Environmental Science: Processes & Impacts最新文献

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Indoor surface chemistry variability: microspectroscopic analysis of deposited particles in dwellings across the United States. 室内表面化学变化:美国住宅中沉积颗粒的显微光谱分析。
IF 4.3 3区 环境科学与生态学
Environmental Science: Processes & Impacts Pub Date : 2025-03-04 DOI: 10.1039/d4em00816b
Alison M Fankhauser, Jana L Butman, Madeline E Cooke, Yekaterina Fyodorova, Yangdongling Liu, Rachel E O'Brien, V Faye McNeill, Franz M Geiger, Vicki H Grassian, Andrew P Ault
{"title":"Indoor surface chemistry variability: microspectroscopic analysis of deposited particles in dwellings across the United States.","authors":"Alison M Fankhauser, Jana L Butman, Madeline E Cooke, Yekaterina Fyodorova, Yangdongling Liu, Rachel E O'Brien, V Faye McNeill, Franz M Geiger, Vicki H Grassian, Andrew P Ault","doi":"10.1039/d4em00816b","DOIUrl":"https://doi.org/10.1039/d4em00816b","url":null,"abstract":"<p><p>Dwellings across the United States range dramatically with respect to numerous variables (<i>e.g.</i>, size, ventilation, and proximity to outdoor sources), and there are considerable uncertainties regarding the heterogeneity in chemical composition and physical properties of indoor particles and surfaces. Stay-at-home orders early in the COVID-19 pandemic led to significant portions of the population spending high fractions of their time at their primary dwelling. Stay-at-HomeChem leveraged a network of indoor chemistry researchers to study indoor air quality and surface chemistry in their homes (March-April 2020). Within this effort, glass microscope slides were deployed in kitchens and other rooms in dwellings across the country for time periods ranging from as short as three hours up to three weeks. Overall, results from 10 occupied homes (15 distinct rooms) showed that collected material on this time scale was primarily deposited particles, rather than thick films, based on optical microscopy and profilometry. Raman microspectroscopy and optical photothermal infrared (O-PTIR) spectroscopy showed that organic modes were dominant, including <i>ν</i>(C-H), <i>δ</i>(C-H), and <i>ν</i>(CO), with minimal contributions from inorganic ions commonly observed in outdoor particulate matter (sulfate, nitrate, or ammonium). Spectral variability within the C-H stretching and fingerprint regions demonstrate differing compositions of deposited particles, often related to cooking activities (<i>e.g.</i>, organic particles from cooking oils). Differences within a single dwelling, highlighted that particles from cooking were key contributors in some other rooms, but not all, reinforcing that sources and ventilation likely led to quite distinct surfaces in different rooms. Overall, these results demonstrate the need for real-world measurements to assess the representativeness of assumptions regarding exposure to organic material indoors.</p>","PeriodicalId":74,"journal":{"name":"Environmental Science: Processes & Impacts","volume":" ","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143539607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Effect of hydrothermal treatment on plutonium retention in deep liquid radioactive waste disposal† 水热处理对深埋放射性液体废物处理中钚滞留的影响。
IF 4.3 3区 环境科学与生态学
Environmental Science: Processes & Impacts Pub Date : 2025-03-04 DOI: 10.1039/D4EM00516C
Tolganay B. Egorova, Anna Yu Romanchuk, Alexander V. Egorov, Alexander L. Trigub, Elena V. Zakharova, Anna G. Volkova, Andrey A. Zubkov, Irina E. Vlasova and Stepan N. Kalmykov
{"title":"Effect of hydrothermal treatment on plutonium retention in deep liquid radioactive waste disposal†","authors":"Tolganay B. Egorova, Anna Yu Romanchuk, Alexander V. Egorov, Alexander L. Trigub, Elena V. Zakharova, Anna G. Volkova, Andrey A. Zubkov, Irina E. Vlasova and Stepan N. Kalmykov","doi":"10.1039/D4EM00516C","DOIUrl":"10.1039/D4EM00516C","url":null,"abstract":"<p >Plutonium (Pu)-containing acidic liquid radioactive waste was injected into a deep sandy aquifer disposal (314–386 m) at the Seversk site, Tomsk Region, Russia, over several decades. Herein, laboratory simulation of the near-field conditions of the injection well was conducted, including the waste zone (acetic acid, hydrothermal conditions at 150 °C, pH 2.4), the zone of displacement solutions (nitric acid, pH 1.9, low-level waste, decreasing temperature) and the remote zone with unaltered disposal sands and neutral pH. A study of Pu behavior in the waste zone during 1 and 3 injection cycles (for 50 h) and an additional 3 months of hydrothermal conditioning revealed Pu(<small>IV</small>) sorption on the surface of secondary precipitates, emphasizing the main role of pH in Pu retention and mobility. X-ray absorption fine structure (XAFS) spectroscopy and high-resolution transmission electron microscopy (HRTEM) were used to determine Pu speciation and preferential phases responsible for Pu retention. Long-term leaching of sorbed Pu proved effective but slow reversible Pu sorption, while multiple injection cycles and additional hydrothermal conditioning reduced the mobility of dissolved Pu species by stabilizing solids containing Pu. Pu(<small>V</small>), partly flowing from the nitric acid zone, is largely retained in the remote zone with neutral pH and fresh sands, serving as a natural migration barrier.</p>","PeriodicalId":74,"journal":{"name":"Environmental Science: Processes & Impacts","volume":" 4","pages":" 1003-1012"},"PeriodicalIF":4.3,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Correction: Soil contamination by environmentally persistent free radicals and dioxins following train derailment in East Palestine, OH 更正:俄亥俄州东巴勒斯坦火车脱轨后,环境持久性自由基和二恶英污染土壤。
IF 4.3 3区 环境科学与生态学
Environmental Science: Processes & Impacts Pub Date : 2025-03-03 DOI: 10.1039/D5EM90009C
Myron L. Lard, Sarah E. Eichler, Peng Gao, Kuldeep Singh, Joseph D. Ortiz, Robert L. Cook, Slawomir Lomnicki, Stephania A. Cormier and Jennifer Richmond-Bryant
{"title":"Correction: Soil contamination by environmentally persistent free radicals and dioxins following train derailment in East Palestine, OH","authors":"Myron L. Lard, Sarah E. Eichler, Peng Gao, Kuldeep Singh, Joseph D. Ortiz, Robert L. Cook, Slawomir Lomnicki, Stephania A. Cormier and Jennifer Richmond-Bryant","doi":"10.1039/D5EM90009C","DOIUrl":"10.1039/D5EM90009C","url":null,"abstract":"<p >Correction for ‘Soil contamination by environmentally persistent free radicals and dioxins following train derailment in East Palestine, OH’ by Myron L. Lard <em>et al.</em>, <em>Environ. Sci.: Processes Impacts</em>, 2025, https://doi.org/10.1039/d4em00609g.</p>","PeriodicalId":74,"journal":{"name":"Environmental Science: Processes & Impacts","volume":" 3","pages":" 804-804"},"PeriodicalIF":4.3,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11875061/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143539552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Sorption kinetics of metallic and organic contaminants on micro- and nanoplastics: remarkable dependence of the intraparticulate contaminant diffusion coefficient on the particle size and potential role of polymer crystallinity† 金属和有机污染物在微塑料和纳米塑料上的吸附动力学:颗粒内污染物扩散系数与颗粒大小的显著相关性以及聚合物结晶度的潜在作用。
IF 4.3 3区 环境科学与生态学
Environmental Science: Processes & Impacts Pub Date : 2025-02-28 DOI: 10.1039/D4EM00744A
Raewyn M. Town, Herman P. van Leeuwen and Jérôme F. L. Duval
{"title":"Sorption kinetics of metallic and organic contaminants on micro- and nanoplastics: remarkable dependence of the intraparticulate contaminant diffusion coefficient on the particle size and potential role of polymer crystallinity†","authors":"Raewyn M. Town, Herman P. van Leeuwen and Jérôme F. L. Duval","doi":"10.1039/D4EM00744A","DOIUrl":"10.1039/D4EM00744A","url":null,"abstract":"<p >We developed a mechanistic diffusion model to describe the sorption kinetics of metallic and organic contaminants on nano- and micro-plastics. The framework implements bulk depletion processes, transient fluxes, and fully adaptable particle/water boundary conditions, <em>i.e.</em> not only the typically assumed simple linear Henry regime, which is not applicable to many contaminant-particle situations. Thus, our model represents a flexible and comprehensive theory for the analysis of contaminant sorption kinetics, which goes well beyond the traditional empirical pseudo first or second order kinetic equations. We applied the model to the analysis of a large body of literature data on the equilibrium and kinetic features of sorption of a wide range of contaminants by diverse types and sizes of plastic particles. Results establish the paramount importance of sorption boundary conditions (Henry, Langmuir, or Langmuir–Freundlich) and reveal interesting and often overlooked sorption features that depend on the plastic particle size and the extent to which the target compound is depleted in the bulk medium. The greater degree of polymer crystallinity reported for smaller particles may underlie our findings that the intraparticulate contaminant diffusion coefficient decreases with a decreasing particle size. We establish a universal law to predict the sorption kinetics and diffusion of any compound within any plastic phase, which has far reaching importance across many domains relevant to the environment and human health.</p>","PeriodicalId":74,"journal":{"name":"Environmental Science: Processes & Impacts","volume":" 3","pages":" 634-648"},"PeriodicalIF":4.3,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/em/d4em00744a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143522084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Characterizing amino compounds in indoor poultry farms: air quality and its impact on workers and chickens in Canadian egg farms† 室内家禽农场的氨基化合物特征:加拿大鸡蛋农场的空气质量及其对工人和鸡的影响。
IF 4.3 3区 环境科学与生态学
Environmental Science: Processes & Impacts Pub Date : 2025-02-26 DOI: 10.1039/D4EM00254G
Xinyang Guo, Rowshon Afroz, Shuang Wu, Kimberly Wong, Valerie Carney, M. J. Zuidhof, Joey Saharchuk, Hans Osthoff and Ran Zhao
{"title":"Characterizing amino compounds in indoor poultry farms: air quality and its impact on workers and chickens in Canadian egg farms†","authors":"Xinyang Guo, Rowshon Afroz, Shuang Wu, Kimberly Wong, Valerie Carney, M. J. Zuidhof, Joey Saharchuk, Hans Osthoff and Ran Zhao","doi":"10.1039/D4EM00254G","DOIUrl":"10.1039/D4EM00254G","url":null,"abstract":"<p >Indoor air pollution is a common problem in poultry and many livestock facilities. Small airborne amino chemicals (AACs), such as ammonia and short-chain amines, are common air pollutants in poultry farms. An elevated concentration of AACs can reduce the indoor air quality (IAQ) of the farm, affecting the production of chicken eggs, the welfare of the animals, and the occupational health of producers. Recent studies have identified ammonia and small volatile organic pollutants in poultry farms. However, the characterization of large AACs, such as uric acid (UA) and large amines, has rarely been reported, although many of them have been proposed as the main form of biological nitrogen waste. Our goal is to provide information on organic amino pollutants in poultry farms. This project includes an online aerosol sample using a particle-into-liquid sampler (PILS) and an offline chemical analysis using liquid chromatography mass spectrometry (LC-MS). With a selective characterization of AACs in a poultry farm, we found that UA and suspended particles are correlated with onsite management practices, such as barn lights. Among the three major indoor phases (gas, particles, and litter) in the facility, we report the phase partition of UA, NH<small><sub>3</sub></small>, NH<small><sub>4</sub></small><small><sup>+</sup></small>, and large amines. The observation of these indoor pollutants has implications on the formation of dust particles and ammonia, and the results can benefit the poultry industry in solving persistent IAQ problems.</p>","PeriodicalId":74,"journal":{"name":"Environmental Science: Processes & Impacts","volume":" 4","pages":" 960-973"},"PeriodicalIF":4.3,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/em/d4em00254g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Antimony mobility in soils: current understanding and future research directions 土壤中锑的迁移:当前认识与未来研究方向。
IF 4.3 3区 环境科学与生态学
Environmental Science: Processes & Impacts Pub Date : 2025-02-25 DOI: 10.1039/D4EM00743C
Lara da Costa, Jakob Zopfi, Christine Alewell, Moritz F. Lehmann and Markus Lenz
{"title":"Antimony mobility in soils: current understanding and future research directions","authors":"Lara da Costa, Jakob Zopfi, Christine Alewell, Moritz F. Lehmann and Markus Lenz","doi":"10.1039/D4EM00743C","DOIUrl":"10.1039/D4EM00743C","url":null,"abstract":"<p >Antimony (Sb) has gained increased attention over the past few decades due to its possible detrimental effects on biota and its potential to leach and disperse from contaminated soils. The fate of Sb in the environment is largely controlled by its chemical speciation, as well as the speciation of solid phases (<em>e.g.</em> Mn/Fe-oxyhydroxides) that interact with Sb in soils. Microbes have the capacity to facilitate a multitude of oxidation and reduction reactions in soils. Therefore, they exert control over the reactivity of Sb in the environment, either directly and/or indirectly, by changing Sb speciation and/or affecting the redox state of soil solid phases. Here, we outline processes that determine the behaviour of Sb in soils. We conclude that based on laboratory studies there is a good theoretical understanding of pure soil components interacting with Sb species. However, comparatively little is known concerning the contribution of these interactions in complex natural systems that are dynamic in terms of biogeochemical conditions and that can hardly be simulated using laboratory incubations. We note that important biochemical foundations of microbially driven Sb conversions (<em>i.e.</em> molecular constraints on organisms, genes and enzymes involved) have emerged recently. Again, these are based on laboratory incubations and investigations in environments high in Sb. In this regard, an important remaining question is which microorganisms actively impact Sb speciation under real-world conditions, in particular where Sb concentrations are low. Multiple dissolved Sb species have been described in the literature. We note that more analytical development is needed to identify and quantify possible key Sb species in natural systems, as well as anthropogenically impacted environments with only moderate Sb concentrations. With these research needs addressed, we believe that the Sb fate in the environment can be more accurately assessed, and remediation options can be developed.</p>","PeriodicalId":74,"journal":{"name":"Environmental Science: Processes & Impacts","volume":" 4","pages":" 833-848"},"PeriodicalIF":4.3,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/em/d4em00743c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143661635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Ecotoxicity risk assessment of amines used in ‘switchable water’ and CO2-capturing processes† “可转换水”和二氧化碳捕获过程中使用的胺的生态毒性风险评估。
IF 4.3 3区 环境科学与生态学
Environmental Science: Processes & Impacts Pub Date : 2025-02-25 DOI: 10.1039/D4EM00657G
Alina Ismagilova, Veljo Kisand and Lauri Vares
{"title":"Ecotoxicity risk assessment of amines used in ‘switchable water’ and CO2-capturing processes†","authors":"Alina Ismagilova, Veljo Kisand and Lauri Vares","doi":"10.1039/D4EM00657G","DOIUrl":"10.1039/D4EM00657G","url":null,"abstract":"<p >Utilizing amines and alkanolamines as CO<small><sub>2</sub></small>-capturing agents and water-soluble ionogens in ‘switchable water’ systems is an intensively explored research area. However, the potential risks of such amine derivatives to the environment have been poorly evaluated. In this work, we report on the ecotoxicological effect of relevant amines and alkanolamines in an aqueous environment on various classes of organisms such as bacteria (<em>Aliivibrio fischeri</em>), vascular plants (<em>Spirodela polyrhiza</em>), and invertebrates (<em>Daphnia magna</em>). The measured half maximal effective concentration (EC<small><sub>50</sub></small>) data indicate that all tested alkanolamines and most amines have EC<small><sub>50</sub></small> values over 100 mg L<small><sup>−1</sup></small> and can be classified as practically harmless or harmless. On the other hand, tetramethyl-1,3-propane diamine afforded EC<small><sub>50</sub></small> values between 61 and 73 mg L<small><sup>−1</sup></small>, indicating moderate toxicity towards invertebrates and vascular plants. Moreover, we observed a good agreement between the experimental results and the ECOSAR predictive model. Thus, our work indicates that hydrophilic amines and alkanolamines utilized in emerging CO<small><sub>2</sub></small>-mediated processes can generally be considered harmless or practically harmless in an aqueous environment towards bacteria, vascular plants, and invertebrates, except more lipophilic diamines, which may need careful consideration.</p>","PeriodicalId":74,"journal":{"name":"Environmental Science: Processes & Impacts","volume":" 4","pages":" 974-980"},"PeriodicalIF":4.3,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/em/d4em00657g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143571586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Electron exchange capacity of dissolved natural organic matter: further method development and interpretation using square wave voltammetry in dimethyl sulfoxide† 溶解天然有机物的电子交换能力:二甲亚砜中方波伏安法的进一步发展和解释。
IF 4.3 3区 环境科学与生态学
Environmental Science: Processes & Impacts Pub Date : 2025-02-25 DOI: 10.1039/D4EM00555D
Jeffrey M. Hudson, Han Cao, Wenqing Xu and Paul G. Tratnyek
{"title":"Electron exchange capacity of dissolved natural organic matter: further method development and interpretation using square wave voltammetry in dimethyl sulfoxide†","authors":"Jeffrey M. Hudson, Han Cao, Wenqing Xu and Paul G. Tratnyek","doi":"10.1039/D4EM00555D","DOIUrl":"10.1039/D4EM00555D","url":null,"abstract":"<p >Most measurements of the electron exchange capacity (EEC) of natural organic matter (NOM) have been done in water using mediated chronoamperometry (MCA), which gives precise results that are believed to be representative of the samples' current redox condition, but the broader significance of these EECs is less clear. In a recent study, we described a novel but complementary electrochemical approach to quantify EECs of 10 pyrogenic dissolved organic matter (pyDOM) and 6 standard/reference natural organic matter (NOM) materials without mediation using square-wave voltammetry (SWV) in dimethyl sulfoxide (DMSO). Comparison of the results obtained by MCA and SWV showed that SWV in DMSO gave larger EECs than MCA, by several-fold for NOM and 1–2 orders of magnitude for pyDOM. In this study, we describe an improved protocol for calibration of the SWV/DMSO method, which largely eliminates the difference in EECs from SWV and MCA for the standard/reference NOM samples. The results show that values obtained <em>via</em> the SWV method depend on the specific redox standards used for calibration (<em>i.e.</em>, calibrant model compounds), with slopes that span 1.5 orders of magnitude due to variations in current response factors. For pyDOM, the higher values of EEC obtained by SWV were further verified and rationalized. Like the calibrant model compounds, it is proposed that the relatively large EECs for some pyDOM samples from high-temperature chars reflect a combination of hydrodynamic influences in our electrochemical cell, primarily related to electrode surface area to volume ratio and pyDOM size. A detailed explanation of the calibration method, choice of working electrode, DOM sorption effects, and cosolvent effects are discussed. The results obtained with this method suggest that the capacity of NOM for donating, accepting, and storing elections is an operationally defined property, the significance of which will depend on application, <em>e.g.</em>, to carbon, metal, or nutrient cycling, pollutant attenuation, <em>etc.</em></p>","PeriodicalId":74,"journal":{"name":"Environmental Science: Processes & Impacts","volume":" 4","pages":" 917-935"},"PeriodicalIF":4.3,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143522083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Distribution and risk assessment of antibiotic resistance genes in swine farm wastewater and its surrounding environments: from soil to water† 猪场废水及其周边环境中抗生素耐药基因的分布与风险评估:从土壤到水。
IF 4.3 3区 环境科学与生态学
Environmental Science: Processes & Impacts Pub Date : 2025-02-24 DOI: 10.1039/D4EM00687A
Haiyue Ma, Jinping Du, Ting Xu, Daqiang Yin, Xiaoling Fang and Xueping Guo
{"title":"Distribution and risk assessment of antibiotic resistance genes in swine farm wastewater and its surrounding environments: from soil to water†","authors":"Haiyue Ma, Jinping Du, Ting Xu, Daqiang Yin, Xiaoling Fang and Xueping Guo","doi":"10.1039/D4EM00687A","DOIUrl":"10.1039/D4EM00687A","url":null,"abstract":"<p >Livestock farms are important reservoirs of antibiotic resistance genes (ARGs). However, how wastewater irrigation from swine farms affects the surrounding environments, especially water bodies, is not fully understood. In this study, the occurrence pattern and potential risk of ARGs and mobile gene elements (MGEs) in a biogas slurry from a large-scale swine farm and its surrounding environments were investigated. Genes conferring resistance to tetracycline, sulfonamide, and multidrugs were found to be predominant in the biogas slurry, while sulfonamide and multidrug resistance genes exhibited the highest abundance in the surrounding environments. Overall, the total relative abundance of ARGs in the biogas slurry was 1.4–7 fold higher than that in the surrounding environments. PCA revealed the cluster pattern of samples based on sample types and a better correlation between swine farm wastewater and groundwater. A higher abundance of ARGs was found in groundwater farther away from the swine farm than that in nearby groundwater and surface water. Correlation analysis indicated that ARGs had a significant positive correlation with MGEs at each sampling site. The most abundant MGE <em>IS6100</em> may mediate the horizontal transfer of <em>lnuA</em> from the swine farm to nearby groundwater. Considering the abundance, mobility, host pathogenicity, and the co-occurrence patterns with MGEs of ARGs, nine high-risk ARGs, namely, <em>aadA2</em>, <em>aadA17</em>, <em>aac (6′)-Ib</em>, <em>tetX</em>, <em>tetG</em>, <em>tetM</em>, <em>oprJ</em>, <em>sul1</em>, and <em>ermF</em>, were screened in the environment. Our results indicated that the swine farm wastewater had long-term effects on the surrounding surface water and groundwater and that MGEs can serve as a medium that contributes to the widespread distribution of various ARGs. This study provides a theoretical basis for the risk assessment of ARGs in farms and the reuse of farm wastewater.</p>","PeriodicalId":74,"journal":{"name":"Environmental Science: Processes & Impacts","volume":" 3","pages":" 741-751"},"PeriodicalIF":4.3,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Ecological properties uniquely dictate molecular-level soil organic matter composition in a temperate forest in Central Europe with variation in litter deposition† 中欧温带森林的生态特性独特地决定了土壤有机质的分子级组成,同时也决定了枯落物沉积量的变化。
IF 4.3 3区 环境科学与生态学
Environmental Science: Processes & Impacts Pub Date : 2025-02-24 DOI: 10.1039/D4EM00462K
Isla Wrightson, Maryam Tabatabaei Anaraki, István Fekete, Zsolt Kotroczó, Kate Lajtha and Myrna J. Simpson
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