Environmental Monitoring and Assessment最新文献

{"title":"Assessment of some trace elements in African catfish (Clarias gariepinus) from Hadejia-Nguru Wetlands, Northern Nigeria.","authors":"Musa Alhaji Musa, Dahiru Sani, Abdulwakil Olawale Saba, Mohammad Noor Amal Azmai, Muhammad Farhan Nazarudin, Maimuna Ahmad Amshi","doi":"10.1007/s10661-025-14337-3","DOIUrl":"https://doi.org/10.1007/s10661-025-14337-3","url":null,"abstract":"<p><p>This study investigates seasonal and spatial variations in trace element concentrations (Cu, Nb, Pt, Fe, Hg) in Clarias gariepinus from Nigeria's Hadejia-Nguru Wetlands, a RAMSAR site critical to regional food security. Muscle and kidney tissues were analyzed using SEM-EDX to assess contamination levels against WHO/FAO maximum residue limits (MRLs). Results revealed seasonal dynamics: Cu in muscle peaked during the dry season (0.10 ppm and BDL in wet season), while Fe in kidneys was higher in the wet season (2.58 ppm vs. 1.86 ppm). Spatially, Nb and Pt concentrations were highest in Nguru (kidney: 0.45 ppm Nb, 0.15 ppm Pt), while Fe dominated in Margadu (2.98 ppm). Mercury was detected only in Margadu kidneys (0.07 ppm). Health risk indices (EDI, THQ, HI) indicated elevated risks for Fe in Margadu, particularly among fishers (HRI = 297.14), though most elements remained below WHO/FAO limits. The inclusion of Nb and Pt, rarely monitored in African aquatic systems, highlights emerging contamination concerns. These findings underscore the need for targeted pollution control and dietary advisories to mitigate health risks in vulnerable populations reliant on wetland resources.</p>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 8","pages":"887"},"PeriodicalIF":2.9,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Characteristics of microplastic pollution in the rivers of the Fergana Valley, Central Asia.","authors":"Alijon Khusanov, Yulia Frank, Mavluda Abduvalieva, Abdumukhtar Yakhyoyev, Ozodbek Sabirov, Egor Vorobiev, Svetlana Rakhmatullina, Sherzod Tashbaev, Muhammadyusuf Juraev, Ilyos Isaqov, Dilyorbek Karimjonov, Danil Vorobiev","doi":"10.1007/s10661-025-14351-5","DOIUrl":"https://doi.org/10.1007/s10661-025-14351-5","url":null,"abstract":"<p><p>Microplastic pollution is becoming one of the most pressing environmental issues of our time, especially in aquatic ecosystems, where it negatively impacts aquatic organisms and water quality. In different countries of the world, water pollution by microplastics has its own characteristics associated with the predominant sources and economic structure. Although numerous studies have been conducted worldwide, data on microplastic pollution of surface waters in Central Asia remain limited. Rivers in the Fergana Valley have not been previously studied. This creates the need for detailed studies to assess the scale and sources of microplastic pollution in this region. The aim of this study is to investigate the content, morphology and polymer composition of microplastics in surface waters of rivers in the Fergana Valley flowing through the territory of Uzbekistan. To achieve this goal, the following objectives were set: collecting water samples in the Sokh, Chodaksay, Govasay, Kasansay, Chartaksay and Andizhansay rivers; determining the concentration of microplastics in the collected samples; conducting a morphological analysis of the particles; determining the polymer composition of microplastics using microscopy combined with Raman spectroscopy (micro-Raman). The results of the study showed that the average concentration of microplastics in the surface waters of the studied rivers varied from 2.89 to 7.00 pcs./m³. Morphological analysis revealed the prevalence of fibers (83.7% of the total number of particles recorded), microplastics were mainly polyethylene terephthalate (PET), which accounted for 47.3% of all particles. The morphology and polymer composition of the particles indicate textile materials as the main potential source of river pollution. The results obtained demonstrate for the first time the level and nature of microplastics pollution of surface waters of rivers in the Fergana Valley. They highlight the need to develop effective strategies to reduce pollution by PET textile fibres and other microplastics in the region and conduct further research to assess their impact on ecosystems and human health.</p>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 8","pages":"896"},"PeriodicalIF":2.9,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Spatio-temporal analysis of air quality in high traffic density zones of Haridwar City, India.","authors":"Jogendra Singh, Pankaj Kumar, Amol Kale, Anuj Kumar Yadav, Pradip Kumar Maurya, Dinesh Kumar, Faheem Ahamad","doi":"10.1007/s10661-025-14312-y","DOIUrl":"https://doi.org/10.1007/s10661-025-14312-y","url":null,"abstract":"<p><p>Urban air pollution poses a significant threat to human health and environmental quality, especially in rapidly urbanizing areas. This study aimed to analyze the spatio-temporal variations of air quality in Haridwar City, India, identifying critical pollution hotspots. A systematic air quality monitoring approach was adopted to assess the air quality at the high traffic density zones of Haridwar City. Key pollutants such as particulate matter (PM_2.5 and PM₁₀) and gaseous matter (NO₂ and SO₂) were monitored for 1 year starting from April 2023 to March 2024. The data was processed to calculate the air quality index (AQI) using normalization methodology and Central Pollution Control Board (CPCB) recommended methodology to rank the selected sites based on their pollution level. The data was also analyzed using principal component analysis (PCA) and cluster analysis (CA) techniques to identify pollution trends and hotspots. PM₁₀ concentrations {(UKH1-103.07 to 125.37 µg/m³), (UKH2-100.38 to 114.40 µg/m³), (UKH3-105.88 to 119.85 µg/m³), (UKH5-127.08 to 130.96 µg/m³), (UKH6-126.79 to 139.11 µg/m³)} exceeded permissible limits of National Ambient Air Quality Standards (NAAQS) of 24 h (100 µg/m³) at all the sites except at UKH4 (92.06 to 97.51 µg/m³) and 7 (43.08 to 52.09 µg/m³) (control) in all seasons. PM_2.5 concentrations were found below the permissible limits of NAAQS of 24 h (60 µg/m³) at all the sites except at UKH5 (75.16 to 77.99 µg/m³) in all seasons. Gaseous emissions (NO₂ and SO₂) were found below the permissible limits of NAAQS (80 μg/m³). Seasonal variations indicated elevated particulate matter levels in winter due to atmospheric stagnation. Spatial analysis identified five critical hotspots (UKH1, 2, 3, 5, and 6) with consistently poor air quality indices (AQI > 50). The study indicates the urgent need for targeted air pollution mitigation strategies like water sprinkling and the use of mist cannon to suppress the dust emissions, especially in high-risk zones.</p>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 8","pages":"889"},"PeriodicalIF":2.9,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Tracking the seasonal dynamic response of water quality and phytoplankton communities: a case study of the Yaoshi River in the Sichuan Basin, China.","authors":"Xingnian Ren, Han Zhang, Junliang Zou, Xiaogang Tian, Jia Pu, Xiangtian Man, Anlan Zhou, Yali Wei, Dongdong Gao, Sikai Chen","doi":"10.1007/s10661-025-14379-7","DOIUrl":"https://doi.org/10.1007/s10661-025-14379-7","url":null,"abstract":"<p><p>Clarifying the succession and response mechanisms of water quality and phytoplankton communities is crucial for river water environment management. However, research in this field remains relatively insufficient in certain hilly areas of inland basins. This study conducted seasonal sampling in the Yaoshi River, analyzed water chemistry parameters and phytoplankton composition, and applied multivariate statistical methods to assess the water quality characteristics and phytoplankton structure. First, a descriptive statistical analysis of 13 water chemistry parameters revealed that the river is primarily affected by organic pollution. A total of 152 species of phytoplankton from 6 phyla were identified, with Cryptophyta showing the highest abundance in spring, Cyanophyta dominating in summer, and Bacillariophyta prevalent in autumn-winter. Further correlation and redundancy analysis (RDA) indicated varying degrees of association between phytoplankton community diversity, biomass, abundance, and water quality parameters. On an annual scale, water temperature was identified as the primary driver of phytoplankton community succession. However, during the high-temperature period, the nitrogen-phosphorus ratio became the dominant factor. The results revealed that the sensitivity of phytoplankton to total phosphorus (TP) decreased due to long-term adaptation to high-phosphorus environments, while total nitrogen (TN) became a key limiting factor in the summer. Based on these findings, a combination of emergency measures and long-term strategies is recommended to improve river ecosystem health. This study provides a deeper understanding of the mechanisms behind water quality and phytoplankton dynamics in data-scarce basins and offers valuable insights for regional water environment policy development.</p>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 8","pages":"888"},"PeriodicalIF":2.9,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Natural and anthropogenic controls on nutrient fluxes in two small rivers draining contrasting climate gradients across Southern Western Ghats, India.","authors":"Vipin T Raj, J A Gayathri, K Sreelash, D Padmalal, K Sajan, K Maya","doi":"10.1007/s10661-025-14344-4","DOIUrl":"https://doi.org/10.1007/s10661-025-14344-4","url":null,"abstract":"<p><p>The Western Ghats of southern India, a biodiversity hotspot and major water source, host several rivers influenced by diverse climatic, geological, and land-use settings. This study investigates the spatiotemporal dynamics of Dissolved Inorganic Nitrogen (DIN), Dissolved Inorganic Phosphate (DIP), and Dissolved Silica (DSi) in two small rivers-the Bhavani and the Thuthapuzha-which drain contrasting climatic zones of the southern Western Ghats. A total of 150 water samples were collected across seasons and zones to assess nutrient fluxes and their controlling factors. Results revealed substantial spatial and seasonal differences in nutrient concentrations. In the Bhavani river, mean DIN values were 112.12 µg/l (pre-monsoon), 1432.14 µg/l (monsoon), and 240.98 µg/l (post-monsoon). The corresponding values in the Thuthapuzha river were 278.56 µg/l, 306.90 µg/l, and 122.70 µg/l, respectively. Mean DIP concentrations ranged from 8.38 to 16.59 µg/l in the Bhavani and from 2.69 to 11.01 µg/l in the Thuthapuzha. DSi levels were higher in the Bhavani river, with mean values between 6.83 and 8.73 mg/l, compared to 4.51 to 7.67 mg/l in the Thuthapuzha river. Nutrient concentrations in the Bhavani increased downstream, influenced by intensive agriculture and domestic wastewater inputs, particularly in the semi-arid zones. In the Thuthapuzha, which drains a persistently humid catchment, nutrient enrichment was also observed in areas of high land-use intensity. Seasonal monsoonal runoff significantly impacted nutrient loads, with elevated DIN and DIP during the wet season. Higher DSi levels in cultivated zones were linked to silicate weathering and soil erosion. Long-term trends suggest an increase in nutrient inputs, particularly from fertilizer use. These findings highlight the role of climate, land use and anthropogenic pressure in regulating nutrient fluxes in tropical river systems and underscore the need for integrated watershed management in rapidly transforming catchments of the Western Ghats.</p>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 8","pages":"884"},"PeriodicalIF":2.9,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144590161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Impacts of abundance and habitat area weighting in allocating species trends to habitats.","authors":"Robin J Pakeman","doi":"10.1007/s10661-025-14352-4","DOIUrl":"10.1007/s10661-025-14352-4","url":null,"abstract":"<p><p>The dynamics of species depend on the management of their habitats. However, in the absence of good habitat monitoring data for many types of species, reliance has been placed on identifying habitats seeing marked changes in biodiversity through combining trends in their associated species into a habitat level metric. Several data sources on species occupancy, abundance within different habitats, and habitat area for two example taxa, bryophytes and lichens, were linked to assess how different methods of allocating existing species' abundance trends to habitats influenced the habitat statistics. In general, trends through time were similar, but the method of allocation had an impact on the absolute values of the Distribution Index that summarises weighted occupancy. Allowing generalists to contribute equally to specialist species in a habitat gave higher values of habitat level Distribution Index than methods which weighted species according to abundance in that habitat and habitat area. There were also impacts on the analysis of long-term and short-term trend data, with the more complex methods, including abundance within habitats and extent of habitat, detecting more differences between habitats, and, for some habitats, changing positive trends for bryophytes to no significant trend or even negative for sparsely vegetated habitats. If species trend data is to be used for identifying habitats where biodiversity trends are marked, then it is clear that weighting species, such that their total weight across the analysis is the same, is necessary. Developing the precise means to achieve that needs careful thought and the creation of a robust method that works across different species groups, but using unweighted data could lead to erroneous conclusions as they are so dependent on the dynamics of widespread species.</p>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 8","pages":"886"},"PeriodicalIF":2.9,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12241117/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Response of soil microbial community composition and function to prolonged heavy metal exposure.","authors":"Zhigang Zhao, Yongfeng Wang, Linghao Kong, Liyuan Zhao, Yachao Li, Teng He, Shigao Liu, Xiangcai Han, Songsong Gu, Shuyu Wu, Jiahao Zhang, Jintao Zhang, Bing Li","doi":"10.1007/s10661-025-14228-7","DOIUrl":"https://doi.org/10.1007/s10661-025-14228-7","url":null,"abstract":"<p><p>Understanding the effects of heavy metals on microbial community composition and function is crucial for environmental restoration. In this paper, soil samples with low, medium, and high levels of potential ecological risk (RI) associated with heavy metals were collected from a gold mining area in northern Laizhou, Shandong Province, Eastern China. The impact of heavy metals on soil microbial communities was assessed through Illumina high-throughput sequencing of 16S rRNA gene amplicons. The results demonstrated that while microbial community evenness remained relatively stable across varying RI levels, significant differences were observed in microbial community richness and composition. Canonical correlation analysis (CCA) revealed that nutrients were the primary factors shaping microbial communities under low RI levels, whereas pH and heavy metals played dominant roles under high RI levels. At the genus level, several taxa, including Acinetobacter, Paracoccus, Marinobacter, Halomonas, Streptococcus, Lactobacillus, Sulfobacillus, Sulfurifustis, Bacillus, and Pseudomonas, were identified as particularly tolerant to heavy metal stress. Co-occurrence network analysis showed that microbial networks were more complex and stable under low contamination, while increased cooperative interactions were observed under high contamination. At the phylum level, Proteobacteria, Firmicutes, and Bacteroidetes emerged as the key taxa in high RI soils. Functional predictions indicated that microbial processes related to replication and repair, extracellular polymeric substance (EPS) biosynthesis, membrane transport, and heavy metal resistance were significantly enhanced in high-risk environments. Keystone taxa employed various survival strategies, including extracellular polymerization, nutrient uptake, intracellular sequestration, active efflux systems, and collaboration with plants, to resist heavy metal stress. These findings provide new insights into the mechanisms of microbial adaptation and remediation in heavy metal-contaminated soils.</p>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 8","pages":"883"},"PeriodicalIF":2.9,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144590162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Inland waterways symphony: understanding transformation mechanisms of carbon and nitrogen emissions.","authors":"Anbarasu Krishnan, Yuvarajan Devarajan, Beemkumar Nagappan, Dhruv Kumar, Vijay J Upadhye","doi":"10.1007/s10661-025-14349-z","DOIUrl":"https://doi.org/10.1007/s10661-025-14349-z","url":null,"abstract":"<p><p>Inland rivers are vital ecosystems that regulate carbon and nitrogen cycles. The complex transformation processes that control carbon and nitrogen emissions in these essential ecosystems are examined in this research. This study reviews and synthesises literature to understand how biological, chemical, and physical processes affect carbon and nitrogen dynamics in inland waterways. Inland rivers convert carbon and nitrogen compounds due to microbial activity, hydrological dynamics, and external inputs. Organic matter is converted into greenhouse gases like CO₂ and CH₄ by these ecosystems' microbial populations. Microbe metabolism, especially nitrogen, is affected by nutrition availability, resulting in different emission patterns. Hydrological dynamics flow rates, residence durations, and water temperature influence carbon and nitrogen transfer and transformation. Wetlands and vegetation in inland rivers affect organic matter and nutrient cycling. Agricultural runoff and urbanisation add carbon and nitrogen to ecosystems, altering ecosystem dynamics. Understanding the transformation processes of inland waterway carbon and nitrogen emissions is crucial for understanding their participation in global carbon and nitrogen cycles and their effects on ecosystem health and climate change. Integration of biogeochemical processes' geographical and temporal variability is needed to quantify greenhouse gas fluxes from these ecosystems. Advanced analytical methods including stable isotope analysis and high-resolution sensors have illuminated inland waterway carbon and nitrogen changes. Interdisciplinary ecology, hydrology, and biogeochemistry research has also improved our knowledge of these ecosystems' intricate carbon and nitrogen cycle linkages. This study emphasises the need for further research on inland waterway carbon and nitrogen emission transformation processes. Researchers may improve prediction frameworks to evaluate environmental change's effects on carbon and nitrogen dynamics in these crucial ecosystems by merging field data, laboratory trials, and modelling. Effective management measures are needed to reduce human stresses on inland rivers and protect their ecology. Riparian buffers and wetland restoration may minimise fertiliser inputs and increase carbon sequestration. Greenhouse gas reduction measures from agriculture and industry may also reduce human influences on carbon and nitrogen cycling in inland waterways. It covers the transformation processes that control carbon and nitrogen emissions in inland waterways. This study helps us comprehend these ecosystems' involvement in the global carbon and nitrogen cycles by revealing their intricate biogeochemical processes. It also emphasises the need for transdisciplinary methods and sustainable management to protect inland waterway ecosystems from environmental change.</p>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 8","pages":"885"},"PeriodicalIF":2.9,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"The role of wintertime persistent inversion dynamics and drought conditions on PM₁₀ concentrations in Istanbul, Türkiye.","authors":"Hilal Arslan","doi":"10.1007/s10661-025-14362-2","DOIUrl":"https://doi.org/10.1007/s10661-025-14362-2","url":null,"abstract":"<p><p>Anthropogenic factors have intensified drought conditions, often transforming them into ecological disasters in many regions. Türkiye, located in the Mediterranean Basin, has experienced increasingly frequent and severe droughts, particularly affecting regions like Istanbul which is the focus of this study. This study investigates the impact of inversion levels and thickness during drought events on winter PM₁₀ concentrations in Kartal, Istanbul (northwestern Türkiye). For this purpose, winter PM₁₀ concentrations, wind speed (m/s) and wind direction data for the period 2008-2023, along with total precipitation (mm), minimum, average, and maximum temperature (°C) data for 1965-2023, were analyzed. The differing periods reflect PM₁₀ data availability from 2008 onward, while long-term meteorological data from 1965 provide a robust climatological baseline. Changes in PM₁₀ concentrations were analyzed using the drought indicator Standardized Precipitation-Evapotranspiration Index (SPEI)-1 monthly values, categorizing conditions as dry (SPEI < -0.99), normal (-0.99 < SPEI <0.99), and wet (SPEI >0.99). SPEI-1 was selected for its sensitivity to short-term drought variations and inclusion of evapotranspiration, unlike precipitation-only indices. Based on the winter precipitation anomalies and SPEI results, severe drought events were found in 2008, 2011, 2012, 2013, and 2014. During drought-affected winters, high-PM₁₀ concentration values (≥100 μg/m³) were observed when northeasterly light winds were active in the region (r = -0.92, p < 0.05). Furthermore, during the nighttime under winter drought conditions, when light northeasterly winds were dominant the inversion level was close to the surface (between 25 m and 130 m) and the inversion thickness was high (between 74 m and 484 m), severe PM₁₀ concentrations were observed. These conditions may facilitate dust transport from northern terrestrial areas to Kartal, Istanbul, while limiting dispersion which is a hypothesis requiring further validation.</p>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 8","pages":"877"},"PeriodicalIF":2.9,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144582752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Assessment of the impact of a non-operational municipal landfill site on groundwater quality: a case study from southwestern Poland.","authors":"Przydatek Grzegorz","doi":"10.1007/s10661-025-14280-3","DOIUrl":"10.1007/s10661-025-14280-3","url":null,"abstract":"<p><p>Groundwater and leachate quality tests were carried out in 2023-2024 at a closed landfill site in southwestern Poland. This novel study aimed to identify the variability in their compositions, taking into account physicochemical, microbiological, and toxicological tests on the site two decades after its closure. The impact of the closed landfill site on the groundwater environment during its non-operational phase was assessed. The results show that waste deposited in 1974-2001 caused a deterioration in the quality of the aquatic environment, as indicated by high values of various indicators, e.g. bicarbonates (1290.67 mg/L), electrolytic conductivity, ammonium ions, ammonium nitrogen, total inorganic carbon, free carbon dioxide, E. coli, and coliform bacteria, and luminescence inhibition. Wide range is a new approach to identifying the impacts of non-operational landfill sites on the aquatic environment. Particular deterioration in the groundwater and leachate quality was noticeable in the third and fourth quarters of 2023. The activity of the non-operational landfill site confirms the impact of the leaky subfloor on the significant deterioration of groundwater quality in its vicinity, taking into account seasonality. It is necessary to introduce additional inorganic and biological indicators for quarterly monitoring of the aquatic environment. Moreover, a vertical geomembrane screen must be incorporated to protect against the impact of the old landfill on groundwater until the end of its environmental activity.</p>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 8","pages":"872"},"PeriodicalIF":2.9,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12234619/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144582747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}