Pub Date : 2025-12-18DOI: 10.1016/j.jhazmat.2025.140840
Rasmus Klapp, Inga Herrmann, Annelie Hedström, Noora Perkola, Marja Hagström, Hanna Niemikoski, Juho Kinnunen, Pekka Rossi, Elisangela Heiderscheidt
{"title":"Phthalates and pharmaceuticals in soil, groundwater, and surface water downgradient of a wastewater soil infiltration system","authors":"Rasmus Klapp, Inga Herrmann, Annelie Hedström, Noora Perkola, Marja Hagström, Hanna Niemikoski, Juho Kinnunen, Pekka Rossi, Elisangela Heiderscheidt","doi":"10.1016/j.jhazmat.2025.140840","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.140840","url":null,"abstract":"","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"28 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145785750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2025-12-18DOI: 10.1016/j.jhazmat.2025.140880
Danni Cui, Yuan Gui, Ziwei Guo, Huan He, Xi Deng, Xi-Zhi Niu, Yu Luo, Bin Huang, Xuejun Pan
{"title":"Interplay between manganese and algal metabolism: From metabolic regulation to photochemical feedbacks via algal organic matter","authors":"Danni Cui, Yuan Gui, Ziwei Guo, Huan He, Xi Deng, Xi-Zhi Niu, Yu Luo, Bin Huang, Xuejun Pan","doi":"10.1016/j.jhazmat.2025.140880","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.140880","url":null,"abstract":"","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"19 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145785204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Oilseed rape (Brassica napus L.) possesses a notable ability to amass cadmium (Cd) from soil, rendering it a pivotal species for investigating Cd remediation and safe utilization of Cd-enriched agricultural land. This study combined field experiments and Cd stable isotopes to investigate Cd translocation in soil-oilseed rape systems in a typical Karst region. Results indicate the water-soluble soil fraction is the primary Cd source for plants, with root uptake modulated by rhizosphere exudates. Significant Cd isotope fractionation occurred systematically within the plant: heavier isotopes progressively enriched along the translocation pathway from roots to main stems, branches, leaves, silique husks, and finally seeds. This pattern suggests preferential sequestration of lighter isotopes in vegetative tissues, likely a selfregulation/detoxification mechanism to mitigate Cd toxicity during reproduction. Oilseed rape accumulated relatively high Cd concentrations (1.89–5.45 mg kg⁻¹), with over 85% retained in the straws and only a small fraction translocated into the edible rapeseed oil, highlighting its potential for the safe utilization of soils with high geological Cd backgrounds. However, the safe use and disposal of straws should be carefully managed.
油菜（Brassica napus L.）具有显著的从土壤中富集镉的能力，是研究镉富集农田镉修复和安全利用的关键物种。本研究结合田间试验和Cd稳定同位素研究了典型喀斯特地区土壤-油菜系统中Cd的转运。结果表明，土壤水溶性组分是植物Cd的主要来源，根际分泌物调节植物对Cd的吸收。显著的Cd同位素分异在植物内部系统地发生：较重的同位素沿着从根到主茎、枝、叶、硅酸壳和最终种子的转运途径逐渐富集。这种模式表明，较轻的同位素在营养组织中优先隔离，可能是一种自我调节/解毒机制，以减轻生殖过程中的镉毒性。油菜累积的Cd浓度相对较高（1.89-5.45 mg kg -毒血症），其中85%以上的Cd残留在秸秆中，只有一小部分转移到可食用的菜籽油中，这突出了油菜在高Cd地质背景土壤中的安全利用潜力。但是，应该仔细管理吸管的安全使用和处置。
{"title":"Cadmium accumulation and isotope fractionation in soil–oilseed rape (Brassica napus L.) system in a typical Karst region","authors":"Weihai Yu, Guangyi Sun, Heng Yao, Xian Wu, Zhe Liu, Yu Lin, Yu Cheng, Jiang Li, Hua Zhang, Xinbin Feng","doi":"10.1016/j.jhazmat.2025.140869","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.140869","url":null,"abstract":"Oilseed rape (<em>Brassica napus L.</em>) possesses a notable ability to amass cadmium (Cd) from soil, rendering it a pivotal species for investigating Cd remediation and safe utilization of Cd-enriched agricultural land. This study combined field experiments and Cd stable isotopes to investigate Cd translocation in soil-oilseed rape systems in a typical Karst region. Results indicate the water-soluble soil fraction is the primary Cd source for plants, with root uptake modulated by rhizosphere exudates. Significant Cd isotope fractionation occurred systematically within the plant: heavier isotopes progressively enriched along the translocation pathway from roots to main stems, branches, leaves, silique husks, and finally seeds. This pattern suggests preferential sequestration of lighter isotopes in vegetative tissues, likely a selfregulation/detoxification mechanism to mitigate Cd toxicity during reproduction. Oilseed rape accumulated relatively high Cd concentrations (1.89–5.45<!-- --> <!-- -->mg<!-- --> <!-- -->kg⁻¹), with over 85% retained in the straws and only a small fraction translocated into the edible rapeseed oil, highlighting its potential for the safe utilization of soils with high geological Cd backgrounds. However, the safe use and disposal of straws should be carefully managed.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"63 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145777655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2025-12-17DOI: 10.1016/j.jhazmat.2025.140813
David M. Hilger, David W. Blowes, Jeff G. Bain, Carol J. Ptacek
The Giant Mine, Yellowknife, NT, Canada (1948–1999) is undergoing one of the largest remediation projects in Canadian history. Closure and long-term management of tailings containment areas (TCA) is strengthened by hydrogeochemical investigation of mechanisms controlling contaminant metal(loid) release and attenuation. The Northwest TCA (NW-TCA) at the mine (As: 2890 ± 730 mg kg⁻¹; Sb: 210 ± 71 mg kg⁻¹) stores roaster residue and flotation tailings and has been subjected to weathering for the past 25 years. The TCA also retains mine dewatering effluent (As: 22.2 ± 4.7 mg L-1; Sb: 0.79 ± 0.11 mg L-1) prior to treatment. This study integrates solid-phase characterization, aqueous geochemistry, and in situ gas measurements to delineate depth dependent dissolution and attenuation processes. Acid−base accounting indicates the tailings pose low or no acid-generation risk. Oxygen gas concentrations indicate sulfide oxidation extends to 4 m depth. Oxidative dissolution of sulfide minerals in the vadose zone releases As, Sb, Zn, Co, Ni, and Cu to the porewater. A portion of this As is subsequently incorporated into secondary Fe(III)-(oxyhydr)oxide phases. Below the oxidation zone, reducing conditions drive As and Sb release by reductive dissolution of Fe(III)-bearing roaster calcines. At the base of the TCA, highly reducing conditions result in partial As sequestration through sulfate reduction and secondary As sulfide precipitation. Infiltration of mine dewatering effluent has resulted in elevated groundwater As in areas influenced by the holding pond. Effective management of As and Sb requires consideration of spatial- and temporal-dependent mobilization and attenuation processes within the TCA.
{"title":"Release and transport of As and Sb in a tailings containment area at the Giant Mine, Northwest Territories, Canada","authors":"David M. Hilger, David W. Blowes, Jeff G. Bain, Carol J. Ptacek","doi":"10.1016/j.jhazmat.2025.140813","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.140813","url":null,"abstract":"The Giant Mine, Yellowknife, NT, Canada (1948–1999) is undergoing one of the largest remediation projects in Canadian history. Closure and long-term management of tailings containment areas (TCA) is strengthened by hydrogeochemical investigation of mechanisms controlling contaminant metal(loid) release and attenuation. The Northwest TCA (NW-TCA) at the mine (As: 2890 ± 730<!-- --> <!-- -->mg<!-- --> <!-- -->kg⁻¹; Sb: 210 ± 71<!-- --> <!-- -->mg<!-- --> <!-- -->kg⁻¹) stores roaster residue and flotation tailings and has been subjected to weathering for the past 25 years. The TCA also retains mine dewatering effluent (As: 22.2 ± 4.7<!-- --> <!-- -->mg<!-- --> <!-- -->L<sup>-1</sup>; Sb: 0.79 ± 0.11<!-- --> <!-- -->mg<!-- --> <!-- -->L<sup>-1</sup>) prior to treatment. This study integrates solid-phase characterization, aqueous geochemistry, and <em>in situ</em> gas measurements to delineate depth dependent dissolution and attenuation processes. Acid−base accounting indicates the tailings pose low or no acid-generation risk. Oxygen gas concentrations indicate sulfide oxidation extends to 4<!-- --> <!-- -->m depth. Oxidative dissolution of sulfide minerals in the vadose zone releases As, Sb, Zn, Co, Ni, and Cu to the porewater. A portion of this As is subsequently incorporated into secondary Fe(III)-(oxyhydr)oxide phases. Below the oxidation zone, reducing conditions drive As and Sb release by reductive dissolution of Fe(III)-bearing roaster calcines. At the base of the TCA, highly reducing conditions result in partial As sequestration through sulfate reduction and secondary As sulfide precipitation. Infiltration of mine dewatering effluent has resulted in elevated groundwater As in areas influenced by the holding pond. Effective management of As and Sb requires consideration of spatial- and temporal-dependent mobilization and attenuation processes within the TCA.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"20 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145777657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2025-12-17DOI: 10.1016/j.jhazmat.2025.140856
Xuan Zhang, Ruiying Shi, Xinwei Shi, Junjie Du, Yanhua He, Weitao Liu
{"title":"Ecotoxicity of 6PPD and 6PPD-Q in aquatic ecosystems: Mechanisms, influencing factors, and mitigation strategies","authors":"Xuan Zhang, Ruiying Shi, Xinwei Shi, Junjie Du, Yanhua He, Weitao Liu","doi":"10.1016/j.jhazmat.2025.140856","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.140856","url":null,"abstract":"","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"35 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145785212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2025-12-17DOI: 10.1016/j.jhazmat.2025.140858
Hugo Salazar, Pedro M. Martins, Roberto Fernández de Luis, Senentxu Lanceros-Mendez
{"title":"Remediation strategies for pharmaceutical contaminants of emerging concern – quo vadis?","authors":"Hugo Salazar, Pedro M. Martins, Roberto Fernández de Luis, Senentxu Lanceros-Mendez","doi":"10.1016/j.jhazmat.2025.140858","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.140858","url":null,"abstract":"","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"176 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145785214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2025-12-17DOI: 10.1016/j.jhazmat.2025.140867
Yaqi Wang, Junhong Bai, Yujia Zhai, Xiaoman Jiang, Jichen Qiu, Ling Zhang, Jingfeng Wang, Willie Peijnenburg, Martina G. Vijver
The widespread presence of nano/microplastics (N/MPs) and the various consequences on aquatic macrophytes have raised growing concerns. However, how the growth–defense tradeoff strategy of aquatic macrophytes responds to N/MP stress remains unclear. Here, we investigated the effects of polystyrene N/MPs at different exposure levels on Phragmites australis (P. australis), a widespread aquatic macrophyte. Under NP exposure, root biomass was significantly reduced by 26.4% at 10 mg/L, 19.3% at 50 mg/L, and 17.2% at 100 mg/L. Similarly, leaf biomass was reduced by 20.3% at 10 mg/L, 19.1% at 50 mg/L, and 25.2% at 100 mg/L. In MP treatments, root and leaf biomass were significantly increased by 11.87% and 23.47% at 100 mg/L, with no significant effects at lower levels. NPs suppressed photoprotection and root hair development and induced oxidative damage, whereas MPs had the opposite effects. Transcriptomic analysis revealed that signal transduction pathways were enriched in P. australis exposed to N/MPs, resulting in tissue-specific responses. Network analysis of gene expression modules indicated that P. australis increased ion transport and energy mobilization in defense against NPs while reducing stress responses and cellular damage to maintain growth under MP stress. Furthermore, P. australis shifted from growth to defense under NP stress by prioritizing jasmonic acid- and abscisic acid-mediated defenses and reducing the levels of growth-regulating hormones. MPs promoted plant growth by upregulating indole-3-acetic acid, gibberellin, and carbohydrate metabolism. These findings elucidate the molecular mechanism of the growth–defense tradeoff strategy induced by N/MPs, providing new insights into the toxicological effects of N/MPs on aquatic macrophytes.
{"title":"Nano/microplastics induce distinct reed growthdefense tradeoff via hormone signal transduction and carbohydrate metabolism","authors":"Yaqi Wang, Junhong Bai, Yujia Zhai, Xiaoman Jiang, Jichen Qiu, Ling Zhang, Jingfeng Wang, Willie Peijnenburg, Martina G. Vijver","doi":"10.1016/j.jhazmat.2025.140867","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.140867","url":null,"abstract":"The widespread presence of nano/microplastics (N/MPs) and the various consequences on aquatic macrophytes have raised growing concerns. However, how the growth–defense tradeoff strategy of aquatic macrophytes responds to N/MP stress remains unclear. Here, we investigated the effects of polystyrene N/MPs at different exposure levels on <em>Phragmites australis</em> (<em>P. australis</em>), a widespread aquatic macrophyte. Under NP exposure, root biomass was significantly reduced by 26.4% at 10<!-- --> <!-- -->mg/L, 19.3% at 50<!-- --> <!-- -->mg/L, and 17.2% at 100<!-- --> <!-- -->mg/L. Similarly, leaf biomass was reduced by 20.3% at 10<!-- --> <!-- -->mg/L, 19.1% at 50<!-- --> <!-- -->mg/L, and 25.2% at 100<!-- --> <!-- -->mg/L. In MP treatments, root and leaf biomass were significantly increased by 11.87% and 23.47% at 100<!-- --> <!-- -->mg/L, with no significant effects at lower levels. NPs suppressed photoprotection and root hair development and induced oxidative damage, whereas MPs had the opposite effects. Transcriptomic analysis revealed that signal transduction pathways were enriched in <em>P. australis</em> exposed to N/MPs, resulting in tissue-specific responses. Network analysis of gene expression modules indicated that <em>P. australis</em> increased ion transport and energy mobilization in defense against NPs while reducing stress responses and cellular damage to maintain growth under MP stress. Furthermore, <em>P. australis</em> shifted from growth to defense under NP stress by prioritizing jasmonic acid- and abscisic acid-mediated defenses and reducing the levels of growth-regulating hormones. MPs promoted plant growth by upregulating indole-3-acetic acid, gibberellin, and carbohydrate metabolism. These findings elucidate the molecular mechanism of the growth–defense tradeoff strategy induced by N/MPs, providing new insights into the toxicological effects of N/MPs on aquatic macrophytes.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"29 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145777656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
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