits. Thus, this study aimed to identify toxic compounds from simulated smoking conditions and evaluate their toxicity in humans. Tobacco leaves (TL) and reconstituted tobacco leaves (RTL), sourced from the CCs and HTPs, were used as model feedstocks. Thermogravimetric analysis revealed that RTL contained higher nicotine and glycerol levels but lower carbohydrate content than TL. The smoking mechanisms of both tobacco samples were found to be governed by pyrolysis under different temperatures (TL: 200–800 °C and RTL: 350 °C). In TL pyrolysis, the toxic compound formations are influenced by the temperature. Nicotine was dominant at ≤ 400 °C, whereas temperatures ≥ 400 °C led to increased formation of toxic compounds, particularly carcinogens. In contrast, RTL pyrolysis at 350 °C generated fewer carcinogens because controlled heating inhibited thermolysis of the lignocellulosic components. To assess carcinogenicity, peak intensities of TL and RTL-derived carcinogens were normalized using nicotine as an addiction factor. Relative carcinogenicity of RTL was reduced by more than two folds compared with that of TL. This comparative assessment suggests that HTP smoking may reduce exposure to carcinogenic compounds compared to CC smoking, although additional clinical factors should be considered for more accurate assessment of the associated health risks.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"493 ","pages":"Article 138357"},"PeriodicalIF":12.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143857691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Understanding the availability of metals in agricultural soils and the impact of manure application

IF 12.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Hazardous Materials

Pub Date : 2025-04-22 DOI: 10.1016/j.jhazmat.2025.138386

Mingyue Luo , Delphine Jenny Vandeputte , Sybrien Lievens , Guanlei Li , Yiqi Su , Marijke Huysmans , Marc Elskens , Willy Baeyens , Yue Gao

Metal concentrations and distributions in a Belgian agricultural soil and the impact of manure application were studied. Most metal contaminants, except Pb and Co, reached their highest levels in winter (between 1.7 and 5.3 times higher than in other seasons) due to manure application. The vertical metal profiles in the soil also varied seasonally because of agricultural activities and plant growth. Meanwhile, sequential extraction on the soil solid phase pointed out that on an annual basis, Cd, Co, and Mn were primarily present in the exchangeable fraction at 42, 34 and 41 % respectively (also Ni was quite present in the exchangeable fraction at 20 %), that Pb was in the reducible fraction at 52 %, while Cr and Fe were more enriched in the residual fraction at 66 and 64 %, respectively. In addition, metal interactions between soil porewater and solid phase were investigated by using the passive sampling technique of Diffusive Gradients in Thin-films (DGT) and the one-dimensional DGT-induced flux in sediments (1D-DIFS) model. These results suggest a high release rate of Cd, Co, Mn and Ni from the soil solid phase to the pore water, and a low release rate of Cr, Cu, Fe and Pb. Therefore, the first group of metals poses a much greater risk for plant uptake and intoxication than the second group of metals.

{"title":"Understanding the availability of metals in agricultural soils and the impact of manure application","authors":"Mingyue Luo , Delphine Jenny Vandeputte , Sybrien Lievens , Guanlei Li , Yiqi Su , Marijke Huysmans , Marc Elskens , Willy Baeyens , Yue Gao","doi":"10.1016/j.jhazmat.2025.138386","DOIUrl":"10.1016/j.jhazmat.2025.138386","url":null,"abstract":"<div><div>Metal concentrations and distributions in a Belgian agricultural soil and the impact of manure application were studied. Most metal contaminants, except Pb and Co, reached their highest levels in winter (between 1.7 and 5.3 times higher than in other seasons) due to manure application. The vertical metal profiles in the soil also varied seasonally because of agricultural activities and plant growth. Meanwhile, sequential extraction on the soil solid phase pointed out that on an annual basis, Cd, Co, and Mn were primarily present in the exchangeable fraction at 42, 34 and 41 % respectively (also Ni was quite present in the exchangeable fraction at 20 %), that Pb was in the reducible fraction at 52 %, while Cr and Fe were more enriched in the residual fraction at 66 and 64 %, respectively. In addition, metal interactions between soil porewater and solid phase were investigated by using the passive sampling technique of Diffusive Gradients in Thin-films (DGT) and the one-dimensional DGT-induced flux in sediments (1D-DIFS) model. These results suggest a high release rate of Cd, Co, Mn and Ni from the soil solid phase to the pore water, and a low release rate of Cr, Cu, Fe and Pb. Therefore, the first group of metals poses a much greater risk for plant uptake and intoxication than the second group of metals.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"493 ","pages":"Article 138386"},"PeriodicalIF":12.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hetero-Charge-Based Surface Enhanced Raman Spectroscopy: An in situ rapid detection strategy for real marine nanoplastics

IF 13.6 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Hazardous Materials

Pub Date : 2025-04-22 DOI: 10.1016/j.jhazmat.2025.138390

Tianshuo Lan, Xinna Yu, Yiping Du, Tianyuan Liu, Meizhen Huang

As a worldwide pollution problem, the investigation and detection of marine nanoplastics (plastics <1 µm) have attracted considerable attention. However, current detection methods for marine nanoplastic specimens require membrane filtration or drying enrichment as a pretreatment procedure. Developing a rapid detection method to directly detect nanoplastics in aqueous solutions without any pretreatment is an enormous challenge. In this study, an in situ rapid hetero-charge-based surface-enhanced Raman spectroscopy (SERS) nanoplastics detection strategy is proposed, and two modulated charged gold nano sphere particles (AuNPs) are designed for nanoplastics detection in situ. According to the electric charge attraction effect and the customized AuNPs, the SERS characteristic peak signal of the polystyrene nanoplastics (PS NPs) was clearly identified, and the lowest detected concentration was 0.1 µg/mL in artificial seawater. Meanwhile, this detection strategy was utilized for a real marine specimen which was successfully detected and identified the existence of PS, and the estimated concentration of this specimen was 1.544E-4 µg/mL. These results indicate that this in situ SERS detection strategy could be utilized for the further analysis of both charged nanoplastics under real marine conditions.

{"title":"Hetero-Charge-Based Surface Enhanced Raman Spectroscopy: An in situ rapid detection strategy for real marine nanoplastics","authors":"Tianshuo Lan, Xinna Yu, Yiping Du, Tianyuan Liu, Meizhen Huang","doi":"10.1016/j.jhazmat.2025.138390","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.138390","url":null,"abstract":"As a worldwide pollution problem, the investigation and detection of marine nanoplastics (plastics <strong><</strong>1 µm) have attracted considerable attention. However, current detection methods for marine nanoplastic specimens require membrane filtration or drying enrichment as a pretreatment procedure. Developing a rapid detection method to directly detect nanoplastics in aqueous solutions without any pretreatment is an enormous challenge. In this study, an in situ rapid hetero-charge-based surface-enhanced Raman spectroscopy (SERS) nanoplastics detection strategy is proposed, and two modulated charged gold nano sphere particles (AuNPs) are designed for nanoplastics detection in situ. According to the electric charge attraction effect and the customized AuNPs, the SERS characteristic peak signal of the polystyrene nanoplastics (PS NPs) was clearly identified, and the lowest detected concentration was 0.1 µg/mL in artificial seawater. Meanwhile, this detection strategy was utilized for a real marine specimen which was successfully detected and identified the existence of PS, and the estimated concentration of this specimen was 1.544E-4 µg/mL. These results indicate that this in situ SERS detection strategy could be utilized for the further analysis of both charged nanoplastics under real marine conditions.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"16 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0