Bulletin of Environmental Contamination and Toxicology最新文献

{"title":"Elaeis guineensis Jacq. as a Bioindicator of Aluminum Hydroxide-Induced Cytogenotoxicity in Root Meristems.","authors":"Jesús David Quintero Caleño, Laura Yolima Moreno Rozo, Seir Antonio Salazar Mercado","doi":"10.1007/s00128-026-04254-7","DOIUrl":"10.1007/s00128-026-04254-7","url":null,"abstract":"<p><p>This study evaluates the cytotoxic effects of aluminum hydroxide (Al(OH)₂) on root growth and cell division of Elaeis guineensis roots. Using Al(OH)₃ concentrations ranging from 5 to 250 mg/L, both radicle growth and nuclear and chromosomal abnormalities, including mitotic indices and the presence of micronuclei, anaphase bridges, and other alterations, were analyzed. The results showed that elevated concentrations of Al(OH)₃ (particularly 150 to 250 mg/L) significantly inhibit root growth, reduce the mitotic index, and increase the frequency of nuclear abnormalities. The presence of aluminum-induced reactive oxygen species (ROS) appears to cause DNA damage, which contributes to the formation of micronuclei and other genetic abnormalities. These findings underscore the cytotoxic and genotoxic potential of aluminum in acidic soils, which may negatively impact oil palm productivity in cropping contexts. It is concluded that exposure to aluminum hydroxide represents a risk to the genetic stability of E. guineensis and suggests the need to adequately manage aluminum levels in soils used for this crop.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"116 6","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147961785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wildfire Dominates Spatio-Temporal Patterns of Ammonia Concentrations in Australia During the Warm Season.","authors":"Qingmei Wang, Ligang Wang","doi":"10.1007/s00128-026-04261-8","DOIUrl":"10.1007/s00128-026-04261-8","url":null,"abstract":"<p><p>Atmospheric ammonia (NH₃) is a critical environmental contaminant impacting ecosystem integrity and human health. In Australia, while anthropogenic sources are well-characterized, the contribution of wildfires to NH₃ pollution remains poorly quantified. This study presents a high-resolution (0.25°) assessment of wildfire-induced NH₃ concentrations across the whole Australia from July 2022 to December 2024, derived from chemical transport model simulations constrained by satellite fire observations. Analysis of warm seasons (September-February) reveals that wildfires dominated atmospheric NH₃ contamination, contributing over 80% of total concentrations during major fire events. These findings highlight wildfires as a critical episodic source of reactive nitrogen pollution with significant implications for air quality toxicology, ecosystem eutrophication, and public health exposure in fire-prone regions.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"116 6","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147961832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterizing Airborne Particulate Matter During Late-Season Soybean Production Using SEM/EDX Automated Single Particle Analyses and Machine Learning: A Preliminary Study in the Mississippi Delta.","authors":"Matthew T Moore, Lucas J Heintzman, Juanita Rausch, David Jaramillo-Vogel, Martin A Locke","doi":"10.1007/s00128-026-04259-2","DOIUrl":"10.1007/s00128-026-04259-2","url":null,"abstract":"<p><p>Airborne particulate matter (PM) may originate from exposed agricultural fields and activities during dry periods. A preliminary study assessed sources of airborne PM in 2023, starting two weeks before soybean harvest. Three passive samplers were placed alongside a 101-ha field in Mississippi, USA. Collection substrates were in each sampler for two-week intervals during pre-harvest; harvest; post-harvest disking; and post-harvest hipping. Substrates were analyzed by scanning electron microscopy-energy dispersive X-ray spectroscopy automated single particle analysis combined with machine learning to identify particle types and estimate concentrations in PM_80-10 and PM_10-2.5. At pre-harvest, 56 wt. % of particulates (PM_10-2.5) were biogenic/organic, while 41 wt.% were minerals. During and after harvest, 36 wt.% of particulates were biogenic/organic and 61 wt.% were minerals. High concentrations of phosphorus, primarily biogenic and mineral, were noted. Results demonstrate the need for inclusion of airborne PM investigations to assess the potential impacts of intensive agricultural activities.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"116 6","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147961803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Polyethylene Microplastics on Seed Germination, Seedling Growth, and Physiological Characteristics of Maize.","authors":"Jiaqiang Liu, Lihong Chen, Mei Gao, Chao Zhang, Shuming Ju, Yujie Sun, Yan Xu, Xuan Wang, Vezhenkova Irina","doi":"10.1007/s00128-026-04252-9","DOIUrl":"10.1007/s00128-026-04252-9","url":null,"abstract":"<p><p>Microplastics (MPs), widely present in soil environments, pose an increasingly potential threat to soil ecological health and agricultural production safety. This study systematically evaluated the effects of irregular polyethylene (PE) microplastics at different particle sizes (28 μm, 87 μm) and concentrations (0, 200, and 1000 mg/L) on maize seed germination and seedling growth through germination tests and hydroponic experiments. The results indicated that seed germination was less influenced by particle size but more significantly affected by concentration. In particular, under high concentration and large particle size PE treatments, germination rate, germination potential, germination index, and seed vigor index decreased by 13.08%, 24.14%, 23.02%, and 59.57%, respectively, compared to the control group. Both PE particle size, concentration, and their interaction significantly influenced maize seedling growth. The inhibition rates of stem length, shoot biomass, and root biomass ranged from 0% to 34.36%, 9.25% to 18.74%, and − 30.07% to − 24.1%, respectively. Meanwhile, the photosynthetic pigment content in leaves was also significantly affected, with chlorophyll a and chlorophyll b contents decreasing by 6.4~25.5% and 8.5~24.5%, respectively, while carotenoid content increased markedly by 30.4% to 78.4%. In addition, PE exposure induced an oxidative stress response, characterized by a 36.4~81.8% decrease in root activity and a 4~552.5% increase in malondialdehyde (MDA) content. In summary, polyethylene microplastics adversely affect maize seed germination, seedling growth, and physiological characteristics, with these effects being regulated by both particle size and concentration.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"116 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147759065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Source Apportionment of Nitrate Pollution in the Ling River Basin Based on Nitrogen and Oxygen Isotopes and Hydrochemical Analysis.","authors":"Lili Fan, Haiming Lu, Liangang Chen, Haifei Sha, Kai Wang, Qiu Jin, Shucheng Wu, Qinxue Xu, Junhong Chen, Qixiao Zhang, Minghui Liu, Lang Tan","doi":"10.1007/s00128-026-04236-9","DOIUrl":"10.1007/s00128-026-04236-9","url":null,"abstract":"<p><p>Nitrate pollution in the Ling River Basin has emerged as a pressing environmental issue requiring immediate attention. To effectively prevent and control nitrogen pollution in the watershed, this study systematically investigated the sources, migration and transformation mechanisms of nitrate in surface water through an integrated approach combining hydrochemical analysis, nitrogen and oxygen isotope techniques, and a Bayesian mixing model (SIAR). The results indicate that the dominant anion in the water is HCO2−, while Ca2+ is the predominant cation, classifying the hydrochemical type as HCO3–Ca.Mg, with the water exhibiting a slightly alkaline nature. The distribution patterns of hydrogen and oxygen isotopes (δD-H2O and δ18O–H2O) suggest that atmospheric precipitation is the primary source of surface water recharge. Nitrate concentrations remained relatively stable across the wet, normal, and dry seasons. Isotopic analysis of nitrogen and oxygen further revealed mixed sources of nitrate, including soil nitrogen, chemical fertilizers, domestic sewage, and atmospheric deposition. Among these, nitrification is the dominant process in the nitrogen cycle of the basin, whereas denitrification plays a minor role. Quantitative analysis based on the SIAR model showed slight seasonal variations in the contribution rates of nitrate sources: in the wet season, soil nitrogen, chemical fertilizers, domestic sewage, and atmospheric deposition accounted for 50.0%, 23.0%, 17.3%, and 9.7%, respectively; in the normal season, the contributions were 50.0%, 25.9%, 15.0%, and 9.1%, respectively; and in the dry season, 54.6%, 18.8%, 17.8%, and 8.8%, respectively. Therefore, soil nitrogen and chemical fertilizers are identified as the primary sources of nitrate pollution in the Ling River Basin. This study provides critical theoretical support for the control of agricultural non-point source pollution and the protection of aquatic environment.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"116 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147759138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of Heavy Metal Contamination, Human Health Risks and Phytoremediation Potential of Lotus Plant (Nelumbo nucifera) from Vellayani Lake, South India.","authors":"Sonu Sasidharan, Vijaykumar Pattathil, Jaya Divakaran Sarasamma","doi":"10.1007/s00128-026-04253-8","DOIUrl":"10.1007/s00128-026-04253-8","url":null,"abstract":"<p><p>The present study investigates concentration of heavy metals in the lotus plant parts and sediment samples collected from Vellayani freshwater lake in south India. Our analysis reveals that the Lake is highly contaminated with heavy metals and these metals stay accumulated in different parts of lotus plant at very high concentrations. Maximum accumulation was observed in plant leaves and the distribution of heavy metals are in the order: Fe > Mn > Zn > Ni> Cu > Cd > Pb > Cr. The accumulation of heavy metals in the plant parts are in the order: root > leaves > flower > petioles > thalamus. The bioconcentration factor and translocation factor point out that the plant exhibits phytoremediation potential and consumption of the plant parts is harmful to humans due to high accumulation of heavy metals. Results reveals that this plant exhibits significant efficiency in heavy metal removal, suggesting its potential as an environmentally sound remediation strategy.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"116 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147759144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of Plant and Soil Heavy Metal Pollution in an Abandoned Mining Area in Türkiye.","authors":"Rena Hüseyinova, Hamdi Güray Kutbay, Onur Basançelebi, Erkan Yalçin, Hasan Cesur","doi":"10.1007/s00128-026-04248-5","DOIUrl":"10.1007/s00128-026-04248-5","url":null,"abstract":"<p><p>This study was conducted in the northeast of Türkiye in an abandoned mine area. There were significant differences between study sites with respect to all heavy metals in the leaves of tree species. Statistically significant differences were found between the mine and control sites with respect to bark Zn, Pb, and Cu concentrations. Significant differences were found between mine and control sites in the soils of A. glutinosa, while no significant differences were found in other species. Negative values were found for Igeo values. It was found that S. alba is a good bioindicator for Cu and Pb pollution, while P. Tremula is a good bioindicator for Zn pollution. For grass species, H. vulgare is a good bioindicator for Zn and Cu pollution, while A. sativa is a good bioindicator for Pb pollution.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"116 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147759063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inhibition of Hazardous Heavy Metals Release by Polymer-Coating of Phosphogypsum: Toward Sustainable Soil Amendment Strategies.","authors":"Cemre Avşar Kaya, Ertuğrul Çelik, Morteza Servatan, Suna Ertunç","doi":"10.1007/s00128-026-04251-w","DOIUrl":"10.1007/s00128-026-04251-w","url":null,"abstract":"<p><p>Soil preservation is crucial for maintaining agricultural productivity amid global population growth and food demand. However, industrialization and heavy metal contamination have limited sustainable farming practices. Phosphogypsum (PG), a by-product of phosphate fertilizer production, poses environmental risks due to heavy metal content and accumulation. This study investigates the safe reuse of PG in soils through surface modification with polymeric coatings (PEG, PVP and DX) to reduce heavy metal leaching. PG samples coated at mass ratios (1:1, 1:2, 1:3) were analyzed by XRF, FT-IR, zeta potential and spectrophotometric methods, while morphology and particle size were examined via TEM and DLS. Results show that polymer coatings improve the chemical stability of PG and limit heavy metal mobility, enhancing its suitability for agricultural use. Coated samples exhibit 20, 30, 19, 10 and 10% releases of Cr2+, Mn2+ Cu2+, Hg+ and Pb2+ heavy metal cations respectively which were significantly lower than heavy metals release measured in bare PG. This approach offers an effective PG management strategy, promoting soil protection and environmental sustainability with further studies needed on economic feasibility for large-scale applications.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"116 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147759142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatial Distribution of Sediment Pesticides Concentrations in Streams of the Maritime Region of Canada.","authors":"Benoit A Lalonde","doi":"10.1007/s00128-026-04241-y","DOIUrl":"10.1007/s00128-026-04241-y","url":null,"abstract":"<p><p>This study measured pesticide concentrations at 51 sites in streams in three maritime provinces of Canada in 2020–2021. There were 50 pesticides analysed in each sediment samples. Most of those pesticides had concentrations below the detection limit of the laboratory. However, nine pesticides had detections that ranged from one to nine sites. Terbufos and parathion were the two most detected pesticides of this study. Surprisingly, terbufos has not been registered for use in Canada since 2012 which showcases the prevalence of some legacy contamination in sediments. Furthermore, the concentrations of terbufos, chlorpyrifos and clothianidin exceeded the calculated sediment threshold which indicates the potential for ecological harm. The results align with other recent research, suggesting that pesticide occurrence in sediment is complex and not explained by a single factor like organic matter or chemical properties alone. Instead, it is a result of multiple interacting factors, including land use, the pesticide’s solubility, its concentration in the surrounding water, and the persistence of legacy products.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"116 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13124949/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147759140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of the Ca and Mg Presence on the Adsorption Process of Pb²⁺ by Biomaterials in Natural Waters.","authors":"María de Jesús González-Guadarrama, María Aurora Armienta-Hernández","doi":"10.1007/s00128-026-04245-8","DOIUrl":"10.1007/s00128-026-04245-8","url":null,"abstract":"<p><p>The presence of lead in freshwater can be a global problem. Lead is a metal with two oxidation states 2+ and 4+, the first value is the former most common under environmental conditions. This element has a strong affinity with elements such as oxygen, nitrogen, sulphur, and carbon, which are present in biomaterials. However, in natural water samples it is possible to find other elements with the same oxidation state that, such as Mg and Ca, which can compete for adsorption sites. Furthermore, the biomaterial can introduce these elements into the samples. This study aims to investigate the impact of water hardness on the adsorption of lead by biomaterials derived from waste fruits, such as orange peel, avocado seeds, and tamarind seeds, in natural freshwater samples. To evaluate the influence of water chemistry on removal efficiency, samples with distinct major ion compositions (particularly water hardness) were collected from different water bodies to conduct lead adsorption experiments. The results show that the presence of Ca²⁺ and Mg²⁺ ions affects the lead adsorption process by biomaterials. Therefore, waste disposal is environmentally friendly. Orange peel is the best option for removing lead and reducing water hardness when samples values are high.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"116 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13124892/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147759082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}