Journal of Hazardous Materials最新文献

Mapping nutrient pollution in inland water bodies using multi-platform hyperspectral imagery and deep regression network

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-01-22 DOI: 10.1016/j.jhazmat.2025.137314

Chao Niu, Kun Tan, Xue Wang, Chen Pan

{"title":"Mapping nutrient pollution in inland water bodies using multi-platform hyperspectral imagery and deep regression network","authors":"Chao Niu, Kun Tan, Xue Wang, Chen Pan","doi":"10.1016/j.jhazmat.2025.137314","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137314","url":null,"abstract":"Inland waters face multiple threats from human activities and natural factors, leading to frequent water quality issues, particularly the significant challenge of eutrophication. Hyperspectral remote sensing provides rich spectral information, enabling timely and accurate assessment of water quality status and trends. To address the challenge of inaccurate water quality mapping, we propose a novel deep learning framework for multi-parameter estimation from hyperspectral imagery. A deep convolutional spatial-spectral joint learning method incorporating high-dimensional attention-weighted differences is proposed to optimize the deep features. The model was used to accurately estimate the distribution of three key eutrophication-related water quality parameters: total nitrogen, total phosphorus, and ammonia nitrogen. Through scale analysis, ablation experiments, and model comparisons, the results demonstrate stable regression performance with the proposed model. Specifically, the coefficient of determination (R2) values are 0.8315, 0.8137, and 0.8245, the mean absolute error (MAE) values are 0.2035, 0.0056 and 0.0134, and the mean squared error (MSE) values are 0.0733, 0.00008 and 0.0003 for the three parameters in the test set, respectively. Compared to the traditional feature analysis and regression methods, the R² values are improved by approximately 30%, while the MAE and MSE values are reduced by approximately 60% and 80%, respectively. The model was applied to airborne hyperspectral imagery for nutrient pollution mapping. To assess the model’s generalizability, we applied the trained model to multi-temporal satellite hyperspectral imagery and validated against in situ monitoring data, where the proposed model demonstrated promising cross-platform and temporal transferability.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"5 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring the degradation of ofloxacin in sewer overflows by Fe(Ⅵ)/PMS, Fe(Ⅵ)/PDS, and Fe(Ⅵ)/SPC: Overlooked synergistic effect of oxidation and in-situ coagulation

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-01-22 DOI: 10.1016/j.jhazmat.2025.137333

Qian Guo, Zuxin Xu, Wenhai Chu, Yingying Zhou, Xiaoting Gao, Cheng Ye

{"title":"Exploring the degradation of ofloxacin in sewer overflows by Fe(Ⅵ)/PMS, Fe(Ⅵ)/PDS, and Fe(Ⅵ)/SPC: Overlooked synergistic effect of oxidation and in-situ coagulation","authors":"Qian Guo, Zuxin Xu, Wenhai Chu, Yingying Zhou, Xiaoting Gao, Cheng Ye","doi":"10.1016/j.jhazmat.2025.137333","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137333","url":null,"abstract":"Sewer overflows are a potential source of emerging contaminants to urban waters,posing a threat to ecosystems and human health. Herein, the performance and mechanism of ferrate(Ⅵ) (Fe(Ⅵ))/peroxymonosulfate (PMS), Fe(Ⅵ)/peroxydisulfate (PDS), and Fe(Ⅵ)/percarbonate (SPC) for the degradation of ofloxacin (OFL) in overflows were comparatively investigated. These systems achieved efficient degradation of OFL and the removal of conventional pollutants. Particularly, Fe(Ⅵ)/PMS showed better degradation performance for OFL with a degradation efficiency of 98.8%. The dominant reactive oxygen species for OFL degradation in the Fe(Ⅵ)/PMS, Fe(Ⅵ)/PDS, Fe(Ⅵ)/SPC systems were singlet oxygen (1O2), sulfate radical (SO4·-), and hydroxyl radical (·OH), respectively. High-valent iron species played an important role in the Fe(Ⅵ)/PMS and Fe(Ⅵ)/PDS systems. Notably, the synergistic effect of oxidation and in-situ coagulation played a key role in OFL degradation, which determined the superior performance of Fe(Ⅵ)/PMS. The formed flocs with Fe-O-P bond acted as a highway to promote the electron transfer from OFL to PMS, resulting in the efficient degradation of OFL in Fe(Ⅵ)/PMS system. Moreover, a same degradation pathway of OFL was found, and the toxicity of the degradation products was reduced, especially in the Fe(Ⅵ)/PMS system. This study provided a new strategy for overflows treatment.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"59 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Constructing oxygen vacancies in Cu-doped MnO2 by a quenching strategy for boosting the catalytic oxidation of toluene

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-01-22 DOI: 10.1016/j.jhazmat.2025.137297

Xinxin Wang, Shuang Yang, Zhongxian Song, Xi Chen, Wei Liu, Xuejun Zhang

{"title":"Constructing oxygen vacancies in Cu-doped MnO2 by a quenching strategy for boosting the catalytic oxidation of toluene","authors":"Xinxin Wang, Shuang Yang, Zhongxian Song, Xi Chen, Wei Liu, Xuejun Zhang","doi":"10.1016/j.jhazmat.2025.137297","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137297","url":null,"abstract":"Here, a quenching strategy was developed to create oxygen vacancies in Cu doped α-MnO2. The evolutions of oxygen vacancies were directly followed by means of XRD refinement, EPR and XPS. In combination with DFT calculations and detailed characterizations, evidence is captured that oxygen vacancies not only act as direct sites for the adsorption and activation of gaseous oxygen and toluene, but also accelerate the consumption and replenishment cycle of lattice oxygen species by weakening the strength of metal-oxygen bonds. In situ DRIFTS study reveals that both adsorbed oxygen and lattice oxygen species directly participate in the oxidative decomposition of toluene, where adsorbed oxygen species play pivotal roles in the initial oxidation of toluene to benzoate, whereas the process of ring opening of benzoate relies on the activation of lattice oxygen. Benefiting from crucial contribution of oxygen vacancies in activating oxygen species, α-CuMnO2-500-Q obtained by the quenching method is capable of fully catalyzing the oxidation of toluene at 240 ℃, representing a reduction of about 80 ℃ compared to pristine α-CuMnO2-500. Furthermore, the toluene oxidation mechanism was proposed as well via in situ DRIFT spectra.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"12 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ocean current modulation of the spatial distribution of microplastics in the surface sediments of the Beibu Gulf, China

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-01-22 DOI: 10.1016/j.jhazmat.2025.137332

Liyuan Wu, Chengyong Li, Chao Huang, Yongyi Luo, Jiang Huang, Fajin Chen, Xin Huang, Ruikun Sun

{"title":"Ocean current modulation of the spatial distribution of microplastics in the surface sediments of the Beibu Gulf, China","authors":"Liyuan Wu, Chengyong Li, Chao Huang, Yongyi Luo, Jiang Huang, Fajin Chen, Xin Huang, Ruikun Sun","doi":"10.1016/j.jhazmat.2025.137332","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137332","url":null,"abstract":"Microplastic pollution, a major global environmental issue, is gaining heightened attention worldwide. Marginal seas are particularly susceptible to microplastic contamination, yet data on microplastics in marine sediments remain scarce, especially in the Beibu Gulf. This study presents a large-scale investigation of microplastics in the surface sediments of the Beibu Gulf to deciphering their distribution, sources and risk to marginal seas ecosystems. The results reveal widespread microplastic contamination, with an average abundance of 391±27 items/kg in sediments. The spatial variability of microplastic abundance was significant, with lower levels in the western Beibu Gulf and higher concentrations in the northeastern and southeastern regions. The spatial distribution of microplastics was largely driven by geological features, hydrodynamic conditions, and human activity, with minimal influence from local environmental factors such as water depth, sediment grain size, organic carbon content, and sediment types. The pollution load index (PLI) suggests a low level of microplastic contamination, but the polymer hazard index (PHI) identified a high ecological risk, likely due to the presence of PVC, a polymer with higher chemical toxicity. Our findings highlight the significant role of hydrodynamic processes in determining microplastic distribution in the Beibu Gulf. These insights enhance our understanding of microplastic dispersal and its governing factors in semi-enclosed marginal seas, providing foundation for targeted pollution control strategies.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"75 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Overexpression of E. coli formaldehyde metabolic genes pleiotropically promotes Arabidopsis thaliana growth by regulating redox homeostasis

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-01-22 DOI: 10.1016/j.jhazmat.2025.137324

Jieyi Zhang, Shuaiqi Wang, Ziding Bai, Jingjing Pei, Shaohui Yang, Jiehua Wang

{"title":"Overexpression of E. coli formaldehyde metabolic genes pleiotropically promotes Arabidopsis thaliana growth by regulating redox homeostasis","authors":"Jieyi Zhang, Shuaiqi Wang, Ziding Bai, Jingjing Pei, Shaohui Yang, Jiehua Wang","doi":"10.1016/j.jhazmat.2025.137324","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137324","url":null,"abstract":"Formaldehyde (FA) is a hazardous pollutant causing acute and chronic poisoning in humans. While plants provide a natural method of removing FA pollution, their ability to absorb and degrade FA is limited. To improve the ability of plants to degrade FA, we introduced the E. coli FrmA gene into Arabidopsis thaliana alone (FrmAOE lines) or with FrmB (FrmA/BOE lines). The transgenic seedlings had approximately 30% longer primary roots and a 20% higher fresh weight than the control plants. The transgenic plants started flowering four days earlier and had about 30% more kilo-seed weight than the wild type. FrmA/BOE and FrmAOE accumulated 40% more reactive oxidative species (ROS) in mesophyll protoplasts and leaf tissue than wild-type plants under normal conditions. In the presence of FA, they produced 92% and 26% more glutathione (GSH) and 6% and 4% more ascorbate (AsA), respectively, compared to wild-type plants and thus scavenged FA-induced ROS more effectively. The degradation efficiency of the transgenic leaf extract for FA was 73% and 44% higher than that of the wild type, respectively, which was also emphasized by a 2%-26% increase in the activity of antioxidant enzymes such as SOD and APx. By revealing the functional divergence between microbial and plant FA metabolic pathways, our work has not only highlighted the promising pluripotency of microbial genes in promoting normal plant growth and detoxifying organic pollutants simultaneously, but also revealed another layer of complexity of plant defense mechanisms against organic toxins related to ROS scavenging.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"24 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ti3C2Tx/Au NPs/PPy ternary heterostructure-based intra-capacitive self-powered sensor for DEHP detection

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-01-22 DOI: 10.1016/j.jhazmat.2025.137311

Kaixiang Ji, Peilin Wang, Yameng Li, Qiang Ma, Xingguang Su

{"title":"Ti3C2Tx/Au NPs/PPy ternary heterostructure-based intra-capacitive self-powered sensor for DEHP detection","authors":"Kaixiang Ji, Peilin Wang, Yameng Li, Qiang Ma, Xingguang Su","doi":"10.1016/j.jhazmat.2025.137311","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137311","url":null,"abstract":"Phthalate esters, particularly di(2-ethylhexyl) phthalate (DEHP), are widely used plasticizers found in various consumer products, posing significant environmental and health risks due to their endocrine-disrupting effects. In this study, a novel enzyme-free intra-capacitive biofuel cell self-powered sensor (ICBFC-SPS) was developed. The ICBFC-SPS integrated a ternary heterostructure-based capacitive anode and a cathode with a sensing interface into a single-chamber electrolytic cell. The ternary heterostructure based on Ti3C2Tx MXene with ultra-small Au NPs and polypyrrole (PPy) NPs was prepared to provide the efficient glucose oxidation and robust electron production. Furthermore, the charge storage capacity was significantly enhanced through a synergistic combination of the double-layer capacitor mechanism of Ti3C2Tx and the pseudocapacitive behavior of PPy. Additionally, the intercalation of PPy NPs expanded the interlayer spacing, promoting electrolyte ion diffusion and charge transfer. The ICBFC-SPS demonstrated exceptional sensitivity with a linear detection range from 0.05 to 100000 ng/L and a detection limit of 9.51 pg/L for the sensitive and selective detection of DEHP in complex environmental and biological samples. The ICBFC-SPS addresses the limitations of traditional methods by providing a self-powered, highly sensitive, and portable platform for rapid, on-site DEHP detection. This work underscores the potential of self-powered sensors as transformative tools for real-time environmental monitoring and public health protection.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"33 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biodegradation of polyethylene with polyethylene‐group‐degrading enzyme delivered by the engineered Bacillus velezensis

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-01-22 DOI: 10.1016/j.jhazmat.2025.137330

Fuliang Bai, Jie Fan, Xiangyu Zhang, Xuemeng Wang, Shuo Liu

{"title":"Biodegradation of polyethylene with polyethylene‐group‐degrading enzyme delivered by the engineered Bacillus velezensis","authors":"Fuliang Bai, Jie Fan, Xiangyu Zhang, Xuemeng Wang, Shuo Liu","doi":"10.1016/j.jhazmat.2025.137330","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137330","url":null,"abstract":"Microplastics (MPs) pose an emerging threat to vegetable growing soils in Harbin, which have a relatively high abundance (11065 n/kg) with 17.26 of potential ecological risk of single polymer hazard (EI) and 33.92 of potential ecological risk index (PERI). Polyethylene (PE) is the main type of microplastic pollution in vegetable growing soils in Harbin. In this study, the engineered Bacillus velezensis with polyethylene‐group‐degrading enzyme pathway (BCAv-PEase) was constructed to enhance the degradation of MPs of PE (PE-MPs). BCAv-PEase increased the biodegradation of PE-MPs, promoted weight loss of PE films, elevated surface tension, and decreased the surface hydrophobicity of PE through upregulating activities of depolymerases, dehydrogenase, and catalase. Mechanism analysis showed that BCAv-PEase degraded PE-MPs by promoting the secretion of PEase, thereby leading to the generation of new oxygenated functional groups within the PE-MPs substrate, which further accelerated the metabolic pathway of PE-MPs. The analysis of the microbial community during the PE-MPs degradation processes revealed that BCAv-PEase emerged as the principal bacterial player and stimulated the abundance of microbes and functional genes associated with the biodegradation of PE. In conclusion, this study provides a potential mechanism for biodegradation of PE-MPs mediated by BCAv-PEase via modulating substrate selectivity and optimizing biocatalytic pathways.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"22 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Physiological and behavioral effects of titanium dioxide nanoparticle exposure on stingless bee foragers

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-01-22 DOI: 10.1016/j.jhazmat.2025.137315

Thaís Andrade Viana, Tandara Ketlyn Degobi Xavier, Wagner Faria Barbosa, Cristiane do Carmo Cesário, Daniel Silva Sena Bastos, Rodrigo Cupertino Bernardes, Lorena Lisbetd Botina, Gustavo Ferreira Martins

{"title":"Physiological and behavioral effects of titanium dioxide nanoparticle exposure on stingless bee foragers","authors":"Thaís Andrade Viana, Tandara Ketlyn Degobi Xavier, Wagner Faria Barbosa, Cristiane do Carmo Cesário, Daniel Silva Sena Bastos, Rodrigo Cupertino Bernardes, Lorena Lisbetd Botina, Gustavo Ferreira Martins","doi":"10.1016/j.jhazmat.2025.137315","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137315","url":null,"abstract":"Bee population decline is associated with various stressors, including exposure to pollutants. Among these, titanium dioxide (TiO2), an emerging nanoparticle (NP) pollutant, potentially affects living organisms, including bees. This study evaluates the impact of TiO2 NPs ingestion (1.35 or 13.5 µg/mL) on the behavior and physiology of the stingless bee Partamona helleri. X-ray spectroscopy confirmed the presence of Ti in the bees’ gut, and 3D X-ray microscopy revealed a reduction in body volume. Although survival, food consumption, flight, and respiration were unaffected. In addition, bees exposed to 13.5 µg/mL of TiO2 NPs exhibited reduced walking distances. TiO2 NPs exposure decreased the total hemocyte count, with notable changes in the proportions of specific hemocyte types: decreased the proportions of plasmatocytes in bees exposed to 13.5 µg/mL, and decreased the granulocytes, and increased the prohemocytes in both concentrations. Furthermore, enzymatic activity was affected with increased levels of catalase (CAT), superoxide dismutase (SOD), and ferric-reducing antioxidant power (FRAP), alongside a decrease in glutathione S-transferase (GST) activity. These findings suggest that TiO2 NPs may pose a risk to bee health, highlighting the need for further research to fully understand the implications of nanoparticles exposure on pollinators.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"9 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Big picture thinking of global PM2.5-related COPD: spatiotemporal trend, driving force, minimal burden and economic loss

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-01-21 DOI: 10.1016/j.jhazmat.2025.137321

Jing-Xuan Zhou, Zhao-Xing Peng, Zi-Yi Zheng, Hong-Gang Ni

{"title":"Big picture thinking of global PM2.5-related COPD: spatiotemporal trend, driving force, minimal burden and economic loss","authors":"Jing-Xuan Zhou, Zhao-Xing Peng, Zi-Yi Zheng, Hong-Gang Ni","doi":"10.1016/j.jhazmat.2025.137321","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137321","url":null,"abstract":"Chronic obstructive pulmonary disease (COPD) is a leading global cause of morbidity and mortality, with increasing evidence linking long-term exposure to ambient fine particulate matter (PM2.5) to accelerated lung function decline and exacerbation of COPD symptoms. This study aimed to assess the global burden of PM2.5-related COPD from 1990 to 2021 and project future health and economic impacts. Using Mendelian randomization, the causal relationship between PM2.5 exposure and COPD was confirmed. Data from the Global Burden of Disease 2021 dataset was analyzed across 204 countries, considering age, gender, region, and socio-demographic index (SDI). A significant positive correlation between PM2.5 exposure and COPD was observed. In 2021, COPD deaths due to ambient PM2.5 exposure reached 841,466 globally, with an age-standardized mortality rate (ASR) of 10.23 per 100,000 people. DALYs were 17,683,776, with an ASR of 208.27 per 100,000. Both the number of deaths and DALYs significant increased since 1990, primarily driven by population aging and growth. Regional analysis revealed that Asia, especially China and India, bore the highest burden, high SDI regions managed to maintain relatively stable and lower rates, and there are large health inequities. Projections indicate a continued rise in COPD burden, with substantial economic implications, estimating global economic losses of approximately $1.246 trillion by 2050. These findings highlighted the urgent need for public health interventions to mitigate future health and economic impacts of PM2.5 exposure.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"25 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling triclosan biodegradation: Novel metabolic pathways, genomic insights, and global environmental adaptability of Pseudomonas sp. strain W03 揭开三氯生生物降解的神秘面纱：假单胞菌 W03 菌株的新代谢途径、基因组见解和全球环境适应性

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-01-21 DOI: 10.1016/j.jhazmat.2025.137313

Lan Qiu, Xiaoyuan Guo, Hojae Shim, Tianwei Hao, Zhiwei Liang, Shanquan Wang, Zhenmei Lu, Qihong Lu, Zhili He

{"title":"Unveiling triclosan biodegradation: Novel metabolic pathways, genomic insights, and global environmental adaptability of Pseudomonas sp. strain W03","authors":"Lan Qiu, Xiaoyuan Guo, Hojae Shim, Tianwei Hao, Zhiwei Liang, Shanquan Wang, Zhenmei Lu, Qihong Lu, Zhili He","doi":"10.1016/j.jhazmat.2025.137313","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137313","url":null,"abstract":"The polychlorinated aromatic antimicrobial agent triclosan (TCS) is widely used to indiscriminately and rapidly kill microorganisms. The global use of TCS has led to widespread environmental contamination, posing significant threats to ecosystem and human health. Here we reported a newly isolated Pseudomonas sp. W03 for degrading TCS metabolically at concentrations up to 10 mg/L. This strain exhibited optimal degradation activity at 30°C and pH 7.0, and retained substantial activity at pH 4.0, although it was sensitive to alkaline conditions. Genomic analysis of strain W03 revealed a circular chromosome comprising 6,075,907 bp with a GC content of 65.08%. A novel TCS degradation pathway, involving dechlorination, oxidation, ether bond fission, and reoxidation processes, was identified. Also, the study mapped the global distribution of analogous Pseudomonas using 16S rRNA gene sequences, revealing their widespread presence in diverse aquatic environments, with a significant abundance in wastewater systems. These findings indicated that these bacteria play a critical ecological role in both natural and engineered environments, particularly in the degradation of organic pollutants. This study enhances our understanding of microbial degradation of emerging contaminants and presents a promising candidate for bioremediation strategies aimed at mitigating TCS-related water pollution.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"13 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0