Soil & Environmental Health最新文献

{"title":"Pseudo-persistence of organic fertilizer-derived antimicrobials and estrogens in soil profiles and their potential ecological risks","authors":"Hui Zhi,&nbsp;Hefa Cheng","doi":"10.1016/j.seh.2024.100099","DOIUrl":"10.1016/j.seh.2024.100099","url":null,"abstract":"<div><p>Organic fertilizer-derived emerging contaminants, such as antimicrobials and estrogens, could migrate vertically into subsoil and potentially reach shallow groundwater aquifers. This study investigated the vertical distribution of these antimicrobials and estrogens in soil profiles, as well as their potential ecological risks, in the Yellow River Delta of China, a major agricultural zone. A total of 47 emerging contaminants, including 42 antimicrobials, 2 antimicrobial degradation products, and 3 estrogens, along with reference contaminant atrazine, were detected within 7 soil layers that were down to 1 ​m below the surface at 10 farmland sites. The concentrations of individual contaminants varied greatly in these soil layers, ranging from 0.0095 to 1680 ​ng/g. Antimicrobials were ubiquitous (detection frequency up to 85%), while estrogens were only detected occasionally (detection frequency up to 27%). The concentrations of antimicrobials and estrogens in subsoil were generally lower than those in topsoil, e.g., the total concentrations of antimicrobials and estrogens in Level 1 (0–5 ​cm) and Level 7 (70–100 ​cm) at all sampling sites were up to 99.3 and 29.2 ​ng/g, respectively. Nineteen out of the 26 emerging contaminants with relevant toxicity data could pose medium to high ecological risk to potential aquatic organisms, soil microbes, and/or crop plants. The ecological risks posed by the organic fertilizer-derived emerging contaminants were comparable in different soil layers in the soil profiles. These findings demonstrate the pseudo-persistence of these emerging contaminants in soil profiles and their substantial potential ecological risks. The data also indicate the need of controlling the residues of antimicrobials and estrogens in organic fertilizers to protect the quality and health of farmland soils.</p></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"2 3","pages":"Article 100099"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949919424000426/pdfft?md5=f15a90650aa2a636f5c7a417420b0a27&pid=1-s2.0-S2949919424000426-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141715395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Counterion selection for ion controls of CuO-nanoparticles is important for assessing soil biological responses","authors":"Andrew J. Margenot ,&nbsp;Devin A. Rippner ,&nbsp;Peter G. Green ,&nbsp;Kate M. Scow ,&nbsp;Sanjai J. Parikh","doi":"10.1016/j.seh.2024.100094","DOIUrl":"10.1016/j.seh.2024.100094","url":null,"abstract":"<div><p>Environmental evaluations of metal nanoparticles (NP) rely on seperating the effects of the metal NP from its dissolution products. However, the coordinating or counter anion used in experimental controls may potentially influence biotic indicators used in ecotoxicology and soil health monitoring, thereby compromising the ability to detect real nanoparticle effects and potentially confounding interpretation of metal-NP impacts. Using the example of copper oxide (CuO) NP, we demonstrate for the first time that depending on the anion used in the metal ion control (CuCl₂ versus CuSO₄), different and even opposite conclusions may be drawn for CuO-NP effects. This include a key biological indicator such as enzyme activity in soil samples. Moreover, this effect was specific to environmental conditions and indicator type, raising important methodological and interpretive implications to assess the CuO-NP impacts on soils. Our findings imply that assessments of soil health impacts of metal-NP should consider multiple coordinating anion controls for a given metal, especially when the counterion is known to impact the biological indicator including nutrient ions.</p></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"2 3","pages":"Article 100094"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949919424000372/pdfft?md5=fff7676b259adf10985e87fc8d43a836&pid=1-s2.0-S2949919424000372-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141405279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Selenium contents, speciation and bioaccessibility of Se-enriched rice grains from Chinese markets” [Soil Environ. Health 1 (2023) 100037]","authors":"Jing-Yu Zeng ,&nbsp;Dong-Xing Guan ,&nbsp;Zhi-Hua Dai ,&nbsp;Jia-Yi Chen ,&nbsp;Wen-Jie Dong ,&nbsp;Song Ding ,&nbsp;Lena Q. Ma","doi":"10.1016/j.seh.2024.100098","DOIUrl":"10.1016/j.seh.2024.100098","url":null,"abstract":"","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"2 3","pages":"Article 100098"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949919424000414/pdfft?md5=09bbdb4857a829a0495adeb2358e0704&pid=1-s2.0-S2949919424000414-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141841333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative assessment of copper pollution, bioavailability, and ecological risks in soil-cacao systems under organic versus conventional management","authors":"Joseph Osafo Eduah ,&nbsp;Alfred Arthur ,&nbsp;Jerome Agbesi Dogbatse ,&nbsp;Ishmael Amoako-Attah ,&nbsp;Joseph Kobina Essibu","doi":"10.1016/j.seh.2024.100093","DOIUrl":"https://doi.org/10.1016/j.seh.2024.100093","url":null,"abstract":"<div><p>The continuous use of fertilizers and fungicides has triggered copper (Cu) contamination in cacao soils in Ghana, which is a critical issue for the ecological risk and health safety of cacao products. In this study, we investigated Cu pollution, bioavailability, and ecological risk in soil and determined the Cu levels in the cacao nib, shell, and pod husk. Soils were collected at two soil depths (0–15 ​cm and 15–30 ​cm) from 20 cacao farms, under conventional (CCM: chemical-based fertilizers) and organic (OCM: organic-based fertilizers) management practices together with pods. The total Cu concentration ranged from 67.6 to 96.8 ​mg ​kg⁻¹ in OCM and 28.5–33.9 ​mg ​kg⁻¹ in CCM soil, which decreased with soil depth. The enrichment factor revealed minimal Cu enrichment, which was attributed to anthropogenic activity (fungicide and fertilizer applications). The contamination factor and geoaccumulation index values were low for the CCM soils, and moderate for the OCM soils. Both management systems pose a low potential ecological risk to soil biota activity. Bioavailable Cu extracted with CaCl₂, NH₄OAc, and DTPA was dominant in CCM soil and decreased with soil depth. The Cu concentration in cacao plants decreased in the order of shell &gt; pod husk &gt; nib, with nib-Cu being below the threshold (50.0 ​mg ​kg⁻¹) of contamination. The results from the pairwise correlation analysis show that CaCl₂-available Cu is better for evaluating the Cu content in cacao plants. This study reveals the pollution levels associated with cacao management practices, thus providing valuable insights for developing appropriate mitigation strategies.</p></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"2 3","pages":"Article 100093"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949919424000360/pdfft?md5=f63ed5d867b30193f0c7c15a06003527&pid=1-s2.0-S2949919424000360-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141097741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Using visible-near infrared spectroscopy to estimate whole-profile soil organic carbon and its fractions","authors":"Mingxuan Qi ,&nbsp;Songchao Chen ,&nbsp;Yuchen Wei ,&nbsp;Hangxin Zhou ,&nbsp;Shuai Zhang ,&nbsp;Mingming Wang ,&nbsp;Jinyang Zheng ,&nbsp;Raphael A. Viscarra Rossel ,&nbsp;Jinfeng Chang ,&nbsp;Zhou Shi ,&nbsp;Zhongkui Luo","doi":"10.1016/j.seh.2024.100100","DOIUrl":"10.1016/j.seh.2024.100100","url":null,"abstract":"<div><p>Soil organic carbon (SOC) is crucial for soil health and quality, and its sequestration has been suggested as a natural solution to climate change. Accurate and cost-efficient determination of SOC and its functional fractions is essential for effective SOC management. Visible near-infrared spectroscopy (vis-NIR) has emerged as a cost-efficient approach. However, its ability to predict whole-profile SOC content and its fractions has rarely been assessed. Here, we measured SOC and its two functional fractions, particulate (POC) and mineral-associated organic carbon (MAOC), down to a depth of 200 ​cm in seven sequential layers across 183 dryland cropping fields in northwest, southwest, and south China. Then, vis-NIR spectra of the soil samples were collected to train a machine learning model (partial least squares regression) to predict SOC, POC, MAOC, and the ratio of MAOC to SOC (MAOC/SOC – an index of carbon vulnerability). We found that the accuracy of the model indicated by the determination coefficient of validation (R_val²) is 0.39, 0.30, 0.49, and 0.48 for SOC, POC, MAOC, and MAOC/SOC, respectively. Incorporating mean annual temperature improved model performance, and R_val² was increased to 0.64, 0.31, 0.63, and 0.51 for the four carbon variables, respectively. Further incorporating SOC into the model increased R_val² to 0.82, 0.64, and 0.59, respectively. These results suggest that combining vis-NIR spectroscopy with readily-available climate data and total SOC measurements enables fast and accurate estimation of whole-profile POC and MAOC across diverse environmental conditions, facilitating reliable prediction of whole-profile SOC dynamics over large spatial extents.</p></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"2 3","pages":"Article 100100"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949919424000438/pdfft?md5=aaab9f30a0ddc715bf07d6633cc27f8d&pid=1-s2.0-S2949919424000438-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141849142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Applications of ionic liquids in soil remediation: Mechanisms, efficiency and life cycle assessment","authors":"Shams Razzak Rothee,&nbsp;Hamed Heidari,&nbsp;Marie-Odile Fortier,&nbsp;Eakalak Khan","doi":"10.1016/j.seh.2024.100097","DOIUrl":"10.1016/j.seh.2024.100097","url":null,"abstract":"<div><p>Ionic liquids (ILs) are eco-friendly substitutes for volatile organic solvents due to their unique properties, fostering widespread adoption across academic fields and industries. This review critically evaluates their application in soil remediation, comparing their performance and environmental footprint against conventional soil remediating agents. The review provides insights into the interplay of IL characteristics, optimal environmental conditions, and contaminant removal mechanisms, while also exploring strategies for modifying and regenerating ILs. Optimal conditions for contaminant removal involve acidic pH for organic compounds and metals, with high temperatures proving beneficial for metal extraction. ILs remove organic contaminants from soil via electrostatic attraction and π–π interactions. In contrast, heavy metal extraction is facilitated by forming complexes through hydrogen bonding, coordination bonding, and electrostatic interactions. The incorporation of acetone and calcium chloride reduces the viscosity while sodium azide effectively prevents microbial degradation of ILs. Using magnetic ILs, acid elution, ultrasonication, and supercritical CO₂ extraction techniques enhances IL regeneration efficiency and facilitates their reuse, thereby minimizing secondary pollution and reducing cost. Life cycle assessment of common ILs for remediation, such as 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim][BF₄]) and 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim][PF₆]) showed that producing 1 ​kg of [Bmim][BF₄] emits 6.75 ​kg CO₂, whereas manufacturing 1 ​kg of [Bmim][PF₆] releases 5.70 ​kg CO₂, indicating [Bmim][PF₆] has a lower global warming potential due to its environmentally-friendly precursors. The review advocates for continuous improvements in production processes and the development of ILs synthesized from renewable sources to mitigate environmental impacts and enhance their suitability for soil remediation.</p></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"2 3","pages":"Article 100097"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949919424000402/pdfft?md5=8da5857f0a0500e21dc1847a738a0296&pid=1-s2.0-S2949919424000402-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141405092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil health as a proxy for long-term reclamation success of metal-contaminated mine tailings using lime and biosolids","authors":"James A. Ippolito ,&nbsp;Liping Li ,&nbsp;Travis Banet ,&nbsp;Joe E. Brummer ,&nbsp;Cassidy Buchanan ,&nbsp;Aaron R. Betts ,&nbsp;Kirk Scheckel ,&nbsp;Nick Basta ,&nbsp;Sally L. Brown","doi":"10.1016/j.seh.2024.100096","DOIUrl":"10.1016/j.seh.2024.100096","url":null,"abstract":"<div><p>Mine lands contaminted with heavy metals pose environmental risks, and thus reclamation is paramount for improving soil, plant, animal, and ecosystem health. A metal-contaminated alluvial mine tailing, devoid of vegetation, received 224 ​Mg ​ha⁻¹ of both lime and biosolids in 1998, and long-term reclamation success was quantified in 2019 with respect to soils, plants, and linkages to animals. Reclamation success was quantified using the Soil Management Assessment Framework (SMAF), in conjunction with bioavailable (0.01 ​M CaCl₂ extractable) and plant-available (Mehlich-3 extractable) soil metal concentrations, X-ray absorption spectroscopy, plant metal concentrations, and plant quality characteristics. Results showed that all soil indicators were improved in successfully-reclaimed areas as compared to on-site degraded areas, including increases in soil aggregate stability, pH, plant-available P and K, soil organic C, potentially-mineralizable N, microbial biomass C and β-glucosidase activity and decreases in soil bulk density and electrical conductivity. Ofindicators, unitless soil health scores were assigned based on the SMAF, with data suggesting that bulk density, wet aggregate stability, potentially- mineralizable N, microbial biomass C, pH, and electrical conductivity should be monitored in the future. The long-term effects of lime and biosolids application have improved soil physical, biological, and overall soil health. Plant metal concentrations have decreased by an order of magnitude since early reclamation, with most plant metal concentrations being tolerable for domestic livestock consumption. From an animal health perspective, feeding grasses from this site during latter parts of a growing season may need supplemental feed to provide greater protein and energy content, and to reduce potentially-harmful Cd concentrations from food chain bioaccumulation. However, a health concern exists based on soil bioavailable Cd and Zn concentrations that exceed ecological soil screening levels. Still, plants have stabilized the soil and acidity remains neutralized, leading to long-term improvements in soil health, with overall improved ecosystem health.</p></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"2 3","pages":"Article 100096"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949919424000396/pdfft?md5=ebd9f01a665e1a57fcbf9ac817132962&pid=1-s2.0-S2949919424000396-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141401859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nano-biochar interactions with contaminants in the rhizosphere and their implications for plant-soil dynamics","authors":"Hemen Sarma ,&nbsp;Suprity Shyam ,&nbsp;Ming Zhang ,&nbsp;Giulia Guerriero","doi":"10.1016/j.seh.2024.100095","DOIUrl":"10.1016/j.seh.2024.100095","url":null,"abstract":"<div><p>The rhizosphere hosts diverse microbes crucial for plant growth. This is because plant roots secrete organic compounds, thereby enriching the rhizosphere with essential nutrients. Biochar improves soil quality, while nano-biochar shows promise in contaminant adsorption. Its production from biochar is easily achievable through top-down methodologies including hydrothermal synthesis, ball-milling, sonication, and centrifugation. The advantages of employing nano-biochar are evident in several aspects. Nano-biochar exhibits enhanced properties such as greater surface area, increased porosity, and greater reactivity compared to bulk-biochar. This enhanced surface area allows for greater adsorption capacity, enabling nano-biochar to effectively immobilize contaminants in the environment. In this review, detailed interactions and applications of nano-biochar are summarized. Nano-biochar interacts with contaminants in the rhizosphere by electrostatic interaction, cation-π interactions and redox reactions, influencing soil microbial communities and plant resilience. Nano-biochar can adsorb contaminants from the rhizosphere, such as heavy metals and organic pollutants. Thus, it helps alleviate abiotic stresses, improves nutrient availability, and supports plant growth. Furthermore, the mechanistic processes of surface oxidation, mineral dissolution, organic matter release, and mechanical fragmentation in biochar are discussed, culminating in biochar ageing and nano-biochar formation, which creates a conducive environment for microorganisms. This review examines nano-biochar-rhizosphere interactions, highlighting their effects on plant-soil dynamics and resilience. Future research should address synthesis scalability and safety concerns to unlock nano-biochar's potential in sustainable agriculture and environmental management.</p></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"2 3","pages":"Article 100095"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949919424000384/pdfft?md5=820d9152264fc81c62650b8d765baced&pid=1-s2.0-S2949919424000384-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141406986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Metal and nutrient uptake by natural wetland plants in a tropical man-made wetland of Sri Lanka","authors":"M.D.D. Rodrigo ,&nbsp;N.S. Abeysingha ,&nbsp;D.M.S. Duminda ,&nbsp;Ram L. Ray","doi":"10.1016/j.seh.2024.100080","DOIUrl":"https://doi.org/10.1016/j.seh.2024.100080","url":null,"abstract":"<div><p>Phytoremediation of contaminated soil is an environmentally-friendly approach to minimize the impacts of nutrients and heavy metals on an ecosystem. Hence, selecting appropriate plants with phytoextraction potential is paramount to remediatie contaminated soils. This study aimed to investigate the nutrient and metal contents of four natural aquatic plants, including <em>Cyperus rotundus</em>, <em>Eleocharis dulcis</em>, <em>Typha angustifolia</em>, and <em>Schoenoplectus grossus</em>. They were grown in the meadow of a small reservoir in Sri Lanka to assess their phytoextraction ability using plant and soil samples collected at 32 sampling points in the meadow. Their biological concentration (roots/soil), accumulation (shoots/soil), and translocation (shoots/roots) factors were determined to assess element mobility and phytoextraction ability. Total K, Na, Mg, Ca, Zn, Cu, Fe, Mn, As, Pb, and Cd contents of plants and soil samples were measured using an Inductivity Couple Plasma Optical Emission Spectrophotometer. ANCOVA was used as a statistical test to assess the best plant type in terms of nutrient and metal absorption. Plant shoots exhibited significantly greater values for P, Na, Mg, Zn, Cd, and Fe than their roots. Their biological concentration, accumulation and translocation factors were not different among the four plant species. However, these values were &gt;1 for all the species, indicating their potential to be used as hyperaccumulators. <em>T</em>. <em>angustifolia</em>, with its high potential for nutrient and metal accumulation and the highest aesthetic appeal, was selected as the best overall wetland species for phytoremediation purposes.</p></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"2 2","pages":"Article 100080"},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949919424000232/pdfft?md5=5b70368772915603017550eabcb8824b&pid=1-s2.0-S2949919424000232-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140607056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Associations between wastewater gut microbiome and community obesity rates: Potential microbial biomarkers for surveillance","authors":"Jiangping Wu ,&nbsp;Yan Chen ,&nbsp;Jiawei Zhao ,&nbsp;Tanjila Alam Prosun ,&nbsp;Jake William O'Brien ,&nbsp;Lachlan Coin ,&nbsp;Faisal I. Hai ,&nbsp;Martina Sanderson-Smith ,&nbsp;Peng Bi ,&nbsp;Guangming Jiang","doi":"10.1016/j.seh.2024.100081","DOIUrl":"https://doi.org/10.1016/j.seh.2024.100081","url":null,"abstract":"<div><p>Gut microbes are crucial for human health, which are usually accumulated in urban wastewater systems. Seven wastewater treatment plants in Australia with distinct population obesity rates between 18% and 33% were selected for wastewater sampling and analysis. Human gut microbiome were detected using metagenomic sequencing to investigate their associations with the community obesity rate. To unravel this complex relationship, a range of algorithm models, including linear discriminant analysis effect size (LEfSe), similarity percentage analysis (SIMPER), statistical analysis of metagenomic profiles (STAMP), linear models for microarray and RNA-Seq data analysis (LIMMA), Relief, ratio approach for identifying differential abundance (RAIDA), least absolute shrinkage and selection operator (LASSO), support vector machine (SVM), Boruta, DESeq2 and analysis of compositions of microbiomes with bias correction (ANCOM-BC), were used to identify potential bacterial biomarkers for obesity in the wastewater microbiome. Among these algorithm models, LEfSe, LIMMA, SIMPER and SVM are effective in identifying multiple microbial biomarkers. Specific human gut microbes, including <em>Ruminococcus_E, Agathobacter, Fusicatenibacter, Anaerobutyricum, Blautia_A and Neisseria</em>, were identified as potential consensus microbial biomarkers for obesity in the population. A high obesity rate is mainly characterized by a high abundance of pathogenic bacteria and microorganisms associated with xenobiotic biodegradation and metabolism, endocrine and metabolic diseases, and transcription pathways. This study underscores the innovative potential of leveraging human gut microbes in wastewater as biomarkers for monitoring obesity levels across communities, offering a novel, cost-effective, and indirect approach to public health surveillance.</p></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"2 2","pages":"Article 100081"},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949919424000244/pdfft?md5=0e628a65e340c8585bd5a5b494981fa0&pid=1-s2.0-S2949919424000244-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140622530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}