Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering最新文献_第2页

Biodegradation and detoxification of Congo red by thermophilic Bacillus smithii AMPNK. 嗜热史密斯芽孢杆菌AMPNK对刚果红的降解和解毒作用。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-08-30 DOI: 10.1080/10934529.2026.2724948

Kotresh Kyathanahally Rajashekarappa, Avinash Basavarajappa, Pradeepa Sirabadige Mahadevappa, Gurumurthy Dummi Mahadevan

{"title":"Biodegradation and detoxification of Congo red by thermophilic Bacillus smithii AMPNK.","authors":"Kotresh Kyathanahally Rajashekarappa, Avinash Basavarajappa, Pradeepa Sirabadige Mahadevappa, Gurumurthy Dummi Mahadevan","doi":"10.1080/10934529.2026.2724948","DOIUrl":"https://doi.org/10.1080/10934529.2026.2724948","url":null,"abstract":"Congo red (CR) is a widely used azo dye in the textile industry and is known for its carcinogenic properties. The discharge of CR-containing textile effluents necessitates efficient and sustainable treatment strategies before environmental release. In this study, the ability of the thermophilic bacterium Bacillus smithii AMPNK to biodegrade CR under different physicochemical conditions was evaluated. A maximum CR decolorization of approximately 95% was achieved at 55 °C when maltose was used as the carbon source, while beef extract was the most effective nitrogen source, yielding approximately 87.17% decolorization. The optimum pH for dye degradation was 7.0, with approximately 90% decolorization. UV-Vis, FT-IR, and GC-MS analyses confirmed the occurrence of azo bond cleavage and the formation of lower-molecular-weight degradation metabolites, indicating efficient biodegradation of CR. Laccase activity and total protein analysis further demonstrated that enzymatic degradation was closely associated with the active growth phase of B. smithii AMPNK. Phytotoxicity assays using Vigna radiata and Trigonella foenum-graecum revealed that untreated CR markedly inhibited seedling growth, reducing root length to 2.2 ± 1.23 cm and 2.1 ± 0.81 cm, respectively, whereas treatment with biodegraded metabolites restored root growth to 5.4 ± 1.50 cm and 4.7 ± 1.34 cm, respectively, indicating substantial detoxification. Overall, these findings demonstrate that thermophilic B. smithii AMPNK is a promising biocatalyst for the biodegradation and detoxification of Congo red in high-temperature textile wastewater.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1-9"},"PeriodicalIF":2.0,"publicationDate":"2026-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148860365","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

Study on the molecular mechanism of interaction between brominated flame retardants and human serum albumin by molecular docking. 用分子对接方法研究溴化阻燃剂与人血清白蛋白相互作用的分子机制。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-08-28 DOI: 10.1080/10934529.2026.2724949

Changwei Ci, Zhuwei Liao, Jie Fu, Yin Luo, Pengfei Wang

{"title":"Study on the molecular mechanism of interaction between brominated flame retardants and human serum albumin by molecular docking.","authors":"Changwei Ci, Zhuwei Liao, Jie Fu, Yin Luo, Pengfei Wang","doi":"10.1080/10934529.2026.2724949","DOIUrl":"https://doi.org/10.1080/10934529.2026.2724949","url":null,"abstract":"With the extensive application of brominated flame retardants (BFRs) in industry and daily life, their potential impact on human health has gradually drawn attention. This study utilized molecular docking, supplemented by molecular dynamics (MD) simulations, to analyze the interaction mechanism between various BFRs and human serum albumin (HSA). The docking results showed that the binding energy values were generally between -6.32 kcal·mol-1 and -10.98 kcal·mol-1. BFRs mainly anchored to HSA through hydrophobic interactions, hydrogen bonds, and halogen bonds. High-frequency amino acid residues such as PHE104A, LEU70A, and ILE73A repeatedly appeared in multiple docking models, suggesting their core role in the binding process. MD simulations further confirmed the stability of the representative complexes, with protein backbone RMSD values remained 0.20-0.45 nm throughout the 100 ns trajectories, corroborating the reliability of the docking-derived binding poses. Correlation analysis revealed that the physicochemical determinants of binding affinity were subclass-dependent: for PBBs, molecular weight exhibited a significant positive correlation (r = 0.646, p ≤ 0.05), while for PBDEs, density showed the strongest association (r = 0.5045, p ≤ 0.05). These findings indicate that simple bivariate correlations may not fully capture the complex binding mechanisms, and that subclass-specific rather than universal physicochemical predictors should be considered. This study provided a reusable standardized protocol for the research on the interaction between environmental pollutants and biological macromolecules and laid a theoretical foundation for the ecological risk assessment of flame retardants.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1-10"},"PeriodicalIF":2.0,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148850939","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

Enhancing nutrient retention in fermented bio-extract using biochar derived from oil palm empty fruit bunch. 利用油棕空果串生物炭提高发酵生物提取物的营养保留。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-08-28 DOI: 10.1080/10934529.2026.2724730

Ruamporn Nikhom, Nares Chimres, Suwattana Nikhom, Thathira Siriphan, Apinya Vanichpun, Jiranart Rongchoung, Kittiphoom Suppalakpanya

{"title":"Enhancing nutrient retention in fermented bio-extract using biochar derived from oil palm empty fruit bunch.","authors":"Ruamporn Nikhom, Nares Chimres, Suwattana Nikhom, Thathira Siriphan, Apinya Vanichpun, Jiranart Rongchoung, Kittiphoom Suppalakpanya","doi":"10.1080/10934529.2026.2724730","DOIUrl":"https://doi.org/10.1080/10934529.2026.2724730","url":null,"abstract":"The application of fermented bio-extract (FB) to promote plant growth is increasingly adopted in organic agriculture. However, nutrients in FB are readily lost through leaching, limiting their effectiveness. This study investigated biochar derived from oil palm empty fruit bunches (EFB) as a carrier for retaining nutrients from an FB produced from seafood processing waste. The EFB biochar contained 1.48% N, 0.72% P, and 1.68% K, whereas the FB contained 1.39% N, 1.03% P, and 0.64% K. Nitrogen adsorption increased with FB concentration and contact time, approaching equilibrium after 60 min. After enrichment, the nutrient contents of the biochar increased to 3.18% N, 2.30% P, and 3.03% K. Immersion experiments showed that FB-enriched EFB biochar retained significantly higher amounts of N, P, and K than untreated biochar during the first 6 h. Pot experiments further demonstrated that FB-enriched EFB biochar significantly improved the growth and biomass of Chinese kale compared with cattle manure, despite supplying substantially less nitrogen than urea at the same application rate. These findings indicate that EFB biochar can serve as an effective nutrient carrier with potential as a slow-release organic soil amendment while simultaneously valorizing agricultural waste for sustainable crop production.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1-10"},"PeriodicalIF":2.0,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148840496","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

Study of the combined-carrier dual mechanism of polyethylene terephthalate microplastics and nonylphenol ethoxylates on bovine serum albumin. 聚对苯二甲酸乙二醇酯微塑料与壬基酚聚氧乙烯酯复合载体对牛血清白蛋白的双重作用机理研究。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-08-26 DOI: 10.1080/10934529.2026.2722474

Haiting Sun, Mochi Zhang, Xinming Li, Jiali Gu, Gang Zhao, Yunshu Lu

{"title":"Study of the combined-carrier dual mechanism of polyethylene terephthalate microplastics and nonylphenol ethoxylates on bovine serum albumin.","authors":"Haiting Sun, Mochi Zhang, Xinming Li, Jiali Gu, Gang Zhao, Yunshu Lu","doi":"10.1080/10934529.2026.2722474","DOIUrl":"https://doi.org/10.1080/10934529.2026.2722474","url":null,"abstract":"Microplastics, as carriers of environmental pollutants, may influence their biological effects through adsorption. The adsorption mechanism of polyethylene terephthalate microplastics (PET MPs) on the endocrine disrupting compound nonylphenol ethoxylate (NPE) is studied. Furthermore, the effect of the PET MPs-NPE complex on the structure and function of the carrier protein bovine serum albumin (BSA) is further explored. The adsorption process of PET MPs on NPE conforms to the pseudo-second-order kinetic model (R2 = 0.9985) and Freundlich model (R2 = 0.9241), and belongs to a spontaneous, endothermic, and entropy-increasing process. PET MPs function as effective NPE carriers, achieving a desorption rate of 59.29% in acidic buffer solution (pH 1.2), suggesting that ingestion may enhance NPE release risk in vivo. Multispectral analysis showed that free PET MPs and NPE were bound to Site II of BSA through hydrogen bonding and van der Waals forces, altering BSA's secondary structure. When PET MPs and NPE coexist, they exhibit a combined effect, manifested by significantly enhanced binding affinity with BSA (Kb from 5.39 × 104 M-1 to 2.71 × 105 M-1) and higher disturbance to BSA conformation than a single component. The PET MPs-NPE complex triggers pronounced conformational changes in BSA, suppresses esterase-like activity, and alters thiol content.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1-20"},"PeriodicalIF":2.0,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148818591","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

Industrial wastewater toxicity: threats to aquatic ecosystems and innovative water treatment solutions. 工业废水毒性：对水生生态系统的威胁和创新的水处理解决方案。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-05-06 DOI: 10.1080/10934529.2026.2664324

Ajwa Nazar, Syed Makhdoom Hussain, Shafaqat Ali, Muhammad Mudassar Shahzad, Adan Naeem, Eman Naeem, Muhammad Adnan Khalid, Eram Rashid, Bilal Ahmad

{"title":"Industrial wastewater toxicity: threats to aquatic ecosystems and innovative water treatment solutions.","authors":"Ajwa Nazar, Syed Makhdoom Hussain, Shafaqat Ali, Muhammad Mudassar Shahzad, Adan Naeem, Eman Naeem, Muhammad Adnan Khalid, Eram Rashid, Bilal Ahmad","doi":"10.1080/10934529.2026.2664324","DOIUrl":"10.1080/10934529.2026.2664324","url":null,"abstract":"Over population, climate change, and pollution threaten clean water access, emphasizing the importance of wastewater treatment. Aquatic life has a significant impact on the environment, particularly on fish, which provide a great food source in the world. Industrial effluents have negative effects on marine life since they are discharged directly into rivers, lakes, and other water bodies without proper treatment. This leads to biodiversity loss and disturbance of ecological nature. Effluents are complex mixtures of toxic substances such as organic substances, heavy metals, and other new contaminants. This review article summarizes the current studies on ecotoxicological impacts of industrial discharge on aquatic organisms. The toxicant entry routes and bioaccumulation in fish, invertebrates, and other microorganisms are studied, which can lead to reproductive dysfunction, developmental retardation, and mortality increase. This review highlights the overview of the traditional and the modernized wastewater treatment processes. Traditional approaches such as activated sludge, chlorination and artificial ponds are discussed, whereas progressive approaches include UV disinfection, advanced oxidation, membrane bioreactor, reverse osmosis, nanofiltration, and AI-based optimization. These modern technologies remove pollutant effectively however, require high energy input and operational costs.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"483-502"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147838832","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

Time-dependent emission characteristics of terpenes from an essential oil diffuser and indoor exposure assessment using a wearable passive sampler. 精油扩散器中萜烯的时间依赖性发射特性和使用可穿戴被动采样器的室内暴露评估。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-03-10 DOI: 10.1080/10934529.2026.2641359

Pil-Gon Kim, Jung-Hwan Kwon

{"title":"Time-dependent emission characteristics of terpenes from an essential oil diffuser and indoor exposure assessment using a wearable passive sampler.","authors":"Pil-Gon Kim, Jung-Hwan Kwon","doi":"10.1080/10934529.2026.2641359","DOIUrl":"10.1080/10934529.2026.2641359","url":null,"abstract":"Essential oil diffusers containing monoterpenes such as limonene, α-pinene, and β-pinene are widely used indoors, yet their impact on indoor air quality remains insufficiently understood. This study investigated the time-dependent emission behavior of monoterpenes from a commercial essential oil diffuser and assessed indoor exposure using a wearable passive sampling approach. The diffuser was operated in an office environment for two weeks, and terpene concentrations were measured with a pre-developed passive sampler. Emission rates were highest immediately after initial deployment and gradually declined over time. Limonene exhibited the highest emission rate, followed by β-pinene and α-pinene, reflecting their relative composition in the product. Within the first 2 h of operation, indoor concentrations increased from background levels of 1.8, 0.17, and 0.12 μg m-³ to 5.8, 2.2, and 1.7 μg m-³ for limonene, α-pinene, and β-pinene, respectively (corresponding to increases of 3.2-, 13-, and 14-fold). An additional unidentified compound exhibited a pronounced transient increase (up to 698-fold relative to background) during the initial deployment phase. However, its chemical identity and formation pathway remain uncertain, and both atmospheric formation and potential sampling artifacts cannot be excluded. These results demonstrate that essential oil diffusers can cause short-term increase in indoor terpene concentrations and may be associated with transient secondary chemistry, particularly during initial use. The findings highlight the importance of considering time-dependent emissions and secondary chemistry when evaluating indoor exposure associated with essential oil diffuser use.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"263-271"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147433059","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

Resource recovery of steel slag: Effects of partial substitution for soilless culture medium on coriander cultivation after modification. 钢渣资源化利用：改良后部分替代无土培养基对香菜栽培的影响。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-02-16 DOI: 10.1080/10934529.2026.2627826

Sheng Lv, YouDong Fang, FuJun Fang, Chang Su, NingNing Lv

{"title":"Resource recovery of steel slag: Effects of partial substitution for soilless culture medium on coriander cultivation after modification.","authors":"Sheng Lv, YouDong Fang, FuJun Fang, Chang Su, NingNing Lv","doi":"10.1080/10934529.2026.2627826","DOIUrl":"10.1080/10934529.2026.2627826","url":null,"abstract":"To promote the resource utilization of steelmaking slag (SS) and reduce peat consumption, this study investigated the partial substitution of peat with modified steelmaking slag (MSS) for coriander cultivation. SS and iron tailings (1:1 w/w) were modified at 1550 °C to mitigate alkalinity and heavy metal risks. MSS of two particle sizes (20-60 mesh and 60-100 mesh) replaced peat in a standard mix (peat: perlite: vermiculite = 1:1:1 v/v/v) at weight ratios of 10%-40%. The results demonstrated that the modification significantly optimized the medium pH, EC, and heavy metal leaching profiles to meet coriander growth requirements. Optimal performance was observed at a 20% weight substitution ratio using 20-60 mesh MSS, where coriander growth parameters and soluble content matched commercial control levels. In conclusion, MSS serves as a safe and effective peat substitute within specific particle sizes (20-60 mesh) and weight replacement ratios (≤20%). This strategy not only mitigates ecological risks from slag alkalinity and heavy metals but also enhances the economic viability of soilless cultivation by reducing peat dependency and material costs.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1-13"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146201978","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

Research on remediation of cadmium-impacted soils: the role of PRB, the buffering capacity of rhamnosyl lipid fermentation solution, and the migration of cadmium-focused areas. 镉污染土壤的修复研究：PRB的作用、鼠李糖脂质发酵液的缓冲能力以及镉集中区域的迁移。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-06-08 DOI: 10.1080/10934529.2026.2683767

Haiyan Qiu, Tao Zhan, Yucui Wang, Guihong Lan, Bo Xu

{"title":"Research on remediation of cadmium-impacted soils: the role of PRB, the buffering capacity of rhamnosyl lipid fermentation solution, and the migration of cadmium-focused areas.","authors":"Haiyan Qiu, Tao Zhan, Yucui Wang, Guihong Lan, Bo Xu","doi":"10.1080/10934529.2026.2683767","DOIUrl":"10.1080/10934529.2026.2683767","url":null,"abstract":"To address the heavy metal \"focusing effect\", this study proposes a synergistic enhancement method combining rhamnolipid fermentation broth (RLs) and permeable reactive barrier (PRB). Through four groups of comparative experiments, the effects of RLs on soil electrical conductivity, electro-osmotic flow (EOF), cation exchange capacity (CEC), pH distribution, migration of the cadmium focusing zone, and cadmium speciation transformation were systematically analyzed. The results showed that RLs increased the negative zeta potential of soil surfaces (to -30 ∼ -41 mV) and electro-osmotic flow (by 24.5%), promoting the formation of mobile complexes between Cd and RLs, thereby effectively alleviating cadmium accumulation at the acid-base peak. PRB further immobilized migrating cadmium by regulating local pH (maintaining near-neutral conditions) and chemisorption on activated carbon. In the combined RLs-PRB group (EK3), the cadmium removal rate reached 80.77% in non-focusing zones (i.e., S1, S2, and S4, where no significant cadmium accumulation occurred between electrodes and PRB) in soil with an initial cadmium concentration 20 times higher than the regulatory limit. Meanwhile, soil pH remained neutral, CEC was stable, and energy consumption was significantly reduced. This study provides a theoretical basis and technical support for the practical application of the RLs-PRB synergistic electrokinetic remediation technology.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"814-832"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148198894","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

Composition for impregnating building materials to decrease their gas permeability. 浸渍建筑材料以降低其透气性的组合物。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-06-09 DOI: 10.1080/10934529.2026.2684865

Renat R Khaydarov, Olga U Gapurova

{"title":"Composition for impregnating building materials to decrease their gas permeability.","authors":"Renat R Khaydarov, Olga U Gapurova","doi":"10.1080/10934529.2026.2684865","DOIUrl":"10.1080/10934529.2026.2684865","url":null,"abstract":"The gas permeability of building materials is a critical factor influencing structural durability, energy efficiency, and indoor air quality. This study presents a preliminary investigation into a method for reducing the permeability of concrete and gypsum using a novel penetrative organosilicon composition. The composition is based on the reaction product of polyethylhydride siloxane (PEHS) and alkyltriethoxysilane (ATES) hydrolysate. Experimental measurements using air and argon as proxy gases demonstrate that the optimized layer-by-layer treatment can significantly increase the gas impermeability coefficient (K0/Kt). Given the correlation between molecular size and permeation, these findings suggest a theoretical potential for blocking hazardous soil gases such as radon (222Rn). This potential was further explored through initial pilot field tests in residential buildings, which yielded promising preliminary results. However, these findings emphasize the need for extensive long-term evaluations and direct radon diffusion studies to fully validate the efficacy and durability of the proposed treatment under diverse environmental conditions.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"833-842"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148205090","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

Wind energy development in China: Addressing the growing issue of wind turbine blade disposal amidst the decommissioning wave. 中国的风能发展：在退役浪潮中解决日益严重的风力涡轮机叶片处理问题。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-03-21 DOI: 10.1080/10934529.2026.2635904

Hongyu Luo, Jinjuan Zhao, Ziyang Wang, Yanhan Xu, Xinghui Zhang, Shejiang Liu, Hui Ding

{"title":"Wind energy development in China: Addressing the growing issue of wind turbine blade disposal amidst the decommissioning wave.","authors":"Hongyu Luo, Jinjuan Zhao, Ziyang Wang, Yanhan Xu, Xinghui Zhang, Shejiang Liu, Hui Ding","doi":"10.1080/10934529.2026.2635904","DOIUrl":"10.1080/10934529.2026.2635904","url":null,"abstract":"China's world-leading wind power capacity faces an impending wave of wind turbine blade decommissioning, which poses significant environmental and resource recovery challenges due to the difficult-to-recycle composite materials used, primarily glass fiber reinforced polymer (GFRP) and carbon fiber reinforced polymer (CFRP). This paper analyzes the prospects for recycling retired wind turbine blades (RWTBs) within the Chinese context. We review and assess the development status and characteristics of the main recycling technologies-mechanical, pyrolysis, and chemical recycling-which are currently focused on filler and feedstock applications but are hindered by material performance and cost limitations. Furthermore, we examine the evolving policy landscape supporting R&D and industrial development for RWTB recycling in China, placing it within a global comparative framework alongside the EU and US. Complementing this analysis, the study employs data visualization to map China's historical installation trends and the geographical distribution of blade waste, clarifying the scale and spatial dynamics of the impending challenge. Future research priorities include enhancing recycled fiber quality, reducing process costs, and exploring new application areas. This comprehensive analysis concludes that a synergistic approach, combining policy support, technological innovation, and market mechanisms, is essential to establish a sustainable and circular management system for RWTBs in China. Achieving efficient, large-scale RWTB recycling is crucial for the sustainability of China's wind industry and its carbon neutrality goals.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"291-310"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147494133","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