Emerging Contaminants最新文献

{"title":"Occurrence, bioaccumulation, and ecological risk assessment of contaminants of emerging concern using native and invasive species as biomonitors","authors":"Diana P. Manjarrés-López ,&nbsp;Claudia Martínez-Megías ,&nbsp;Dyana Vitale ,&nbsp;Yolanda Picó ,&nbsp;Andreu Rico ,&nbsp;Sandra Pérez","doi":"10.1016/j.emcon.2025.100533","DOIUrl":"10.1016/j.emcon.2025.100533","url":null,"abstract":"<div><div>Traditionally, contaminants of emerging concern (CECs) monitoring have focused on assessing their occurrence in abiotic compartments and in native fish species. The use of non-native species in environmental quality studies has recently proven to be a key tool for evaluating the CECs exposure and their ecological risks. In this study, the use of different native and invasive species was proposed to assess the environmental quality of a coastal Mediterranean wetland. A biomonitoring assessment was conducted at ten locations within the Albufera Natural Park (Spain), including irrigation channels, the lake, and the artificial wetland. The bioaccumulation of 171 CECs was evaluated in the Asian clam, the American red swamp crayfish, and the pumpkinseed sunfish, which are primary invasive species in this ecosystem. Furthermore, a comparative analysis was done with the native clam to verify whether invasive species could provide equivalent information. A total of 35 CECs were detected in at least one of the species analyzed. The Asian clam exhibited the highest number of detected compounds (23), as well as the highest chemical concentrations, particularly for pharmaceuticals. The ecological risk assessment performed with internal concentrations of CECs also pointed at the Asian clam as the most suitable species for chemical biomonitoring in this area. The compounds that had the highest contribution to the calculated ecological risk were sertraline, fluoxetine, terbuthylazine, caffeine, and oseltamivir. At most exposure sites HI values revealed high risk, indicating strong pressure from mixtures of CEs for both native and invasive species. This study shows that the analysis of chemical concentrations in invasive species can be considered a complementary tool to determine the ecological status of coastal wetlands.</div></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":"11 3","pages":"Article 100533"},"PeriodicalIF":5.3,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144270755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Conjugation effects on antibiotic resistance genes at various salt Levels: Insights from single-factor and simulation study","authors":"Pei Jiang ,&nbsp;Yu Xia ,&nbsp;Jiali Chang ,&nbsp;Cheng Zhang ,&nbsp;Xia Li ,&nbsp;Le Fang ,&nbsp;Xinhui Liu","doi":"10.1016/j.emcon.2025.100522","DOIUrl":"10.1016/j.emcon.2025.100522","url":null,"abstract":"<div><div>The dissemination mechanisms of antibiotic resistance genes (ARGs) under salinity fluctuations remain poorly understood, despite their critical implications for environmental resistance ecology. This study systematically decoupled salinity-driven conjugation dynamics through controlled single-factor experiments and simulated sediment microcosms. Controlled conjugation assays revealed a threshold-dependent response, with RP4 plasmid transfer frequencies peaking at 2.00 % salinity (4.58–13.51-fold increase vs. 0.85 % control, p &lt; 0.01), mechanistically linked to reactive oxygen species (ROS)-mediated SOS pathway activation. In simulated sediment systems, salinity gradients drove host-specific ARGs enrichment, with plasmid-borne tetA and <em>bla</em>TEM abundances increasing 1.49–4.39 fold under brackish conditions (2.00 % salinity). Multidrug resistance genes <em>flo</em>R, <em>qac</em>H-01 exhibited synergistic diffusion patterns (r = 0.77–0.94, p &lt; 0.05), while salt-tolerant phyla <em>Campylobacterota</em> and <em>Spirochaetota</em> became dominant ARGs reservoirs at 3.50 % salinity (2.05–3.17 fold enrichment vs. controls). Although exogenous antibiotic resistance bacteria (ARB) introduction marginally reduced α-diversity, phylum-level community structure remained stable. Salinity preferentially suppressed rare taxa, amplifying ARGs co-occurrence networks through niche restructuring. These findings establish salinity as a dual regulator of ARGs dissemination, directly enhancing conjugation via oxidative stress pathways and indirectly reshaping resistance landscapes through microbial host selection. The results underscore the necessity of integrating salinity gradients into ARGs risk assessments, particularly in coastal ecosystems where tidal fluctuations may potentiate resistance propagation.</div></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":"11 3","pages":"Article 100522"},"PeriodicalIF":5.3,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144240854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation and risk assessment of PCDDs, PCDFs, and dl-PCBs in Chinese mitten crab (Eriocheir sinensis) from the South Dongting lake area, China","authors":"Wei Xiang ,&nbsp;Fuhua Fu ,&nbsp;Xuebo Shang ,&nbsp;Jian Xu ,&nbsp;Fengxiang Yu ,&nbsp;Dengni Lai ,&nbsp;Yang Shan","doi":"10.1016/j.emcon.2025.100521","DOIUrl":"10.1016/j.emcon.2025.100521","url":null,"abstract":"<div><div>Dioxins are among the common persistent organic pollutants in crabs. To clarify the potential risk of dioxins pollution in Chinese mitten crab, eight types of samples were collected in the South Dongting Lake area for the analysis of 17 PCDD/Fs and 12 dl-PCBs. The results indicate that the concentration of Σ PCDD/Fs and Σ dl-PCBs in crabs was between 0.993–10.8 and 35.0–282 pg/g w.w., respectively. The mean WHO-TEQ value of Σ PCDD/Fs in crabs was 0.248 ± 0.205 pg TEQ/g w.w., and the mean WHO-TEQ value of Σ PCDD/Fs + dl-PCBs in crabs was 0.359 ± 0.280 pg TEQ/g w.w. The total toxic equivalent of bottom sediment, surrounding soil, crab brown meat and juvenile crab were relatively high, which were 2.88, 2.67, 1.50 and 1.30 pg TEQ/g w.w., respectively. In the case of 99th percentile, the WHO-TEQ values of Σ PCDD/Fs and Σ PCDD/Fs + dl-PCBs in crab white meat were all within the maximum permitted levels as specified in commission regulation (EU) 2023/915. The <em>HQ</em> values of 99th percentile of Σ PCDD/Fs + dl-PCBs were 0.0783, 0.00703 and 0.0853 for eating brown meat products, eating white meat products and eating whole crabs, respectively. The coordinate points of the samples are connected to the origin by a straight line in the correspondence analysis map. The angle formed by the straight lines of crab brown meat/crab white meat and juvenile crab was acute angle, as did the feed. The angles between the straight line of bottom sediment/surrounding soil and that of other samples were all obtuse angles. In conclusion, although the dioxins of bottom sediment and surrounding soil are obvious, the dioxins of adult crabs are mainly related to that of the juvenile crabs and feed. At present, the intake of dioxins from Chinese mitten crab by Chinese residents is at a safe level because of low annual consumption. It is recommended that adults limit their weekly crab consumption to 1–4 crabs, or only 23.1–105 g of crab brown meat per week, or solely 435–1242 g of crab white meat per week.</div></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":"11 3","pages":"Article 100521"},"PeriodicalIF":5.3,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144166753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Combined impacts of organophosphate pesticide and polyamide microplastics on growth, hematology, and immune responses in juvenile striped catfish (Pangasianodon hypophthalmus)","authors":"Sheik Istiak Md Shahriar ,&nbsp;Naimul Islam ,&nbsp;Farhan Jamil Emon ,&nbsp;Vaskar Nepal ,&nbsp;Saleha Khan ,&nbsp;Md Shahjahan","doi":"10.1016/j.emcon.2025.100520","DOIUrl":"10.1016/j.emcon.2025.100520","url":null,"abstract":"<div><div>Organophosphate pesticides and microplastics are two major threats to freshwater ecosystems. Individually, their impacts on aquatic animals are well established, but their combined effects remain poorly understood. Yet, in the Anthropocene, multiple pollutants simultaneously affect aquatic organisms, and their combined effects may not be additive. It is therefore important to study the interactive effects of multiple stressors on aquatic animals. This study examined the effects of sub-lethal concentrations of the pesticide fenitrothion (0.60 mg/L) and polyamide microplastics (10 mg/L) on survival, growth, hematology, and immune-gene expression in juvenile striped catfish (<em>Pangasianodon hypophthalmus</em>) over 28 days. Fish were exposed to microplastics (MP), fenitrothion (Fen), both stressors combined (Fen + MP), or neither (control). Co-exposure to fenitrothion and microplastics (Fen + MP) led to increased microplastic accumulation, reduced growth performance (weight gain, specific growth rate, and feed efficiency), lower survival rates, and significant hematological changes, including elevated glucose (143.89 mg/dL) and reduced hemoglobin (7.30 g/dL). Cellular and nuclear abnormalities, such as micronuclei and teardrop-shaped cells, were most pronounced in Fen + MP treatments. Histo-pathological analysis revealed severe tissue damage in gills, liver, kidney, and intestines under co-exposure. Immunologically, Fen + MP upregulated interleukin-1β (IL-1β) expression but downregulated major histocompatibility complex-II (MHC-II) and interferon genes (IFN-α2, IFN-β2). These findings highlight that combined exposure to the chosen pesticides and microplastics exacerbates physiological, cellular, and immune impairments in striped catfish, posing significant risks to their health and survival.</div></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":"11 3","pages":"Article 100520"},"PeriodicalIF":5.3,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polychlorinated naphthalenes in the serum of individuals with thyroid dysfunction and their potential mechanisms of impact on disease progression","authors":"Yuhao Fan ,&nbsp;Dan Chen ,&nbsp;Xinyu Lou ,&nbsp;Ye Wu ,&nbsp;Jie Sun ,&nbsp;Zhiyan Liu ,&nbsp;Jun Jin ,&nbsp;Tan Chen","doi":"10.1016/j.emcon.2025.100517","DOIUrl":"10.1016/j.emcon.2025.100517","url":null,"abstract":"<div><div>Polychlorinated naphthalenes (PCNs) comprise 75 congeners, with varying concentrations and major congeners across different populations. Recent studies have found a relationship between PCNs and thyroid hormone levels, suggesting they may interfere with thyroid function. Investigating the concentrations of PCNs in individuals with thyroid dysfunction helps identify the predominant congeners and enables targeted analysis of their interference with thyroid function. In this study, serum concentrations of PCNs from 55 adults with thyroid dysfunction were measured. PCN-13, -15, −17/25/26, −20, −23, and −24/14 detected at over 70 %, and PCN-23 and -24/14 being the major congeners. No significant difference in PCN concentrations was found between males and females, but the concentrations of PCN-23 and -24/14 increased with age. Logistic regression and QGC models revealed a significant association between PCN-23 and thyroid dysfunction, while mediation analysis indicated PCN-23 affects physiological processes involving the BRAF 600E gene, which influences normal thyroid function. Molecular docking results showed that all six PCNs impacted thyroid hormone metabolism and receptor binding, with PCN-23 binding more effectively to TBG and disrupting thyroid hormone transport compared to PCN-24/14. Future studies should focus on the concentrations of trichlorinated PCNs, particularly PCN-23, in the human body and their relationship with thyroid function.</div></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":"11 3","pages":"Article 100517"},"PeriodicalIF":5.3,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144296953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of tire microplastics on aerobic granular sludge performance","authors":"Job Oliver Otieno ,&nbsp;Piotr Jachimowicz ,&nbsp;Magdalena Zielińska ,&nbsp;Weronika Irena Mądzielewska ,&nbsp;Agnieszka Cydzik-Kwiatkowska","doi":"10.1016/j.emcon.2025.100513","DOIUrl":"10.1016/j.emcon.2025.100513","url":null,"abstract":"<div><div>Although tire microplastics (TMPs) constitute a substantial portion of microplastic entering wastewater treatment plants, there is a knowledge gap regarding the influence of TMPs on aerobic granular sludge (AGS) systems, which, being more resilient than activated sludge, are becoming increasingly important in modern wastewater treatment. This study investigated the effect of TMPs in wastewater (50, 100, 250, and 500 mg/L) on AGS performance and microbiome. TMPs did not affect organics and phosphorus removal, however, total nitrogen removal was significantly higher (about 9 %) at 500 mg TMPs/L compared to the control. TMPs improved biomass settling, but this was due to TMP accumulation (TMPs comprised over 50 % of biomass at 500 mg TMP/L) rather than improved granulation. The biomass yield coefficient was five times lower at 500 mg TMP/L than in the control. TMPs elevated dehydrogenase activity (free radical generation) and increased the abundance of microbes involved in polyP synthesis and nitrogen metabolism. TMP presence increased the microbiome potential in terms of antibiotic resistance genes (<em>cmd</em> and <em>marR</em>) and the abundance of hydrolases, which degrade rubber-associated ester bonds, and significantly increased the abundance of MP-degraders belonging to genera <em>Ideonella, Rhodobacter</em>, <em>Xanthobacter,</em> and <em>Hydrogenophaga</em>. This study demonstrates that while TMPs in wastewater do not impair nutrient removal by AGS, their accumulation significantly degrades biomass properties, complicating sludge management and disposal. Furthermore, TMPs alter the AGS microbiome's composition and metabolic potential. These findings highlight the importance of integrating AGS systems into urban wastewater treatment, optimizing sludge management strategies, and developing targeted approaches to address the challenges posed by TMPs.</div></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":"11 3","pages":"Article 100513"},"PeriodicalIF":5.3,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Non-targeted screening and characterization of organic pollutants in wastewater from an industrial park in China","authors":"Xu Tan,&nbsp;Shanwei Sun,&nbsp;Song Hou,&nbsp;Linlin Wu,&nbsp;Yangwei Bai,&nbsp;Hongbo Xi,&nbsp;Jian Xu,&nbsp;Changsheng Guo","doi":"10.1016/j.emcon.2025.100519","DOIUrl":"10.1016/j.emcon.2025.100519","url":null,"abstract":"<div><div>Industrial parks are significant sources of complex water pollution, making it challenging to trace pollutant origins and ensure water quality. This study established a non-targeted screening workflow and compound persistence, mobility, and toxicity (PMT) assessment method to identify and characterize organic pollutants in wastewater from a chemical industrial park in Central China. Among the 255 compounds identified, some aromatic ketones and phthalate esters raised concerns due to their potential health effects. PMT assessment revealed 2 PMT/vPMT (v = very) compounds, 36 potential PMT/vPMT compounds, and 50 potential PT/vPT or PM/vPM compounds. Exposure-discharge modeling indicated the wastewater treatment plant's limited efficiency in treating the predominantly aromatic pollutants. Traceability analysis identified 23 characteristic pollutants from eight enterprises. This study provides valuable insights for identifying unknown compounds, evaluating industrial wastewater discharge standards, and enabling precise management of water pollution in industrial parks.</div></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":"11 3","pages":"Article 100519"},"PeriodicalIF":5.3,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of aging and colorants on environmental degradation of polyolefins","authors":"Vaibhav Budhiraja ,&nbsp;Prashant Mani Shandilya ,&nbsp;Luka Pavko ,&nbsp;John I. Garver ,&nbsp;Andrej Kržan","doi":"10.1016/j.emcon.2025.100516","DOIUrl":"10.1016/j.emcon.2025.100516","url":null,"abstract":"<div><div>Plastic litter breaks down into microplastics (MPs) and nanoplastics over time, but their environmental lifespan remains largely unknown. Understanding the degradation of plastic litter in the environment remains a fundamental question in MP research. This study highlights the significant role of colorants in the degradation process by analyzing forty-four naturally aged polyethylene (PE) lobster trap tags collected from the marine environment and an old, heavily degraded polypropylene (PP) product. The lobster trap tags, marked with their production year, indicate their time in the marine environment, with the oldest dating back to 1983, while the PP tub, over forty years old, had undergone extensive photodegradation in sunlight. Chemical, thermal, mechanical and surface property analyses revealed that the aging of PE tags is not directly proportional to their environmental degradation. Among the eight different tag colors, blue and green were the least degraded, while red showed the most degradation, emphasizing the influence of colorants. In contrast, the PP sample exhibited severe surface degradation, with significant fragmentation leading to MP formation, while its interior remained relatively intact. These findings underscore the complex interactions between environmental factors and material properties in plastic degradation.</div></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":"11 3","pages":"Article 100516"},"PeriodicalIF":5.3,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Occurrence, accumulation and potential toxicity of parent and halogenated polycyclic aromatic hydrocarbons in pooled serum of people in different age groups from four Chinese cities","authors":"Jiali Han ,&nbsp;Junsong Bao ,&nbsp;Tianwei Li ,&nbsp;Yao Jiang ,&nbsp;Yuhao Fan ,&nbsp;Junjie Jiang ,&nbsp;Jun Jin ,&nbsp;Jicheng Hu","doi":"10.1016/j.emcon.2025.100518","DOIUrl":"10.1016/j.emcon.2025.100518","url":null,"abstract":"<div><div>Halogenated polycyclic aromatic hydrocarbons (HPAHs) and polycyclic aromatic hydrocarbons (PAHs) were determined in human serum samples pooled by donor age (&lt;20, 20–29, 30–39, 40–49 and ≥ 50 y). The pooled samples were collected from four Chinese cities, Yantai (Shandong Province), Ganzi (Sichuan Province), Huaihua (Hunan Province), and Lingshui (Hainan Province). The concentrations of HPAHs and PAHs were in the range of 4.26–633 ng/g lipid and 249–1642 ng/g lipid from the different cities. Although the levels of HPAHs in blood samples varied among the populations of the four cities, 1,5-dichloroanthracene (1,5-Cl₂Ant) was the predominant contributor to HPAHs in the serum samples, accounting for over 85.7 % of its total concentration. Furthermore, 1,5-Cl₂Ant serum concentrations increased significantly with age. Notably, molecular docking results show that 1,5-Cl₂Ant not only acquires the ability to bind d-AhR PAS-B domain, but also binds at the similar sites as 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) and benzo[a]pyrene (BaP), suggesting that 1,5-Cl₂Ant, like TCDD and BaP, may cause a wide variety of toxicity via AhR-mediated signaling pathways. The bioaccumulation potential of 1,5-Cl₂Ant in the human body and its associated toxicity observed in this study need special attention.</div></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":"11 3","pages":"Article 100518"},"PeriodicalIF":5.3,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144166752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Atmospheric detection, prevalence, transmission, health and ecological consequences of antibiotic resistance genes and resistant bacteria: A comprehensive review","authors":"Liang Fan ,&nbsp;Chun Chen ,&nbsp;Haijie Zhang ,&nbsp;Yang Zeng ,&nbsp;Tiejun Li ,&nbsp;Rui Gao ,&nbsp;Junling Li ,&nbsp;Yanqin Ren ,&nbsp;Zhenhai Wu ,&nbsp;Fang Bi ,&nbsp;Yangxi Chu ,&nbsp;Hong Li ,&nbsp;Jingnan Hu ,&nbsp;Jian Xu ,&nbsp;Yisheng Xu","doi":"10.1016/j.emcon.2025.100514","DOIUrl":"10.1016/j.emcon.2025.100514","url":null,"abstract":"<div><div>Globally atmospheric transmission of antibiotic-resistance genes (ARGs) and antibiotic-resistant bacteria (ARB) poses a serious challenge to human health and the environment. Thus, a comprehensive and systematic review was established to focus on the detection and analytical methods, distribution characteristics, transmission mechanisms, potential impact on human health and ecological environment of ARGs and ARB in the atmosphere. Emerging methods, such as machine learning and deep learning in artificial intelligence, as well as isothermal amplification methods, have considerably improved the detection efficiency of ARGs and ARB in the atmosphere, along with conventional methods such as Polymerase chain reaction (PCR), PCR derivative methods, and metagenomic sequencing. ARGs and ARB are widely detected in various atmospheric environment, significantly in hospitals, pharmaceutical factories, animal farms, wastewater treatment plants, municipal solid waste landfills and densely populated indoor environments. They can be transferred over extensive distances in the atmosphere <em>via</em> bioaerosols, with their distribution and survival markedly affected by meteorological and climatic factors as well as air contaminants. The transmissions of ARGs and ARB may alter microbial community structures, impact biodiversity, and enhance human exposure risks via inhalation, skin contact, and ingestion. This review synthesizes ARGs and ARB in the atmosphere and provides scientific evidence for policy development and further research, which should focus on the development of intelligent and accurate detection methods, construction of cross-media transmission mechanism and global model, establishment of global health risk assessment system to face the global challenge of antimicrobial resistance.</div></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":"11 3","pages":"Article 100514"},"PeriodicalIF":5.3,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144089109","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}