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Experimental effects of multiple agricultural stressors on diversity and size structure of subtropical stream macroinvertebrates 多种农业胁迫对亚热带河流大型无脊椎动物多样性和体型结构的实验影响
Environmental Advances Pub Date : 2025-03-28 DOI: 10.1016/j.envadv.2025.100630
Gabrielle S.S. Almeida , Victor S. Saito , Milena Sartori , Hugo H.L. Saulino , Lyandra O. da Penha , Paulo S.C.T. Miranda , Mariana Morilla , Maria Gabrielle Rodrigues-Maciel , Giovanna Collyer , Marcelo S. Moretti , Fabiana Schneck , Jeremy J. Piggott , Iris Madge Pimentel , Christoph D. Matthaei , Silvio F.B. Ferraz , Ricardo H. Taniwaki
{"title":"Experimental effects of multiple agricultural stressors on diversity and size structure of subtropical stream macroinvertebrates","authors":"Gabrielle S.S. Almeida ,&nbsp;Victor S. Saito ,&nbsp;Milena Sartori ,&nbsp;Hugo H.L. Saulino ,&nbsp;Lyandra O. da Penha ,&nbsp;Paulo S.C.T. Miranda ,&nbsp;Mariana Morilla ,&nbsp;Maria Gabrielle Rodrigues-Maciel ,&nbsp;Giovanna Collyer ,&nbsp;Marcelo S. Moretti ,&nbsp;Fabiana Schneck ,&nbsp;Jeremy J. Piggott ,&nbsp;Iris Madge Pimentel ,&nbsp;Christoph D. Matthaei ,&nbsp;Silvio F.B. Ferraz ,&nbsp;Ricardo H. Taniwaki","doi":"10.1016/j.envadv.2025.100630","DOIUrl":"10.1016/j.envadv.2025.100630","url":null,"abstract":"<div><div>Agricultural activities cause changes in land use and affect the ecological integrity of streams and rivers, with some of the main impacts being related to increased nutrient and fine sediment inputs. Agricultural water diversion and prolonged droughts due to climate change can also cause alterations in these ecosystems, such as modifications in flow dynamics. However, the interactions between stressors related to agricultural production and climate change are still poorly understood. Therefore, the singular and combined effects of three agricultural and climate change stressors were tested: i. nitrate enrichment (ambient/80 %/140 %/220 %), ii. fine sediment deposition (ambient and 80 % increase), and iii.- flow reduction (ambient and 66 % reduction) on the benthic macroinvertebrate community of a subtropical stream. For this purpose, we used a streamside mesocosm setup consisting of 64 experimental mesocosms. These were continuously supplied with stream water, allowing for comparable physicochemical and climatic characteristics to the adjacent stream. We investigated the individual and combined effects of the stressors on invertebrate community richness, abundance, Shannon diversity, equitability (species dominance), community composition and community size structure (size spectra). Our findings revealed that the macroinvertebrate community was affected by all three stressors, with each one influencing different structural aspects of the community. Nitrate addition had a positive effect on community evenness up to moderate enrichment levels. Sedimentation primarily decreased richness and the abundance of larger individuals, notably impacting chironomid communities that are closely tied to sediment characteristics. Flow reduction altered diversity and equitability, benefiting species such as ostracods that thrive in slow-flow environments. When combined, sedimentation and reduced flow decreased the occurrence of several rarer taxa. These findings suggest that agricultural intensification and climate change may negatively impact macroinvertebrate communities in subtropical streams through single and combined stressor mechanisms.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"20 ","pages":"Article 100630"},"PeriodicalIF":0.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746643","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}
引用次数: 0
In situ degradation of three contrasting plastic mulch films under maize cultivation in tropical conditions 三种对比地膜在热带条件下玉米栽培的原位降解
Environmental Advances Pub Date : 2025-03-19 DOI: 10.1016/j.envadv.2025.100628
Gayathree I. Senevirathne , T.D. Meththa Gimhani , Michaela K. Reay , Chamila Perera , Mojith Ariyaratna , Anurudda K. Karunarathna , David R. Chadwick , Davey L. Jones , Chimnaz Emrah , Charlotte E.M. Lloyd , J.A. Surani Chathurika
{"title":"In situ degradation of three contrasting plastic mulch films under maize cultivation in tropical conditions","authors":"Gayathree I. Senevirathne ,&nbsp;T.D. Meththa Gimhani ,&nbsp;Michaela K. Reay ,&nbsp;Chamila Perera ,&nbsp;Mojith Ariyaratna ,&nbsp;Anurudda K. Karunarathna ,&nbsp;David R. Chadwick ,&nbsp;Davey L. Jones ,&nbsp;Chimnaz Emrah ,&nbsp;Charlotte E.M. Lloyd ,&nbsp;J.A. Surani Chathurika","doi":"10.1016/j.envadv.2025.100628","DOIUrl":"10.1016/j.envadv.2025.100628","url":null,"abstract":"<div><div>The widespread use and release of plastics, including conventional and biodegradable mulch films, has become a major environmental concern due to their impact on soil quality and ecosystem functioning. Herein, we examined degradation patterns of three plastic mulch films (i) low-density polyethylene (LDPE) mulch (PEM), (ii) reflective LDPE mulch (RPEM), and (iii) biodegradable PLA-PBAT mulch (BDM), over two maize growing seasons in Sri Lanka. Mulch films were sampled monthly, with changes in mass, chemical composition, and physical integrity assessed using FTIR-ATR, TGA, GC, and GC-MS. FTIR spectra confirmed progressive compositional changes in all films with BDM showing significant peak compositional changes. Visual observations of physical breakdown showed that &gt; 30% of soil surface coverage provided by BDM was lost while LDPE films showed minimal signs of surface breakage. BDM lost 50% of its mass over first growing season while RPEM and PEM films demonstrated only 1% and 6% mass loss, respectively. In conclusion, the study provides evidence of the rapid degradation and compositional changes of BDM mulches compared to LDPE mulches, likely due to prevailing tropical climate. Future research should focus on improving physical integrity of BDMs and analysing the effects of plastic additives and leachates on soil and microbes.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"20 ","pages":"Article 100628"},"PeriodicalIF":0.0,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705878","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}
引用次数: 0
Uptake of per- and polyfluoroalkyl substances (PFAS) into lettuce (Lactuca sativa), tall fescue (Schedonorus arundinaceus) and tomato (Solanum lycopersicum): A greenhouse experiment evaluating bioconcentration factors and testing the effect of intercropping 莴苣(Lactuca sativa)、高羊茅(Schedonorus arundinaceus)和番茄(Solanum lycopersicum)对全氟烷基和多氟烷基物质(PFAS)的吸收:一项评估生物浓缩因子和测试间作效果的温室试验
Environmental Advances Pub Date : 2025-03-18 DOI: 10.1016/j.envadv.2025.100629
Alexandra E. Scearce , Jean D. MacRae , Caleb P. Goossen , Yong-Jiang Zhang , Kylie P. Holt , Rachel E. Schattman
{"title":"Uptake of per- and polyfluoroalkyl substances (PFAS) into lettuce (Lactuca sativa), tall fescue (Schedonorus arundinaceus) and tomato (Solanum lycopersicum): A greenhouse experiment evaluating bioconcentration factors and testing the effect of intercropping","authors":"Alexandra E. Scearce ,&nbsp;Jean D. MacRae ,&nbsp;Caleb P. Goossen ,&nbsp;Yong-Jiang Zhang ,&nbsp;Kylie P. Holt ,&nbsp;Rachel E. Schattman","doi":"10.1016/j.envadv.2025.100629","DOIUrl":"10.1016/j.envadv.2025.100629","url":null,"abstract":"<div><div>The contamination of agricultural soils with per- and polyfluoroalkyl substances (PFAS), resulting from the application of biosolids and contaminated irrigation water, threatens both human health and the long-term viability of farming operations. While this is a known concern, less is known about factors associated with the transfer of PFAS from soils to crops and how transfer differs across crop compartments and species. The objectives of the present study were to 1) assess bioconcentration factors (BCFs) of lettuce (<em>Lactuca sativa</em> L.), tall fescue (<em>Schedonorous arundinaceus</em> [Screb.] Dumort), and tomato (<em>Solanum lycopersicum</em> L.) grown in a greenhouse using spiked potting mix, and 2) test the efficacy of intercropping as a phytomanagement strategy to influence facilitative and competitive interactions capable of altering PFAS uptake into plants.</div><div>We found distinct BCFs across species, compartments and compounds. Perfluorobutanoate (PFBA) edible portion BCFs were the highest in tomato fruit, being 3.5-fold higher than in lettuce leaves. For perfluorobutanesulfonate (PFBS), and perfluorooctanoate (PFOA) edible portion BCFs were highest in tall fescue, followed by lettuce, and lowest in tomatoes. BCFs for perfluorooctanesulfonate (PFOS) were not significantly different across species.</div><div>Across all crop compartments, aboveground BCFs significantly exceeded those of root BCFs (p &lt; 0.05). Intercropped plant pairings only influenced PFBA uptake, reducing uptake of this compound into tomato fruit when paired with lettuce. While other intercropped pairings did alter uptake of PFAS into one or both species compared to monocropped pairings, the directionality of the trend showed that uptake generally increased in intercropped pairings, making this an impractical option for phytomanagement of contaminated agroecosystems.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"20 ","pages":"Article 100629"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705877","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}
引用次数: 0
Catchment-scale assessment of groundwater discharge using ecological, thermal, and hydrochemical surveillance data in the Halton Region, Ontario 利用生态、热和水化学监测数据对安大略省霍尔顿地区的地下水排放进行流域尺度评估
Environmental Advances Pub Date : 2025-03-08 DOI: 10.1016/j.envadv.2025.100627
Nathan Beckner-Stetson , Virginie Gaye , Mason Marchildon , Andrea D. Dunn , Behnam Doulatyari , Kim Funk , Steve Holysh , Kim Barrett , Bas Vriens
{"title":"Catchment-scale assessment of groundwater discharge using ecological, thermal, and hydrochemical surveillance data in the Halton Region, Ontario","authors":"Nathan Beckner-Stetson ,&nbsp;Virginie Gaye ,&nbsp;Mason Marchildon ,&nbsp;Andrea D. Dunn ,&nbsp;Behnam Doulatyari ,&nbsp;Kim Funk ,&nbsp;Steve Holysh ,&nbsp;Kim Barrett ,&nbsp;Bas Vriens","doi":"10.1016/j.envadv.2025.100627","DOIUrl":"10.1016/j.envadv.2025.100627","url":null,"abstract":"<div><div>Groundwater-surface water exchange is spatiotemporally variable and costly to assess at high-resolution across large areas. This study explores the application of readily available surface water monitoring data to identify potential groundwater discharge locations in 15 catchments within Conservation Halton's jurisdiction within the Halton Region, Ontario, Canada. We first compared two interpolated groundwater discharge models and subsequently contrasted these against stream ecology data (macrophyte and fish taxa) and surface- and groundwater quality measurements that were aggregated to derive temperature and hydrochemical (alkalinity, chloride) gradients across the hyporheic zone. Both groundwater models agreed in their prediction of discharge locations for only 52 % of monitoring sites, corroborating the need for further reconnaissance of potential discharge areas. Fish temperature preferences and ecological temperature classifications aligned reasonably with the groundwater discharge models (&lt;55 % of sites) and air-to-stream temperature differences agreed better with groundwater discharge predicted by modeling (<em>p</em> &lt; 0.04, R<sup>2</sup>&gt;0.40) than stream-to-groundwater gradients (<em>p</em> &lt; 0.1, R<sup>2</sup>&lt;0.25). Instead, hydrochemical signatures of both chloride and alkalinity in the streams were more ambiguous and displayed poor correlation with groundwater discharge maps and other monitoring parameters. Finally, we amalgamated the various investigated parameters into a classification scheme to determine the likelihood of groundwater discharge at the monitoring locations . This work exemplifies how combining commonly available monitoring information may be used to provide additional insight into groundwater discharge dynamics and stream health across larger and diverse catchment types where lack of <em>in-situ</em> monitoring or unverified numerical models complicate a clear understanding of groundwater discharge patterns.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"20 ","pages":"Article 100627"},"PeriodicalIF":0.0,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609486","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}
引用次数: 0
Elevated per- and polyfluoroalkyl substances (PFASs) in tap water and serum in a community near an abandoned paper mill 废弃造纸厂附近社区自来水和血清中的全氟和多氟烷基物质(PFASs)升高
Environmental Advances Pub Date : 2025-03-05 DOI: 10.1016/j.envadv.2025.100623
Rachel A. Bauer , Ankita Bhattacharya , Ying Guo , Sharon Zhang , Heather M. Stapleton , John L. Adgate , Sarah Choyke , Christopher P. Higgins , Courtney C. Carignan
{"title":"Elevated per- and polyfluoroalkyl substances (PFASs) in tap water and serum in a community near an abandoned paper mill","authors":"Rachel A. Bauer ,&nbsp;Ankita Bhattacharya ,&nbsp;Ying Guo ,&nbsp;Sharon Zhang ,&nbsp;Heather M. Stapleton ,&nbsp;John L. Adgate ,&nbsp;Sarah Choyke ,&nbsp;Christopher P. Higgins ,&nbsp;Courtney C. Carignan","doi":"10.1016/j.envadv.2025.100623","DOIUrl":"10.1016/j.envadv.2025.100623","url":null,"abstract":"<div><div>In 2018, elevated concentrations of per- and polyfluoroalkyl substances (PFASs) (1600 ng/L) were discovered in municipal wells, and the groundwater contamination was linked to an abandoned paper mill landfill in southwestern Michigan. From 2020-2021, we conducted a detailed exposure assessment in this community to provide insights about the mixture of PFASs from a paper mill source in drinking water and their persistence in human serum following long-term exposure. Water and serum were analyzed for &gt;30 PFASs using LC-MS/MS. Approximately half of the study participants had private wells with lower PFAS concentrations (&lt;220 ng/L) compared to municipal water (1600 ng/L), therefore, they were assigned as low (private well) and high (municipal well) exposure groups. The three predominant PFASs detected in the municipal well, perfluorooctanoic acid (PFOA) (670 ng/L), perfluorooctane sulfonic acid (PFOS) (740 ng/L), and perfluorohexane sulfonic acid (PFHxS) (19 ng/L), were also the most abundant in serum. Participants with high drinking water exposure had serum PFOA, PFOS and PFHxS concentrations that were 15-fold, 5-fold, and 2-fold higher, respectively, compared to those in the low group. For each additional year participants reported drinking the municipal water, we observed a 6 %, 4 %, and 5 % increase in serum PFOA, PFOS and PFHxS, respectively. Overall, these results highlight the role of drinking water as a predominant source of PFAS exposure and the risk that abandoned landfills can pose to drinking water in nearby communities. This study also establishes a baseline for long-term toxicological impacts and evaluation of intervention effectiveness.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"20 ","pages":"Article 100623"},"PeriodicalIF":0.0,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143591770","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}
引用次数: 0
The characteristics of microplastics and the associated metals on the surfaces of microplastics in green mussels (Perna viridis) collected from different water depths in the Bekasi Estuary, West Java, Indonesia 印度尼西亚西爪哇别加西河口不同水深绿贻贝(Perna viridis)微塑料特征及微塑料表面相关金属
Environmental Advances Pub Date : 2025-03-04 DOI: 10.1016/j.envadv.2025.100625
Agoes Soegianto , Asriningsih Suryandari , Pepy Noer Afidah , Anta Sari , Nanik Retno Buwono , Retno Hartati , Carolyn Melissa Payus
{"title":"The characteristics of microplastics and the associated metals on the surfaces of microplastics in green mussels (Perna viridis) collected from different water depths in the Bekasi Estuary, West Java, Indonesia","authors":"Agoes Soegianto ,&nbsp;Asriningsih Suryandari ,&nbsp;Pepy Noer Afidah ,&nbsp;Anta Sari ,&nbsp;Nanik Retno Buwono ,&nbsp;Retno Hartati ,&nbsp;Carolyn Melissa Payus","doi":"10.1016/j.envadv.2025.100625","DOIUrl":"10.1016/j.envadv.2025.100625","url":null,"abstract":"<div><div>This study intended to evaluate the physicochemical properties of microplastics (MPs) and the metals adhered to their surfaces in green mussels, <em>Perna viridis</em>, living at the surface and at a depth of 6 meters in the Bekasi estuary, West Java, Indonesia. The study's findings revealed that MPs in green mussel and seawater, both at the surface and at a depth of 6 m, had the following characteristics: fragment type, black color, and a size of less than 100 µm. The abundance of MPs in surface seawater (22.7 particles/l) was higher than at 6 m depth (15.5 particles/l). There were no statistically significant differences in MP abundance in green mussels' soft tissue at the surface (13.4 particles/individual) and at 6 m depth (13.6 particles/individual). The statistical analysis confirmed the absence of a significant correlation between the abundances of MPs and the length and weight of the green mussel shell. Eight MPs polymers were detected in the seawater and tissues of green mussels obtained from the Bekasi estuary, West Java: polyvinyl chloride, polycarbonate, polystyrene, cellulose acetate, polymethyl methacrylate; acrylic, acrylonitrile-butadiene-styrene, ethene-vinylacetate, and nylon or polyamide. The chemical examination of green mussel tissue samples identifies four separate groups of additives: plasticizers, processing aids, antioxidants, and UV stabilizers. Aluminum, chromium, nickel, copper, zinc, arsenic, cadmium, tin, mercury, lead, oxygen, chlorine, silicon, and potassium were among the metals and elements identified on surface of MP particles in green mussels.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"20 ","pages":"Article 100625"},"PeriodicalIF":0.0,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580779","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}
引用次数: 0
Abiotic reductive dehalogenation of pharmaceuticals with naturally occurring redox mediators 用天然氧化还原介质进行药物的非生物还原脱卤
Environmental Advances Pub Date : 2025-02-27 DOI: 10.1016/j.envadv.2025.100622
Kerstin Gerundt , Jörg Lewandowski , Anke Putschew
{"title":"Abiotic reductive dehalogenation of pharmaceuticals with naturally occurring redox mediators","authors":"Kerstin Gerundt ,&nbsp;Jörg Lewandowski ,&nbsp;Anke Putschew","doi":"10.1016/j.envadv.2025.100622","DOIUrl":"10.1016/j.envadv.2025.100622","url":null,"abstract":"<div><div>This preliminary study investigated whether a reductive dehalogenation of brominated, chlorinated and fluorinated pharmaceuticals is possible using redox mediators as found for iodinated x-ray contrast media. Iopamidol, iopromide, ambroxol, diclofenac, sitagliptin, hydrochlorothiazide and sertraline were treated with the redox mediator vitamin B<sub>12</sub>, juglone, menadione and an iron- or a manganese porphyrin using the reducing agent titanium(III) citrate always in excess. Additionally, dihalogenated benzoic acids were treated as model compounds. Although the tests were done using different molar ratios of redox mediator to compound, as mixtures were applied, the results allow to conclude some main dependencies. The iodinated compounds were completely deiodinated within minutes to hours whereas (partial/complete) debromination needed days, depending on the mediator to compound ratio, both with a catalyzing effect by vitamin B<sub>12</sub> and an iron porphyrin. A concentration decrease of the chlorinated and fluorinated compounds (up to 50 %) was only observed with a high ratio of redox mediator to compound and no distinct dechlorination or defluorination was observed. However, other reductive transformations were found, partly for the first time for abiotic reductive transformation. Since only redox mediators with the lowest redox potential were able to catalyze the dehalogenation of compounds with lower carbon-halogen bond energy, the preliminary tests suggest that a dehalogenation in nature can only be expected for iodinated and brominated compounds under oxygen-free conditions with long residence time.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"19 ","pages":"Article 100622"},"PeriodicalIF":0.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551357","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}
引用次数: 0
Assessment of heavy metals content and diversity of mercury-tolerant bacteria in heavy metal-polluted environmental samples and mercury bioremediation ability of isolated strains 重金属污染环境样品中重金属含量、耐汞细菌多样性及分离菌株的汞生物修复能力评价
Environmental Advances Pub Date : 2025-02-27 DOI: 10.1016/j.envadv.2025.100624
Vinay Yadav , Anjali Manjhi , Nithya Vadakedath
{"title":"Assessment of heavy metals content and diversity of mercury-tolerant bacteria in heavy metal-polluted environmental samples and mercury bioremediation ability of isolated strains","authors":"Vinay Yadav ,&nbsp;Anjali Manjhi ,&nbsp;Nithya Vadakedath","doi":"10.1016/j.envadv.2025.100624","DOIUrl":"10.1016/j.envadv.2025.100624","url":null,"abstract":"<div><div>Mercury contamination disrupts ecosystems by causing toxicity and bioaccumulation in higher trophic levels. This study inspected the heavy metals content and the culturable diversity of mercury-resistant and detoxifying bacteria in samples from dumping site, thermal power plant and sewage treatment plant situated in/near Chandigarh, India. Most of the analyzed heavy metals were found above the permissible limit in these sites. Among 87 isolated bacteria, 45 could resist &gt;200 µM ionic mercury (HgCl<sub>2</sub>). Markedly, 10 and 4 isolates harbored the key genes required for mercury detoxification, <em>merA</em> and <em>merB</em> gene, respectively. The <em>merA</em> gene-containing strain's phylogeny indicated the resistant strains belong to <em>Alphaproteobacteria, Betaproteobacteria</em><strong>,</strong> <em>Bacilli</em> and <em>Gammaproteobacteria</em>. Nine isolates could volatilize HgCl<sub>2</sub> efficiently, while two could volatilize organic mercury (CH<sub>3</sub>HgCl). The isolates <em>Niallia circulans</em> DCL_26, <em>Serratia quinivorans</em> DCS_A1, and <em>Pseudomonas hibiscicola</em> R_24 were found to resist and volatilize up to ≥300 μM HgCl<sub>2</sub>. Appreciably, <em>S. quinivorans</em> DCS_A1 could resist and remediate up to 6 μM of CH<sub>3</sub>HgCl. A 5-fold reduction in ionic mercury concentration was observed within 72 h of treatment for all three tested strains. Phytotoxicity assay performed using <em>Arabidopsis thaliana</em> and <em>Brassica juncea</em> seeds confirmed the strains DCL_26, DCS_A1, and R_24 have the ability to remove mercury from culture media as well as industrial effluent and reduce mercury toxicity significantly. The study provides a green technology based on microbial systems to remediate mercury-contaminated wastewater for its use in crop irrigation. However, further studies are required for the sustainable and safer application of these novel isolates to remediate mercury efficiently.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"19 ","pages":"Article 100624"},"PeriodicalIF":0.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551358","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}
引用次数: 0
Multivariate hydrochemical assessment of groundwater quality for irrigation purposes and identifying soil interaction effects and dynamics of NDVI and urban development in alluvial region 冲积区灌溉用地下水水质多元水化学评价及NDVI与城市发展的土壤相互作用效应与动态
Environmental Advances Pub Date : 2025-02-17 DOI: 10.1016/j.envadv.2025.100621
Sher Muhammad Ghoto , Dr. Habibullah Abbasi , Sheeraz Ahmed Memon , Khan Muhammad Brohi , Rabia Chhachhar , Asad Ali Ghanghlo , Imran Aziz Tunio
{"title":"Multivariate hydrochemical assessment of groundwater quality for irrigation purposes and identifying soil interaction effects and dynamics of NDVI and urban development in alluvial region","authors":"Sher Muhammad Ghoto ,&nbsp;Dr. Habibullah Abbasi ,&nbsp;Sheeraz Ahmed Memon ,&nbsp;Khan Muhammad Brohi ,&nbsp;Rabia Chhachhar ,&nbsp;Asad Ali Ghanghlo ,&nbsp;Imran Aziz Tunio","doi":"10.1016/j.envadv.2025.100621","DOIUrl":"10.1016/j.envadv.2025.100621","url":null,"abstract":"<div><div>Groundwater quality assessment and evaluation for irrigation is critical for decision-making and planning. This study introduces an integrated novel approach to how different soil types interact with groundwater and the dynamics of NDVI and urban development in varied climatic conditions. It assesses the groundwater quality for irrigation purposes. It performs multivariate statistical analysis and geospatial methods to evaluate irrigation groundwater water quality. The parameters and variables were analyzed using correlation matrix analysis (CA) and principal component analysis (PCA). The normalized vegetation index (NDVI) and three-band urban index (3BUI) were calculated using the Landsat image to observe the spatial variation in vegetation cover and urban development, influencing groundwater quality within the region. Furthermore, a detailed analysis of each index for each sample showed insight into the data for irrigation water quality. According to the classified results, 43.75 % of samples fall in a good irrigation water quality index (IWQI) range with 35 samples. 28.75 % of samples fall in the suitable range with 23 samples. 21.25 % of the samples are very good, with 17 samples, and 3.75 % are unsuitable, with 3 out of 80. Only 2 % of the samples are in the excellent category, with 2 out of 80 samples. Moreover, the area experiences variations in groundwater quality due to different source interactions, such as geomorphological conditions and variations in soil, NDVI, urban, and climatic conditions.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"19 ","pages":"Article 100621"},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480673","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}
引用次数: 0
Trend in pharmaceutical effluent discharge and management using microorganisms 微生物在制药废水排放和管理中的应用趋势
Environmental Advances Pub Date : 2025-02-08 DOI: 10.1016/j.envadv.2025.100617
Lawrence Adelani Adetunde , Osarenkhoe Omorefosa Osemwegie , Bolanle Adenike Akinsanola , Adebowale Toba Odeyemi , Vincent Ninkuu
{"title":"Trend in pharmaceutical effluent discharge and management using microorganisms","authors":"Lawrence Adelani Adetunde ,&nbsp;Osarenkhoe Omorefosa Osemwegie ,&nbsp;Bolanle Adenike Akinsanola ,&nbsp;Adebowale Toba Odeyemi ,&nbsp;Vincent Ninkuu","doi":"10.1016/j.envadv.2025.100617","DOIUrl":"10.1016/j.envadv.2025.100617","url":null,"abstract":"<div><div>Recent rising population has been matched by a corresponding increase in pharmaceutical companies and products worldwide. Pharmaceutical effluents are causing unprecedented environmental pollution, risking ecosystem health and public safety. The discharge of treated or untreated wastewater is drawing attention from scientific and political communities due to its implications for climate change. Hence, a global effort is needed to enhance understanding of the impacts of pharmaceutical wastewater on soil, animals, human health, food security, biodiversity, and ecosystems. This has inspired studies on eco-friendly biotechnological and bioremediation strategies using microorganisms to address pollution challenges. Therefore, this review aims to explore the trend, consequences, and microbial roles in pharmaceutical wastewater management, discharge characteristics, and utilization.</div></div>","PeriodicalId":34473,"journal":{"name":"Environmental Advances","volume":"19 ","pages":"Article 100617"},"PeriodicalIF":0.0,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403207","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}
引用次数: 0
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