Environmental Science And Pollution Research International[JOURNAL]
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200 papers
Sustainable reuse of waste glass as fine aggregates in concrete: an approach for reduction in river sand mining and eco-friendly construction.
Narayanan P, Abdulsalam B, Rajendran S
Environ Sci Pollut Res Int · 2026 Jun · PMID 42350850 · Publisher ↗
Utilisation of alternative fine aggregates becomes crucial due to the demand. Besides, the use of river sand as fine aggregate in concrete is banned in several countries to protect riverbeds and water bodies. Consequentl...
Utilisation of alternative fine aggregates becomes crucial due to the demand. Besides, the use of river sand as fine aggregate in concrete is banned in several countries to protect riverbeds and water bodies. Consequently, the usage of crusher sand has been widely adopted. Studies on the combined use of crusher sand with waste glass powder are extremely limited. Hence, the present study focuses on the combined use of crusher sand and waste glass powder used concrete. This study examines the impact of waste glass powder as a substitute for fine aggregates in concrete. Concrete specimens were prepared by substituting crusher sand with waste glass powder in varied quantities of 10%, 20%, 30%, 40%, and 50% by weight. The mechanical and durability characteristics of waste glass used specimens were examined. The 10% waste glass used specimens exhibited enhanced compressive strength of 7.26% for 28 days of curing compared to the control specimen. The enhancement in strength is attributed to the particle packing efficiency of finer glass particles and the pozzolanic reaction. The comparable split tensile strength was also observed for WGP10 specimens. Durability assessments revealed decreased water absorption in WGP specimens, with the most noticeable improvements occurring in the WGP10 specimen, where water absorption decreased by 3% compared to 4.5% in the control specimen, resulting in a 29% reduction in porosity. Similarly, the WGP10 specimen exhibited enhanced durability under unsaturated exposure conditions, evidenced by a sorptivity coefficient of 0.0034 mm/√s, representing a 44% reduction compared with the control specimens. The improvements are primarily due to the filler effect of the ground glass particles, which reduce porosity and enhance resistance to external chemical aggression.
Microbial communities and pharmaceutical contaminants in the water-soil-plant continuum of sugarcane crops irrigated with contaminated waters from the Cauca River Valley, Colombia.
Ceballos-Castillo J, Echeverry-Gallego RA, Martínez-Pachón D … +2 more , Moncayo-Lasso A, Vanegas J
Environ Sci Pollut Res Int · 2026 Jun · PMID 42350849 · Publisher ↗
"Agricultural irrigation with contaminated water poses a major risk to food security and public health. This study examined contaminant transfer across the water-soil-plant continuum in sugarcane crops irrigated with wat...
"Agricultural irrigation with contaminated water poses a major risk to food security and public health. This study examined contaminant transfer across the water-soil-plant continuum in sugarcane crops irrigated with water from the Cauca River, Colombia. Microbial community composition was characterized using 16S rRNA gene sequencing, while pharmaceutical active compounds (PhACs) in irrigation water and sugarcane plants were quantified by UHPLC-MS/MS. Microbial analyses revealed a potential biological pathway of microorganisms from water and soil into plant endophytic tissues. Bacterial diversity decreased markedly, from more than 400 genera identified in water and soil to only 64 genera detected within endophytic tissues. Nine potentially pathogenic genera-including Escherichia-Shigella, Pseudomonas, and Bacillus- were found across all matrices, suggesting microbial internalization. Bioinformatic predictions indicated the presence of genes associated with virulence traits (e.g., antimicrobial resistance and biofilm formation) as well as beneficial functions such as nitrogen fixation and phosphate solubilization. In parallel, high concentrations of PhACs were detected in irrigation water, including valsartan (up to 1309 ng L⁻) and diclofenac (up to 969 ng L⁻), whereas none or only low concentration detected in sugarcane tissues. Overall, the primary risk to human health appears to stem not from chemical uptake but from microbial infiltration shaped by environmental pressures. Therefore, managing plant-associated microbiomes is essential to mitigate health risks while harnessing biotechnological potential for sustainable agriculture."
Effect of chromate and chromite in rainbow trout (Oncorhynchus mykiss) at environmentally relevant concentrations.
Tudor CR, Lescord GL, Lock A … +2 more , Lara-Jacobo L, Simmons DBD
Environ Sci Pollut Res Int · 2026 Jun · PMID 42348077 · Publisher ↗
The Ring of Fire is a region in the James Bay Lowlands of northern Ontario that houses a rich deposit of chromite and is slated for mining development. The goals of this study were to better understand the relative effec...
The Ring of Fire is a region in the James Bay Lowlands of northern Ontario that houses a rich deposit of chromite and is slated for mining development. The goals of this study were to better understand the relative effects of Cr(VI) to Cr(III) in rainbow trout, identify potential protein biomarkers to distinguish between Cr(VI) and Cr(III) exposure, and determine potential biomarkers for chromium exposure at concentrations below observable effect levels. Proteomic analysis on the fish plasma showed no difference in Cr(VI) and Cr(III) exposure across all concentrations and between chromium species. Proteins associated with hepatocellular carcinoma and cardiomyopathy (Trim21, Slc8a1, Myh4 and Myh6) all decreased in abundance in response to Cr(VI) and Cr(III) exposure, and decreases in these proteins are associated with adverse outcomes. Proteomic analysis of the trout livers also showed no difference in Cr(VI) and Cr(III) exposure for all concentrations and between chromium species. Again, all proteins decreased in abundance, with Gys2 being associated with hepatocellular carcinoma and it was the only protein with a notable adverse outcome. We hope that this study will advance knowledge on chromium toxicity in fish and protect all that inhabit the Ring of Fire region of Canada.
Environmental life cycle assessment of indigo rope dyeing for denim production: a case study from the Tunisian textile industry.
Abdelileh M, Haddad H, Dhaouadi H
Environ Sci Pollut Res Int · 2026 Jun · PMID 42348076 · Publisher ↗
The denim industry, a major contributor to global greenhouse gas emissions and resource consumption, is under increasing pressure to adopt more sustainable practices. While life cycle assessment (LCA) has been applied to...
The denim industry, a major contributor to global greenhouse gas emissions and resource consumption, is under increasing pressure to adopt more sustainable practices. While life cycle assessment (LCA) has been applied to denim products at the product level, large-scale, process-specific environmental assessments of conventional industrial indigo rope dyeing remain limited. The purpose of this study is therefore to provide a detailed environmental evaluation of that process, identify key environmental hotspots, and support targeted mitigation strategies at the process level. To this end, a gate-to-gate environmental LCA was conducted for conventional indigo rope dyeing IRD, using recent (2025) primary data collected from a large-scale Tunisian denim dyeing facility and complemented with relevant secondary datasets. The results indicate that the production of 1 kg of indigo-dyed rope generates 2.34 kg CO₂ eq. Contribution analysis shows that electricity and steam consumption mainly supplied by fossil-based cogeneration are the primary contributors to global warming potential (GWP) and abiotic depletion, while sodium dithionite is the main contributor to acidification. In addition, the consumption of steam and synthetic indigo dye is identified as a major contributor to terrestrial and marine aquatic ecotoxicity impacts. Scenario-based sensitivity analysis demonstrates that replacing fossil-based energy with renewable alternatives can substantially reduce the environmental burden of the dyeing process, particularly with respect to climate change and resource depletion. These findings highlight the critical role of energy transition and chemical substitution in improving the sustainability of denim dyeing.
In-situ synthesis of ZIF-8@GO composites for efficient aqueous dye removal: a systematic study of performance and reusability.
Iman K, Azam MU, Askar K … +2 more , Alcheikh N, Sabouni R
Environ Sci Pollut Res Int · 2026 Jun · PMID 42348075 · Publisher ↗
The integration of two-dimensional (2D) graphene oxide (GO) with zinc-based metal-organic frameworks (MOFs) offers significant potential for environmental remediation. In this study, an in-situ synthesized ZIF-8@GO compo...
The integration of two-dimensional (2D) graphene oxide (GO) with zinc-based metal-organic frameworks (MOFs) offers significant potential for environmental remediation. In this study, an in-situ synthesized ZIF-8@GO composite was developed, where ZIF-8 crystals are uniformly dispersed on GO nanosheets to enhance adsorption performance and structural stability. The composite was applied for the removal of malachite green (MG) dye from aqueous solutions, achieving a maximum removal efficiency of ~ 97% under favorable conditions. A systematic parametric investigation was conducted to evaluate the influence of key operational variables, including pH, adsorbent amount, contact time, initial dye concentration, and temperature, on adsorption performance. The adsorption behavior was best described by the Freundlich isotherm indicating monolayer adsorption, while kinetic analysis followed a pseudo-second-order model. Thermodynamic analysis revealed that the adsorption process is spontaneous and endothermic. The ZIF-8@GO composite exhibited excellent reusability, maintaining high removal efficiency over eight cycles. Furthermore, its applicability was validated in real-water systems and competitive adsorption conditions, demonstrating strong selectivity toward MG dye. With a maximum adsorption capacity of (q) 211.4 mg g⁻ at 298 K, this study highlights a scalable, stable, and efficient adsorbent platform for practical wastewater treatment applications.
Retraction Note: Effects of organic and chemical fertilizers on the growth, heavy metal/metalloid accumulation, and human health risk of wheat (Triticum aestivum L.).
Ugulu I, Ahmad K, Khan ZI … +3 more , Munir M, Wajid K, Bashir H
Environ Sci Pollut Res Int · 2026 Jun · PMID 42343008 · Publisher ↗
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Surfactant-free synthesis of pdcu bimetallic foam and its catalytic reduction for 4-nitrophenol.
Liu J, Xiang H, Yang J … +1 more , Liu X
Environ Sci Pollut Res Int · 2026 Jun · PMID 42340591 · Publisher ↗
4‑Nitrophenol (4‑NP) pollution causes serious environmental risks. Traditional catalysts and surfactant‑modified metal foams suffer from insufficient active sites, poor stability and low catalytic efficiency, restricting...
4‑Nitrophenol (4‑NP) pollution causes serious environmental risks. Traditional catalysts and surfactant‑modified metal foams suffer from insufficient active sites, poor stability and low catalytic efficiency, restricting their practical industrial applications. To solve these problems, this work develops a green, surfactant‑free one‑pot route to fabricate PdCu bimetallic foam catalysts with a unique 3D interwoven nanowire network, which effectively overcomes the above limitations. The catalyst is synthesized via room‑temperature reduction of Pd(NO) and CuSO precursors by NaBH, followed by water‑ethanol alternate washing and freeze‑drying. This fabrication method is simple, scalable and eco‑friendly without harsh synthetic conditions. Key structural and compositional advantages include: the 3D porous network reduces mass‑transfer resistance; surfactant‑free synthesis yields a clean catalyst surface to facilitate active site‑substrate interactions; ultrathin nanowires maximize exposed active sites; and Pd‑Cu electronic synergy decreases Pd consumption and optimizes electronic configuration for improved catalytic activity. Among as‑prepared catalysts, PdCu exhibits the optimal performance, achieving complete 4‑NP reduction within 269 s with a high apparent rate constant (K = 29.18 × 10‑3 s) and TOF value of 2309 h, as well as good reusability after five consecutive cycles. This green synthetic strategy and structural merits offer a facile pathway to design high‑performance bimetallic catalysts for environmental remediation.
FeO-activated pistachio shell biochar as a magnetic support for enhanced toluene removal: performance of an immobilized biohybrid system.
Gallego-Mena L, Hernández-Ospina DA, Martel R … +2 more , Brar SK, Sánchez-Silva L
Environ Sci Pollut Res Int · 2026 Jun · PMID 42340590 · Publisher ↗
Developing efficient and sustainable strategies for removing monoaromatic pollutants remains a major challenge in environmental engineering. This study evaluated a biohybrid system based on immobilising a bacterial co-cu...
Developing efficient and sustainable strategies for removing monoaromatic pollutants remains a major challenge in environmental engineering. This study evaluated a biohybrid system based on immobilising a bacterial co-culture of Microbacterium esteraromaticum and Serratia fonticola onto FeO-activated pistachio shell biochar for aerobic toluene removal from water. The performance of free and immobilised cells was compared at initial toluene concentrations of 50 and 200 mg L⁻. Growth assays showed strain-dependent tolerance, with M. esteraromaticum displaying the highest resistance, while the co-culture maintained stable growth across all conditions. Immobilisation on magnetically activated biochar enhanced biomass retention and biodegradation compared to free cells and nonmagnetic supports, particularly at high pollutant loads. The immobilised co-culture achieved over 90% toluene removal within 48 h at 200 mg L⁻. These findings highlight magnetically activated agro-waste biochar as an effective and sustainable support for biohybrid systems, offering a promising approach for treating monoaromatic hydrocarbons in contaminated waters.
Comparative evaluation of machine learning for prediction of water quality index in constructed wetlands.
Davoodi A, Mohammadpour R, Sabzevari T
Environ Sci Pollut Res Int · 2026 Jun · PMID 42337199 · Publisher ↗
Constructed wetlands play a crucial role in urban runoff treatment, enhancing water quality and maintaining ecosystem health, while the water quality index (WQI) serves as a key parameter for evaluating their performance...
Constructed wetlands play a crucial role in urban runoff treatment, enhancing water quality and maintaining ecosystem health, while the water quality index (WQI) serves as a key parameter for evaluating their performance. This study provides a comprehensive assessment of WQI prediction in a constructed wetland at Universiti Sains Malaysia, using 442 samples and 11 physicochemical parameters evaluated across six input scenarios. Feature selection was performed using Pearson correlation and feature-importance rankings from extreme gradient boosting (XGBoost) and categorical boosting (CatBoost) to create reduced-input combinations. SHapley Additive exPlanations (SHAP) analysis further indicated that WQI predictions were mainly driven by organic/solid load and nitrogen-related variables (e.g., chemical oxygen demand (COD), total suspended solids (TSS), and ammoniacal nitrogen (AN)). Fourteen ML models, including adaptive boosting (AdaBoost), adaptive neuro-fuzzy inference system, artificial neural network (ANN), CatBoost, extreme learning machine, gradient boosting regressor, histogram gradient boosting (HGB), Huber regressor, multiple linear regression, ridge regression, stochastic gradient descent regressor (SGD), support vector regression (SVR), XGBoost, and a hybrid Grey Wolf Optimizer-ANN, were developed and evaluated using four statistical metrics such as root mean square error (RMSE), coefficient of determination (R2), percent bias (PBIAS), and mean absolute relative error (MARE), complemented by LP-based multi-metric ranking. Across all scenarios (mean LP; lower is better), CatBoost (0.44) and HGB (0.46) achieved the best overall performance, while SGD (0.91) and SVR (0.75) ranked worst. Notably, several top-performing models maintained competitive performance under reduced inputs (e.g., CatBoost's LP value of 0.56 in the four-feature scenario), supporting practical WQI estimation when monitoring variables are limited or costly. These findings highlight the critical role of both input selection and model choice in developing robust, scalable frameworks for WQI prediction.
Evaluation of the genes CYPA, BZR1, and CAD1 in the attenuation of cadmium in seedlings of the species Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby (PARICÁ) under different concentrations of 24-epibrassinolide.
Dos Santos Ribeiro E, de Oliveira Neto CF, da Silva Filho E … +8 more , Hamoy IG, de Araújo Brito AE, de Araújo DG, do Nascimento JF, de Figueiredo ELP, Dos Santos Costa D, Barros LTC, Amancio VO
Environ Sci Pollut Res Int · 2026 Jun · PMID 42337198 · Publisher ↗
The Amazonian species paricá (Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby) accumulates cadmium (Cd) primarily in the roots, but the lack of understanding of gene modulation in response to this metal an...
The Amazonian species paricá (Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby) accumulates cadmium (Cd) primarily in the roots, but the lack of understanding of gene modulation in response to this metal and the phytohormonal mechanisms complicates its relevance in the rehabilitation of degraded areas. Therefore, the present study aims to examine the expression of the CYPA and BZR1 genes, precursors of 24-EBL, in the production of chelating proteins by the CAD1 gene in seedlings of the Paricá species, under various concentrations of CdCl and 24-EBL. The experiment was conducted in a growth room at the Laboratory of Studies on Biodiversity of Higher Plants (EBPS) at the Federal Rural University of Amazon (UFRA), Belém-Pará Campus, following a completely randomized experimental design (CRD), in a 4 × 3 factorial scheme, totaling 60 experimental units with four treatments of CdCl (0, 50, 100, and 150 µM) and three doses of 24-epibrassinolide (0, 20, and 40 nM). The data were subjected to analysis of variance (ANOVA) (p < 0.05), and the differences between treatments were analyzed using Tukey's test (p < 0.05). The biometric variables indicated a significant reduction in root length due to the harmful effect of CdCl. Additionally, losses in Chl a, Chl b, and Chl a + b were observed due to the entry of Cd into the leaf tissues. Despite this, the CYPA, BZR1, and CAD1 genes showed greater expression in the aerial part with varying doses of 24-EBL, while CAR and ACN were affected by increased CdCl, indicating a genetic adjustment in the upper parts of the plants to cope with Cd toxicity and maintain biological functions.
Circular utilisation of coal mine waste: enhancing geotechnical performance through biogenic stabilisation using indigenous Sporosarcina pasteurii PS3A.
Sarma S, Mishra AK
Environ Sci Pollut Res Int · 2026 Jun · PMID 42337197 · Publisher ↗
Microbially induced calcite precipitation (MICP) is widely gaining popularity as a bio-mediated technique for soil stabilisation and recycling in an eco-friendly way. In the present study, MICP was employed to enhance th...
Microbially induced calcite precipitation (MICP) is widely gaining popularity as a bio-mediated technique for soil stabilisation and recycling in an eco-friendly way. In the present study, MICP was employed to enhance the geotechnical properties of coal mine waste, a heterogeneous waste material unsuitable for engineering applications. To ensure the field-scale applicability of MICP and to address the shortcomings of the uniform distribution of calcite precipitations in high-fines-content matrices, a novel bacterial incorporation strategy was developed. This approach employed a native ureolytic bacterium, Sporosarcina pasteurii PS3A cells, for calcium carbonate precipitation through urea hydrolysis, resulting in the formation of mineral bridges that improved particle binding and reduced permeability. The chemical composition of the biogenic precipitate under different treatment conditions was probed by X-ray photoelectron spectroscopy, and its morphology was assessed using field-emission scanning electron microscopy. A ~ 17-fold increase in unconfined compressive strength in samples containing 22% fines was observed post-treatment. Optimisation of bacterial concentrations and cementitious solution molarity enabled precise control over volumetric shrinkage, which was reduced to 1-5%, improving dimensional stability across treated soils. The ultrasonic pulse velocity testing confirmed cementation, with a strong empirical correlation to unconfined compressive strength. These findings establish the necessity and effectiveness of targeted methodologies for applying MICP to fine-grained industrial wastes, advancing its viability as a sustainable alternative to conventional stabilisation techniques within the framework of the circular economy and low-carbon geotechnical engineering.
Answer to comments on "Effect of mineralization of erythrina poeppigiana particles and accelerated carbonation on the properties of fiber cement".
Assane LMJ, Borges IO, Batista FG … +5 more , de Sousa Arantes L, de Mello Innocentini MD, de Almeida Mesquita RG, Junior JBG, Mendes LM
Environ Sci Pollut Res Int · 2026 Jun · PMID 42334776 · Publisher ↗
Abstract loading — click title to view on PubMed.
Multi-scale assessment of metal and metalloid contamination and bioaccumulation in clams (Ruditapes spp.) along the French coasts: implications for environmental and human health risks.
Mogeon J, Le Mer G, François Y … +5 more , Danis A, Poirier L, Amiot C, Decottignies P, Zalouk-Vergnoux A
Environ Sci Pollut Res Int · 2026 Jun · PMID 42334775 · Publisher ↗
Metal and metalloid contamination from terrestrial and maritime human activities increasingly threatens coastal ecosystems, inducing ecotoxicological effects and potential risks to human health. Filter-feeding intertidal...
Metal and metalloid contamination from terrestrial and maritime human activities increasingly threatens coastal ecosystems, inducing ecotoxicological effects and potential risks to human health. Filter-feeding intertidal species such as Ruditapes spp. can bioaccumulate these contaminants and are therefore widely used for coastal environmental monitoring. For ecotoxicological purposes, seasonal and spatial concentrations of metals (Al, Cd, Cr, Co, Cu, Fe, Mn, Ni, Pb, V and Zn) and the metalloid As were analysed in sediments and clam tissues from the French English Channel and Atlantic coasts, using a multi-scale approach (local, regional and national). Spatial differences were mainly observed at local and regional scales, whereas no marked differences were detected at the national scale. Bioaccumulation in Ruditapes spp. was compared with Mytilus edulis and Crassostrea gigas, two other commonly used sentinel species. The species- and site-specific accumulation patterns suggested that employing multiple species could enhance environmental monitoring strategies. As showed the highest bioaccumulation values, followed by Zn, Cu, Ni and Co. Finally, environmental and human health risk assessments indicated that, among the studied elements, only As may raise concern in some sites, while risks associated with other metals remained low.
Towards overcoming the limitations of conventional water quality indices: Development and implementation of a parametric index.
Inkani AI, Mashi SA, Jenkwe ED … +2 more , Etuk NL, Sani S
Environ Sci Pollut Res Int · 2026 Jun · PMID 42334774 · Publisher ↗
Conventional Water Quality Indices (WQIs) are commonly used to assess anthropogenic impacts on aquatic systems, but they often oversimplify complex parameter interactions, rely on subjective weighting, and inadequately c...
Conventional Water Quality Indices (WQIs) are commonly used to assess anthropogenic impacts on aquatic systems, but they often oversimplify complex parameter interactions, rely on subjective weighting, and inadequately capture spatial or temporal variations. This study hypothesizes that a parameter-based index can enhance diagnostic precision and provide clearer insights into pollutant behavior. The objective was to develop and apply a Parametric WQI that disaggregates water quality into parameter-specific sub-indices for high-resolution monitoring without subjective weighting. Water samples were collected during the peak rainy season from Wupa Sewage Treatment Plant (WSTP), Abuja, Nigeria-covering influent, effluent, the point of discharge (POD), and sites 1-2 km downstream. Thirteen chemical parameters, including nutrients, organic load indicators, and heavy metals, were analyzed. Pollutant levels peaked at the POD but generally declined downstream due to dilution, sedimentation, and microbial degradation. Dissolved Oxygen (DO) increased downstream in June and August but dropped in July (-4.30% at 2 km). TDS rose at the POD in July (+ 16.67%), while TSS fell sharply near the POD (-86.64% in June). Nutrients exhibited strong variability: NH₄⁺ increased (+ 60%), PO₄⁻ rose sharply (+ 185%), and NO₃⁻ declined (-38.46%), suggesting eutrophication risk. Cu⁺ spiked (+ 134.17% at POD), whereas Pb⁺ and Fe⁺ declined downstream. PWQI classified water quality as poor to very poor at influent, moderate at effluent, and good to excellent downstream. The approach enhances interpretative accuracy, identifies residual contamination (notably NH₄⁺, TSS, and alkalinity), and offers a robust, transferable framework for sustainable wastewater and river system management in tropical environments.
Chronic exposure to sublethal concentrations of Boral® 500 SC (sulfentrazone) induces sex- and age-dependent metabolic and behavioral effects in Drosophila melanogaster.
Gayer MC, Paz MEG, Carriço MRS … +5 more , Flores NGB, Denardin ELG, Paim CS, Roehrs R, Puntel RL
Environ Sci Pollut Res Int · 2026 Jun · PMID 42334773 · Publisher ↗
Sulfentrazone (SULF) is a widely used herbicide characterized by environmental persistence and potential off-target dispersion, yet its chronic sublethal effects on insects remain insufficiently understood. Because conve...
Sulfentrazone (SULF) is a widely used herbicide characterized by environmental persistence and potential off-target dispersion, yet its chronic sublethal effects on insects remain insufficiently understood. Because conventional toxicity assessments often prioritize lethality endpoints, they may overlook functional impairments that compromise organismal fitness. Here, we used Drosophila melanogaster as an integrative insect model to evaluate whether chronic exposure to sublethal concentrations of the commercial formulation Boral® 500 SC (SULF) affects development, female reproduction, locomotor performance, metabolic status, longevity, and stress resistance. The herbicide did not significantly affect developmental parameters, but significantly reduced longevity in both female and male flies. Moreover, exposure impaired climbing locomotor performance and exacerbated age-related functional decline. In females, a significant reduction in body weight was observed at 7 days of age, along with decreased carbohydrate levels at 30 days, whereas males exhibited increased lipid accumulation at 30 days of age. Oviposition rate was significantly reduced at 0.25 mg/L and 0.5 mg/L, and females exposed to 0.5 mg/L also displayed reduced resistance to paraquat-induced oxidative stress. Principal component analysis (PCA) revealed significant correlations between metabolic and behavioral parameters, highlighting the central role of energy reserves in mediating physiological and behavioral dysfunctions. Collectively, these findings demonstrate that Boral® 500 SC induces biologically relevant sublethal effects in D. melanogaster, suggesting that current regulatory methodologies may substantially underestimate the ecological risks of SULF to insects, thereby potentially contributing to population declines in non-target species.
Stress tolerance indices reveal variation among local maize (Zea mays L.) genotypes under polyethylene microplastic contamination.
Garfansa MP, Saitama A, Putripertiwi D … +3 more , Zaini AH, Iswahyudi I, Amani SA
Environ Sci Pollut Res Int · 2026 Jun · PMID 42329550 · Publisher ↗
Microplastic contamination in agricultural soils may threaten maize productivity and genotype-dependent resilience. This study evaluated the responses of three local maize genotypes, Sukmaraga, Elos, and Duko, to polyeth...
Microplastic contamination in agricultural soils may threaten maize productivity and genotype-dependent resilience. This study evaluated the responses of three local maize genotypes, Sukmaraga, Elos, and Duko, to polyethylene (PE) microplastic contamination and compared their relative tolerance under controlled conditions. The genotypes were grown under four PE levels, namely 0, 0.5, 1.0, and 1.5% (w/w). Plant growth, biomass, root elemental concentration, antioxidant enzyme activity, and fresh dehusked ear weight-based tolerance indices were assessed to compare genotype performance under PE stress. Increasing PE levels reduced growth and biomass in all genotypes, with the strongest decline observed in Duko at the highest PE concentration. Root carbon and nitrogen concentrations remained comparatively stable in Sukmaraga and Elos but decreased in Duko under moderate to high PE levels, accompanied by stronger antioxidant enzyme induction. Tolerance indices further differentiated genotype performance, with Elos showing the highest mean productivity (MP = 120.40) and stress tolerance index (STI = 1.08) at 1.5% PE, whereas Duko showed the highest tolerance index (TOL = 6.09) and the lowest STI (0.87). Overall, the results indicate genotype-dependent variation in maize response to PE contamination and identify Elos as the most promising genotype within the tested set under the experimental conditions. These findings provide an initial comparative screening framework for evaluating local maize responses to PE microplastic stress.
Bifunctional PEI@MSN@COP nanohybrid for efficient adsorption and fluorescence sensing of mercury (II) in water.
Sabzi FE, Assadi MG, Valizadeh H … +1 more , Abdolmohammad-Zadeh H
Environ Sci Pollut Res Int · 2026 Jun · PMID 42323796 · Publisher ↗
Mercury contamination remains a major environmental concern because of the toxicity, persistence and bioaccumulation of Hg ions. This study successfully synthesised a hierarchical bifunctional nanohybrid (PEI@MSN@COP) by...
Mercury contamination remains a major environmental concern because of the toxicity, persistence and bioaccumulation of Hg ions. This study successfully synthesised a hierarchical bifunctional nanohybrid (PEI@MSN@COP) by integrating polyethyleneimine (PEI) and a nitrogen/phosphorus-rich COF-like polymer (HM-COP) onto mesoporous silica nanoparticles (MSNs) for the concurrent adsorption and fluorescence-based detection of Hg in water. The produced nanohybrid was thoroughly characterised using FT-IR, PXRD, TGA, BET, FE-SEM, TEM, zeta potential analysis and ICP-OES studies. The results confirmed successful hierarchical functionalisation while preserving the mesoporous architecture of the material. Owing to the synergistic effects of the mesoporous structure and donor-rich functional groups, PEI@MSN@COP exhibited a high Hg adsorption capacity of 1058.41 mg g under optimal conditions. The adsorption data showed the best overall agreement with the Temkin isotherm and pseudo-second-order kinetic models. These findings indicate heterogeneous adsorption sites and surface-controlled adsorption behaviour. Adsorption data showed the best overall agreement with the Temkin isotherm and pseudo-second-order kinetic models, indicating heterogeneous adsorption sites and surface-controlled adsorption behaviour. Thermodynamic analysis revealed that the adsorption process was spontaneous and endothermic. In addition to adsorption, PEI@MSN@COP exhibited rapid and selective fluorescence quenching toward Hg, with a detection limit of 0.63 ppm and a response time of approximately 3-5 min. Competitive adsorption studies and industrial wastewater experiments further demonstrated the preferential adsorption of Hg under chemically complex conditions together with favourable operational stability of the nanohybrid. The integrated adsorption and fluorescence sensing properties demonstrate the potential of PEI@MSN@COP as a multifunctional platform for Hg monitoring and remediation in contaminated water systems.
Control of alluvial aquifer architecture on reductive and oxidative dechlorination of chloroethenes.
Puigserver D, Herrero J, Cortés A … +3 more , Millán A, Parker BL, Carmona JM
Environ Sci Pollut Res Int · 2026 Jun · PMID 42322371 · Publisher ↗
Groundwater quality and ecosystem function are significantly influenced by aquifer-hyporheic zone systems, particularly in cases where such systems interact with influent rivers. This study investigates the impact of the...
Groundwater quality and ecosystem function are significantly influenced by aquifer-hyporheic zone systems, particularly in cases where such systems interact with influent rivers. This study investigates the impact of the geological structure on natural attenuation of chloroethenes in such connected systems. Our research focuses on understanding the complex interactions between geological features and microbial dynamics, shedding light on perchloroethylene transformation from DNAPL sources. Field investigations were conducted in an alluvial aquifer with fluvial paleochannels dominated by gravels and sands separated by silts and clays in floodplains. A multidisciplinary approach was employed, combining sediment geochemistry, chloroethene isotopic fractionation (δC), and microbial community characterization. The results revealed distinct microbial assemblages associated with different geological structures, highlighting hydrogeological heterogeneity's role in shaping microbial diversity and activity. Specific microbial genera involved in chloroethene dechlorination across paleochannels, interchannel areas, and the hyporheic zone on the bank of an influent river were identified, illustrating differential microbial contributions to contaminant degradation. Furthermore, the study elucidated medium factors such as hydraulic conductivity and organic carbon availability that modulate microbial community structure and function. These findings enhance understanding of microbial-mediated contaminant attenuation in heterogeneous subsurface environments, informing groundwater remediation strategies and supporting sustainable groundwater management and environmental protection.
Hydrocarbon and heavy metal pollution in Antarctica: ecological impacts and remediation strategies.
Goh WX, Tae RS, Lim ZS … +4 more , Wong CY, Ahmad SA, Kok YY, Convey P
Environ Sci Pollut Res Int · 2026 Jun · PMID 42322370 · Publisher ↗
Antarctica's remote wilderness is increasingly impacted by human activities such as tourism, scientific research, and historical and contemporary exploitation of marine resources. Despite regulatory measures, these activ...
Antarctica's remote wilderness is increasingly impacted by human activities such as tourism, scientific research, and historical and contemporary exploitation of marine resources. Despite regulatory measures, these activities continue introducing pollutants, notably diesel hydrocarbons, heavy metals, and plastics, into the environment. Fuel leaks are key anthropogenic inputs of hydrocarbons into Antarctic waters, while heavy metal contamination, including elevated levels of lead, cadmium, and chromium, is found in diesel-exposed soils, often exceeding permissible limits. Co-contamination presents significant environmental challenges for bioremediation. Microbial bioremediation has shown promise for addressing hydrocarbon contamination, but the extreme Antarctic environmental conditions and the presence of co-occurring heavy metals can inhibit microbial survival and metabolic activity, limiting remediation efficiency. While bacteria are commonly studied for bioremediation, microalgae, known for their capacity to bind and remove heavy metals, represent an underexplored alternative. Further investigation is needed to understand how heavy metals influence the biodegradation of diesel hydrocarbons. This review documents the occurrence and persistence of hydrocarbon pollution in Antarctica, its ecological impacts, and current remediation techniques, including physical, chemical, and biological methods, as well as promising integrated physical-biological remediation systems specifically designed for implementation in Antarctica's environment. It also addresses heavy metal co-contamination, the dynamics of their spread and mobility, and the complex influence these metals exert on hydrocarbon bioremediation processes.
Comment on "Effect of mineralization of Erythrina poeppigiana particles and accelerated carbonation on the properties of fiber cement".
Sati DM, Shinde VD, Agarwal C
Environ Sci Pollut Res Int · 2026 Jun · PMID 42319698 · Publisher ↗
Abstract loading — click title to view on PubMed.
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