Chemosphere最新文献_第3页

The effect of free ammonia, free nitrous acid, dissolved oxygen and salinity on hypersaline nitritation stability 游离氨、游离亚硝酸盐、溶解氧和盐度对高盐硝化稳定性的影响

IF 8.1 2区环境科学与生态学

Chemosphere Pub Date : 2025-07-21 DOI: 10.1016/j.chemosphere.2025.144576

Samah Abasi, Sheldon Tarre, Michal Green

{"title":"The effect of free ammonia, free nitrous acid, dissolved oxygen and salinity on hypersaline nitritation stability","authors":"Samah Abasi, Sheldon Tarre, Michal Green","doi":"10.1016/j.chemosphere.2025.144576","DOIUrl":"10.1016/j.chemosphere.2025.144576","url":null,"abstract":"<div><div>The prevalence of saline and hypersaline wastewaters from aquaculture and various industrial sources is increasing, often containing elevated levels of ammonia that require treatment prior to environmental discharge. In order to treat hypersaline wastewater using partial nitritation-anammox or other nitrogen removing processes involving nitritation, it is essential to develop and investigate an efficient, stable, and reliable hypersaline nitritation reactor. This study examines the stability of hypersaline (4 % salinity) nitritation by investigating the effect of free ammonia (FA), free nitrous acid (FNA), dissolved oxygen (DO) and high salinity on the inhibition of nitrite-oxidizing bacteria (NOB) in continuous and mixed fixed bed reactors. Long-term (202 days) stable nitritation was maintained under hypersaline conditions using high FA concentrations (1–10 mg N/L). At low FA levels (<1 mg N/L), the NOB <em>Nitrospina</em> proliferated and nitritation was lost under both high and low DO conditions. Using high FA, nitritation could be recovered even following repeated cycles of NOB proliferation. Under FNA concentrations of 0.11 mg N/L, the NOB <em>Nitrococcus</em> proliferated. Salinity alone above 5 % was shown to selectively inhibit NOB proliferation without significantly impacting nitritation performance. The dominant ammonia-oxidizing bacteria belonged to the species <em>Nitrosococcus oceani</em> and genus <em>Nitrosomonas</em>. Under non-saline conditions, similar reactors showed that only under high FNA (0.11 mg N/L) were NOB inhibited. These results provide valuable insights into the nitritation processes under hypersaline conditions, which have been less investigated compared to non-saline conditions.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"385 ","pages":"Article 144576"},"PeriodicalIF":8.1,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144670254","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}

引用次数: 0

Study on the synergistic mechanism, apparent kinetics with reaction order, and toxicity of degradation products of norfloxacin by zinc oxygen vacancies and Z-scheme heterojunction photocatalysis 锌氧空位和z型异质结光催化诺氟沙星降解产物的增效机理、随反应顺序的表观动力学及毒性研究

IF 8.1 2区环境科学与生态学

Chemosphere Pub Date : 2025-07-21 DOI: 10.1016/j.chemosphere.2025.144586

Xinyao Wang , Zhiling Huang , Yue Meng , Bo Xie , Zheming Ni , Shengjie Xia

{"title":"Study on the synergistic mechanism, apparent kinetics with reaction order, and toxicity of degradation products of norfloxacin by zinc oxygen vacancies and Z-scheme heterojunction photocatalysis","authors":"Xinyao Wang , Zhiling Huang , Yue Meng , Bo Xie , Zheming Ni , Shengjie Xia","doi":"10.1016/j.chemosphere.2025.144586","DOIUrl":"10.1016/j.chemosphere.2025.144586","url":null,"abstract":"<div><div>In this paper, ZnCdS/ZnCr-LDHs Z-scheme heterojunction containing zinc-oxygen bi-vacancy (V<sub>Zn + O</sub>) were constructed and applied to photodegradation of norfloxacin (NOR) in water. A comprehensive investigation was conducted into the effects of concentration of V<sub>Zn</sub> in the composite, amount of catalyst, concentration of norfloxacin, temperature of the solution, and pH on the degradation activity. It comprehensively investigates the reaction kinetics, establishing a complete kinetic equation and determining the activation energy. Key parameters including catalyst dosage, pH, and reaction orders are systematically analyzed to elucidate their influence on the reaction process. The reaction mechanism of photodegradation of NOR is deeply analyzed from the perspectives of thermodynamics and kinetics. Z-scheme heterojunction not only facilitates the separation of photogenerated charges, but also preserves photogenerated electrons with strong reducing ability and photogenerated holes with high oxidizing ability; The existence of double vacancies not only provides more active sites for the material, but also regulates the band structure of the material, which contributes to the generation of free radicals. The synergistic effect of Z-scheme heterojunction and V<sub>Zn + O</sub> resulted in a removal rate of 89 % for NOR with a concentration of 20 mg/L after 90 min of visible light irradiation. In addition, based on ESR and XPS test results as well as DFT calculations, the synergistic mechanism of Z-scheme heterojunction and V<sub>Zn + O</sub> in the photodegradation process was analyzed in detail from the aspects of band structure, electron transfer, free radical species, and built-in electric field. The pathway of NOR photodegradation and the toxicity analysis of intermediate products were also provided.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"385 ","pages":"Article 144586"},"PeriodicalIF":8.1,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672670","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}

引用次数: 0

Reusable graphene oxide-based composite membranes for highly efficient and fast removal of pesticides from real water matrixes 可重复使用的氧化石墨烯基复合膜，用于高效快速地去除真实水基质中的农药

IF 8.1 2区环境科学与生态学

Chemosphere Pub Date : 2025-07-21 DOI: 10.1016/j.chemosphere.2025.144571

Elena Pagalday , Hugo Salazar , Carmen R. Tubio , Beatriz Alonso , Tobias Kuhnt , Ahmed Elmaraki , Leire Ruiz-Rubio , Senentxu Lanceros-Mendez

{"title":"Reusable graphene oxide-based composite membranes for highly efficient and fast removal of pesticides from real water matrixes","authors":"Elena Pagalday , Hugo Salazar , Carmen R. Tubio , Beatriz Alonso , Tobias Kuhnt , Ahmed Elmaraki , Leire Ruiz-Rubio , Senentxu Lanceros-Mendez","doi":"10.1016/j.chemosphere.2025.144571","DOIUrl":"10.1016/j.chemosphere.2025.144571","url":null,"abstract":"<div><div>Water contamination caused by the excessive use pesticides is a growing concern, as these chemicals threaten both human health and ecosystems biodiversity. Current remediation methods are often ineffective in addressing these contaminants, highlighting the need for new solutions. This work reports on graphene oxide (GO)-based composite membranes developed through different strategies for the adsorption of thiacloprid (THI) from wastewater. GO shows adsorption capacity of 35.7 mg/g after only 3 min, and composite membranes incorporating GO into poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) were prepared by the thermally induced phase separation (TIPS) and salt leaching (SL) methods. The SL-prepared membranes exhibited superior porosity, hydrophilicity, and active site availability, achieving the highest THI adsorption capacity of 84.6 mg/g for the 40 % GO@PVDF-HFP sample, after 45 min. Adsorption kinetics and isotherms followed a pseudo-second order and Langmuir models, respectively, indicating a chemisorption process. These membranes demonstrated effective THI removal from both surface and groundwater effluents and a consistent performance over multiple cycles. The adsorption mechanism was also unveiled by confirming hydrogen bonding as the main contribution to the adsorption process.</div><div>These findings underscore the suitability of GO-based membranes for water remediation, offering robust performance under environmentally relevant scenarios, making them suitable for advanced water treatment technologies.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"385 ","pages":"Article 144571"},"PeriodicalIF":8.1,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680197","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}

引用次数: 0

Pyrolysis-GC/MS calibration for environmental quantification of tire tread: Standards and marketplace averaged elastomer subunit profiles 轮胎胎面环境量化的热解-气相色谱/质谱校准：标准和市场平均弹性体亚单位剖面

IF 8.1 2区环境科学与生态学

Chemosphere Pub Date : 2025-07-19 DOI: 10.1016/j.chemosphere.2025.144554

Stephanie A. Thornton , Sashoy G. Milton , Lauren R. Lautermilch , Andrey Massarsky , Kenneth M. Unice

{"title":"Pyrolysis-GC/MS calibration for environmental quantification of tire tread: Standards and marketplace averaged elastomer subunit profiles","authors":"Stephanie A. Thornton , Sashoy G. Milton , Lauren R. Lautermilch , Andrey Massarsky , Kenneth M. Unice","doi":"10.1016/j.chemosphere.2025.144554","DOIUrl":"10.1016/j.chemosphere.2025.144554","url":null,"abstract":"<div><div>Pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS) enables quantification of tire and road wear particles (TRWP) in environmental matrices, but method refinements are needed to account for elastomer subunit variations. Environmentally distributed elastomers are a composite of formulations from many tire manufacturers, which can be represented by specially prepared reference materials. Thus, this study analyzed cryogenically milled tire tread (CMTT) composite materials blended from United States and European Union market-representative tire mixtures to determine operationally defined styrene (<em>S</em><sub><em>t</em></sub>) and 1,4-butadiene (<em>B</em><sub><em>t</em></sub>) monomer subunit content fractions in synthetic rubber (SR) fractions. Bootstrap resampling with least squares optimization revealed similar <em>B</em><sub><em>t</em></sub> (0.64–0.73) and <em>S</em><sub><em>t</em></sub> (0.06–0.09) contents across market composites, though precision decreased with larger particle sizes. Calibration polymer solutions stored at 4 °C maintained stability for three months, with response ratio changes below 15 %. Although alternative internal standards were evaluated, structural similarity between target and calibration polymers proved essential for complex environmental matrices, with up to 20 % quantitation differences observed when using dissimilar standards. This study demonstrates that market-representative composite CMTT materials provide operationally-defined elastomer subunit profiles that account for commercial variability in tire formulations. This approach enables accurate environmental TRWP quantification without requiring individual elastomer characterization.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"385 ","pages":"Article 144554"},"PeriodicalIF":8.1,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662844","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}

引用次数: 0

Synergistic approaches for effective estrogen degradation in wastewater treatment: wetland-UV/O3 pilot-scale investigation 废水处理中有效降解雌激素的协同方法：湿地- uv /O3中试研究

IF 8.1 2区环境科学与生态学

Chemosphere Pub Date : 2025-07-19 DOI: 10.1016/j.chemosphere.2025.144585

Tong Zhang , Ting Feng

{"title":"Synergistic approaches for effective estrogen degradation in wastewater treatment: wetland-UV/O3 pilot-scale investigation","authors":"Tong Zhang , Ting Feng","doi":"10.1016/j.chemosphere.2025.144585","DOIUrl":"10.1016/j.chemosphere.2025.144585","url":null,"abstract":"<div><div>The presence of estrogens in wastewater treatment plant effluent is increasingly recognized as a significant concern for environmental health. In this study, we showcase the efficacy of a pilot-scale 5 m<sup>3</sup>/d artificial wetland-UV/O<sub>3</sub> advanced oxidation treatment system in consistently achieving removal efficiencies exceeding 80 % for two key estrogens: nonylphenol and bisphenol A. Specifically, the system achieved average removal rates of 95.32 % for nonylphenol and 92.66 % for bisphenol An under optimal conditions where the constructed wetlands were combined with O<sub>3</sub> and fully open UV lamps. Additionally, this integrated system effectively reduced other pollutants, such as ammonia nitrogen (<1 mg/L), chemical oxygen demand (<20 mg/L), biochemical oxygen demand (<4 mg/L), total phosphorus (<0.2 mg/L), and color (less than 10° after UV/O<sub>3</sub> treatment). The design and operation of this innovative treatment process offer a promising solution for mitigating estrogen contamination in sewage treatment plant effluent. Furthermore, the experimental data gathered provide valuable insights for potential future scaling of this technology.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"385 ","pages":"Article 144585"},"PeriodicalIF":8.1,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662850","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}

引用次数: 0

Towards a cleaner process for furfural production and pectin extraction from brewery and winery residues 从啤酒厂和酒窖残留物中提取糠醛和果胶的清洁工艺研究

IF 8.1 2区环境科学与生态学

Chemosphere Pub Date : 2025-07-18 DOI: 10.1016/j.chemosphere.2025.144574

Celina Podetti , Daniela Zalazar-García , Virginia Castro , Laura Noel García , M. Paula Fabani , Rosa Rodríguez , Germán Mazza

{"title":"Towards a cleaner process for furfural production and pectin extraction from brewery and winery residues","authors":"Celina Podetti , Daniela Zalazar-García , Virginia Castro , Laura Noel García , M. Paula Fabani , Rosa Rodríguez , Germán Mazza","doi":"10.1016/j.chemosphere.2025.144574","DOIUrl":"10.1016/j.chemosphere.2025.144574","url":null,"abstract":"<div><div>The production of furfural and pectin extraction from brewer's spent grain (BSG) and grape marc (GM) represents a sustainable strategy for valorizing agro-industrial residues either through the recovery or the transformation into high-value compounds. Furfural, a versatile platform molecule with broad industrial applications, and pectin, widely used in the pharmaceutical and food industries, were extracted using an environmentally benign method combining phosphoric acid, thermal treatment, and ultrasound. A Box–Behnken experimental design was employed to evaluate the influence of pH, extraction time, and temperature on product yields. Mathematical models were developed to describe the relationships between the experimental conditions and extraction efficiency, and multi-objective optimization using genetic algorithms was applied to simultaneously maximize furfural concentration and pectin yields. BSG outperformed GM due to its higher hemicellulose and pectin content, yielding greater product concentrations. Optimal simultaneous production of furfural and pectin extraction conditions for BSG were 74.5 °C, 45.1 min, and pH 1.7, resulting in 103.26 mg g<sup>−1</sup> dry weight (dw) of furfural and 2.83 % (28.3 mg g<sup>−1</sup> dw) pectin. The combination of ultrasound and phosphoric acid effectively disrupted the lignocellulosic matrix, enhancing the recovery of these valuable bioproducts. This approach aligns with the principles of green chemistry and circular economy, offering a promising pathway for the integrated valorization of agro-industrial by-products.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"385 ","pages":"Article 144574"},"PeriodicalIF":8.1,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653177","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}

引用次数: 0

Human exposure to PFASs in a contaminated area: associations between water and serum levels 人类在污染地区暴露于全氟辛烷：水和血清水平之间的关系

IF 8.1 2区环境科学与生态学

Chemosphere Pub Date : 2025-07-18 DOI: 10.1016/j.chemosphere.2025.144575

Anna Maria Ingelido , Valentina Fuscoletti , Annalisa Abballe , Mario Cerroni , Elena Dellatte , Nicola Iacovella , Valentina Marra , Silvia Valentini , Luca Lucentini , Elena De Felip , Francesca Russo

{"title":"Human exposure to PFASs in a contaminated area: associations between water and serum levels","authors":"Anna Maria Ingelido , Valentina Fuscoletti , Annalisa Abballe , Mario Cerroni , Elena Dellatte , Nicola Iacovella , Valentina Marra , Silvia Valentini , Luca Lucentini , Elena De Felip , Francesca Russo","doi":"10.1016/j.chemosphere.2025.144575","DOIUrl":"10.1016/j.chemosphere.2025.144575","url":null,"abstract":"<div><div>Per- and poly- fluorinated substances (PFASs) are industrial chemicals which may exert toxic effects on humans. Widespread use, environmental mobility and persistence enabled these substances to spread and accumulate in the environment.</div><div>In this paper, we investigated the determinants of human exposure in a hotspot area characterized by PFAS water contamination. The area covers approximately 600 km<sup>2</sup> and is inhabited by about 150000 people. We examined the relationship between water and serum PFAS concentrations. We estimated PFAS weekly intakes, serum to public drinking water ratios, and clearance factors, and analysed the influence of individual characteristics of participants in PFAS elimination.</div><div>Our results confirmed that water was a major source of PFAS exposure in the study area. For most participants, weekly PFAS intakes from water exceeded the tolerable weekly intake set by the European Food Safety Authority. Median serum to public drinking water ratios ranged from 5.3 to 1086 for the considered PFASs. Clearance rates were lower in males than in females, even after accounting for potential confounding factors. This sex difference in clearance rates supports the hypothesis that lower PFAS levels in females may be due to faster elimination.</div><div>Our findings contribute to a better understanding of human exposure to PFASs through water and can support the refinement of prevention and remediation strategies.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"385 ","pages":"Article 144575"},"PeriodicalIF":8.1,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662849","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}

引用次数: 0

Time-course detoxification of environmental metallic nanoparticles in human lung cells (A549) 环境金属纳米颗粒在人肺细胞中的解毒作用（A549）

IF 8.1 2区环境科学与生态学

Chemosphere Pub Date : 2025-07-18 DOI: 10.1016/j.chemosphere.2025.144568

Iara da C. Souza , Mariana Morozesk , Caroline M. Souza , Leticia S. Andrade , Vitor A.S. Mendes , Vinicius C. Azevedo , Rafaella Monteiro , Silvia T. Matsumoto , Magdalena V. Monferrán , Daniel A. Wunderlin , Michael Elliott , Marisa N. Fernandes

{"title":"Time-course detoxification of environmental metallic nanoparticles in human lung cells (A549)","authors":"Iara da C. Souza , Mariana Morozesk , Caroline M. Souza , Leticia S. Andrade , Vitor A.S. Mendes , Vinicius C. Azevedo , Rafaella Monteiro , Silvia T. Matsumoto , Magdalena V. Monferrán , Daniel A. Wunderlin , Michael Elliott , Marisa N. Fernandes","doi":"10.1016/j.chemosphere.2025.144568","DOIUrl":"10.1016/j.chemosphere.2025.144568","url":null,"abstract":"<div><div>Atmospheric particulate material (PM10), collected near to a metallurgical industrial area, caused internalisation of metallic nanoparticles. This is the first study of the bioavailability and detoxification pathway of metallic nanoparticles (NP) internalised into lung cells. Adenocarcinoma human alveolar epithelial lung cells (A549) were exposed to PM<sub>10</sub> arising from a polluted area affected by smelting activity in Brazil (Vitória, ES). A time-course ultrastructural analysis (0, 3, 6, 9, 12 and 24h) was used to verify the internalisation process and its subsequent detoxification. The metal bioaccumulation, biochemical changes and cytotoxicity analyses were evaluated in lung cells after 24 h exposure to 0, 1, 5, 10, 20 and 40 μg PM10 mL<sup>-1</sup>. Time-course ultrastructural analysis showed that NP were internalised in both cytoplasm and nucleus after 1h exposure. Vesicles around internalised NP started forming after 3h; detoxification vesicles increased accumulating more NP between 6 and 12h exposure. Exocytosis was observed after 24h exposure. Five out of 28 analyzed metals (Al, Ti, Y, Fe and Ce) were bioaccumulated in the exposed cells. The emerging contaminants Ce, Y and Ti were mainly responsible for cytotoxicity effects. To our knowledge, this is the first record of the sequence of internalisation-toxicity, followed by physiological and biochemical responses, in lung cells exposed to atmospheric PM<sub>10</sub> from a metallurgical area. This indicates the need for specific regulation of atmospheric PM from the smelting industry worldwide, considering the presence and toxic levels of emerging metallic contaminants (EMCs).</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"385 ","pages":"Article 144568"},"PeriodicalIF":8.1,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653175","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}

引用次数: 0

Environmental carcinogens and cancer Risk: Sustainable strategies for public health protection 环境致癌物和癌症风险：保护公众健康的可持续战略

IF 8.1 2区环境科学与生态学

Chemosphere Pub Date : 2025-07-17 DOI: 10.1016/j.chemosphere.2025.144580

Idris Zubairu Sadiq

{"title":"Environmental carcinogens and cancer Risk: Sustainable strategies for public health protection","authors":"Idris Zubairu Sadiq","doi":"10.1016/j.chemosphere.2025.144580","DOIUrl":"10.1016/j.chemosphere.2025.144580","url":null,"abstract":"<div><div>Environmental carcinogens, including air pollutants, heavy metals, and industrial chemicals, are increasingly generated due to the advancement in technology and contribute to the growing trend of cancer. Most of these comes from industrial activities, vehicle exhaust systems, and inadequate disposal of waste and poses danger to the general population. Carcinogens cause cancer by damaging DNA, inducing mutations, and disrupting key cellular processes like cell cycle regulation and apoptosis. They can also trigger, chronic inflammation, oxidative stress and epigenetic modifications, further promoting tumor initiation and progression This letter to the editor focuses on carcinogens, their sources and the various cancers they caused and the possible ways to mitigate the risk and protect general public. Major recommendations include higher compliance with the existing legislation in the field of environment protection, the promotion of the usage of eco-friendly technologies by industries, the raising of awareness among populace and the necessity to protect green zones in cities and turn them into cleaner areas. In addition, there is a need to invest in state-of-the-art equipment for research and early diagnosis in order to decrease incidences of cancer occurrence, and safeguard population health.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"385 ","pages":"Article 144580"},"PeriodicalIF":8.1,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653176","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}

引用次数: 0

Synergistic optimization of bioretention cells for antibiotic removal and denitrification by iron-copper bimetallic catalytic system with Phalaris arundinacea 环蕨铁铜双金属催化体系生物保留细胞对抗生素去除和反硝化的协同优化

IF 8.1 2区环境科学与生态学

Chemosphere Pub Date : 2025-07-17 DOI: 10.1016/j.chemosphere.2025.144572

Yajun Wang , Chutong Qin , Wenxuan Li , Yihua Zhao

{"title":"Synergistic optimization of bioretention cells for antibiotic removal and denitrification by iron-copper bimetallic catalytic system with Phalaris arundinacea","authors":"Yajun Wang , Chutong Qin , Wenxuan Li , Yihua Zhao","doi":"10.1016/j.chemosphere.2025.144572","DOIUrl":"10.1016/j.chemosphere.2025.144572","url":null,"abstract":"<div><div>Bioretention cells have been less studied for treating stormwater runoff and removing antibiotics and denitrification. In this experiment, bioretention cells with iron-copper bimetallic catalysis and <em>Phalaris arundinacea</em> were constructed and synergistically optimized. The performance of antibiotic removal and denitrification under single and compound antibiotic stress was investigated, and the microecological environment of the system was analyzed. The results showed that under single and compound antibiotic stress, the removal rates of ofloxacin (OFLX) and tetracycline (TC) reached 91.69 %–99.57 % and 95.96 %–99.74 %, respectively. The TN and NH<sub>4</sub><sup>+</sup>-N removal rates were 68.74 %–74.90 % and over 71.15 %, respectively. <em>Rhodanobacter</em>, <em>Zoogloea</em> and <em>Holophaga</em> played important roles in antibiotic degradation and denitrification. Denitrification functional genes <em>nirS</em>, <em>norB</em>, <em>nosZ</em> and <em>narG</em> showed a trend of decreasing relative abundance under the influence of antibiotics. These results suggested that bioretention cells can remove antibiotics and nitrogen by affecting microbial and denitrification gene changes. These findings provided a reference for performance optimization and practical application of bioretention cells in the field of antibiotic removal and nitrogen removal.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"385 ","pages":"Article 144572"},"PeriodicalIF":8.1,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653173","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}

引用次数: 0