ChemospherePub Date : 2025-08-23DOI: 10.1016/j.chemosphere.2025.144621
Shafiq Uz Zaman , Sikander Rafiq , Abulhassan Ali , Muhammad Shozab Mehdi , Amber Arshad , Saif-ur Rehman , Nawshad Muhammad , Muhammad Irfan , Muhammad Shahzad Khurram , Muhammad Khaliq U. Zaman , Abdulkader S. Hanbazazah , Hooi Ren Lim , Pau Loke Show
{"title":"Retraction notice to “Recent advancement challenges with synthesis of biocompatible hemodialysis membranes” [Chemosphere 307, November 2022, 135626]","authors":"Shafiq Uz Zaman , Sikander Rafiq , Abulhassan Ali , Muhammad Shozab Mehdi , Amber Arshad , Saif-ur Rehman , Nawshad Muhammad , Muhammad Irfan , Muhammad Shahzad Khurram , Muhammad Khaliq U. Zaman , Abdulkader S. Hanbazazah , Hooi Ren Lim , Pau Loke Show","doi":"10.1016/j.chemosphere.2025.144621","DOIUrl":"10.1016/j.chemosphere.2025.144621","url":null,"abstract":"","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"387 ","pages":"Article 144621"},"PeriodicalIF":8.1,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144982421","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}
ChemospherePub Date : 2025-08-23DOI: 10.1016/j.chemosphere.2025.144639
Shahjalal Khandaker , Mir Ferdous Chowdhury , Md Rabiul Awual , Aminul Islam , Takahiro Kuba
{"title":"Retraction notice to “Efficient cesium encapsulation from contaminated water by cellulosic biomass based activated wood charcoal” [Chemosphere 262, January 2021, 127801]","authors":"Shahjalal Khandaker , Mir Ferdous Chowdhury , Md Rabiul Awual , Aminul Islam , Takahiro Kuba","doi":"10.1016/j.chemosphere.2025.144639","DOIUrl":"10.1016/j.chemosphere.2025.144639","url":null,"abstract":"","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"387 ","pages":"Article 144639"},"PeriodicalIF":8.1,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144982381","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}
ChemospherePub Date : 2025-08-21DOI: 10.1016/j.chemosphere.2025.144657
V. Ferrari , D. Prevedelli , E. Bergami
{"title":"Pelagia noctiluca as a new model organism in marine ecotoxicology: effects of common surfactants","authors":"V. Ferrari , D. Prevedelli , E. Bergami","doi":"10.1016/j.chemosphere.2025.144657","DOIUrl":"10.1016/j.chemosphere.2025.144657","url":null,"abstract":"<div><div>Marine ecotoxicology typically relies on a limited number of invertebrate models used to assess the effects of anthropogenic stressors, including pollutants. Nevertheless, selected model species may not fully represent marine communities and Including sensitive and ecologically relevant organisms is thus crucial. Despite jellyfish are exposed to pollutants via multiple pathways, few species have been investigated for ecotoxicity purposes focusing on the ephyra stage as suitable due to its susceptibility to toxic compounds. Here we explore the use of the mauve stinger <em>P. noctiluca</em> (ephyra stage) as a new model organism in ecotoxicology, by evaluating its responses to two common surfactants. Following optimization of test conditions, <em>P. noctiluca</em> ephyrae were exposed to reference toxicants (SDS and Tween 20). After 24 h and 48 h, both lethal (mortality) and sub-lethal endpoints (behaviour) were evaluated. Both surfactants caused a concentration-dependent increase in mortality, with a milder acute toxicity of Tween 20 (LC<sub>50(24 h,48 h)</sub> = 0.045 ± 0.00 %) compared to SDS (LC<sub>50(24 h)</sub> = 7.5 ± 0.6 mg L<sup>−1</sup>, LC<sub>50(48 h)</sub> = 6.1 ± 0.8 mg L<sup>−1</sup>) on <em>P. noctiluca</em> ephyrae. The exposure resulted in evident alterations on ephyrae morphology, with tissue decomposition and lappet damage. The frequency of pulsations was affected at both time-points by surfactants and alterations in the swimming quality were recorded, along with altered lappet contractions or immobility. Our findings show acute toxicity of SDS and Tween 20 to <em>P. noctiluca</em> ephyrae. Their high sensitivity underscores their potential use in ecotoxicological research, improving the impact assessment of pollutants on marine life.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"387 ","pages":"Article 144657"},"PeriodicalIF":8.1,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887159","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}
ChemospherePub Date : 2025-08-21DOI: 10.1016/j.chemosphere.2025.144649
Laurie Michel , Shaghayegh Ramezany , Daniel Houle , Jean-Philippe Bellenger
{"title":"Biomonitoring of atmospheric depositions of rare earth elements and other elements in Quebec, Canada","authors":"Laurie Michel , Shaghayegh Ramezany , Daniel Houle , Jean-Philippe Bellenger","doi":"10.1016/j.chemosphere.2025.144649","DOIUrl":"10.1016/j.chemosphere.2025.144649","url":null,"abstract":"<div><div>Despite the growing demand for rare earth elements (REE) in technological applications and the potential risks associated with their environmental release, few studies have focused on atmospheric levels of REE. Nowadays, in Canada, only one active mine is exploiting REE ores. In Quebec (eastern Canada), several exploration projects are underway; however, no mine is currently active, and few human activities are likely to represent a source of atmospheric REE. Thus, we established the first estimates of atmospheric depositions of REE and other elements (e.g., transition metals) in Quebec and identified the current emission sources by comparing these depositions across different land uses (forest, rural, and anthropogenic). We also report on some elements of interest for moss physiology and biogeochemistry (e.g., K, Na, Mg, and Ca). We employed a biomonitoring approach, utilizing <em>Pleurozium schreberi</em> as an indicator of elemental composition in atmospheric deposition. 210 sites were sampled across southern Quebec, in the most densely populated areas of Quebec. Elements were analyzed by ICP-MS and ICP-OES. Atmospheric depositions of REE (and other elements) are low in Quebec compared to other biomonitoring studies worldwide, with ∑REE average values of 2.63 ppm in the mosses. Hotspots were detected in urban, tourist, or industrial areas, with concentrations reaching up to ∑REE = 32.14 ppm. Overall, the origin was mainly terrigenous, as shown by the enrichment factor (EF ≈ 1 for all REE). However, a few elements (Cd, Zn, Ag, B, Mn, Sb, K, Ca, and Cu) exhibited EF > 10, indicating contamination at nearly all locations.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"387 ","pages":"Article 144649"},"PeriodicalIF":8.1,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887089","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":"An enhanced degradation of polyhydroxyalkanoates (PHAs) using adaptive laboratory methods: A sustainable approach alternates to genetic engineering","authors":"Young-Cheol Chang , Masamitsu Shimadzu , DuBok Choi , Omprakash Sarkar , M. Venkateswar Reddy","doi":"10.1016/j.chemosphere.2025.144654","DOIUrl":"10.1016/j.chemosphere.2025.144654","url":null,"abstract":"<div><div>Polyhydroxybutyrate (PHB) is a biodegradable plastic synthesized by several bacterial species, regarded as a sustainable alternative to petroleum-derived plastics owing to its biodegradability, biocompatibility, and renewable production processes. Although PHB exhibits inherent biodegradability, its natural degradation can be slow and inefficient in real-world conditions. This study employed the Adaptive Laboratory Evolution (ALE) method to enhance the degradation of PHB in natural environments. This study started with an examination of the degradation processes of PHB and poly (butylene adipate-co-terephthalate) (PBAT) mulch films in soil using two bacterial strains, <em>Ralstonia insidiosa</em> C1 and <em>Comamonas</em> sp. K5. A two stage ALE methodology achieved 70–80 % degradation of PHB, while a four-stage approach resulted 100 % degradation. <em>R. insidiosa</em> C1 degraded 100 % PHB within 144 h at 1.5 % (w/v), whereas <em>Comamonas</em> sp. K5 within 120 h at 1.0 % (w/v). Further, the gene expression during ALE showed that a 1 % (w/v) PHB significantly increased the gene expression levels at 1.7 times than the baseline. Conversely, the 2 % (w/v) PHB resulted in lower gene expressions indicating a correlation between ALE's degradation activity enhancement and <em>phaZ</em> gene expression levels. The identification of 3-hydroxybutyrate (3-HB) and acetoacetate via NMR analysis substantiates that <em>Ralstonia</em> sp. C1 effectively degrades PHB into 3-HB as a principal metabolite resulting from the hydrolysis of PHB's ester bonds. Finally, strain C1's PHB production was examined in the context of ALE; a reduction in PHB production compared to non-ALE, suggesting that ALE may compromise PHB production. The study advocates further research into ALE's effectiveness for synthetic and bioplastic degradation in real-world scenarios, particularly under varying environmental conditions.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"387 ","pages":"Article 144654"},"PeriodicalIF":8.1,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887090","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":"Early ageing in Caenorhabditis elegans caused by exposure to airborne benzene, toluene, ethylbenzene and xylenes (BTEX)","authors":"Marcell Valandro Soares , Larissa Marafiga Cordeiro , Aline Franzen da Silva , Gustavo Ugalde , Luiza Venturini , Félix Alexandre Antunes Soares , Daiana Silva Ávila","doi":"10.1016/j.chemosphere.2025.144624","DOIUrl":"10.1016/j.chemosphere.2025.144624","url":null,"abstract":"<div><div>Air pollution is a major environmental and health concern. It has been linked to diseases and contributes to aging. However, there is a lack of studies on the effects of realistic mixtures of air pollutants, notably solvents. Therefore, we investigated the aging effects of benzene, toluene, ethylbenzene, and xylenes (BTEX) airborne exposure using the <em>Caenorhabditis elegans (C. elegans)</em> model, simulating a real scenario. Nematodes at larval stage four (L4) were exposed to benzene (0.9 ppm), toluene (40 ppm), ethylbenzene (25 ppm), and xylenes (17 ppm), either individually or in combination, for seven days in a chamber designed to contain volatile compounds. The results showed that the mixture caused early aging in nematodes, with decreased mobility and mitochondrial function on days 4 (15 % and 40 %), 7 (27 % and 10 %), and 10 (30 % and 5 %). The mixture also increased the damage to physiological and neuronal parameters on days 4 (26 % and 5 %), 7 (70 % and 43 %), and 10 (95 % and 25 %). The Frailty Index analysis revealed elevated values (index above 0.5) on all days in the mixture group compared to the control and isolated groups. The combination index demonstrated that synergism was predominant among the majority of the endpoints assayed. Our findings showed that low-level exposure to BTEX compounds could reduce the healthspan of <em>C. elegans</em>, reinforcing the utility of this model for aging and ecotoxicological studies, and underscoring the risks associated with prolonged exposure to BTEX pollutants in association.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"387 ","pages":"Article 144624"},"PeriodicalIF":8.1,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887160","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}
ChemospherePub Date : 2025-08-20DOI: 10.1016/j.chemosphere.2025.144646
Flora Troina Maraslis , Nathália de Assis Aguilar Duarte , Emilene Arusievicz Nunes , Lindiane Eloisa de Lima , Juliana Mara Serpeloni , Milena Horvat , José L. Domingo , Fernando Barbosa Jr. , Gustavo Rafael Mazzaron Barcelos
{"title":"Polymorphisms in Hg-related genes and their impact on mercury burden and oxidative stress biomarkers among riverside Amazonian populations","authors":"Flora Troina Maraslis , Nathália de Assis Aguilar Duarte , Emilene Arusievicz Nunes , Lindiane Eloisa de Lima , Juliana Mara Serpeloni , Milena Horvat , José L. Domingo , Fernando Barbosa Jr. , Gustavo Rafael Mazzaron Barcelos","doi":"10.1016/j.chemosphere.2025.144646","DOIUrl":"10.1016/j.chemosphere.2025.144646","url":null,"abstract":"<div><div>Mercury (Hg) is a widespread environmental contaminant, with methylmercury (MeHg) being its most toxic and bioavailable form. MeHg accumulates in aquatic food chains, leading to significant human exposure, particularly in Amazonian riverine populations where fish is a dietary staple. This study examined the impact of genetic polymorphisms on Hg exposure levels and oxidative stress biomarkers in 329 individuals from riverside communities in the Brazilian Amazon.</div><div>Hg concentrations in blood, plasma, and hair were measured using inductively coupled plasma mass spectrophotometer, while TaqMan genotyping assays were used to analyze polymorphisms in genes involved in Hg toxicokinetics and toxicodynamics (<em>GSS</em>, <em>GLRX</em>, <em>TXNRD</em>, <em>SELENOP</em>, <em>MT</em>, <em>SLC6</em>, and <em>SLC11</em>). Oxidative stress biomarkers were assessed through spectrophotometric analysis.</div><div>Statistical analyses revealed significant genetic associations with Hg levels and oxidative stress markers. Individuals with the <em>TXNRD2</em> rs5748469 AA genotype had higher blood and plasma Hg concentrations, while <em>SLC6A15</em> rs11116642 CT carriers had lower Hg levels and increased glutathione peroxidase (GPX) activity. <em>GLRX2</em> rs912071 CC carriers exhibited reduced GPX activity, particularly among males and non-smokers.</div><div>These findings contribute to a better understanding of individual susceptibility to Hg toxicity, particularly in populations chronically exposed to MeHg.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"387 ","pages":"Article 144646"},"PeriodicalIF":8.1,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887161","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}