Journal of Environmental Management最新文献

{"title":"Aligning national waste management targets with local context: An LCA-based framework for greenhouse gas mitigation–Insights from a case study in China","authors":"Junting Zhang ,&nbsp;Yuhe Zhang ,&nbsp;Quande Qin ,&nbsp;Aiduan Borrion ,&nbsp;Guangming Li","doi":"10.1016/j.jenvman.2025.125436","DOIUrl":"10.1016/j.jenvman.2025.125436","url":null,"abstract":"<div><div>Municipal solid waste (MSW) management significantly impacts urban climate change. National waste management targets usually guide the general advancement in treatment system but lack alignment with local reality. This study examines the greenhouse gas (GHG) mitigation potential of MSW management in Shenzhen, China, over a 5–15 years period comparing the complete incineration strategy to other policy combinations. Using a life cycle assessment (LCA) based framework, the study integrates waste generation, source separation, and treatment structure into segmental targets, revealing the internal dynamics that influence GHG emissions within waste configurations. Both short-term and long-term implementation effects are provided in terms of GHG mitigation potential to facilitate the effective design of future strategies. Results suggest that shifting from landfilling to complete incineration reduces short-term GHG emissions because of enhanced energy recovery. However, considering the long-term horizon, food waste separation and transitions in energy structure suggest that retaining some landfilling, alongside prioritizing incineration without further expansion, could mitigate up to 3.3 million tons of GHG emissions. Sensitivity of GHG emissions to waste composition and energy structure grows with time, demonstrating the need for adaptable, locally tailored targets to facilitate smooth transition towards long-term sustainability. Given that a one-size-fits-all approach is insufficient, local governments must consider both immediate and future impacts, as well as environmental trade-offs, alongside adopting national goals to develop effective MSW management strategies towards circular economy.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"383 ","pages":"Article 125436"},"PeriodicalIF":8.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143851788","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}

{"title":"Fugitive gases reduction and carbon sequestration potential of ecological floating beds","authors":"Gaojun Yan ,&nbsp;Chisong Qiao ,&nbsp;Ziyan Liu ,&nbsp;Tsing Bohu ,&nbsp;Jiancheng Wang ,&nbsp;Guangming Zhang ,&nbsp;Zhihui Bai ,&nbsp;Xuliang Zhuang","doi":"10.1016/j.jenvman.2025.125341","DOIUrl":"10.1016/j.jenvman.2025.125341","url":null,"abstract":"<div><div>Ecological floating beds (EFBs) are widely utilized as a green, cost-effective, and efficient technology for biologicalwater treatment in ponds, rivers, and secondary treatment of wastewater plant effluents. However, their potential for greenhouse gas (GHG) absorption and transformation is often overlooked. This paper begins by summarizing the accounting and emission status of GHGs from wastewater treatment plants (WWTPs), reviewing plant-microbial interactions in the phyllosphere and rhizosphere, and exploring plant-microbial-mediated transformations of carbon and nitrogen cycles. Special attention is given to variations in carbon and nitrogen cycling intensities within the plant phyllosphere and rhizosphere under warm and humid conditions with elevated GHG concentrations. We propose an exploratory approach using Ecological Floating Beds-Greenhouse (EFBs-GH) to absorb and transform fugitive gases from biochemical tanks, while enhancing sewage treatment efficiency. The study investigates the advantages and potential of EFBs for carbon sequestration and efficiency improvement in WWTPs, aiming to provide technical solutions and theoretical foundations for reducing fugitive gas emissions, including GHGs and odorous gases, etc., from concentrated sources such as WWTPs.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"383 ","pages":"Article 125341"},"PeriodicalIF":8.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143851582","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}

{"title":"Foliar application of ferroferric oxide nanomaterials enhance source-sink communication and growth in soybean","authors":"Xing Luo ,&nbsp;Wen Ao ,&nbsp;Yusheng Qin ,&nbsp;Chuanxi Wang ,&nbsp;Xiaona Li ,&nbsp;Le Yue ,&nbsp;Yangyang Ma ,&nbsp;Xuesong Cao ,&nbsp;Zhenyu Wang ,&nbsp;Xianzheng Yuan","doi":"10.1016/j.jenvman.2025.125474","DOIUrl":"10.1016/j.jenvman.2025.125474","url":null,"abstract":"<div><div>Innovative technology to address iron deficiency in agriculture while reducing environmental burden is needed because of increasing food demand for the rapidly rising global population. The impact of foliar application of ferroferric oxide nanomaterials (Fe₃O₄ NMs) at different concentrations (1–50 mg/L) on soybean growth were investigated in the whole life cycle. The beneficial effects of Fe₃O₄ NMs on soybean were concentration-dependent and exhibited nano-effect. Foliar application with 10 mg/L Fe₃O₄ NMs exhibited the best performance, notably improving fresh shoot biomass by 9.7–36.2 % among three stages, and increasing root/shoot ratio by 39.1–78.2 %, which are higher than commercial iron fertilizer. Transcriptomic and metabolomic analyses revealed that Fe₃O₄ NMs: (1) increased soybean photosynthesis to supply more sucrose in soybean leaves; (2) upregulated sucrose transporter genes expression, enhanced auxin and abscisic acid content, and augmented stage-specific sucrose-related metabolites (including tricarboxylic acid cycle and amino acids at seedling stage, the antioxidants at flowering and mature stage) in leaves, thereby enhancing the ability of sucrose transport from source to sink, and finally improving the developments of soybean different sinks among different stages. Our findings highlight the considerable potential of Fe₃O₄ NMs as a sustainable and high-efficiency crop fertilizer strategy.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"383 ","pages":"Article 125474"},"PeriodicalIF":8.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855580","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}

{"title":"Crosstalk between gut metabolomics, bioaccumulation, and microbial enrichment in earthworms for effective remediation of toxic metals: Insights from green waste-based vermicomposting systems","authors":"Himadri Mandal ,&nbsp;Saptarshijyoti Gogoi ,&nbsp;Atheena Menon G ,&nbsp;Malini Laloraya ,&nbsp;Bornali Gogoi ,&nbsp;Satya Sundar Bhattacharya","doi":"10.1016/j.jenvman.2025.125430","DOIUrl":"10.1016/j.jenvman.2025.125430","url":null,"abstract":"<div><div>The knowledge on earthworm gut metabolomic variations in metal-enriched green waste (GW)-based vermicomposting systems is scarce. Earthworm's gut metabolite-metal accumulation interactions have also not been studied earlier. Therefore, GW-based <em>Eisenia fetida</em>-mediated vermicomposting and aerobic composting systems were spiked with Pb-Cr-Cu (1:1:1)-mixed solutions. While earthworm reproduction, body weight, and gut microbial growth were slightly lower in metal-spiked GW-vermibeds compared to unspiked vermibeds, the temporal increase in N-P-K enrichment, feedstock microbial counts, and microbial biomass-C&amp;N were significantly more in metal-spiked vermicomposts than in metal-spiked composts. Interestingly, the metal removal efficiency was ∼1.2–3.0 times higher in metal-spiked vermibeds than in unspiked vermibeds and composting beds. Furthermore, the degree of bioaccumulation for Pb (spiked - 1.64 mg kg⁻¹ versus unspiked - 0.22 mg kg⁻¹), Cr (spiked - 0.92 mg kg⁻¹ versus unspiked - 0.40 mg kg⁻¹), and Cu (spiked – 1.54 mg kg⁻¹ versus unspiked - 0.79 mg kg⁻¹) was significantly higher in earthworms grown in spiked than in unspiked GW feedstocks. The LC-QTOF-MS-mediated earthworm-gut metabolomic profiling revealed that 655 biomolecules were significantly up or down-regulated due to metal spiking. Interestingly, compounds known for stress-ameliorating roles (e.g., methylcitisine and trans-anethole) have increased most dramatically in metal-spiked vermibed-borne earthworms. A KEGG-database analysis revealed that the phenylpropanoid pathway metabolites augment in metal-rich feedstock-borne earthworms. Finally, the correlation statistics clarified that earthworm gut metabolite distribution meaningfully alters to enhance the detoxification of non-essential toxic metals (Pb and Cr) more than essential micronutrient metals (Cu) in waste-based vermicomposting systems.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"383 ","pages":"Article 125430"},"PeriodicalIF":8.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143851861","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}

{"title":"Enhancing caproate production in lactate-containing effluents by Megasphaera hexanoica through acetate modulation","authors":"Zeyu Wang ,&nbsp;Jun Chen ,&nbsp;María C. Veiga ,&nbsp;Christian Kennes","doi":"10.1016/j.jenvman.2025.125327","DOIUrl":"10.1016/j.jenvman.2025.125327","url":null,"abstract":"<div><div>The anaerobic bacterium <em>Megasphaera hexanoica</em> has great potential for caproate production through reverse β-oxidation using lactate, acetate, and butyrate as substrates. This study assessed the effect of acetate concentrations (10–50 mM) on caproate biosynthesis, lactate oxidation, and cell synthesis in <em>M</em>. <em>hexanoica</em>. At 30 mM acetate, caproate production reached 42.83 mM, with an electron efficiency of 67.03 % and a specific productivity of 4.47 g_CA·h⁻¹·g_DCW⁻¹. Subsequent fed-batch experiments with lactate, acetate, and butyrate maintained continuous caproate production, achieving 65.21 mM. Bioreactor assays further validated the strategy, yielding 65.25 mM caproate over 180 h. Mechanistic analysis demonstrated that 30 mM acetate optimized acetyl-CoA flux and enhanced caproyl-CoA transferase activity (3.5 U‧mg⁻¹), supporting caproate synthesis. Kinetic modeling demonstrated the Logistic model fit lactate consumption (R² = 0.991), while the Fitzhugh model captured caproate production (R² = 0.991, NRMSE = 1.137). The findings offer practical insights for industrial-scale caproate production.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"383 ","pages":"Article 125327"},"PeriodicalIF":8.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855579","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}

{"title":"Repurposing shared bike frames into rural infrastructure","authors":"Cheng Qian ,&nbsp;Zhao Ma","doi":"10.1016/j.jenvman.2025.125229","DOIUrl":"10.1016/j.jenvman.2025.125229","url":null,"abstract":"<div><div>While bike-sharing systems have generated significant economic benefits, they have also faced challenges regarding the disposal and recycling of discarded bicycle frames. A potential solution to reuse these difficult-to-recycle frames for essential public service facilities in rural areas has not yet been thoroughly explored. Using shape grammar as a design method, this study examines two typical bicycle frame designs with different geometric properties and successfully repurpose the frames into various public service facilities, such as public tables and chairs, railings, installations, and public restrooms. The research highlights the significant potential for the reuse of discarded bicycle frames by reducing resource waste and providing essential infrastructure for underdeveloped rural areas to narrow the urban-rural disparity. The innovative approach presented in this study offers new directions for future research and practical applications in waste recycling.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"382 ","pages":"Article 125229"},"PeriodicalIF":8.0,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850125","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}

{"title":"Aquatic toxicity of leachates from crystalline silicon photovoltaic components","authors":"Brianna C. Tavolacci,&nbsp;Preeti Nain,&nbsp;Annick Anctil","doi":"10.1016/j.jenvman.2025.125400","DOIUrl":"10.1016/j.jenvman.2025.125400","url":null,"abstract":"<div><div>Previous ecotoxicological assessments of solar photovoltaic (PV) technologies vary considerably and focus solely on the active cell layer. A comprehensive evaluation of all possible sources of toxicity is required for proper disposal classification of waste materials. We evaluated the aquatic ecotoxicity of separated PV components from three crystalline silicon modules to crustacea, <em>Daphnia magna</em>. Modules were separated into three categories for testing: 1) powdered glass and cell, 2) encapsulation and back sheet polymers, and 3) junction box and cables. Batch leachates were used in bioassays and assessed for metal and microplastic leaching. The powder and polymers from two tested modules had little observed impact on daphnids, while the third showed significant toxicity with EC50s at 5% or less leachate. One junction box and cable mixture had significant toxicity with an EC50 of less than 10%. Upon metal analysis, Al and Ag leached in high concentrations upon metal analysis and were the primary suspects for ecotoxicological effects. Microplastics were not detected in powder or encapsulation and back sheet leachates, while there was evidence of hydrocarbon polymers in junction box and cable leachates. This work confirmed that metals in the active layer of solar modules are a primary source of concern, and potential microplastic leaching from junction boxes and cables should not be overlooked. Overall, the acute toxicity of silicon solar photovoltaics depends on the module type, components considered, and leachate exposure concentrations.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"382 ","pages":"Article 125400"},"PeriodicalIF":8.0,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850183","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}

{"title":"Sustainable vineyard management: Assessing the environmental impact of vermicompost compared over mineral fertilizers","authors":"Sara Lago-Olveira ,&nbsp;Pablo Antelo-Lijo ,&nbsp;Daniel Durán Pereira ,&nbsp;Javier J. Cancela ,&nbsp;Sara González-García","doi":"10.1016/j.jenvman.2025.125192","DOIUrl":"10.1016/j.jenvman.2025.125192","url":null,"abstract":"<div><div>The use of mineral fertilizers in agriculture has been identified as a significant source of pollution, contributing to the formation of hypoxic water bodies and the emergence of a pressing public health concern in numerous developing countries due to nitrate contamination of drinking water. In response to the increasing recognition of the need for more sustainable fertilization methods, this study investigates the potential for vermicompost to outperform mineral fertilizers in terms of environmental performance in Galician vineyards (Northwest Spain) using the Life Cycle Assessment methodology. The analysis followed a cradle-to-gate approach, conducting a comparison between vermicompost and synthetic fertilizers across fourteen impact categories, including biodiversity loss and novel ecosystem services indicators (e.g., water purification, soil erosion prevention, and carbon sequestration).</div><div>The results indicated that the use of vermicompost resulted in greater environmental impacts compared to conventional grape production (up to 17 times higher), irrespective of the functional unit, due to the elevated levels of nutrients applied and the considerable influence of vermicompost production on specific impact categories, including water scarcity, terrestrial acidification, and global warming. On the other hand, the use of vermicompost markedly improved carbon sequestration compared to conventional cultivation, with values ranging from −25.75 to −88.73 t C·ha⁻¹ in vermicompost scenarios, as opposed to 26.49 t C·ha⁻¹ in conventional scenarios, effectively offsetting their carbon footprint. In terms of soil erosion control, a decline was observed (73.45 t soil·ha⁻¹), irrespective of the fertilization strategy employed. The most impactful activities identified were disease control and fertilization, primarily due to on-field emissions and the production of phytosanitary products. In contrast, field operations and infrastructure had minimal influence on the overall environmental profile.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"382 ","pages":"Article 125192"},"PeriodicalIF":8.0,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850124","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}

{"title":"The microclimatic and ecohydrological effects of photovoltaic facilities in arid/semi-arid regions of China: An integrated modeling study","authors":"Jingbo Sun,&nbsp;Wenrui Cui,&nbsp;Wenhui Wang,&nbsp;Xiaofan Yang","doi":"10.1016/j.jenvman.2025.125395","DOIUrl":"10.1016/j.jenvman.2025.125395","url":null,"abstract":"<div><div>Photovoltaic (PV) facilities play a pivotal role in restructuring energy systems and mitigating carbon emissions. However, they also alter local microclimates and ecohydrological conditions, especially in arid and semi-arid regions. Most existing studies focus on individual environmental factors and overlook the coupled interactions among soil, vegetation, atmosphere, and PV infrastructure. To address this, we developed a novel soil–plant–PV–atmosphere continuum (SPPVAC) model that integrates airflow, heat, and moisture transport processes with vegetation dynamics. The model was validated with field observations and applied to a representative PV site in Zhangjiakou, northern China. Results show that PV facilities reduce wind speed by 27.6–42.3 %, increase air temperature by 2.31 °C, and raise humidity by 35.8 % in sheltered areas. These microclimatic changes enhance biomass productivity of soybean, alfalfa, and parsnip by 48.3 %, 42.9 %, and 26.7 %, respectively. Crops with higher leaf area density exhibited stronger transpiration and microclimate regulation. This study provides an integrated simulation framework to evaluate microclimate–vegetation feedback under PV systems and offers crop-specific insights for optimizing agrivoltaic design. The findings highlight the potential of PV infrastructure to support both renewable energy generation and ecological restoration.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"382 ","pages":"Article 125395"},"PeriodicalIF":8.0,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850128","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}

{"title":"How do FDI and tax competition of local governments affect PM2.5 rebound effects? Evidence from China","authors":"Xiao Han ,&nbsp;Yi Li ,&nbsp;Meiying Xie ,&nbsp;Yichen Wang","doi":"10.1016/j.jenvman.2025.125412","DOIUrl":"10.1016/j.jenvman.2025.125412","url":null,"abstract":"<div><div>Rebound effects of fine particulate matter (PM_2.5) pollution occurs when improvements in environmental efficiency fail to achieve the expected mitigation. Under economic tournaments, local government competition plays a critical role in addressing the rebound effects. However, it remains unclear whether local government competition exacerbates or mitigates the rebound effects based on different competition means. Particularly in China, local governments often attract foreign direct investment (FDI) and take tax incentives to gain economic advantages. Therefore, this study aims to explore how local government competition affects PM_2.5 rebound effects using dynamic spatial Durbin model, focusing on the differences between FDI and tax competition. The results reveal an inverted-U relationship between FDI competition and PM_2.5 rebound effects, with an inflection point at 20.706 billion Chinese Yuan. While for every 1% increase in tax competition, the PM_2.5 rebound effects consistently increase by 0.137%. Notably, the impact of FDI competition shows significant regional heterogeneity. In economically developed regions, FDI competition surpasses the inflection point of the inverted-U curve, whereby a 1% increase in FDI competition mitigates the rebound effects by 0.064%. While in underdeveloped regions, FDI competition remains at the promotion interval, exacerbating the rebound effects by 0.122% per 1% FDI competition increase. This study offers a theoretical framework to explain how local government competition yields different environmental consequences. The evidence-based findings also guide policymakers to promote environmental-friendly FDI with regional conditions and curb tax competition, balancing economic and environmental priorities.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"382 ","pages":"Article 125412"},"PeriodicalIF":8.0,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850129","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}