Clean-soil Air Water最新文献

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Reducing Grain Cadmium in Wheat: Synergistic Effects of Compost Co-Applied With Zinc, Manganese, or Phosphorus in Calcareous Soil 降低小麦籽粒镉:钙质土壤中混合施用锌、锰、磷的协同效应
IF 1.4 4区 环境科学与生态学
Clean-soil Air Water Pub Date : 2026-04-03 DOI: 10.1002/clen.70165
Jinhui Zhu, Ye Zheng, Yuhao Zhi, Ziang Guo, Chen Yao, Dan Wang, Hongxia Yang, Xinyu Li, Lianfeng Shen, Xuanzhen Li
{"title":"Reducing Grain Cadmium in Wheat: Synergistic Effects of Compost Co-Applied With Zinc, Manganese, or Phosphorus in Calcareous Soil","authors":"Jinhui Zhu,&nbsp;Ye Zheng,&nbsp;Yuhao Zhi,&nbsp;Ziang Guo,&nbsp;Chen Yao,&nbsp;Dan Wang,&nbsp;Hongxia Yang,&nbsp;Xinyu Li,&nbsp;Lianfeng Shen,&nbsp;Xuanzhen Li","doi":"10.1002/clen.70165","DOIUrl":"10.1002/clen.70165","url":null,"abstract":"<div>\u0000 \u0000 <p>Soil contamination with cadmium (Cd) poses a serious threat to food safety and human health. However, remediating Cd-contaminated calcareous soils remains highly challenging. In this study, fermented cow manure and wheat straw were used as organic amendments (OA), and zinc (Zn), manganese (Mn), and phosphorus (P) were applied as mineral elements. The effects of OA alone (4, 8, and 12 g kg<sup>−1</sup>) and the combined application of OA (8 g kg<sup>−1</sup>) with Zn (0.55 g kg<sup>−1</sup> as ZnCl<sub>2</sub>), Mn (0.1 g kg<sup>−1</sup> as MnCl<sub>2</sub>), or P (0.1 g kg<sup>−1</sup> as KH<sub>2</sub>PO<sub>4</sub>) on Cd accumulation in wheat grown in Cd-contaminated calcareous soil were investigated in a pot experiment. The results showed that the combined application of Zn and OA was the most effective in reducing Cd concentration in the wheat plants, achieving a 31.29%–59.17% decrease in grain, stems, and roots. This effect may be attributed to decreased rhizospheric Cd availability. Additionally, under this treatment, the available Zn concentration in the rhizosphere was significantly lower than in the non‑rhizosphere, suggesting that wheat plants actively immobilized Zn. X-ray diffraction (XRD) analysis further indicated that Zn in the rhizosphere soil was likely transformed into ZnLi<sub>4</sub>P<sub>2</sub> and Zn<sub>3</sub>TeAs<sub>6</sub>Pb<sub>3</sub>O<sub>18</sub>. Collectively, these processes likely contributed to reduced rhizospheric Cd availability and lower Cd accumulation in wheat plants. Therefore, the combined application of Zn and OA represents a promising strategy for mitigating Cd contamination in wheat grown in Cd-contaminated calcareous soils.</p>\u0000 </div>","PeriodicalId":10306,"journal":{"name":"Clean-soil Air Water","volume":"54 4","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683005","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
Pollution Characteristics and Risk Assessment of Heavy Metals in Agricultural Soils Across Different Regions of China 中国不同区域农业土壤重金属污染特征及风险评价
IF 1.4 4区 环境科学与生态学
Clean-soil Air Water Pub Date : 2026-04-03 DOI: 10.1002/clen.70168
Yukun Jiang, Qing Luo, Wenju Dai, Huixi Wang, Wenhua Zhou, Quan Sun, Xu Zhu
{"title":"Pollution Characteristics and Risk Assessment of Heavy Metals in Agricultural Soils Across Different Regions of China","authors":"Yukun Jiang,&nbsp;Qing Luo,&nbsp;Wenju Dai,&nbsp;Huixi Wang,&nbsp;Wenhua Zhou,&nbsp;Quan Sun,&nbsp;Xu Zhu","doi":"10.1002/clen.70168","DOIUrl":"10.1002/clen.70168","url":null,"abstract":"<div>\u0000 \u0000 <p>To evaluate the contamination levels and ecological risks of heavy metals (HMs) in agricultural soils, 85 soil samples were collected from 14 provinces across China. The concentrations of seven heavy metals (Mn, Zn, Cr, Pb, Cu, Ni, and As) were measured, with mean values of 509.83, 87.38, 64.07, 26.92, 35.10, 29.16, and 12.21 mg/kg, respectively. Spatial distribution analysis revealed that the total concentrations of ΣHMs in soils across 14 provinces exhibited a descending regional gradient: southern China (mean: 129.14 mg/kg) &gt; central China (117.85 mg/kg) &gt; northwestern China (102.77 mg/kg) &gt; northeastern China (99.84 mg/kg). To circumvent spurious correlations inherent in traditional source apportionment methods, this study employs a ternary ensemble strategy integrating compositional data analysis, SELBAL, and principal component/partial matrix factorization to analyze HM sources in interregional agricultural soils across China. The study indicates that HMs in farmland soils primarily originate from natural factors associated with bedrock and composite sources, including industrial production and motor vehicle exhaust emissions, as well as atmospheric deposition processes. The ecological risk assessment revealed no detectable pollution risks for Cr, Mn, and Ni, whereas As, Zn, Pb, and Cu exhibited relatively low contamination levels. Monte Carlo modeling was employed to conduct quantitative assessments of health risks, revealing oral ingestion as the primary exposure pathway. As was identified as the predominant noncarcinogenic risk factor, whereas Ni was identified as the core carcinogenic risk factor.</p>\u0000 </div>","PeriodicalId":10306,"journal":{"name":"Clean-soil Air Water","volume":"54 4","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683001","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
Magnetic Biochar Adsorbent for Adsorptive Removal of Microplastics 磁性生物炭吸附剂吸附去除微塑料
IF 1.4 4区 环境科学与生态学
Clean-soil Air Water Pub Date : 2026-04-03 DOI: 10.1002/clen.70164
Abdul Rahman Abdul Rahim, Zahirah Jaffar, Siti Khaleelah Khaleed, Khairiraihanna Johari, Amirul Aiman Haqeem Abdul Hisham, Nova Ulhasanah, Ariyanti Sarwono
{"title":"Magnetic Biochar Adsorbent for Adsorptive Removal of Microplastics","authors":"Abdul Rahman Abdul Rahim,&nbsp;Zahirah Jaffar,&nbsp;Siti Khaleelah Khaleed,&nbsp;Khairiraihanna Johari,&nbsp;Amirul Aiman Haqeem Abdul Hisham,&nbsp;Nova Ulhasanah,&nbsp;Ariyanti Sarwono","doi":"10.1002/clen.70164","DOIUrl":"10.1002/clen.70164","url":null,"abstract":"<div>\u0000 \u0000 <p>This study addresses the need for effective removal of microplastic from the aquatic environment through development of an efficient adsorbent derived from coconut husk (CH) waste. In this study, biochar (BC) and magnetic biochar (MBC) adsorbents were produced through process called carbonization and impregnation with iron (Fe). The spectral analysis of the adsorbents revealed the presence of functional groups such as hydroxyl (O–H), alkene (C = C), and carbonyl (C–O). The textural properties analysis showed a sufficiently high specific surface area (<i>S</i><sub>BET</sub>) of 428 and 437 m<sup>2</sup>/g for the BC and MBC adsorbents, respectively. The adsorbents are composed of high elemental carbon composition (&gt;60%) that will facilitate microplastic binding onto the surface of the adsorbent. The microplastic adsorption measurement study at initial concentration of 50 mg/L with adsorbent dosage of 25 mg and contact time of 8 h shows the adsorption capacity increased with contact time, reaching maximum of ∼23 and ∼10 mg/g for BC and MBC adsorbents, respectively. The adsorption modeling analysis reveals the adsorptions of microplastic by BC adsorbent occur through homogenous monolayer chemical adsorption process, whereas for MBC adsorbent, it is heterogenous multilayer chemical adsorption. The BC adsorbent demonstrated excellent regenerative capability compared to MBC adsorbent after five regeneration cycles, with removal capacity maintained above ∼75%. These findings could demonstrate the promising potential of CH-derived BC as an effective adsorbent for mitigating microplastic pollution.</p>\u0000 </div>","PeriodicalId":10306,"journal":{"name":"Clean-soil Air Water","volume":"54 4","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683002","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
Migration of Per- and Polyfluoroalkyl Substances in Soil Under Rainfall Simulation 降雨模拟下全氟烷基和多氟烷基物质在土壤中的迁移
IF 1.4 4区 环境科学与生态学
Clean-soil Air Water Pub Date : 2026-04-03 DOI: 10.1002/clen.70161
Minshu Liang, Shervin Kabiri, Michael J. McLaughlin, Divina Navarro
{"title":"Migration of Per- and Polyfluoroalkyl Substances in Soil Under Rainfall Simulation","authors":"Minshu Liang,&nbsp;Shervin Kabiri,&nbsp;Michael J. McLaughlin,&nbsp;Divina Navarro","doi":"10.1002/clen.70161","DOIUrl":"10.1002/clen.70161","url":null,"abstract":"<p>Understanding the migration of per- and polyfluoroalkyl substances (PFAS) in soil via groundwater and surface water is vital for managing PFAS. PFAS transport via surface runoff during rainfall is less known than leaching. This study investigated PFAS migration under simulated rainfall in soils with varying contamination levels, examining multiple pathways to assess the factors affecting PFAS migration. Rainfall simulations were conducted over 15 days with wetting and drying cycles. Results indicate that leaching is likely the dominant pathway for PFAS transport, accounting for the largest proportion (on average 72%) of PFAS mass in the released fractions. Runoff was also an important pathway for long-chain PFAS, whereas short-chain PFAS were not detected in runoff. Both PFAS concentration and the wetting-drying cycles influenced PFAS distribution. Leaching was negligible when PFAS concentrations exceeded 30 mg/kg perfluorooctane sulfonic acid (PFOS), potentially due to reduction in soil hydraulic conductivity. PFAS concentrations in runoff increased following extended drying periods, suggesting accumulation of PFAS in the upper soil. This pattern of evapoconcentration, likely driven by capillary water movement and subsequent evaporation, is consistent with the resurgence of concentration in surface soils. Overall results highlight that surface runoff is an important pathway for PFAS transport, particularly for long chain PFAS. Wetting and drying cycles may promote accumulation in the upper soil layers, increasing the potential for mobilization via runoff. By considering both leaching and runoff, this study contributes to a better understanding of PFAS transport in soils and can help inform management strategies to reduce contaminant spread to surface waters.</p>","PeriodicalId":10306,"journal":{"name":"Clean-soil Air Water","volume":"54 4","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/clen.70161","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147682999","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
Stress Response of Sulfur-Oxidizing Bacteria to Pesticide Exposure: Growth Profiling and Functional Analysis 硫氧化细菌对农药暴露的应激反应:生长特征和功能分析
IF 1.4 4区 环境科学与生态学
Clean-soil Air Water Pub Date : 2026-04-03 DOI: 10.1002/clen.70167
Vishnu, Poonam Sharma, Jupinder Kaur, Satwant Kaur Gosal
{"title":"Stress Response of Sulfur-Oxidizing Bacteria to Pesticide Exposure: Growth Profiling and Functional Analysis","authors":"Vishnu,&nbsp;Poonam Sharma,&nbsp;Jupinder Kaur,&nbsp;Satwant Kaur Gosal","doi":"10.1002/clen.70167","DOIUrl":"10.1002/clen.70167","url":null,"abstract":"<div>\u0000 \u0000 <p>The excessive use of agrochemicals, especially pesticides, has resulted in their accumulation in crops and the environment, raising concerns for both soil health and microbial inoculant performance. This study evaluated the tolerance and functional efficacy of functionally characterized heterotrophic sulfur-oxidizing plant growth-promoting bacteria (SOB) in the presence of five commercial pesticides—herbicides (pendimethalin and clodinafop), fungicides (bavistin and ridomil), and an insecticide (chlorpyrifos)—at recommended and sublethal concentrations (0.5 minimum inhibitory concentrations [MICs]). Three strains, <i>Enterobacter ludwigii</i> Remi_9, <i>Enterobacter hormaechei</i> AUH-ENM30, and <i>Bacillus</i> sp. 5BM21Y12, were obtained from the Department of Microbiology, Punjab Agricultural University, Ludhiana, India. All strains exhibited good growth at recommended pesticide doses except with ridomil. Growth profiling revealed that <i>Bacillus</i> sp. achieved the highest OD<sub>540 nm</sub> at clodinafop (2.09), isoproturon (2.44), bavistin (1.46), and chlorpyrifos (0.88), whereas <i>E. hormaechei</i> showed optimum growth (OD<sub>540 nm</sub> 2.24) with pendimethalin. <i>E. ludwigii</i> recorded peak growth (OD<sub>540 nm</sub> 1.68) at 0.5 MIC of ridomil. Functional characterization indicated that <i>Bacillus</i> sp. showed highest phosphate solubilization (1.76 µg/mL), IAA production (38.43 µg/mL), siderophore production (12.70 µg/mL), ammonia excretion (3.03 µg/mL), and sulfate production (0.12 mM). <i>E. ludwigii</i> excelled in qualitative phosphate and zinc solubilization, whereas <i>E. hormaechei</i> produced the highest siderophores. This study represents the first detailed reports from India on pesticide tolerance of functionally characterized heterotrophic SOB strains with multiple plant growth-promoting traits, highlighting their potential as sustainable bioinoculants for improving crop productivity under pesticide-impacted environments.</p>\u0000 </div>","PeriodicalId":10306,"journal":{"name":"Clean-soil Air Water","volume":"54 4","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683208","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
Commuting Challenges for Big Cities: How to Tackle Particulate Matter Human Exposure? 大城市的通勤挑战:如何解决人体暴露的颗粒物?
IF 1.4 4区 环境科学与生态学
Clean-soil Air Water Pub Date : 2026-04-03 DOI: 10.1002/clen.70162
Marianna Gonçalves Dias Chaves, Camila Ribeiro Schneider, Emílio Graciliano Ferreira Mercuri, Steffen Manfred Noe
{"title":"Commuting Challenges for Big Cities: How to Tackle Particulate Matter Human Exposure?","authors":"Marianna Gonçalves Dias Chaves,&nbsp;Camila Ribeiro Schneider,&nbsp;Emílio Graciliano Ferreira Mercuri,&nbsp;Steffen Manfred Noe","doi":"10.1002/clen.70162","DOIUrl":"10.1002/clen.70162","url":null,"abstract":"&lt;p&gt;Air quality in large cities is a global public health issue that has received increasing attention in recent decades. The dynamics of atmospheric pollutant concentrations form a complex system influenced by meteorology, topography, emission sources, and fleet composition, interacting in a nonlinear pattern. We monitored particulate matter (PM) in two transport modes (walking and bus) and a fixed point in Curitiba, Brazil, to understand human exposure. Real-time &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;PM&lt;/mi&gt;\u0000 &lt;mn&gt;2.5&lt;/mn&gt;\u0000 &lt;/msub&gt;\u0000 &lt;annotation&gt;${rm PM}_{2.5}$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; and &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;PM&lt;/mi&gt;\u0000 &lt;mn&gt;10&lt;/mn&gt;\u0000 &lt;/msub&gt;\u0000 &lt;annotation&gt;${rm PM}_{10}$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; concentrations, with GPS data, were collected using low-cost sensors and microcontrollers. Machine learning models identified key pollution drivers. Results showed that mean PM concentrations were higher inside buses. Afternoon bus samples frequently exceeded 45 &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;μ&lt;/mi&gt;\u0000 &lt;mi&gt;g&lt;/mi&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$mu{rm g}$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;/&lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;msup&gt;\u0000 &lt;mi&gt;m&lt;/mi&gt;\u0000 &lt;mn&gt;3&lt;/mn&gt;\u0000 &lt;/msup&gt;\u0000 &lt;annotation&gt;${rm m}^3$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; for &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;PM&lt;/mi&gt;\u0000 &lt;mn&gt;10&lt;/mn&gt;\u0000 &lt;/msub&gt;\u0000 &lt;annotation&gt;${rm PM}_{10}$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;, surpassing WHO daily limits, while the highest walking peak (approximately 34–35 &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;μ&lt;/mi&gt;\u0000 &lt;mi&gt;g&lt;/mi&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$mu{rm g}$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;/&lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;msup&gt;\u0000 &lt;mi&gt;m&lt;/mi&gt;\u0000 &lt;mn&gt;3&lt;/mn&gt;\u0000 &lt;/msup&gt;\u0000 &lt;annotation&gt;${rm m}^3$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;) occurred near a major highway. &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;PM&lt;/mi&gt;\u0000 &lt;mn&gt;2.5&lt;/mn&gt;\u0000 &lt;/msub&gt;\u0000 &lt;annotation&gt;${rm PM}_{2.5}$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; and &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;PM&lt;/mi&gt;\u0000 ","PeriodicalId":10306,"journal":{"name":"Clean-soil Air Water","volume":"54 4","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/clen.70162","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683000","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
Dam Operation Alters Nutrient Dynamics and Intensifies Heavy Metal Pollution in Riparian Soils: A 15-Year Study of the Three Gorges Reservoir Area, China 三峡库区15年沿河土壤养分动态变化与重金属污染加剧
IF 1.4 4区 环境科学与生态学
Clean-soil Air Water Pub Date : 2026-03-29 DOI: 10.1002/clen.70163
Aiying Zhang, Liang Ma, Gaoming Xiong, Zongqiang Xie
{"title":"Dam Operation Alters Nutrient Dynamics and Intensifies Heavy Metal Pollution in Riparian Soils: A 15-Year Study of the Three Gorges Reservoir Area, China","authors":"Aiying Zhang,&nbsp;Liang Ma,&nbsp;Gaoming Xiong,&nbsp;Zongqiang Xie","doi":"10.1002/clen.70163","DOIUrl":"10.1002/clen.70163","url":null,"abstract":"<div>\u0000 \u0000 <p>The operation of the Three Gorges Dam (TGD) has profoundly altered riparian ecosystems, which serve as critical transitional zones for maintaining riverine water quality. Although numerous studies have examined soil nutrients and heavy metals dynamics in riparian zones, their long-term trajectories remain poorly understood. In this study, we established a long-term monitoring site and compiled data from literature covering riparian soils in 15 districts over 15 years of dam operation (2007–2021). Generalized Linear Mixed Models (GLMMs) were employed to assess the contributions of key factors influencing soil properties in the riparian reservoir zone (RRZ). RRZ soils showed higher soil organic carbon (SOC) and heavy metal concentrations (Cd, Cr, Cu, Zn) compared to adjacent Upland soils. Interannual flooding frequency emerged as the dominant factor, explaining over 50% of the variability in most soil properties. Specifically, pH, total nutrients (SOC, TP TK) and heavy metal concentrations (Cd, Cr, Cu, Pb, Zn) all significantly increased with interannual flooding frequency, while soil available nutrients (AN, AP, AK) significantly declined. Elevation also played a critical role, with soils at 145–155 m showing higher SOC and heavy metal concentrations, while those at 165–175 m had higher TN, TK, AN, and AK levels. To mitigate these impacts, ecological management strategies, including vegetation restoration, are urgently needed. This study offers critical insights for the protection and restoration of riparian zones in the Three Gorges Reservoir, providing a foundation for future management efforts.</p>\u0000 </div>","PeriodicalId":10306,"journal":{"name":"Clean-soil Air Water","volume":"54 4","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147684106","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
Recent Advances and Challenges in Chromium Removal From Aqueous Solutions Using Adsorbent Materials 吸附材料去除水溶液中铬的研究进展与挑战
IF 1.4 4区 环境科学与生态学
Clean-soil Air Water Pub Date : 2026-03-27 DOI: 10.1002/clen.70154
Meenachi Sundaram, Shanmugam Palanisamy, Lawrence Justin, Padmavathi Rajendran, Kandasamy Sengodan
{"title":"Recent Advances and Challenges in Chromium Removal From Aqueous Solutions Using Adsorbent Materials","authors":"Meenachi Sundaram,&nbsp;Shanmugam Palanisamy,&nbsp;Lawrence Justin,&nbsp;Padmavathi Rajendran,&nbsp;Kandasamy Sengodan","doi":"10.1002/clen.70154","DOIUrl":"10.1002/clen.70154","url":null,"abstract":"<div>\u0000 \u0000 <p>The review represents recent progress and challenges related to the removal of chromium from aqueous solutions by different adsorbent materials. The principal classes of adsorbents were biochar, activated carbon, polymeric materials, graphene oxide (GO), metal-based composites, and bio-adsorbents applied for Cr(VI) and Cr(III) removal performance. Biochar and bio-adsorbents became economically viable and environmentally friendly alternatives, especially if their origin came from agricultural or industrial waste. Advanced materials like GO and polymer composites showed outstanding adsorption capacities; however, they had bottlenecks regarding cost and scalability. Metal-based composites—nano-zero-valent iron and magnetite-coated ones in particular—offered both reduction and adsorption capabilities, though some of them indeed suffered from challenges in practical application because of possible leaching of nanoparticles. Another important finding of this review is the nonuniform performance of adsorbents within real wastewater systems, which generally involve competition among contaminants and dynamic environmental conditions. Other major barriers involve economic feasibility of advanced materials, trade-offs in efficiencies of various regeneration approaches, and lack of scalability of novel adsorbents. Emerging trends in the hybrid development of materials and in the incorporation of adsorbents with other advanced technologies, such as membranes and bioreactors, highlight efforts to overcome such limitations. Future studies should focus on developing green and low-cost adsorbents, improving regeneration methods in an eco-friendly manner, and conducting large-scale field verification to confirm the process's performance in realistic conditions. Out of these knowledge gaps, a smooth route will emerge toward effective and sustainable solutions for chromium-polluted water with grave implications in environmental protection and public health.</p>\u0000 </div>","PeriodicalId":10306,"journal":{"name":"Clean-soil Air Water","volume":"54 4","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147585149","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
Issue Information: Clean Soil Air Water. 4/2026 发行信息:清洁土壤空气水。4/2026
IF 1.4 4区 环境科学与生态学
Clean-soil Air Water Pub Date : 2026-03-27 DOI: 10.1002/clen.70172
{"title":"Issue Information: Clean Soil Air Water. 4/2026","authors":"","doi":"10.1002/clen.70172","DOIUrl":"https://doi.org/10.1002/clen.70172","url":null,"abstract":"","PeriodicalId":10306,"journal":{"name":"Clean-soil Air Water","volume":"54 4","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/clen.70172","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147615393","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
Issue Information: Clean Soil Air Water. 4/2026 发行信息:清洁土壤空气水。4/2026
IF 1.4 4区 环境科学与生态学
Clean-soil Air Water Pub Date : 2026-03-27 DOI: 10.1002/clen.70172
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