International Journal of Environmental Science and Technology最新文献_第8页

Evaluation of antibiotic resistance, heavy metal levels, and oxidative stress biomarkers in E. coli-contaminated milk in Kurdistan 库尔德斯坦地区大肠杆菌污染牛奶中抗生素耐药性、重金属水平和氧化应激生物标志物的评估

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2025-06-02 DOI: 10.1007/s13762-025-06549-4

R. Nabizadeh, M. Raeeszadeh, H. Karimi Darehabi

{"title":"Evaluation of antibiotic resistance, heavy metal levels, and oxidative stress biomarkers in E. coli-contaminated milk in Kurdistan","authors":"R. Nabizadeh, M. Raeeszadeh, H. Karimi Darehabi","doi":"10.1007/s13762-025-06549-4","DOIUrl":"10.1007/s13762-025-06549-4","url":null,"abstract":"<div><p>The production of safe milk in dairy farms is crucial for protecting public health. This study explored microbial contamination, chemical pollutants, and antibiotic resistance in milk from dairy farms in Kurdistan Province. A total of 142 milk samples were analyzed for <i>E. coli</i> contamination, heavy metal concentrations, and oxidative stress biomarkers. <i>E. coli</i> was isolated and tested for antibiotic resistance, while heavy metals were quantified using the ICP-MS method. Oxidative stress indicators, such as catalase, superoxide dismutase, and malondialdehyde, were also evaluated. The study found <i>E. coli</i> in 26.05% of samples, with 50% exhibiting resistance to doxycycline and sulfamethoxazole + trimethoprim. Heavy metal concentrations, except for lead, were significantly higher in <i>E. coli</i>-positive samples (P < 0.001). Catalase activity was present in <i>E. coli</i>-negative samples, but malondialdehyde levels were higher in positive samples. A negative correlation was observed between arsenic levels and catalase activity, while a positive correlation existed between arsenic and malondialdehyde. Additionally, iron showed a positive correlation with catalase and superoxide dismutase. Toxic metals like cadmium and mercury exceeded permissible limits in <i>E. coli-</i>positive samples compared to negative ones. The results underscore the importance of routine microbial and chemical monitoring of milk to ensure public health. Strict control measures must be implemented to produce safe, high-quality milk.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 11","pages":"10551 - 10562"},"PeriodicalIF":3.4,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Physicochemical analysis and metallic trace elements assessment in aquatic matrices of the coastal region of Mahdia, Tunisia 突尼斯马赫迪亚沿海地区水生基质的理化分析和金属微量元素评价

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2025-05-25 DOI: 10.1007/s13762-025-06537-8

A. Belaid, A. Jebara, V. Nava, J. J. Santana Rodríguez, G. Di Bella, H. Ben Mansour

{"title":"Physicochemical analysis and metallic trace elements assessment in aquatic matrices of the coastal region of Mahdia, Tunisia","authors":"A. Belaid, A. Jebara, V. Nava, J. J. Santana Rodríguez, G. Di Bella, H. Ben Mansour","doi":"10.1007/s13762-025-06537-8","DOIUrl":"10.1007/s13762-025-06537-8","url":null,"abstract":"<div><p>Environmental contamination by trace metallic elements has become an increasingly urgent issue, necessitating immediate scientific attention. This study employed a combination of physicochemical and ecotoxicological analyses to evaluate the environmental quality of the coastal region of Mahdia, Tunisia. The investigation focused on toxic elements across various environmental and food matrices, including water, sediments, plants, and fish, to provide a holistic assessment of contamination levels along the Mahdia coastline. Elemental analyses, performed using inductively coupled plasma mass spectrometry, revealed significant contamination in the region. Particularly high concentrations of barium (369.90 ± 223.23 mg/kg) and manganese (81.42 ± 40.01 mg/kg) were detected at the Rejiche coastal site. Additionally, the coastal site of La Chebba exhibited elevated titanium levels, averaging 41.40 ± 14.86 mg/kg, which were significantly higher than those at other studied sites. The biological matrices analyzed showed that <i>Posidonia oceanica</i> leaves and the tissues of fish species such as <i>Sparus aurata</i> and <i>Sarpa salpa</i> were the most contaminated. These findings indicate that these species could serve as reliable bioindicators for monitoring marine contamination. In conclusion, the significant levels of toxic trace elements detected along the Mahdia coast underscore the pressing need for targeted interventions to mitigate environmental pollution. Urgent and coordinated efforts are essential to address this issue and safeguard the ecological integrity and public health of the region.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 14","pages":"14123 - 14136"},"PeriodicalIF":3.4,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Effect of microplastics on soil aggregate stability and organic carbon mineralization under flooding condition 水淹条件下微塑料对土壤团聚体稳定性和有机碳矿化的影响

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2025-05-24 DOI: 10.1007/s13762-025-06557-4

J. Fan, L. Huang, T. Duan, G. He, J. Sun

{"title":"Effect of microplastics on soil aggregate stability and organic carbon mineralization under flooding condition","authors":"J. Fan, L. Huang, T. Duan, G. He, J. Sun","doi":"10.1007/s13762-025-06557-4","DOIUrl":"10.1007/s13762-025-06557-4","url":null,"abstract":"<div><p>Microplastics (MPs) are environmental emerging contaminant in soil owing to their ecological risks to terrestrial ecosystems. However, their impacts on the transformation of soil organic carbon (SOC) formation, especially on storage and emission mechanisms, remain unclear. Thus, we investigated the soil aggregate stability and SOC mineralization in the MPs polluted soil on under flooded conditions, and two particle sizes and three concentrations of MPs were considered. Meanwhile, the partial least squares structural equation model (PLS-SEM) was used to ananlyze the direct and indirect influences of soil property variables mineralization rate. Results showed that MPs enhanced the increase in percentage of aggregate destruction (PAD), indicating a decrease in soil aggregate stability. Soil dissolved organic carbon (DOC) and particulate organic carbon (POC) content increased significantly as MPs content rose, while DOC showed a downward trend with flooded time prolonged. Moreover, MPs significantly changed the aromaticity, biological, and humification index of dissolved organic matter (DOM) in soil, and particle size and concentration are regarded control factors. MPs significantly increased mineralization rate, and smaller-sized MPs showed a more significant promotion on SOC mineralization. PLS-SEM analysis demonstrated significant associations among MPs concentration, PAD, DOC, POC, and mineralization rate. MPs can significantly weaken the stability of soil aggregates, expedite SOC mineralization, and enhance SOC form transformation. Particle size and concentration could be considered control factors in these processes. This study can provide critical insights for predicting carbon flux responses to MP contamination in paddy and wetland soils.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 14","pages":"14109 - 14122"},"PeriodicalIF":3.4,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Combined alkaline-activated persulfate and surfactant for remediation of diesel-contaminated soil in permafrost environments: laboratory study 碱性活化过硫酸盐与表面活性剂复合修复多年冻土中柴油污染土壤的实验研究

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2025-05-23 DOI: 10.1007/s13762-025-06503-4

P. Abolhosseini, V. Taillard, R. Martel, T. Robert, S. K. Brar, V. Boulanger-Martel

{"title":"Combined alkaline-activated persulfate and surfactant for remediation of diesel-contaminated soil in permafrost environments: laboratory study","authors":"P. Abolhosseini, V. Taillard, R. Martel, T. Robert, S. K. Brar, V. Boulanger-Martel","doi":"10.1007/s13762-025-06503-4","DOIUrl":"10.1007/s13762-025-06503-4","url":null,"abstract":"<div><p>Diesel is the primary energy supply source and the main source of contamination in the Arctic and sub-Arctic, posing challenges for remediation due to the permafrost presence, limited operational time window, lack of treatment facilities, and a sensitive ecosystem. This research aimed to develop a remediation technology applicable to a permafrost environment. Two remediation methods were evaluated: in-situ chemical oxidation (ISCO) using persulfate (PS) and calcium peroxide (CP), and surfactant-assisted in-situ chemical oxidation (S-ISCO), which combines the oxidants with a surfactant mixture. The inclusion of surfactant in the oxidant solution led to a consistent and steady decomposition of PS, a gradual and a progressive non-exothermic oxidation reaction, and enhanced the diesel transfer from soil to the aqueous phase. However, it can react with the oxidant, reducing the likelihood of the oxidant-diesel reaction. The evaluation of diesel concentration indicated that the surfactant presence could enhance the total diesel removal efficiency (in comparison to oxidant alone), although excessive surfactant reduced the oxidant’s effectiveness. A challenge in activation of PS by CP was generation of cement-like byproducts of CP hydration that could potentially restrict the diesel-oxidant interaction. However, insoluble byproducts elimination (by filtration), and solution adjustments (pH, PS, and CP concentration) proceeded with ˃ 99% and 90.8% diesel removal (initial concentration of 5000 mg/kg) after 8 weeks of ISCO and S-ISCO at ambient temperature. In the sub-Arctic soil treatment at 4.2 °C, 89.4 and 88.3% of diesel mass removal resulted in ISCO and SISCO, respectively, which are about 2 times higher than natural attenuation (41.6%).</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 14","pages":"14095 - 14108"},"PeriodicalIF":3.4,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Quantification and pollution profile of polycyclic aromatic hydrocarbons in coastal sediments of the south-central region of Bangladesh 孟加拉国中南部沿海沉积物中多环芳烃的定量和污染剖面

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2025-05-22 DOI: 10.1007/s13762-025-06511-4

N. Sultana, M. S. Islam, M. L. Hossain, S. A. Eti, S. Miah, V. Prakash, M. A. Salam

{"title":"Quantification and pollution profile of polycyclic aromatic hydrocarbons in coastal sediments of the south-central region of Bangladesh","authors":"N. Sultana, M. S. Islam, M. L. Hossain, S. A. Eti, S. Miah, V. Prakash, M. A. Salam","doi":"10.1007/s13762-025-06511-4","DOIUrl":"10.1007/s13762-025-06511-4","url":null,"abstract":"<div><p>Coastal ecosystems are increasingly threatened by polycyclic aromatic hydrocarbons (PAHs), which are persistent organic pollutants known for their carcinogenic and mutagenic effects. Bangladesh’s coastal regions are particularly vulnerable due to rapid industrialization, transportation, and tourism. However, limited research exists on PAH contamination in the sediments of these coastal regions. The motivation for this research arises from the potential health risks and ecological impacts associated with PAH accumulation, prompting an urgent need for effective pollution management strategies. This study aims to assess the levels, distribution, and sources of PAHs in the coastal sediment of three districts in Bangladesh using gas chromatography–mass spectrometry (GC–MS) and multivariate receptor models. Sixteen priority PAHs were analyzed, revealing a predominance of three to five ring structures. Source apportionment using Principal Component Analysis with Multiple Linear Regression (PCA-MLR), Positive Matrix Factorization (PMF), and the Unmix model identified coal combustion, traffic emissions, and biomass/wood burning as the primary contributors. PCA-MLR attributed 44.28%, 42.66%, and 13.07% to these sources, while PMF estimated 27.98%, 21.08%, and 38.85%, and the Unmix model assigned 24.91%, 25.23%, and 29.88%, respectively. Additionally, PMF and Unmix identified a mixed source contributing 12.09% and 24.9%, respectively. Our findings offer a comprehensive understanding of PAH contamination patterns in Bangladesh’s coastal sediments, identifying the critical sources of pollution and their relative contributions. The study underscores the urgent need for effective pollution control strategies to mitigate PAH accumulation and protect the ecological and socio-economic integrity of coastal regions.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 14","pages":"14061 - 14080"},"PeriodicalIF":3.4,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Characterization of solid waste at the University of Sciences and Arts of Chiapas for sustainable management purposes 在恰帕斯科学和艺术大学对固体废物的特性进行可持续管理

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2025-05-22 DOI: 10.1007/s13762-025-06497-z

J. A. Araiza-Aguilar, M. G. Reyes-Díaz, A. Arias-Salaya, S. López-Aguilar, M. N. Rojas-Valencia

{"title":"Characterization of solid waste at the University of Sciences and Arts of Chiapas for sustainable management purposes","authors":"J. A. Araiza-Aguilar, M. G. Reyes-Díaz, A. Arias-Salaya, S. López-Aguilar, M. N. Rojas-Valencia","doi":"10.1007/s13762-025-06497-z","DOIUrl":"10.1007/s13762-025-06497-z","url":null,"abstract":"<div><p>This paper presents the results obtained from a study of solid waste generation and quantification, carried out at an educational institution in the state of Chiapas, Mexico. The current conditions of waste management were also analyzed and some improvement strategies were proposed. The work carried out permitted to determine the per capita generation rates (0.048 kg/person-day). Through the study of the waste composition, it was found that the main fraction was plastic (35.135%), particularly PET (16.892%), followed by other fractions that can be recycled or treated, such as paper and cardboard (14.998%), as well as glass (3.039%) and metals (1.603%). The fraction of non-recyclable waste (38.397%) is made up of high volumetric weight sub-products, such as toilet paper (22.648%), as well as construction material waste (9.890%). Based on the results obtained, waste management strategies are proposed to improve the current situation, including the implementation of educational campaigns on waste separation, as well as training in solid waste management, both for the cleaning staff of the educational institution as well as for the school cafeteria staff. It is also proposed to restrict the use of PS plastic used at academic events or in the school cafeteria to reduce its generation. Finally, engineering strategies are proposed, such as the design and location of containers for plastic waste within the educational institution.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 14","pages":"14033 - 14046"},"PeriodicalIF":3.4,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Qualitative and quantitative assessment of reservoir water resources under the eutrophication using CE-QUAL-W2 应用ce - quality - w2对富营养化条件下水库水资源进行定性和定量评价

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2025-05-22 DOI: 10.1007/s13762-025-06519-w

S. Z. Hassani, P.-S. Ashofteh, F. Azadi

{"title":"Qualitative and quantitative assessment of reservoir water resources under the eutrophication using CE-QUAL-W2","authors":"S. Z. Hassani, P.-S. Ashofteh, F. Azadi","doi":"10.1007/s13762-025-06519-w","DOIUrl":"10.1007/s13762-025-06519-w","url":null,"abstract":"<div><p>This study examines the eutrophication phenomenon in the Ekbatan Dam (Hamadan, Iran) under 11 qualitative–quantitative scenarios. The two-dimensional model CE-QUAL-W2 was used to simulate the hydrodynamics and water quality parameters of the reservoir from 2019 to 2020. After assessing the current state of eutrophication in the Ekbatan Dam, eleven scenarios were analyzed, including reductions in inflow, outflow, and input pollutants. The results indicate that phosphate reduction under scenarios 9, 10, and 11 is minimal, while the highest phosphorus levels occur in scenario 8, where the inflow rate is reduced by 45%. Additionally, the findings suggest that eutrophication risks remain high from autumn to late February, with elevated phosphate concentrations observed. A 15% reduction in phosphorus input (scenario 9) leads to a notable decrease in phosphate levels compared to the current state of the reservoir. The lowest nitrate levels are observed in scenarios with reduced inflows and pollutant inputs, whereas the highest nitrate concentrations are associated with scenario 8. Overall, scenarios involving a 15% reduction in phosphorus and nitrate demonstrate better outcomes for mitigating eutrophication in the reservoir. These findings highlight the importance of studying and managing phosphorus to control the eutrophication process in the Ekbatan reservoir. </p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 11","pages":"10501 - 10514"},"PeriodicalIF":3.4,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Contamination legacy of Etruscan and Roman smelting at Populonia, a key pre-industrial metalworking site in Italy 伊特鲁里亚人和罗马人在Populonia冶炼的污染遗产，这是意大利一个重要的前工业金属加工地点

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2025-05-22 DOI: 10.1007/s13762-025-06510-5

F. Pasquetti, M. Galloni, M. Bini, N. Perchiazzi, G. Zanchetta

{"title":"Contamination legacy of Etruscan and Roman smelting at Populonia, a key pre-industrial metalworking site in Italy","authors":"F. Pasquetti, M. Galloni, M. Bini, N. Perchiazzi, G. Zanchetta","doi":"10.1007/s13762-025-06510-5","DOIUrl":"10.1007/s13762-025-06510-5","url":null,"abstract":"<div><p>The city of Populonia in the Gulf of Baratti (Southern Tuscany, Italy) was a prominent Mediterranean metalworking hub starting from Etruscan times (from eighth century BCE [Before Common Era]), particularly for iron production. Evidence of this extensive metallurgical activity includes large deposits of slag and metallurgical debris along the gulf. To assess the environmental impact of these activities, a mineralogical and geochemical study was conducted on soils and sedimentary deposits exposed along the Gulf of Baratti’s sea cliff. These deposits span from the Late Pleistocene to recent soils and include detrital slags deposits. Findings reveal that pre-anthropogenic deposits and soils have natural anomalous concentrations of chromium (Cr), nickel (Ni), and arsenic (As), originating from ophiolite complexes (Cr and Ni) in the nearby Apennine chain and polymetallic sulfide ore deposits (As) of Campiglia Marittima area. Erosion and river transport have caused an enrichment of these elements in the gulf leading to concentrations up to ten times higher than the average Upper Continental Crust. Calculating an enrichment factor (EF) index with paleosoil as a baseline, showed that soils and deposits linked to metallurgical activity are enriched up to 300 times in elements such as iron (Fe), tin (Sn), tungsten (W), lead (Pb), and copper (Cu)—key elements in iron and copper production. This study highlights significant trace metal dispersion during and after the metallurgical period, offering insights into natural background values for metals in Southern Tuscany.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 14","pages":"14047 - 14060"},"PeriodicalIF":3.4,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Adsorption of light green dye using Mg–Al-layered double hydroxides (LDHs) with carbonate and nitrate anions 镁铝层状双氢氧化物（LDHs）与碳酸盐和硝酸盐阴离子吸附浅绿色染料

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2025-05-21 DOI: 10.1007/s13762-025-06494-2

S. F. Al-Furhud, R. M. K. Mohamed, I. Alsohaimi, M. M. Kamel, M. Y. El-sayed, H. M. Youssef, A. M. Aldawsari, H. M. A. Hassan

{"title":"Adsorption of light green dye using Mg–Al-layered double hydroxides (LDHs) with carbonate and nitrate anions","authors":"S. F. Al-Furhud, R. M. K. Mohamed, I. Alsohaimi, M. M. Kamel, M. Y. El-sayed, H. M. Youssef, A. M. Aldawsari, H. M. A. Hassan","doi":"10.1007/s13762-025-06494-2","DOIUrl":"10.1007/s13762-025-06494-2","url":null,"abstract":"<div><p>Mg–Al LDHs intercalated with carbonate (CO₃<sup>2</sup>⁻) and nitrate (NO₃⁻) anions were synthesized using the coprecipitation technique. Both materials were utilized to uptake light green dye from aquatic systems through batch adsorption experiments. The fabricated LDHs were characterized using FTIR, XRD, surface area, and SEM. Several factors influencing the uptake process were systematically evaluated, including contact time, pH, dosage, and initial dye content at various temperatures (293, 303, and 313 K). The finding showed that the adsorption efficiency of Mg–Al LDH samples peaked at pH 5, with Mg–Al–NO₃ LDH (76.4%) outperforming Mg–Al–CO₃ LDH (62.5%) due to differences in surface charge and anion mobility. Adsorption equilibrium was reached within 30 min, with increased adsorbent dosage improving removal efficiency up to a threshold. The dye uptake performance was more remarkable for Mg–Al–NO₃ LDH (19.33 mg. g<sup>−1</sup>) than Mg–Al–CO₃ LDH (15.65 mg. g<sup>−1</sup>) at pH 5 and 293 K. Isotherm analysis identified Henry’s model for the initial adsorption stage and Temkin’s model for higher concentrations, confirming an endothermic process with ΔS > 0. The pseudo-second-order model (<i>R</i><sup>2</sup> = 0.9999) ascribed adsorption kinetics, while the Weber-Morris model indicated surface and intraparticle diffusion contributions. Thermodynamic analysis confirmed that the process was predominantly physisorption, driven by hydrogen bonding interactions between dye molecules and the –OH groups on the LDH surface. The superior removal capacity of Mg–Al–NO₃ LDH was attributed to stronger hydrogen bonding, facilitated by the presence of nitrate anions, which enhanced the electrostatic-interactions between the adsorbent and the dye molecules.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 14","pages":"14015 - 14032"},"PeriodicalIF":3.4,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Analysis of vegetation response to four climate factors based on the CTSS-RESTREND method 基于CTSS-RESTREND方法的植被对4种气候因子的响应分析

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2025-05-21 DOI: 10.1007/s13762-025-06527-w

B. Hao, S. Ding, Z. Wu, Z. Ruan, L. Mai, Y. Kuang

{"title":"Analysis of vegetation response to four climate factors based on the CTSS-RESTREND method","authors":"B. Hao, S. Ding, Z. Wu, Z. Ruan, L. Mai, Y. Kuang","doi":"10.1007/s13762-025-06527-w","DOIUrl":"10.1007/s13762-025-06527-w","url":null,"abstract":"<div><p>Climate change significantly influences vegetation growth, necessitating an in-depth understanding of the climate-driven dynamics of vegetation to formulate ecological and environmental policies. This study addresses the limitations of traditional correlation analysis methods by utilizing a combined approach of Residual Trend Analysis (RESTREND) and Time Series Segmentation Residual Trend Analysis (TSS-RESTREND), known as CTSS-RESTREND. By using this method, we examined the influence of near-surface air temperature, precipitation, humidity, and wind speed on vegetation growth in Guangdong Province from 2000 to 2020, using Normalized Difference Vegetation Index (NDVI) data and climatic variables. Using MOD13Q1 NDVI data and ERA5 downscaled climate reanalysis data, this research utilizes the CTSS-RESTREND algorithm to quantify the climate effects on vegetation. The analysis reveals that precipitation and humidity are the primary positive drivers of vegetation growth, temperature has a slightly higher positive than negative impact on vegetation, while wind speed generally has a negative impact on vegetation, but its effect is relatively slight. During the growing season, the growth of vegetation becomes more sensitive to the three climatic factors: temperature, precipitation, and humidity. This study provides a more accurate and detailed understanding of the spatiotemporal changes and climate driving factors affecting vegetation in Guangdong Province.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 14","pages":"13927 - 13946"},"PeriodicalIF":3.4,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13762-025-06527-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0