Environmental Research最新文献

{"title":"Identification of carbon and nitrogen multimedia fate in bioretention based on 13C and 15N isotope tracers","authors":"Jianlong Wang ,&nbsp;Haochen Qin ,&nbsp;Xueting Wang ,&nbsp;Fangfang Lv ,&nbsp;Yimeng Dai","doi":"10.1016/j.envres.2025.121837","DOIUrl":"10.1016/j.envres.2025.121837","url":null,"abstract":"<div><div>Bioretention is one of the widely used green stormwater infrastructural measures for the efficient removal of pollutants from stormwater runoff. However, the multimedia fate of carbon and nitrogen within these systems is still not completely understood. In this work, we employed ¹³C and ¹⁵N isotope tracers to investigate the chemical transformation of carbon and nitrogen across different media layers in the bioretention. The results of ¹³C isotope tracing revealed that carbon was predominantly lost via CO₂ emission, from 36 to 46 %, while other forms of carbon loss contributed by 23–42 %. On the other side, ¹⁵NH₄⁺-N was primarily retained in the soil, comprising from 25 to 67 %; microbial adsorption was identified as the main pathway for ¹⁵NO₃⁻-N, with a contribution from 31 to 54 %, while other forms of nitrogen loss contributed by 7–37 %. This work identified the multimedia fate of carbon and nitrogen across different media layers in the bioretention, providing a theoretical foundation for bioretention-mediated pollutants removal from stormwater runoff.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"279 ","pages":"Article 121837"},"PeriodicalIF":7.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072138","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":"MOFs-based aerogels and their derivatives for water treatment: A review","authors":"Ranran Fu ,&nbsp;Ruixue Wang ,&nbsp;Chaohai Wang ,&nbsp;Shiyu Zhang ,&nbsp;Junning Wang ,&nbsp;Rongfu Peng ,&nbsp;Xinfeng Zhu ,&nbsp;Haiyan Kang ,&nbsp;Yanli Mao","doi":"10.1016/j.envres.2025.121824","DOIUrl":"10.1016/j.envres.2025.121824","url":null,"abstract":"<div><div>Metal-organic frameworks (MOFs) are a class of environmental nano-materials composed of metal ions and organic ligands with remarkable physical and chemical properties, such as huge specific surface area as well as abundant pore volume. Based on their unique structures and properties, MOFs have demonstrated potential applications in the fields of adsorption, gas storage, separation membranes, and catalysis, and have become popular candidates in water treatment technologies. However, MOFs particles in powder form are prone to agglomeration and adhesion effects in water, which leads to problems such as difficult separation and secondary pollution. As an ideal carrier for MOFs, aerogels exhibit a unique three-dimensional interconnected pore structure, which endows aerogels with high porosity properties and excellent adsorption capacity. Researchers have skillfully combined MOFs with aerogels to create a new type of MOF aerogel composites (MOFACs). These composites are converted into highly porous and high-strength carbon aerogels through a high-temperature pyrolysis process in an inert environment. These carbon aerogels not only retain the high catalytic efficiency of MOFs, but also inherit the advantages of aerogels in terms of light weight, low density and easy handling. This paper reviews various types of MOFACs, each of which possesses different chemical compositions and physical properties, thus adapting to different applications. The paper also discusses the applications of MOFACs and carbon aerogels in water treatment for catalysis, selective adsorption and solid phase microextraction.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"279 ","pages":"Article 121824"},"PeriodicalIF":7.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072196","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":"Environmental occurrence of perfluorooctanesulfonic acid from sulfluramid-based ant bait usage and its ecotoxicological risks","authors":"Yago Guida ,&nbsp;Robson Rolland Monticelli Barizon ,&nbsp;Fábio Kummrow ,&nbsp;Dhoone Menezes-Sousa ,&nbsp;Márcia Regina Assalin ,&nbsp;Maria Aparecida Rosa ,&nbsp;Ricardo Antônio Almeida Pazianotto ,&nbsp;José Tadeu de Oliveira Lana","doi":"10.1016/j.envres.2025.121851","DOIUrl":"10.1016/j.envres.2025.121851","url":null,"abstract":"<div><div>In laboratory trials, sulfluramid (N-ethyl perfluorooctane sulfonamide; EtFOSA) has been shown to degrade into perfluorooctanesulfonic acid (PFOS) under aerobic conditions, including in Brazilian agricultural soils. Thus, we aimed to investigate the environmental occurrence of PFOS in agricultural areas mostly used for forestry, where sulfluramid-based ant baits are primarily used. Surface water, groundwater, and sediment samples were collected from selected micro-watersheds, primarily used for forest plantation, and PFOS and its precursors were assessed by ultra-performance liquid chromatography coupled to a triple quadrupole mass spectrometer. PFOS was the most frequently detected compound, present in 76 % of surface water samples, with concentrations up to 50.6 ng L⁻¹. EtFOSA and perfluorooctane sulfonamide (FOSA) were also detected, but at lower frequencies and concentrations. The highest PFOS concentrations were found in the watershed with mixed urban/industrial and agricultural activities, indicating multiple contamination sources. However, groundwater samples from monitoring wells inside planted forests of Pine and Eucalyptus also showed detectable PFOS contamination, likely due to the biodegradation of EtFOSA from ant bait applications. Sediment samples revealed seasonal variations, with higher detection rates during the dry season, suggesting a high-mobility of the studied compounds. Risk assessment using the risk quotient (RQ) approach indicated that all measured PFOS concentrations exceeded the European Union's annual average environmental quality standard (AA-EQS) for inland surface waters, posing potential risks to aquatic biota. This study endorses the need for ongoing monitoring, regulations, and safer pest control alternatives to mitigate PFOS contamination and its environmental risks.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"279 ","pages":"Article 121851"},"PeriodicalIF":7.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144075163","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":"Maternal pre-pregnancy overweight/obesity, in-utero exposure to toxic heavy metals, and offspring age at peak height velocity: A prospective birth cohort study","authors":"Aomi Katagiri ,&nbsp;Zeyu Li ,&nbsp;Guoying Wang ,&nbsp;Pamela J. Surkan ,&nbsp;Xiaobin Wang ,&nbsp;Takeo Fujiwara","doi":"10.1016/j.envres.2025.121829","DOIUrl":"10.1016/j.envres.2025.121829","url":null,"abstract":"<div><h3>Introduction</h3><div>Research on <em>in-utero</em> heavy metal exposure shows inconsistent results on offspring pubertal timing. We aim to contribute to understanding the association between heavy metal exposures and age at peak height velocity (APHV), an indicator of pubertal timing, and to investigate the joint associations of heavy metal concentrations and previously known risk factors.</div></div><div><h3>Methods</h3><div>We included 956 mother-child dyads from the Boston Birth Cohort. Heavy metal concentrations were measured in maternal red blood cells collected 24–72 h after delivery. Offspring APHV was calculated using mixed-effects growth curve models based on repeated height measurements over time. Firstly, we investigated maternal lead, cadmium and mercury level in association with APHV using multivariate linear regression models. Secondly, we estimated the joint associations of maternal pre-pregnancy overweight/obesity (or race/ethnicity) and heavy metal concentrations with APHV, after adjusting for confounders. Thirdly, we applied a Bayesian kernel machine regression (BKMR) model to investigate the association between the heavy metal mixture and APHV.</div></div><div><h3>Results</h3><div>Overall, prenatal heavy metal exposure was modestly inversely (but not statistically significantly) associated with earlier offspring APHV. Both childhood and maternal pre-pregnancy overweight/obesity were associated with an earlier APHV. Non-Hispanic Black males had an earlier APHV than other race/ethnicity males. Moreover, high lead and cadmium concentrations and maternal pre-pregnancy overweight/obesity were jointly associated with APHV in males only and females only, respectively. The joint exposure of maternal pre-pregnancy overweight/obesity and high lead concentrations were associated with earlier APHV among males, and likewise maternal pre-pregnancy overweight/obesity and high cadmium concentrations with earlier APHV among females. The joint associations of non-Hispanic Black race/ethnicity and high concentrations of lead and mercury with APHV were observed in males.</div></div><div><h3>Conclusions</h3><div>Our findings suggest that maternal pre-pregnancy overweight/obesity prevention and environmental toxic chemicals control may help attenuate the secular trend of early puberty, particularly among non-Hispanic Black individuals.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"279 ","pages":"Article 121829"},"PeriodicalIF":7.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144075167","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":"Biochemical biomarker profiles of different organs of Phrynops geoffroanus freshwater turtle (Testudines, Chelidae) reveal pollutant effects from an anthropized aquatic environment","authors":"Maria Isabel Afonso da Silva ,&nbsp;Daína Lima ,&nbsp;Larissa Paola Rodrigues Venancio ,&nbsp;Tiago Lucena da Silva ,&nbsp;Claudia Regina Bonini Domingos ,&nbsp;Eduardo Alves de Almeida","doi":"10.1016/j.envres.2025.121847","DOIUrl":"10.1016/j.envres.2025.121847","url":null,"abstract":"<div><div>Aquatic organisms are often exposed to various chemicals, whose individual components are likely to produce different responses within the organisms and/or interact leading to toxic effects. The <em>Phrynops geoffroanus</em> species (“Geoffroy's side-necked turtle”, Schweigger, 1812), a freshwater turtle endemic of South America, is commonly found in polluted rivers that cross the urban area and receive domestic and industrial wastewater effluents. In order to evaluate changes in biochemical biomarker profiles in different organs (liver, heart, lung, pancreas, small and large intestines) of <em>P. geoffroanus</em> from an anthropized aquatic environment, we analyzed the responses of enzymes involved in xenobiotic biotransformation, antioxidant enzymes, and lipid peroxidation levels. Acetylcholinesterase (AChE) activity was also assessed to check for neurotoxic effects. Results revealed that the poor water quality of a highly anthropized stream perturbed the biochemical parameters of free-living freshwater turtles. Compared to animals from the reference site (breeding farm), those from the polluted site presented increased biotransformation activity, antioxidant responses, and lipid peroxidation levels, indicative of oxidative stress. AChE activity was decreased in the pancreas. Alterations of different biomarkers in specific organs indicated differences in susceptibility among different organs of this species. These data contribute to a better understanding of how these animals respond to environmental pollutants, suggesting this species as good sentinel organisms for ecotoxicological studies.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"279 ","pages":"Article 121847"},"PeriodicalIF":7.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144075228","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":"Carcinogenicity of extremely low-frequency magnetic fields: A systematic review of animal studies","authors":"Jukka Luukkonen ,&nbsp;Päivi Roivainen ,&nbsp;Valtteri Nieminen ,&nbsp;Jonne Naarala ,&nbsp;Ehab Mustafa ,&nbsp;Jukka Juutilainen","doi":"10.1016/j.envres.2025.121819","DOIUrl":"10.1016/j.envres.2025.121819","url":null,"abstract":"<div><div>Possible carcinogenicity of extremely low frequency (ELF) magnetic fields (MFs), associated with the use and transmission of electricity, has been under scientific and public debate for decades. This review aims to provide an update on studies testing carcinogenicity of ELF MFs in experimental animals. Emphasis was placed on identifying possible connections between study characteristics and the results obtained. This review followed the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) statement, and the methodological quality of the studies was evaluated using the Risk of Bias Rating Tool for Human and Animal Studies developed by the National Toxicology Program's Office of Health Assessment and Translation (OHAT). Publication bias was assessed using the caliper test. Fifty-four eligible studies were identified. Despite poor ratings in certain aspects of the risk of bias evaluation, the quality of the studies was generally relatively good, with only four studies receiving the weakest rating. Overall, there was very little evidence that ELF MFs alone are carcinogenic. Evidence of co-carcinogenicity, from studies that have used ELF MFs in combination with other agents, remains inconclusive. A clear indication of publication bias was observed, though it is unlikely that this bias alone explains all reported MF-modified effects. Based on the current literature, future studies on co-carcinogenicity of ELF MFs should employ approaches other than classical initiation-promotion models. Additionally, well-designed studies to better understand the reported effects of ELF MFs and the underlying mechanisms are warmly welcomed.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"279 ","pages":"Article 121819"},"PeriodicalIF":7.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144075230","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":"Response of life-history traits, population dynamics, offspring size of Brachionus plicatilis exposure to BTBPE","authors":"Zhongqi Dai ,&nbsp;Yu Zhang ,&nbsp;Meng Dong ,&nbsp;Yanchao Chai ,&nbsp;Jilong Ren ,&nbsp;Lei Wang ,&nbsp;Cui Han","doi":"10.1016/j.envres.2025.121848","DOIUrl":"10.1016/j.envres.2025.121848","url":null,"abstract":"<div><div>The novel brominated flame retardant 1, 2-bis (2,4,6 tribromophenoxy) ethane (BTBPE) has been widely used since the mid-1970s and detected in the aquatic environment and organisms; however, little information is available regarding its biotoxicity. In this study, the life-history parameters, transcriptomic regulation, multi-generational offspring size, and population dynamics of rotifers were determined in response to BTBPE (0, 0.01, 1, and 100 μg/L). The results showed that BTBPE (&gt;1 μg/L) significantly increased the pre-reproductive time, shortened both reproduction periods and the lifespan, and decreased the total number of rotifer offspring. Transcriptomic analysis revealed that the expression of key genes involved in the pathways of citrate cycle, 2-oxocarboxylic acid metabolism, carbon metabolism, and propanoate metabolism was affected. Moreover, BTBPE has transgenerational effects on rotifers, the size of the F1 to F5 generations decreased significantly in response to BTBPE. Finally, the population density in the 100 μg/L BTBPE treatment group was significantly reduced by 30 % compared to the control group, suggesting that the population growth of rotifers was inhibited by BTBPE exposure. The findings of this study indicate that BTBPE has effects on the individual reproduction, population growth, offspring quality, and energy metabolism of rotifers. These findings highlighted the potential impacts of BTBPE on dominant zooplankton species, providing useful baseline information for evaluating the potential ecological risk of novel brominated flame retardant.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"279 ","pages":"Article 121848"},"PeriodicalIF":7.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072202","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":"Evaluation of functional capacity and plastic-degrading potential of Bacillus spp. and other bacteria derived from the Getliņi landfill (Latvia)","authors":"Sara Pereira ,&nbsp;Marta Rubina ,&nbsp;Ance Roga ,&nbsp;Tūrs Selga ,&nbsp;Edmunds Skinderskis ,&nbsp;Dita Gudrā ,&nbsp;Ineta Kalniņa ,&nbsp;Kārlis Vonda ,&nbsp;Dāvids Fridmanis ,&nbsp;Olga Muter","doi":"10.1016/j.envres.2025.121849","DOIUrl":"10.1016/j.envres.2025.121849","url":null,"abstract":"<div><div>The mechanisms of plastic biodegradation by microorganisms remain poorly understood because of high variability in environmental conditions. This study aimed to isolate, identify, and characterise bacteria with plastic-degrading potential derived from the Getliņi EKO landfill (Riga, Latvia). Among the bacteria selected, <em>Bacillus</em> was the predominant genus identified, whereas <em>Pseudomonas</em> dominated the metagenome. Comparative testing revealed the highest non-specific esterase activity in cultures of <em>B. licheniformis</em> and <em>B. altitudinis</em>. Following a 6-week batch experiment, a newly developed bacterial consortium biologically reduced the weight of untreated low-density polyethylene (LDPE), polyethylene terephthalate (PET), and high-density polyethylene (HDPE) by 19.44 %, 5.99 %, and 2.58 %, respectively. Thermally pre-treated PET and acid pre-treated HDPE resulted in greater weight losses than their respective untreated forms. Scanning electron microscopy primarily showed single cells and microcolonies attached to the granule surfaces. Microbial respiration and fluorescein diacetate hydrolysis tests suggested that the granules had a stimulating effect on the metabolic activity of planktonic cells. Cultures with untreated LDPE and PET exhibited the highest ecotoxicity for <em>Thamnocephalus platyurus</em>, reducing ingestion activity by 60.39 % and 71.25 % of the control, respectively. In conclusion, the Getliņi EKO landfill appears to be a promising sampling source for bacteria capable of biodegrading fossil-based polymers. Further refinement of methods for the isolation and evaluation of plastic degraders will provide new insights into the potential of microbial resources for plastic degradation.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"279 ","pages":"Article 121849"},"PeriodicalIF":7.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144075165","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":"Dynamic microbial community assembly and molecular ecological network responses in biological activated carbon filters: effects of algal organic matter exposure and empty bed contact time","authors":"Fei Han ,&nbsp;Zhiwei Zhou ,&nbsp;Chaoran Liu ,&nbsp;Zedong Lu ,&nbsp;Liping Tian ,&nbsp;Xing Li","doi":"10.1016/j.envres.2025.121833","DOIUrl":"10.1016/j.envres.2025.121833","url":null,"abstract":"<div><div>Biological activated carbon (BAC) filtration plays a crucial role in advanced drinking water treatment. Recent researches have shifted from decontamination performance evaluation to process optimization and customization of microbial communities. The responses of microbial communities to seasonal water quality variations caused by algal outbreaks or deaths, and operational conditions of filtration medium and empty bed contact time (EBCT), along with dynamics of assembly processes and molecular ecological networks remain insufficiently understood. Herein, the decontamination performance of four BAC columns packed with varied physicochemical properties of granular activated carbon (GAC), exposed to algal organic matter (AOM) and changes of EBCT was investigated. Microbial diversity, assembly mechanisms, and dynamics of molecular ecological networks were systematically evaluated. Results showed that coal-based BAC exhibited superior decontamination performance under AOM exposure, with average removals of COD_Mn (47.23 %), UV₂₅₄ (55.82 %), and NH₄⁺-N (65.01 %), along with higher microbial diversity and richness than that of wood-based BAC. AOM exposure increased microbial diversity, while shortened EBCT reduced it. Deterministic processes in community assembly intensified under both AOM exposure and a shortened EBCT of 10 min, the proportion were up to 82 % and 75 %, respectively. AOM exposure increased network scale and complexity, whereas the opposite trend was observed with a shortened EBCT of 10min. Structural equation modeling identified that influent water quality (path coefficient = 1.00) was the dominant driver of microbial diversity, followed by GAC properties (0.30) and EBCT (−0.35). These findings provide insights for microbial community customization and BAC process optimization to control algal-derived organic contamination.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"279 ","pages":"Article 121833"},"PeriodicalIF":7.7,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068356","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":"An innovative method for identifying aquatic environmental characteristics: construction of water quality fingerprint spectrum and combination with two-dimensional correlation spectroscopy analysis","authors":"Kuotian Lu ,&nbsp;Xiaobo Gao ,&nbsp;Dongping Liu ,&nbsp;Shixiang Zhang ,&nbsp;Qingqian Li ,&nbsp;Hongjie Gao ,&nbsp;Huibin Yu","doi":"10.1016/j.envres.2025.121810","DOIUrl":"10.1016/j.envres.2025.121810","url":null,"abstract":"<div><div>With the deterioration of water quality and explosion of data scale, the diversification and complication of water quality analysis tasks are increasing, which require advanced analysis and visualization methods. Current multivariate statistical methods face challenges in processing multi-dimensional data and conducting causal analysis of fluctuations in water quality over temporal or spatial variations. In this study, a water quality fingerprint spectrum was constructed to perform multiscale and large-volume dataset. Based on the water quality fingerprint spectrum, a workflow of water quality was proposed for exploring the priority control regions, periods, and parameters were identified, and the key factors and effect pathways of response mechanisms, which consisted of three modules: data preparation, data interpretation, and causal analysis. In this study, we constructed a water quality fingerprint spectrum based on 792 water quality data from Lake Shahu as an example to present the methodology. The results showed that COD_Cr, TN, and TP were identified as priority control parameters of Lake Shahu, which were mainly affected by tourism activities and water replenishment. According to the results to conduct causal analysis, we found that the water replenishment could directly improve water quality (total effect: −0.464) by inhibition of algal growth and dilution of COD_Cr and TP concentrations, while tourism activities do the opposite (total effect: 0.562). The innovative analysis method conducted a thorough examination of fluctuations in water quality over spatio-temporal variations and paved the way between data and practical requirements in future works of water quality analysis and management.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"279 ","pages":"Article 121810"},"PeriodicalIF":7.7,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946629","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}