Environmental Science and Pollution Research最新文献

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Climatic risk of drift occurrence in pesticide applications in Brazil 巴西农药应用中发生漂变的气候风险。
IF 5.8 3区 环境科学与生态学
Environmental Science and Pollution Research Pub Date : 2026-04-10 DOI: 10.1007/s11356-026-37615-0
Julio Roberto Pellenz, Sidinei Zwick Radons, Aline Ulzefer Henck, Patrícia Pivetta, Letícia Welter
{"title":"Climatic risk of drift occurrence in pesticide applications in Brazil","authors":"Julio Roberto Pellenz,&nbsp;Sidinei Zwick Radons,&nbsp;Aline Ulzefer Henck,&nbsp;Patrícia Pivetta,&nbsp;Letícia Welter","doi":"10.1007/s11356-026-37615-0","DOIUrl":"10.1007/s11356-026-37615-0","url":null,"abstract":"<div><p>Brazil is the country with the highest consumption of pesticides in the world, with a high potential for causing environmental and economic damage. Spray drift is one of the main causes of environmental contamination by pesticides and can be intensified by adverse weather conditions. Based on favorable ranges of air temperature, relative humidity and wind speed, it is possible to estimate the time available for pesticide application, with a view to optimizing application efficiency and equipment use, as well as reducing the environmental impacts generated by spray drift. Meteorological data was obtained from the National Institute of Meteorology from all the automatic weather stations in Brazil, from which the risk of spray drift occurring in each location was estimated, as well as the influence of each meteorological factor on the composition of this risk. The risk values were grouped by Brazilian region, from which boxplot graphs were drawn up to check their monthly and hourly variation. The region with the highest average risk of drift was the North, while the South had the lowest rate. The monthly risk was highest in August and September in the Central-West region. In the hourly analysis, the highest risk occurred at 14:00 and 15:00 (UTC -3) in all regions. The meteorological elements with the greatest influence on risk were high temperatures in the North, low relative humidity in the Northeast, Midwest and Southeast, and high wind speeds in the South.</p></div>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":"33 14","pages":"6689 - 6698"},"PeriodicalIF":5.8,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147653563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Performance, phase composition, and life cycle assessment of marble waste-infused Portland and alkali-activated cements and mortars: A comparative analysis and perspective 大理石废物注入波特兰和碱活化水泥和砂浆的性能、相组成和生命周期评价:比较分析和观点。
IF 5.8 3区 环境科学与生态学
Environmental Science and Pollution Research Pub Date : 2026-04-09 DOI: 10.1007/s11356-026-37729-5
Amira A. Shereiqi, Khalifa Al-Jabri, Mohammed S. Meddah, Kazi Md Abu Sohel, Hamdy A. Abdel-Gawwad
{"title":"Performance, phase composition, and life cycle assessment of marble waste-infused Portland and alkali-activated cements and mortars: A comparative analysis and perspective","authors":"Amira A. Shereiqi,&nbsp;Khalifa Al-Jabri,&nbsp;Mohammed S. Meddah,&nbsp;Kazi Md Abu Sohel,&nbsp;Hamdy A. Abdel-Gawwad","doi":"10.1007/s11356-026-37729-5","DOIUrl":"10.1007/s11356-026-37729-5","url":null,"abstract":"<div><p>While extensive research has explored the macro-scale effects of marble waste powder (MP) on Portland cement (OPC) mortar and concrete, a significant knowledge gap persists regarding its impact on both the macro- and micro-structural properties of OPC and alkali-activated materials (AAMs). This state-of-the-art review aims to address this gap by providing a comprehensive comparative analysis of MP's influence on the fresh and hardened properties, as well as the phase composition of OPC and AAM pastes and mortars. Additionally, the paper delves into the life cycle assessment and processing costs of OPC-MP and AAMs-MP systems. The limitations of this study and future directions for MP applications in various binding systems are discussed. Generally, replacing OPC with MP decreases mechanical performance and slows the hydration rate due to cement dilution. However, the performance of MP-AAM is primarily influenced by the type and dosage of the alkali activator. MP enhances the performance of AAMs in sodium silicate-activated systems, whereas it negatively affects sodium hydroxide and sodium carbonate-activated systems. In OPC systems, MP primarily acts as a filler material; nevertheless, it contributes to the formation of monocarboaluminate binder. In contrast, in alkali-activated systems, the chemical reaction mechanism of MP predominates over its physical effects. This paper serves as a valuable resource for researchers and practitioners, offering insights into the in-depth reaction mechanisms of MP within both OPC and AAMs systems.</p></div>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":"33 14","pages":"6433 - 6456"},"PeriodicalIF":5.8,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11356-026-37729-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147637557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Correction to: Current and emerging strategies for organophosphate decontamination: special focus on hyperstable enzymes. 更正:当前和新兴的有机磷净化策略:特别关注超稳定酶。
IF 5.8 3区 环境科学与生态学
Environmental Science and Pollution Research Pub Date : 2026-04-09 DOI: 10.1007/s11356-025-36226-5
Pauline Jacquet, David Daudé, Janek Bzdrenga, Patrick Masson, Mikael Elias, Eric Chabrière
{"title":"Correction to: Current and emerging strategies for organophosphate decontamination: special focus on hyperstable enzymes.","authors":"Pauline Jacquet, David Daudé, Janek Bzdrenga, Patrick Masson, Mikael Elias, Eric Chabrière","doi":"10.1007/s11356-025-36226-5","DOIUrl":"https://doi.org/10.1007/s11356-025-36226-5","url":null,"abstract":"","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147637514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Pilot-scale evaluation of native plant–based constructed wetland performance in a cold climate 寒冷气候下原生植物人工湿地性能的中试评价。
IF 5.8 3区 环境科学与生态学
Environmental Science and Pollution Research Pub Date : 2026-04-08 DOI: 10.1007/s11356-026-37706-y
Adrian L. D. Paul, Alexandre Licinio, Marie-Christine Simard, Roberta D’Camp, Michel Labrecque
{"title":"Pilot-scale evaluation of native plant–based constructed wetland performance in a cold climate","authors":"Adrian L. D. Paul,&nbsp;Alexandre Licinio,&nbsp;Marie-Christine Simard,&nbsp;Roberta D’Camp,&nbsp;Michel Labrecque","doi":"10.1007/s11356-026-37706-y","DOIUrl":"10.1007/s11356-026-37706-y","url":null,"abstract":"<div><p>Global demand for aluminium continues to rise, generating bauxite tailings that release hyperalkaline leachates enriched in metals and metalloids. These leachates accumulate in retention basins and pose environmental risks, while treatment is particularly challenging in cold climates. A passive, nature-based treatment approach for bauxite residue leachate in a humid continental climate was evaluated using locally available substrates and native plants. In an 8-week controlled microcosm experiment, sewage sludge–amended systems planted with <i>Calamagrostis canadensis</i>, <i>Scirpus cyperinus</i>, <i>Salix nigra</i>, or <i>Typha latifolia</i> were irrigated with leachate applied as undiluted (pH 11.5), diluted 1:1 (v/v) with tap water or acidified to pH 10.0. Across measured performance metrics, <i>T. latifolia</i> showed the strongest overall response: aerial biomass did not differ significantly among leachate treatments (38.6–49.1 g DW; − 16% to + 6.5% vs control) and the greatest cumulative leachate volume was processed (37.6–42.4 L microcosm⁻<sup>1</sup>), exceeding unplanted microcosms (24.5–25.2 L) and other planted species. Despite higher hydraulic loading, lower pH at harvest was observed in <i>T. latifolia</i> and <i>S. cyperinus</i> microcosms than in unplanted controls (~ 0.1–0.35 units), with pH attenuation driven primarily by the substrate. Similarly, arsenic and fluoride retention was largely substrate-controlled, while plant presence provided additional treatment benefits via rhizosphere processes and increased leachate throughput: relative to unplanted microcosms, retained arsenic increased by ~ 20–110% and fluoride removal by ~ 22–74%, with the largest gains observed for <i>T. latifolia</i> and <i>S. cyperinus</i>. Overall, alkalinity attenuation and contaminant immobilisation were achieved under cold-climate conditions through a low-input plant–substrate system, supporting a cost-effective, scalable, and locally sourced passive treatment option for bauxite-residue leachates.</p></div>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":"33 14","pages":"6678 - 6688"},"PeriodicalIF":5.8,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147631892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Forecasting greenhouse gas emissions in South Asia: a time series analysis using ARIMA models (1975–2030) 南亚温室气体排放预测:使用ARIMA模型的时间序列分析(1975-2030)。
IF 5.8 3区 环境科学与生态学
Environmental Science and Pollution Research Pub Date : 2026-04-07 DOI: 10.1007/s11356-026-37719-7
Abdul Hasib Mollah, K.M. Rahmatullah Rahat, Md. Saikat Hossen, Masuma Wahab, Md. Tanvir Ahmed
{"title":"Forecasting greenhouse gas emissions in South Asia: a time series analysis using ARIMA models (1975–2030)","authors":"Abdul Hasib Mollah,&nbsp;K.M. Rahmatullah Rahat,&nbsp;Md. Saikat Hossen,&nbsp;Masuma Wahab,&nbsp;Md. Tanvir Ahmed","doi":"10.1007/s11356-026-37719-7","DOIUrl":"10.1007/s11356-026-37719-7","url":null,"abstract":"<div><p>Based on past data from 1975 to 2023, this paper forecasts South Asia’s greenhouse gas (GHG) emissions through 2030 using the Autoregressive Integrated Moving Average (ARIMA) model. The forecasts indicate a sustained rise in emissions across most South Asian nations, with India experiencing the most significant absolute increase, reaching approximately 4610 MtCO₂ by 2030. Bangladesh and Pakistan are expected to experience considerable growth (308.4 and 602.3 MtCO₂, respectively). In contrast, Afghanistan’s emissions are projected to remain below 30 MtCO₂ with minor fluctuations, while smaller nations such as Bhutan and the Maldives may see gradual increases, reflecting developmental pressures. This research addresses a significant deficiency in the current literature by offering a region-specific and comparative emissions analysis. Beyond forecasting, the findings offer a foundation for data-driven policy formulation, highlighting the urgent need for national and regional decarbonization strategies, sector-specific interventions, and enhanced cooperation among South Asian countries. The study underscores the importance of integrating climate action into national development planning, promoting regional technology-sharing initiatives, and strengthening adaptation efforts in vulnerable economies to meet the Paris Agreement goals and ensure sustainable development.</p></div>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":"33 14","pages":"6610 - 6622"},"PeriodicalIF":5.8,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147631912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Environmental impact and cost of bio-based hydrophobic multifunctional coatings 生物基疏水性多功能涂料的环境影响和成本。
IF 5.8 3区 环境科学与生态学
Environmental Science and Pollution Research Pub Date : 2026-04-07 DOI: 10.1007/s11356-026-37701-3
Pooja Yadav, Paula Nousiainen, Muhammad Farooq
{"title":"Environmental impact and cost of bio-based hydrophobic multifunctional coatings","authors":"Pooja Yadav,&nbsp;Paula Nousiainen,&nbsp;Muhammad Farooq","doi":"10.1007/s11356-026-37701-3","DOIUrl":"10.1007/s11356-026-37701-3","url":null,"abstract":"<div><p>The circular bioeconomy supports climate action by promoting the use of renewable materials in sustainable production. In this study, bio-based betulin, lignin, and suberin were used as raw materials for producing the multifunctional hydrophobic coatings. Life cycle assessment (LCA) was used to study the environmental impact of these protective coatings from cradle to gate. The foreground data were collected from laboratory experiments and literature, while background data were sourced from the ecoinvent 3.10 database. The functional unit (FU) used was coating production and application on 1 m<sup>2</sup> of fabric. The environmental impacts and cost were evaluated using Recipe (H) 2016 midpoint method in SimaPro 9.6. The results indicated that per FU, the global warming potential (GWP) was 2.92 kg CO<sub>2</sub> eq. for suberin coating, 2.39 kg CO<sub>2</sub> eq. for betulin coating, and 2.01 kg CO<sub>2</sub> eq. for lignin coating. The sensitivity analysis was conducted and indicated that replacing ethanol with bioethanol reduced the burden on GWP and fossil resource scarcity (FRS) but increased the burden on land use (LU), terrestrial ecotoxicity (TE), and human non-carcinogenic toxicity (HNCT). Additionally, the source of energy in the process, particularly the participation of nuclear and bio-based electricity, was found to influence the results on GWP, IR, and LU impact categories. The recycling rate of solvents and the production process of feedstocks (suberin, betulin, and lignin) significantly impacted the results.</p></div>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":"33 14","pages":"6657 - 6677"},"PeriodicalIF":5.8,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11356-026-37701-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147626578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Performance research of the natural sand grains for adsorption enrichment and removal of Cd(II) from aqueous solution 天然砂粒对Cd(II)的吸附富集去除性能研究。
IF 5.8 3区 环境科学与生态学
Environmental Science and Pollution Research Pub Date : 2026-04-07 DOI: 10.1007/s11356-026-37696-x
Jiaxiang Qi, Yixin Sui, Shuaibing Gao, Linlin Chai, Shawket Abliz
{"title":"Performance research of the natural sand grains for adsorption enrichment and removal of Cd(II) from aqueous solution","authors":"Jiaxiang Qi,&nbsp;Yixin Sui,&nbsp;Shuaibing Gao,&nbsp;Linlin Chai,&nbsp;Shawket Abliz","doi":"10.1007/s11356-026-37696-x","DOIUrl":"10.1007/s11356-026-37696-x","url":null,"abstract":"<div><p>This study investigates the performance of natural sand particles from the Taklamakan Desert as a low-cost adsorbent for removing Cd(II) from water. SEM, FTIR, and XRD characterization revealed a multi-porous silica structure with abundant Si–OH and Si–O-Si groups. Using a microcolumn coupled with FAAS under optimal conditions (pH 5.5–6.5, flow rate 3 mL·min<sup>−1</sup>, room temperature), the sand particles exhibited a dynamic saturation adsorption capacity of 10.2 mg·g<sup>−1</sup> for Cd(II) ions, achieving an adsorption rate of 90.2%. Equilibrium data conformed to the Freundlich model (<i>R</i><sup>2</sup> = 0.938), indicating heterogeneous multilayer adsorption. Kinetic data followed pseudo-second-order kinetics (<i>R</i><sup>2</sup> = 0.966), revealing a chemically controlled mechanism. Thermodynamic analysis confirmed the process as a spontaneous, endothermic reaction. When using 0.5 mol·L⁻<sup>1</sup> hydrochloric acid at a flow rate of 1.5 mL·min⁻<sup>1</sup>, the desorption efficiency reached 98.3%, and no obvious loss of adsorption capacity was observed after regeneration of the adsorbent. This demonstrates that natural sand particles represent a sustainable and highly efficient adsorbent for Cd(II) remediation.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":"33 14","pages":"6623 - 6634"},"PeriodicalIF":5.8,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147626526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Advanced adsorbent materials for the removal of PFAS from water: challenges, progress, and future directions. 用于去除水中PFAS的高级吸附材料:挑战、进展和未来方向。
IF 5.8 3区 环境科学与生态学
Environmental Science and Pollution Research Pub Date : 2026-04-07 DOI: 10.1007/s11356-026-37723-x
Durairaj Sivakumar, Thurvas Renganathan Neelakantan, Durairaj Shankar, Al Samsi Yahya Obaid, Raju Anand, Marimuthu Jothibass, Kannan Komala Devi, Al Balushi Rawdha Abu Bakar
{"title":"Advanced adsorbent materials for the removal of PFAS from water: challenges, progress, and future directions.","authors":"Durairaj Sivakumar, Thurvas Renganathan Neelakantan, Durairaj Shankar, Al Samsi Yahya Obaid, Raju Anand, Marimuthu Jothibass, Kannan Komala Devi, Al Balushi Rawdha Abu Bakar","doi":"10.1007/s11356-026-37723-x","DOIUrl":"https://doi.org/10.1007/s11356-026-37723-x","url":null,"abstract":"<p><p>Per- and polyfluoroalkyl substances (PFAS) are synthetic chemicals widely used for their resistance to heat, water, and oil, which also confers exceptional environmental persistence and promotes accumulation across ecosystems and organisms. Strong carbon-fluorine bonding and extensive industrial usage contribute toward widespread contamination affecting water quality, food safety, and soil integrity across global environments. PFAS enter the environment through industrial discharges, wastewater treatment plants, landfills, firefighting foams, and consumer products such as non-stick cookware, water-repellent textiles, food packaging, and personal care items. They contaminate water, soil, and air and may enter agricultural systems, thereby influencing crop quality and food safety. Human exposure occurs primarily through consumption of contaminated drinking water and food, with additional exposure via inhalation, skin contact, and ingestion of dust. Freshwater organisms frequently exhibit higher PFAS concentrations than marine species, increasing dietary exposure risks. PFAS exposure has been associated with immune suppression, endocrine disruption, liver damage, reproductive effects, elevated cholesterol levels, and cancer. Ecologically, PFAS alter microbial community structure and accumulate within wildlife and food webs. Conventional water treatment processes show minimal effectiveness against PFAS, intensifying research on adsorbent- and hybrid treatment-based remediation under the pollutant toxic ions and molecules research theme. This review emphasizes progress with activated carbon (AC), ion exchange resins, mineral sorbents, membranes, and destruction technologies, as well as emerging materials such as metal-organic frameworks, covalent organic frameworks, and polymeric or nanocomposite sorbents, while highlighting performance constraints, regeneration challenges, operational limitations, and critical gaps for scalable and sustainable PFAS management.</p>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147626541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
The nitrogen isotopic composition of biotic components in Northern Biscayne Bay and Associated Waterways, South Florida USA: implications for sources of nitrogen 美国南佛罗里达州北比斯坎湾及相关水道生物组分的氮同位素组成:对氮来源的影响。
IF 5.8 3区 环境科学与生态学
Environmental Science and Pollution Research Pub Date : 2026-04-07 DOI: 10.1007/s11356-026-37702-2
Peter K. Swart, Amel Saied, Sean P. Ahearn, Tiffany Troxler, Maribeth Gidley, Christopher Sinigalliano, Aliza Karim, Elizabeth Kelly, Rachel Silverstein
{"title":"The nitrogen isotopic composition of biotic components in Northern Biscayne Bay and Associated Waterways, South Florida USA: implications for sources of nitrogen","authors":"Peter K. Swart,&nbsp;Amel Saied,&nbsp;Sean P. Ahearn,&nbsp;Tiffany Troxler,&nbsp;Maribeth Gidley,&nbsp;Christopher Sinigalliano,&nbsp;Aliza Karim,&nbsp;Elizabeth Kelly,&nbsp;Rachel Silverstein","doi":"10.1007/s11356-026-37702-2","DOIUrl":"10.1007/s11356-026-37702-2","url":null,"abstract":"<div><p>Over an approximate twelve-month period, between June 2021 and June 2022, the δ<sup>15</sup>N values of aquatic vegetation and sediments and the δ<sup>18</sup>O and δ<sup>15</sup>N values of the NO<sub>3</sub><sup>−</sup> in water samples were analyzed in order to understand the sources and processes affecting nitrogen entering the northern portion of Biscayne Bay, an urban area located to the west of Miami, in the southern United States. Samples were collected from 22 sites, primarily located in waterways feeding into the Bay (Miami River, Little River, Biscayne Canal, and Snake Creek). Additional samples were also collected in the central region of Biscayne Bay, around Virginia Key, Key Biscayne, Coconut Grove, and Matheson Hammock. The highest δ<sup>15</sup>N values were found in algae and plants collected from the Biscayne Canal, Little River, and Miami River, inland sites heavily influenced by land-based source of pollution such as storm water, septic tanks, and industrial runoff, while lower values were measured at the central Biscayne Bay sites. The Little River sites showed a strong seasonality with δ<sup>15</sup>N values of the vegetation ranging from + 8‰ in the wet season to over + 13‰ at the start of the dry season, while the Miami River and Biscayne Canal sites exhibited δ<sup>15</sup>N values of between + 9 to + 13‰ throughout the year. The elevated δ<sup>15</sup>N values are associated with the input of anthropogenic waste, presumed to originate from septic tanks along the canals. Elevation of δ<sup>15</sup>N values in excess of typical values found in humans is driven by fractionation of nitrogen during assimilation, nitrification, denitrification, volatilization of NH<sub>4</sub><sup>+</sup> and anaerobic ammonium oxidation in septic tanks with clogged drain fields. We propose that dissolved inorganic nitrogen, derived from septic tanks with elevated δ<sup>15</sup>N values, mixes with nitrogen derived from the natural environment as well as that sourced from artificial fertilizers (both with lower δ<sup>15</sup>N values) to produce pools of nitrogen with intermediate δ<sup>15</sup>N values. These are then further enriched in <sup>15</sup>N during the process of assimilation and nitrification which fractionates the δ<sup>15</sup>N value of the residual NO<sub>3</sub><sup>−</sup>. At all locations there is close to a 1:1 relationship between the δ<sup>15</sup>N and δ<sup>18</sup>Ο values of the nitrate, expected as a result of fractionation during assimilation. Mixing between natural sources of nitrogen, or nitrogen arising from anthropogenic sources or other animal waste and nitrogen arising from contamination by fertilizer produces a positive association between NO<sub>3</sub><sup>−</sup> concentration and δ<sup>15</sup>N<sub>NO3-</sub> values at some locations.</p></div>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":"33 14","pages":"6635 - 6656"},"PeriodicalIF":5.8,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11356-026-37702-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147626651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Lithium in the Anthropocene: innovative perspectives on environmental contamination, bioavailability, health impacts, and remediation strategies. 人类世中的锂:环境污染、生物利用度、健康影响和修复策略的创新视角。
IF 5.8 3区 环境科学与生态学
Environmental Science and Pollution Research Pub Date : 2026-04-06 DOI: 10.1007/s11356-026-37690-3
Polinki Venkata Sai Jaitesh
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