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Hydrochemical Evaluation of Groundwater Quality and Human Health Risk Assessment of Fluoride and Nitrate: A Case Study of Pratapgarh District UP, India
IF 3.8 4区 环境科学与生态学
Water, Air, & Soil Pollution Pub Date : 2025-03-06 DOI: 10.1007/s11270-025-07806-5
Sandhya Maurya, Ashok B. More, Garima Gupta, Abhishek Saxena, Anjali Singh
{"title":"Hydrochemical Evaluation of Groundwater Quality and Human Health Risk Assessment of Fluoride and Nitrate: A Case Study of Pratapgarh District UP, India","authors":"Sandhya Maurya,&nbsp;Ashok B. More,&nbsp;Garima Gupta,&nbsp;Abhishek Saxena,&nbsp;Anjali Singh","doi":"10.1007/s11270-025-07806-5","DOIUrl":"10.1007/s11270-025-07806-5","url":null,"abstract":"<div><p>Various of factors have contributed to groundwater contamination in the Indo-Gangetic alluvium, including mineral deposits, ion exchange, precipitation, overexploitation, and dissolution. In the current study, 40 different groundwater samples were sampled from different locations of Sadar block Pratapgarh district, Uttar Pradesh and various physicochemical parameters were evaluated. This research aims to investigate the groundwater quality associated with human health risks in all seasons (pre-monsoon, monsoon, and post-monsoon), analyze the reasons for seasonal differences, and identify areas with severe pollution. The water quality in PrM is 48%, in PoM it is 50%, and 48% of the sampling sites are categorized as highly polluted due to high THI value. THI values depict the highest F<sup>−</sup> and NO<sub>3</sub><sup>−</sup> contamination levels at PG 13 and P33 (THI &gt; 5.0) in the PrM. After a health risk assessment, it was found that children and females are highly susceptible to health risks. The strongest correlation was found between TDS, EC, and fluoride (r = 0.9). This study would be extremely helpful to aid officials in identifying alternative drinking water resources in affected areas. The Piper plot revealed the presence of Cl<sup>−</sup> and some SO<sub>4</sub><sup>−</sup> type waters, which indicates strong acid dominance over weak acids, and the cation is dominated by Ca<sup>2+</sup> and some of the Mg<sup>2+</sup> type waters, indicating alkaline earth metal is dominating over alkali metals. Na–K-SO<sub>4</sub>-Cl and Ca-Mg-SO<sub>4</sub>-Cl mixed water type (23% Prm, PoM, and MoN) facies were detected. According to Gibbs’s plot, most of the samples with \"evaporation dominance\" and the rest are under “rock-water interaction”.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553726","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
Removal of Fluoride by Effective Utilization of Activated Red Mud-Bentonite as a Reactive Material for Permeable Reactive Barrier
IF 3.8 4区 环境科学与生态学
Water, Air, & Soil Pollution Pub Date : 2025-03-06 DOI: 10.1007/s11270-025-07838-x
Sathish Nagaraj, Uma Shankar Masilamani
{"title":"Removal of Fluoride by Effective Utilization of Activated Red Mud-Bentonite as a Reactive Material for Permeable Reactive Barrier","authors":"Sathish Nagaraj,&nbsp;Uma Shankar Masilamani","doi":"10.1007/s11270-025-07838-x","DOIUrl":"10.1007/s11270-025-07838-x","url":null,"abstract":"<div><p>The direct consumption of fluoride-contaminated groundwater is increasing day by day without our knowledge escalating health risks. Therefore, it is imperative to carry out in-situ fluoride treatment where fluoride exposure is higher, rather than confining to small or large-scale industries. This necessitates of choosing appropriate purification methods and materials for effective treatment. The main objective of this research is to determine the adsorption/removal capacity of different proportions of activated red mud and bentonite mixture (RM:BEN) to remove fluoride from water. The characteristics of adsorption materials such as Red Mud (RM) and Bentonite (BEN) have been studied using Field Emission Scanning Electron Microscopy (FE-SEM), Energy Dispersive X-ray Spectroscopy (EDS), and X-ray diffractometer (XRD). These techniques reveal the morphological changes and a loss of crystalline nature, indicating the adsorption of fluoride on the RM:BEN mixture. Different mix proportions of activated red mud and bentonite such as 95%:05% (Mix-A), 90%:10% (Mix-B), 85%:15% (Mix-C), 80%:20% (Mix-D) was analysed to determine its fluoride adsorption characteristics. The results revealed that RM:BEN (Mix-C) mixture demonstrated a higher adsorption capacity of 2.65 mg/g than other mixtures. The adsorption isotherm and kinetics model, fitting the Langmuir and Pseudo-first-order models, suggest that monolayer physical adsorption occurs during fluoride removal. In-situ experiments showed that the maximum removal efficacy of RM:BEN (Mix-C) reached 89.52% on the 7th day under lateral flow conditions and 93.81% on the 10th day under longitudinal flow conditions.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553948","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
Impact of Varied Distillery Wastewaters on Yield Attributes, Soil Properties, and Heavy Metal Accumulation in Pea (Pisum sativum L. var. Rachna) 不同蒸馏废水对豌豆(Pisum sativum L. var. Rachna)产量属性、土壤特性和重金属积累的影响
IF 3.8 4区 环境科学与生态学
Water, Air, & Soil Pollution Pub Date : 2025-03-06 DOI: 10.1007/s11270-025-07832-3
Kirti Pandita, Anamika Sharma, Piyush Malaviya
{"title":"Impact of Varied Distillery Wastewaters on Yield Attributes, Soil Properties, and Heavy Metal Accumulation in Pea (Pisum sativum L. var. Rachna)","authors":"Kirti Pandita,&nbsp;Anamika Sharma,&nbsp;Piyush Malaviya","doi":"10.1007/s11270-025-07832-3","DOIUrl":"10.1007/s11270-025-07832-3","url":null,"abstract":"<div><p>The study evaluates the suitability of untreated distillery wastewater, and wastewater obtained after primary treatment and secondary treatment stages on key pod characteristics and yield attributes of <i>Pisum sativum</i> L. var. Rachna. Four concentrations of the three wastewater types viz., 25%, 50%, 75%, and 100% were used for the irrigation of <i>P</i>. <i>sativum</i> L. at regular intervals upto 120 days and various yield parameters along with iron and zinc dynamics in various plant parts were examined. The study’s findings showed that pod characteristics such as pods per plant (6.7), pod length (6.17 cm), total weight of pod (1.57 g), number of seeds per plant (27), and yield attributes, e.g., economic yield (7.12 g), stover yield (2.70 g), harvest index (83.61%), and seed output (31.26) were maximum at 50% concentration of secondary treated wastewater (ST<sub>50</sub>). The minimum value of pods per plant (3.6 cm), pod length (4 cm), total weight of pod (0.8 g), number of seeds per plant (14.6), economic yield (2.75 g), stover yield (0.54 g), harvest index (67.824%), and seed output (11.0) were observed at 100% concentration of untreated wastewater (UT<sub>100</sub>). Maximum accumulation of iron and zinc in various parts of the plant was observed at UT<sub>100</sub>, while minimum at 25% concentration of secondary treated wastewater (ST<sub>25</sub>) besides the control (tap water). Similar trends were observed for the enrichment factor, translocation factor, bioaccumulation factor, and mobility ratio.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553946","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
Efficient Degradation of Organic Pollutants by Activation of Sodium Percarbonate with CuFeS2 Catalytic Membrane
IF 3.8 4区 环境科学与生态学
Water, Air, & Soil Pollution Pub Date : 2025-03-05 DOI: 10.1007/s11270-025-07847-w
Yawei Shi, Yumei Xing, Qian Chang, Ya Sun, Guanghui Ding
{"title":"Efficient Degradation of Organic Pollutants by Activation of Sodium Percarbonate with CuFeS2 Catalytic Membrane","authors":"Yawei Shi,&nbsp;Yumei Xing,&nbsp;Qian Chang,&nbsp;Ya Sun,&nbsp;Guanghui Ding","doi":"10.1007/s11270-025-07847-w","DOIUrl":"10.1007/s11270-025-07847-w","url":null,"abstract":"<div><p>By constructing catalytic membranes, the tedious post-treatment catalyst separation during the utilization of powdered catalysts can be avoided. In this work, a copper ferrous disulfide catalytic membrane (CuFeS<sub>2</sub>-M) prepared by in-situ loading CuFeS<sub>2</sub> on a ceramic tubular membrane was employed to activate sodium percarbonate (SPC) towards the degradation of organic dye pollutants. Under the optimum conditions (SPC dosage of 8.0 mM and flow rate of 1.0 mL/min), the removal efficiency of 10 mg/L acid orange 7 (AO7) achieved 97.93%, and several other organic dyes were also efficiently removed by 75.23–95.96%. The coexisting inorganic anions and humic acid showed little detrimental effect on the removal of AO7. Reusability tests showed that CuFeS<sub>2</sub>-M could effectively catalyze the degradation of AO7, removing around 7 mg of AO7 during the operation time of 12 h from both deionized water and synthetic wastewater. Furthermore, the degradation mechanism analysis revealed that CO<sub>3</sub><sup>•−</sup> was the main reactive oxidative species. Finally, the degradation pathway of AO7 was investigated, and the environmental toxicity effects of the degradation products were also predicted. Therefore, the CuFeS<sub>2</sub>-M/SPC system exhibited prospective application for the oxidative removal of AO7 and other organic dyes from water.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553673","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
Assessing the Contaminat Plume of a Coastal Cemitery in Sandy Soils
IF 3.8 4区 环境科学与生态学
Water, Air, & Soil Pollution Pub Date : 2025-03-05 DOI: 10.1007/s11270-025-07828-z
Gabriel D’ávila Fernandes, Willian Fernando de Borba, Pedro Daniel da Cunha Kemerich, Éricklis Edson Boito de Souza, Filipi Godinho Veiga, Lenon Mello Ilha, Daniel Gustavo Allasia Piccilli
{"title":"Assessing the Contaminat Plume of a Coastal Cemitery in Sandy Soils","authors":"Gabriel D’ávila Fernandes,&nbsp;Willian Fernando de Borba,&nbsp;Pedro Daniel da Cunha Kemerich,&nbsp;Éricklis Edson Boito de Souza,&nbsp;Filipi Godinho Veiga,&nbsp;Lenon Mello Ilha,&nbsp;Daniel Gustavo Allasia Piccilli","doi":"10.1007/s11270-025-07828-z","DOIUrl":"10.1007/s11270-025-07828-z","url":null,"abstract":"<div><p>Precise delineation of contaminant plume distribution is essential for effective remediation of contaminated areas in and around unmonitored and not planned cemeteries. In these areas, the necrochorume is the primary source of contamination that reaches groundwater, putting the environment and the population residing around at risk. This contamination is bigger in sandy soils, as, in general, sandy soils are propitious to leachates migration in depth, promoting subsoil and groundwater contamination. Therefore, the present work identified contamination zones in an area occupied by a cemetery located in soils with high sand content, high permeability coefficient, and saturated hydraulic conductivity close to the city of Tramandaí, in the southernmost Brazilian state of Rio Grande do Sul. The results identified concentrations of organic matter and Biochemical Oxygen Demand above the maximum allowed values, clearly pointing to contamination of the samples collected. By using geophysical technique, the bidimensional profiles of apparent resistivity were obtained permitting the assessment and identification of the contaminant plumes. The results point to the necessity to improve burial practices below ground level, especially in areas where the natural characteristics favor the contamination of underground springs. In view of this, the importance of monitoring in these areas stands out as they can alter the quality of the environment and become a public health problem for the local and regional community.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554061","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
Interactions between extracellular polymeric substances and engineered nanoparticles in aquatic systems and their environmental effects: A comprehensive review
IF 8.131 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2025-03-05 DOI: 10.1039/d5en00073d
Xuan Gao, Haozhe Zhang, Xiaonan Zhang, Chaozhi Zhang, Chenxi Mao, Shengdao Shan, Fang Wei, Monika Mortimer, Jing Fang
{"title":"Interactions between extracellular polymeric substances and engineered nanoparticles in aquatic systems and their environmental effects: A comprehensive review","authors":"Xuan Gao, Haozhe Zhang, Xiaonan Zhang, Chaozhi Zhang, Chenxi Mao, Shengdao Shan, Fang Wei, Monika Mortimer, Jing Fang","doi":"10.1039/d5en00073d","DOIUrl":"https://doi.org/10.1039/d5en00073d","url":null,"abstract":"Extracellular polymeric substances (EPS), which are secreted during the growth and metabolism of microorganisms, can be adsorbed onto the surface of nanoparticles (NPs) to form an EPS corona. The presence of EPS corona can significantly alter the environmental processes and the toxicity of NPs in aquatic systems. Firstly, this review thoroughly summarized the interactions between EPS and engineered NPs, including the major interaction mechanisms and their corresponding representative interaction modes, i.e., electrostatic attraction/repulsion, hydrophobic interactions, chemical bonding, hydrogen bonding, and cation bridging. Classical kinetic and thermodynamic models were currently suitable models for describing the adsorption of EPS on most NPs. Next, the main environmental processes of NPs influenced by EPS, including their dispersion/aggregation, chemical transformation, and sorption capability, were discussed. Due to the alteration of the above environmental processes of NPs, EPS can therefore have an impact on the toxicity effects of NPs on aquatic organisms. The influencing mechanisms of two types of EPS (soluble EPS, S-EPS and bound EPS, B-EPS) on the toxicity of NPs were separately summarized. It is concluded that two types of EPS played their respective roles in affecting the toxicity of NPs. Finally, the subsequent change of microbial EPS secretion influenced by NPs was especially addressed here. As an external stress, NPs exposure has been proven to affect the amount and composition of EPS secretion. However, the mechanism of EPS-NPs interactions needs further investigations. The vital role of EPS on the transfer of NPs through trophic levels in aquatic systems is suggested to examine under the long-term exposure. Moreover, the correlation between the changes in EPS secretion and NPs toxicity is still unknown. We suggested that advanced in-situ analytical techniques and molecular biological technology were applied to investigate the effect of EPS on the environmental behavior of NPs. The information provided in this study will enhance our understanding of the crucial role of EPS in determining the biological effects of NPs and contribute to a better assessment of the ecological risks of NPs in aquatic systems.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"16 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143546016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Adsorptive Performance of High Surface Area Date Palm Bunch Activated Carbon Towards Methyl Violet and Fuchsin Basic Dyes Removal: Thermochemical Activation And Statistical Optimization
IF 3.8 4区 环境科学与生态学
Water, Air, & Soil Pollution Pub Date : 2025-03-05 DOI: 10.1007/s11270-025-07834-1
Muna Sarhan Sando, Ahlam M. Farhan, Ahmad Hapiz, Elmira Kashi, Salis A. Musa, Ali H. Jawad
{"title":"Adsorptive Performance of High Surface Area Date Palm Bunch Activated Carbon Towards Methyl Violet and Fuchsin Basic Dyes Removal: Thermochemical Activation And Statistical Optimization","authors":"Muna Sarhan Sando,&nbsp;Ahlam M. Farhan,&nbsp;Ahmad Hapiz,&nbsp;Elmira Kashi,&nbsp;Salis A. Musa,&nbsp;Ali H. Jawad","doi":"10.1007/s11270-025-07834-1","DOIUrl":"10.1007/s11270-025-07834-1","url":null,"abstract":"<div><p>Herein, date palm (<i>Phoenix dactylifera</i>) bunch (DPB) waste was transformed into activated carbon (DPAC) adsorbent by using microwave-induced ZnCl<sub>2</sub> activation for 15 min at a power of 600 W. Several analytical methods were used to explain the physicochemical parameters of DPBAC including XRD, pH<sub>pzc</sub>, BET, SEM–EDX, and FTIR. Afterwards, the adsorptive performance of DPBAC was thoroughly investigated for the removal of two structurally different organic dyes namely methyl violet (MV) and fuchsin basic (FB). The key adsorption parameters, including the dose of DPBAC (<b>A</b>: 0.02–0.06 g), the solution pH (<b>B</b>: 4–10), and the contact time (<b>C</b>: 2–20 min) were statistically optimized using the Box-Behnken design with response surface methodology (RSM-BBD). The Freundlich isotherm model exhibits the best fit for explaining the isotherm data for both the MV and FB dyes, whereas the pseudo-second-order model shows an accurate description of the kinetic data. Thus, DPBAC shows maximum adsorption capacities (<i>q</i><sub><i>max</i></sub>) for319.9 mg/g (MV) and 246.9 mg/g (FB) respectively. The possible DPBAC surfacec interaction with MV and FB dye molecules can be assigned to various pathways including pore filling, electrostatic attraction, π-π stacking, and H-bonding. The finding of this study indicates that date palm bunch can be effectively converted into large surface area activated carbon with the potential application for removal of cationic dyes from wastewater.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554084","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
Soil-adhesive or water repellent properties of the surface of cicada exuviae
IF 2.1 3区 生物学
The Science of Nature Pub Date : 2025-03-04 DOI: 10.1007/s00114-025-01976-2
Jun Murayama, Kazuo Yamazaki, Hiroshi Ogasawara, Hiroshi Moriwaki
{"title":"Soil-adhesive or water repellent properties of the surface of cicada exuviae","authors":"Jun Murayama,&nbsp;Kazuo Yamazaki,&nbsp;Hiroshi Ogasawara,&nbsp;Hiroshi Moriwaki","doi":"10.1007/s00114-025-01976-2","DOIUrl":"10.1007/s00114-025-01976-2","url":null,"abstract":"<div><p>Although the biology of cicadas is generally well known, knowledge about their exuviae is limited. The exuviae of the Kaempfer cicada is covered with soil, but the exuviae of the black giant cicada has almost no soil attached to it. We have focus on the surface structure of cicada exuviae, especially the soil adhesion and water repellency of the exuviae surface. The substance that adheres the soil to the exuviae surface of the Kaempfer cicada was extracted and isolated. We found that mucin contributes to the soil adhesion of the larvae surface of the Kaempfer cicada. The surface of the Kaempfer cicada shell has more hairs than that of the black giant cicada, also contributing to soil adhesion. We also show the abdominal part of the exuviae of both species exhibiting water repellency. The fact that water repellency located around the spiracles suggests that it is a feature that ensures breathing. Interestingly, the structure of this part was similar to that of the surface of a lotus leaf.</p></div>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"112 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Target Fishing and Molecular Docking for Phenanthrene–pyrene Co-degradation of the Niche Effect of Polycyclic Aromatic Hydrocarbons in Reclaimed Water
IF 3.8 4区 环境科学与生态学
Water, Air, & Soil Pollution Pub Date : 2025-03-04 DOI: 10.1007/s11270-025-07802-9
Caiyun Sun, Chunlei Xu, Yu Xia, Mengyuan An, Dazhi Sun, Lili Ma, Shixu Zhang, Yue Ma, Yuhan Zhou, Zihan Hao, Liang Xu
{"title":"Target Fishing and Molecular Docking for Phenanthrene–pyrene Co-degradation of the Niche Effect of Polycyclic Aromatic Hydrocarbons in Reclaimed Water","authors":"Caiyun Sun,&nbsp;Chunlei Xu,&nbsp;Yu Xia,&nbsp;Mengyuan An,&nbsp;Dazhi Sun,&nbsp;Lili Ma,&nbsp;Shixu Zhang,&nbsp;Yue Ma,&nbsp;Yuhan Zhou,&nbsp;Zihan Hao,&nbsp;Liang Xu","doi":"10.1007/s11270-025-07802-9","DOIUrl":"10.1007/s11270-025-07802-9","url":null,"abstract":"<div><p>PAHs pollution is a widespread pollution in river basins and wetland water bodies. A Northeast China chemical industry zone was studied, focusing on reclaimed water and sludge from sewage treatment plants. The pollution levels of 16 polycyclic aromatic hydrocarbons (PAHs) were monitored across three water periods. A model comparing pollution levels with sludge and recycled water aroma indices was established and validated. The model revealed interaction relationships among the 16 PAH pollutants. Analysis of bacterial communities identified the mechanism for combined phenanthrene and pyrene degradation, along with nine key enzymes involved. Population responses to 16 PAH pollution stress were explored, highlighting metabolic differences and functional relationships within eukaryotic and prokaryotic microbial communities. Molecular dynamics simulations identified a key enzyme, uncovering pi–pi T-shaped and pi–alkyl forces in the interaction between pyrene dioxygenase and pyrene.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533003","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
Agency, social networks, and adaptation to environmental change
IF 8.6 1区 环境科学与生态学
Global Environmental Change Pub Date : 2025-03-04 DOI: 10.1016/j.gloenvcha.2025.102983
Michele L Barnes , Sarah Sutcliffe , Innocent Muly , Nyawira Muthiga , Stephen Wanyonyi , Petr Matous , Michael Murunga
{"title":"Agency, social networks, and adaptation to environmental change","authors":"Michele L Barnes ,&nbsp;Sarah Sutcliffe ,&nbsp;Innocent Muly ,&nbsp;Nyawira Muthiga ,&nbsp;Stephen Wanyonyi ,&nbsp;Petr Matous ,&nbsp;Michael Murunga","doi":"10.1016/j.gloenvcha.2025.102983","DOIUrl":"10.1016/j.gloenvcha.2025.102983","url":null,"abstract":"<div><div>Environmental change is escalating across the globe, threatening the livelihoods and wellbeing of millions of people. Substantial effort and resources have been committed at a global scale to support adaptation projects in affected communities to confront these changes. Yet not everyone has equal capabilities to adapt, guide adaptation decisions, and contribute to envisioning alternative futures. Drawing on theories of agency, social networks, and adaptation and employing a unique time-series dataset including 653 individuals across five Kenyan coastal communities, here we examine how agency over adaptation decisions is socially differentiated and the disparities that exist regarding who is able to bolster their level of agency over time. Our results show that involvement in local environmental decision-making processes, where adaptation to environmental change is negotiated, is strongly associated with feelings of effective power. Yet this power is largely concentrated among older individuals, community leaders, those with greater assets, and those with social ties to leaders – pointing to existing social hierarchies and resource differentials that drive adaptation decisions. The only significant predictor of changes in agency over time was network exposure: individuals with direct contact with those who were actively involved in environmental decision-making (individual agency) were likely to become more involved themselves; yet contact with passively involved partners (proxy agency) led to decreases in agency over time. Our results suggest a dynamic ripple effect in agency through social networks, suggesting that social networks can both catalyse and inhibit perceptions of effective power over adaptation decisions through participation in environmental decision-making. Our findings underscore the importance of social networks in enabling and constraining agency, highlight the role of leadership and power dynamics in environmental decision-making and locally led adaptation, and provide a foundation for future research on fostering inclusive and just adaptation.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"92 ","pages":"Article 102983"},"PeriodicalIF":8.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
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