Journal of hazardous materials advances最新文献

{"title":"Green extraction of biomass from waste goat bones for applications in catalysis, wastewater treatment, and water disinfection","authors":"Ahmed Hamad Alanazi ,&nbsp;Wael AA Arafa ,&nbsp;Shaima MN Moustafa ,&nbsp;Ibrahim Hotan Alsohaimi ,&nbsp;Tarek Ahmed Seaf Elnasr ,&nbsp;Riyadh F. Halawani ,&nbsp;Amnah Salem Al Zbedy ,&nbsp;Amr Mohammad Nassar","doi":"10.1016/j.hazadv.2025.100645","DOIUrl":"10.1016/j.hazadv.2025.100645","url":null,"abstract":"<div><div>The goal of this work is to recycle waste goat bones in an environmentally acceptable way and then recover them for vital applications as an adsorbent of hazardous pollutants from water, an antimicrobial agent, and a catalyst. Recycled goat bone crystals (RGB) were characterized via thermal gravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscope (SEM), transmittance electron microscope (TEM), and Fourier transform infrared spectroscopy (FTIR). TGA data revealed that the goat bones sample consists of approximately 29.30 % organic residue and 70.70 % hydroxyapatite. The crystalline size was 3.65 nm and the particle size was 5–10 nm as resulted from XRD analysis and TEM images, respectively. The FT-IR spectrum showed the presence of functional groups of hydroxyapatite and organic molecules. RGB is used as a heterogenous catalyst in multicomponent reactions for synthesizing several tetrahydrobenzo [<em>b</em>]pyrans by employing a one-pot, three-component reaction comprising aromatic aldehydes, cyclohexane-1,3‑dione, and malononitrile in water at room temperature with an excellent yield ≈ 90–98 %. Compared to earlier studies on the synthesis of 4<em>H</em>-pyrans, our technique offers a number of benefits, such as increased yields, eco-friendly conditions quicker reactions, and recyclable. The antimicrobial capacity of RGB has been evaluated and compared with that of organic residue and hydroxyapatite extracted from RGB using colony counting technique. The petri dish containing hydroxyapatite showed minimal growth of microbes with inhibitions of 82.1 % and 98.7 % for both bacteria and fungi growth, respectively. Additionally, RGB has been studied as an adsorbent for wastewater purification and showed high removal efficiency of crystal violet dye ≈ 99.15 % after 30 min under the optimum conditions. As a result of this work, the RGB can be used on a large scale as a cheap and a promising commercial catalyst, biosorbent, and antimicrobial agent.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100645"},"PeriodicalIF":5.4,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436629","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":"Metagenomic insights into correlation of microbiota and antibiotic resistance genes in the worker-pig-soil interface: A One Health surveillance on Chongming Island, China","authors":"Jing Qian ,&nbsp;Zheyuan Wu ,&nbsp;Lingchao Ma ,&nbsp;Yongzhang Zhu ,&nbsp;Yan Zhang ,&nbsp;Min Li ,&nbsp;Xiaokui Guo ,&nbsp;Chang Liu","doi":"10.1016/j.hazadv.2025.100648","DOIUrl":"10.1016/j.hazadv.2025.100648","url":null,"abstract":"<div><div>Surveillance of antimicrobial resistance (AMR) is necessary and urgent. This study emphasizes the critical role of One Health surveillance in monitoring AMR, integrating metagenomics to assess microbiota and antibiotic resistance genes (ARGs) across human, pig, and soil ecosystems in swine farms. The human and pig gut microbiota are predominantly composed of the phyla <em>Firmicutes, Bacteroidota, Proteobacteria</em>, and <em>Actinobacteria</em>, whereas the soil microbiota exhibits a distinct profile, with <em>Proteobacteria, Acidobacteria, Actinobacteria</em>, and <em>Planctomycetes</em> being the most prevalent. A diverse array of ARGs is identified, including multidrug resistance, with Acidobacteria and Proteobacteria as potential ARG hosts. The study reveals shared ARGs and mobile genetic elements (MGEs) among human, pig, and soil, indicating microbial interdependence and potential for horizontal gene transfer. A positive correlation between biocide and metal resistance genes (BMRGs) and MGEs suggests the role of disinfectants and metals in ARG selection and dissemination. Network analysis of BMRGs, MGEs, and ARGs finds positive associations between copper resistance genes (<em>corR</em>), zinc and lead resistance genes (<em>zraR/hydH, zraS/hydG</em>), and ARGs such as <em>macB, tetA(58), mlaF</em>, and <em>mtrA</em>. This correlation is also evident with insertion sequences like ISAcba1 and ISArsp9. The findings reveal the potential for horizontal gene transfer and the influence of disinfectants and metals on ARG selection and dissemination, advancing the application of metagenomic monitoring within the One Health framework. This research underscores the need for integrated strategies to mitigate antibiotic resistance and informs sustainable agricultural practices.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100648"},"PeriodicalIF":5.4,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436631","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":"An innovative approach to remediation of uranium-contaminated fine soil using magnetic separation and chemical washing","authors":"Ilgook Kim ,&nbsp;In-Ho Yoon ,&nbsp;June-Hyun Kim ,&nbsp;Seeun Chang ,&nbsp;Hyun-Kyu Lee","doi":"10.1016/j.hazadv.2025.100641","DOIUrl":"10.1016/j.hazadv.2025.100641","url":null,"abstract":"<div><div>Uranium (U) contamination in soil, derived from industrial activities and nuclear facility operations, poses significant environmental and health risks. This study explores an innovative remediation approach combining physical separation and chemical washing to treat U-contaminated fine soil. Fine soil samples (&lt; 0.2 mm) were subjected to a series of experiments focusing on the selective separation of silt and clay particles using PEI-coated γ-Fe₂O₃ magnetic nanoparticles followed by a two-step acid washing treatment. The magnetic separation effectively targeted negatively charged clay particles, utilizing strong electrostatic attraction to form flocs, which were then easily separated under a magnetic field. Two-step chemical washings were performed at room temperature to decontaminate the fine soil, employing H₂SO₄, HNO₃, Na₂CO₃, and NaHCO₃. The highest U removal efficiency was achieved using 1.0 M H₂SO₄, reducing the residual radioactivity to below the clearance level recommended by IAEA (&lt; 1.0 Bq/g). This combined method proved highly effective, showing over 99% U removal efficiency for fine soils larger than 0.5 mm without significant soil loss. The research highlights the potential for integrating advanced material sciences into environmental remediation practices to mitigate the risks associated with U-contaminated soils.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100641"},"PeriodicalIF":5.4,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436758","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":"Heavy metal accumulation and biomarker responses of Nile tilapia from a coal void reservoir cage aquaculture system","authors":"Sanjay Kumar Gupta ,&nbsp;Rajan Gupta ,&nbsp;Shivangi Nage ,&nbsp;Neeraj Kumar ,&nbsp;Rima Kumari ,&nbsp;Akruti Gupta ,&nbsp;Md Javed Foysal ,&nbsp;Biplab Sarkar ,&nbsp;K.K. Krishnani","doi":"10.1016/j.hazadv.2025.100631","DOIUrl":"10.1016/j.hazadv.2025.100631","url":null,"abstract":"<div><div>Coal mining is one of the most significant mining operations in India. Post-mining activities, often result in abandoned sites known as coal voids. Water accumulated in coal void reservoirs undergoes substantial changes in physico-chemical and biological characteristics due to heavy metal contamination. Tilapia (<em>Oreochromis niloticus</em>) with an average weight of 254.50 ± 17.65<em>g</em> was randomly collected from established cage cultures in two reservoirs: Ramgarh coal void reservoir (test) and Getalsud reservoir (control) in Jharkhand, India. The objectives of the study were to delineate the effects of heavy metal exposure on hemato-immunological, biochemical, molecular, and histopathological responses in fish. The heavy metal assessment of the tilapia tissues revealed that the test group had significantly higher levels of Cr, Ni, As, Se, Pb, Zn, and Fe than the control group collected from Getalsud reservoir. Similarly, higher level of Cr, As, Pb and Fe was observed in the water sample of the test group. A significant increase in serum indices, enzymes related to oxidative stress and metabolic enzymes was observed in fish from the metal-contaminated coal void reservoir. An increasing trend in pro-inflammatory cytokine genes (TNF-α, IL-1β, and HSP-70) and downregulation of the anti-inflammatory cytokine gene (TGF-β) were observed in fish collected from coal void reservoirs. Histopathological examination of the liver and gill tissues demonstrated several deleterious alterations in coal void raised fish. The study concluded that metal contamination in coal voids profoundly affects key biomarkers of cellular, metabolic, and molecular responses in fish, indicating serious ecological and aquacultural implications.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100631"},"PeriodicalIF":5.4,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420790","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":"Modelling COVID-19 epidemic curve in Taipei City, Taiwan by a citywide wastewater SARS-CoV-2 Surveillance","authors":"Chung-Yen Chen ,&nbsp;Yu-Hsiang Chang ,&nbsp;Chi-Hsin Sally Chen ,&nbsp;Sui-Yuan Chang ,&nbsp;Chang-Chuan Chan ,&nbsp;Pau-Chung Chen ,&nbsp;Ta-Chen Su","doi":"10.1016/j.hazadv.2025.100635","DOIUrl":"10.1016/j.hazadv.2025.100635","url":null,"abstract":"<div><div>Over 70 countries have adopted wastewater surveillance during the COVID-19 pandemic as a novel tool to detect unidentified cases and monitor epidemic curves. However, epidemic prediction models are highly site-specific, necessitating tailored approaches. This study aimed to establish a citywide wastewater surveillance system and develop an epidemic prediction model for Taipei City, Taiwan. From May to August 2022, wastewater samples were collected daily from the Xinyi and Neihu districts and twice weekly from the remaining 10 districts. SARS-CoV-2 genetic material was quantified using RT-qPCR, and a “relative signal” was calculated as the ratio of SARS-CoV-2 viral concentration to the concentration of the human RNase P gene to normalize variability in sample collection. Regression analysis based on data from the two districts was conducted to forecast new COVID-19 cases. On average, wastewater samples contained 1,829.0 ± 2,237.7 viral copies per liter, with relative signals averaging 17.1 ± 16.7. The best-fitting model, adjusted for temperature, indicated that a 1 % increase in viral signals corresponded to an approximately 0.27 % rise in the future 5-day moving average of new cases. With an R-squared value of 0.78, the model demonstrated robust explanatory power. The model, validated via a paired sample <em>t</em>-test, reliably estimated epidemic trends with no significant difference between predicted and reported cases in the other 10 districts. These findings suggest that wastewater viral surveillance can be an effective supplementary tool for epidemic forecasting in urban settings like Taipei, where high sewer connectivity is in place.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100635"},"PeriodicalIF":5.4,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143429103","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":"Evaluating heavy metal contamination from leachate percolation for sustainable remediation strategies","authors":"Muhammad Naeem ,&nbsp;Zaki-ul-Zaman Asam ,&nbsp;Mohsin Abbas ,&nbsp;Ala'a H. Al-Muhtaseb ,&nbsp;Mujahid Farid ,&nbsp;Muhammad Ali Haider ,&nbsp;Farayi Musharavati ,&nbsp;Mohammad Rehan ,&nbsp;Mohammad Ilyas Khan ,&nbsp;Muhammad Naqvi ,&nbsp;Abdul-Sattar Nizami","doi":"10.1016/j.hazadv.2024.100582","DOIUrl":"10.1016/j.hazadv.2024.100582","url":null,"abstract":"<div><div>Leachate is an extremely contaminated liquid generated as rainwater permeates through the open dumps and contains significantly high concentrations of heavy metals, organic pollutants and hazardous compounds. This study focused on assessing the concentration of heavy metals in leachate and their potential to contaminate soil near the Lohsar dumpsite in Rawalpindi. The leachate samples were collected from inside the dumpsite and the soil samples were collected at varying distances (25, 50, 75, 100 and 125 m) from the dumpsite, and a control was selected 1 km away. The samples were also collected vertically at depths of 0.2, 0.4, 0.6, 0.8 and 1 m from each of the sampling points. The leachate analysis from Lohsar dumpsite revealed elevated levels of organic and inorganic constituents surpassing acceptable limits. Except for Zinc (Zn) (2.26 mg <span>l</span>^-1), Chromium (Cr) (0.52 mg <span>l</span>^-1), and Nickel (Ni) (0.83 mg <span>l</span>^-1), the concentrations of other heavy metals including Cadmium (Cd) (0.43 mg <span>l</span>^-1), Copper (Cu) (1.73 mg <span>l</span>^-1), Lead (Pb) (1.38 mg <span>l</span>^-1) and Iron (Fe) (69.1 mg <span>l</span>^-1), exceeded the appreciable limits as prescribed by Pakistan National Environmental Quality Standard (NEQS) for municipal and industrial effluent discharge. Soil analysis indicated silty clay to silty clay loam composition, with pH, Electrical conductivity (EC), and organic contents decreasing with distance from the dumpsite, while bulk density increased. Concentrations of heavy metals, including Fe (18,330–54,320 mg Kg^-1), Pb (69.4–909 mg Kg^-1.), Cu (93.8–447.4 mg Kg^-1), Ni (31–248.9 mg Kg^-1), Cr (61–436.6 mg Kg^-1), Zn (171–1283.2 mg Kg^-1), and Cd (0.2–45.1 mg Kg^-1), exceeded the World Health Organization (WHO) appreciable limits for agricultural soils, with higher levels near the dumpsite. The geoaccumulation index (I_geo) suggested moderate contamination, while contamination factor (CF) indicated high levels for Cd and Pb. Pollution load index (PLI) depicted severe pollution, affirming anthropogenic contamination and a significant contribution from leachate. Pearson correlation analysis corroborated leachate-associated contamination. Mitigating measures are recommended, including efficient waste disposal and landfill practices, leachate treatment, continuous monitoring and adherence to pollution control standards.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100582"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143175910","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":"Biodegradable plastics from marine biomass: A solution to marine plastic pollution","authors":"Nida Khan ,&nbsp;K. Sudhakar ,&nbsp;R. Mamat","doi":"10.1016/j.hazadv.2024.100559","DOIUrl":"10.1016/j.hazadv.2024.100559","url":null,"abstract":"<div><div>The growing demand for plastics has raised environmental concerns due to their non-biodegradable nature. Sustainable solutions are urgently required to decrease plastic pollution. This study explored the potential of <em>Sargassum wightii</em>, a seaweed found in Malaysia, as a sustainable material for bioplastic films. The seaweed-based bioplastic was produced using an extraction-based method where alginate was formed using NaOH, followed by mixing sodium alginate with isopropanol and potato starch. The bioplastic was then characterized using various analytical techniques, including Thermogravimetric Analysis (TGA), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), and Fourier-Transform Infrared (FTIR) spectroscopy. Physical properties such as density and moisture content, along with environmental tests like water absorption and biodegradability, were evaluated. TGA analysis indicated that 31.12 % of the sample remained as residue. FTIR spectroscopy identified the presence of bioactive compounds, with a prominent alcohol group peak at 3358cm^-1. XRD analysis revealed a peak at 23.1°, indicating crystallinity within the sample. The moisture content of the bioplastic film was found to be 21.16 %. The water absorption test demonstrated the film's hydrophilic nature, showing a 60 % increase in weight. A soil burial test for biodegradability confirmed a 40 % reduction in weight over 21 days, indicating a reasonable degradation rate. These findings suggest that seaweed holds promise as an alternative raw material for bioplastic production, contributing to more sustainable materials and reducing reliance on non-biodegradable plastics.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100559"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176343","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":"Manure and iron oxide show potential for reducing uptake of arsenic and mercury in lettuce grown in a contaminated mining site","authors":"Albert Kobina Mensah ,&nbsp;Ephraim Sekyi-Annan ,&nbsp;Prince Addai ,&nbsp;Ophelia Osei Ulzen ,&nbsp;Musah Salifu ,&nbsp;Sadick Adams","doi":"10.1016/j.hazadv.2024.100545","DOIUrl":"10.1016/j.hazadv.2024.100545","url":null,"abstract":"<div><div>The poor soil quality and high concentrations of potentially toxic elements (PTEs) found in gold mine tailings make them inappropriate for crop production. Assessing the viability of mine tailings for crop production after mining is essential because of the harmful impacts of these PTEs on food safety and human health. A 44-day pot experiment was conducted to test the effectiveness of different soil amendments in reducing the levels of PTEs at a decommissioned mining site in south-western Ghana. Compost, iron oxides, and poultry manure were applied individually or in combination to the mine soil in the pots. Lettuce (<em>Lactuca sativa</em> L.) was subsequently planted in the pots. Upon reaching maturity, the lettuce was harvested, and an analysis of the nutrients and PTE contents in both the soil and plants was done. The uptake of PTE by lettuce was evaluated, and the transfer coefficients of the PTEs were determined. The addition of manure and iron oxide as distinct ameliorants significantly decreased the uptake of PTEs by lettuce. The application of manure led to a 93 % decrease in arsenic (As) bioaccumulation in lettuce. Iron oxide resulted in a notable 67 % decrease in the bioaccumulation of As in lettuce. The exclusive application of manure led to an 83 % reduction in Hg uptake by lettuce plants, while Co uptake experienced a 46 % increase. Utilizing manure and iron oxides could prove beneficial in enhancing soil quality and potentially reducing the uptake of arsenic and mercury by lettuce grown in the contaminated mining site.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100545"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176344","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":"Extraction of biosurfactants from LDPE and PAH degrading bacterial strains isolated from plastics and oil contaminated sites: Statistical optimization using response surface methodology","authors":"Rajalakshmi Sridharan ,&nbsp;Manasa Muralidharan ,&nbsp;P. Senthil Kumar ,&nbsp;K. Veena Gayathri ,&nbsp;Gayathri Rangasamy","doi":"10.1016/j.hazadv.2025.100603","DOIUrl":"10.1016/j.hazadv.2025.100603","url":null,"abstract":"<div><div>Bacterial strains degrading hydrophobic pollutants are known to produce surfactants, which reduce the hydrophobicity and enhance the biodegradation process. The bacterial strains reported in previous study with the ability to degrade LDPE and PAH were used in this study to screen for their ability to produce biosurfactants. The produced biosurfactant was optimized for enhanced activity using Response Surface Methodology (RSM). The <em>P</em> &lt; 0.05 confirmed the reliability of the generated quadratic model for biosurfactant activity. The biosurfactant produced by <em>S. hominis</em> and V<em>. owensi</em> showed a positive hemolytic activity with a constant increase in the diameter of the zone formed. The former resulted in 4 µg/mL and the latter in 3 µg/mL of CMC. FTIR analysis indicated the presence of C-H stretching, C=O stretching, N-H stretching, and C=C stretching as common in biosurfactants produced by both bacterial strains. The ¹H NMR revealed the presence of secondary amides/imides in the biosurfactants. GC–MS analysis indicated the presence of esters and acids in the biosurfactant. These conclude that the extracted biosurfactant is a mixture of compounds which degrades LDPE and PAHs.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100603"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176353","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":"Wastewater-impacted streams within an agricultural catchment: Occurrence, attenuation, and risks of organic micropollutants","authors":"Zita Zrínyi ,&nbsp;Nikoletta Kovács ,&nbsp;Renáta Gerencsér-Berta ,&nbsp;Ildikó Galambos ,&nbsp;Barbara Kovács ,&nbsp;Tamás Kucserka ,&nbsp;István Gábor Hatvani ,&nbsp;Anna Viktória Vancsik ,&nbsp;László Bauer ,&nbsp;Lili Szabó ,&nbsp;Zoltán Szalai ,&nbsp;Gábor Maász ,&nbsp;Attila Csaba Kondor","doi":"10.1016/j.hazadv.2024.100572","DOIUrl":"10.1016/j.hazadv.2024.100572","url":null,"abstract":"<div><div>The occurrence, attenuation factors, and risks of 31 organic micropollutants (OMPs), including pharmaceutically active compounds (PhACs), pesticides, and bisphenols were investigated in the transboundary catchment of the lower River Mur. Water samples were collected monthly for one year from the river and its small, wastewater-impacted tributaries in two Central European countries, Croatia and Hungary. The analysis showed that the most polluted streams for PhACs, as well as the herbicides and neonicotinoids studied, were the smallest tributaries on the Hungarian side. However, the concentrations of persistent pollutants detected in almost all River Mur samples (e.g., bezafibrate, carbamazepine, diclofenac (DIC), atrazine) were not affected by the polluted water of the sampled tributaries. This, in turn, highlighted the importance of long-distance pollution of the river. Principal component analysis showed that photo- and biodegradation may be considered the most important attenuation factors in the river, resulting in lower OMP concentrations in warmer seasons. This, however, could not be confirmed in the case of the tributaries, in which there is not enough space and time for in-stream attenuation. The risk assessment showed that DIC and estrone were the pollutants of greatest risk in all watercourses investigated, including small streams. The key findings of the study are that even in small streams in rural settings, some wastewater-derived PhACs pose serious environmental risks throughout the year, compared to pesticides with stronger seasonality. This is exacerbated by low attenuation and increased detection of some non-persistent OMPs due to relatively low dilution and short retention time.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100572"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177667","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}