Environmental Geochemistry and Health最新文献

{"title":"Environmental behavior of iodine povidone in aquaculture: stability and sediment adsorption kinetics.","authors":"Zhongen Tang, Jingtong Li, Lei Duan, Zifeng Luo, Jinrong Qiu, Jianli Zhou, Weida Yu","doi":"10.1007/s10653-025-02781-6","DOIUrl":"https://doi.org/10.1007/s10653-025-02781-6","url":null,"abstract":"<p><p>The overuse of iodine-based disinfectants poses a potential threat to both biological health and the ecological environment. However, their stability and the adsorption kinetics of active iodine by pond sediment in aquaculture settings remain poorly understood, with mechanisms unclear. This study investigates the environmental factors influencing the stability and adsorption characteristics of povidone-iodine (PVP-I) in pond sediment. Results show that under low-temperature, light-avoiding, and acidic conditions, high concentrations of PVP-I exhibit slow depolymerization, with efficacy duration significantly affected by initial concentration, temperature, and pH. Adsorption kinetics conform to the Elovich equation, indicating temperature's significant impact on adsorption rate and non-homogeneous diffusion behavior. Sediment's maximum adsorption capacity for active iodine is 4.05 mg/g, consistent with the Freundlich isotherm model. Exceeding sediment adsorption capacity may lead to active iodine infiltration into groundwater. Additionally, temperature fluctuations can disrupt adsorption-desorption equilibrium, posing seasonal risks of iodine concentration fluctuations. This study suggests controlling PVP-I dosage and blocking pollution pathways via temperature regulation and sediment improvement in aquaculture, providing a scientific basis for ecological risk assessment and safe application.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 11","pages":"479"},"PeriodicalIF":3.8,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145238411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Ecological and health risk assessment of heavy metal pollution of sediments from artisanal mining in North Central Nigeria.","authors":"Samson Eneojo Abalaka, Nuhu Abdulazeez Sani, Idoko Sunday Idoko, Oremeyi Zaynab Tenuche, Motunrayo Ganiyat Akande, Fatima Oyenike Oyelowo-Abdulraheem, Samuel Olorunfemi Adams, Bolade Thomas Adeyemo, Simon Azubuike Ubah, Simon Ikechukwu Enem, Sunday Augustine Ejeh","doi":"10.1007/s10653-025-02793-2","DOIUrl":"https://doi.org/10.1007/s10653-025-02793-2","url":null,"abstract":"<p><p>Artisanal and small-scale mining activities (ASMA) are common in many countries, especially within the rural areas, for socio-economic reasons. However, mining activities-induced heavy metal environmental pollution has now become a global ecological and public health problem requiring urgent targeted responses by all relevant stakeholders. The present study evaluated the ecological and health risk implications of ASMA-induced heavy metals pollution of 42 different sediments in North Central Nigeria using standard procedures. There was heavy metals pollution of sediments within the study areas in the order: Fe > Cr > As > Zn > Pb > Cd. Iron concentrations were significantly (p < 0.05) higher than those of other metals. Only Cd concentrations (3.29 ± 0.74 mg/kg) exceeded the FAO permissible sediment levels (1.00 mg/kg), indicating potential health risks. Cumulatively, site 4 (Niger State) was the most polluted site (Metal pollution index = 42.69) with site 7 (Kwara State) being the least (Metal pollution index = 9.07). However, Cd followed by As were the primary toxic pollutants. Based on the principal component analysis results, Cd and Zn concentrations were of anthropogenic origin while the Pb and Cr concentrations were lithogenic in origin. Only Fe (7.3340) and As (7.4630) individually as well as all the heavy metals cumulatively (15.3534) posed lifelong non-carcinogenic risk to adults exposed to heavy metal-laden sediments within the study areas. Nevertheless, the dermal and inhalational exposure routes posed no carcinogenic and non-carcinogenic health risks to adults. The relevant stakeholders should strive to improve the current mining practices with modern technology in order to reduce its heavy metals-induced environmental pollution and associated health risks within the study areas.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 11","pages":"478"},"PeriodicalIF":3.8,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145231783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Synthesis of molecularly imprinted polymer for highly selective adsorption of Sulfasalazine from contaminated wastewater.","authors":"Sina Zamani, Mohammad Mehdi Rahmani Shamsi, Amir Hossein Javid, Amir Hesam Hasani, Davoud Balarak","doi":"10.1007/s10653-025-02778-1","DOIUrl":"https://doi.org/10.1007/s10653-025-02778-1","url":null,"abstract":"<p><p>The molecularly imprinted polymer (MIP) was synthesized using the bulk polymerization technique and characterized by Scanning electron microscope (SEM), X-ray diffraction (XRD), Brunauer-Emmett-Teller/Barrett-Joyner-Halenda (BET/BJH), Thermogravimetric Analysis (TGA), and point of zero charge (pH_PZC) analyses. The adsorption of sulfasalazine (SSZ) onto the MIP was systematically investigated under various conditions. The researchers investigated the effect of initial SSZ concentration, MIP mass, temperature, pH, and contact time. The highest removal efficiency was achieved at pH 7, MIP dosage of 0.8 g/L, and an initial SSZ concentration of 10 mg/L, with an equilibrium contact time of 75 min. The maximum adsorption capacities obtained from the Langmuir model were 217.1, 235.4, 254.3, and 284.5 mg/g at 20, 30, 40, and 50 °C, respectively, confirming a monolayer adsorption process. Kinetic analysis indicated that the adsorption followed the pseudo-second-order model (R² > 0.995), while thermodynamic studies revealed that the process was spontaneous (ΔG° = -3.41 to -8.95 kJ/mol) and endothermic (ΔH° = 38.4 kJ/mol). The MIP maintained over 93% of its initial adsorption capacity after five regeneration cycles. Competitive adsorption tests further demonstrated a significantly higher affinity of the MIP for SSZ compared with ciprofloxacin and amoxicillin. These results suggest that the synthesized MIP is a highly efficient, selective, and reusable adsorbent for removing SSZ from aqueous environments.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 11","pages":"477"},"PeriodicalIF":3.8,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145225193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Fungal community dynamics in mining-affected soils: the role of soil particle modification.","authors":"Yinli Bi, Ying Ren, Jiapeng Kang, Tao Liu","doi":"10.1007/s10653-025-02616-4","DOIUrl":"https://doi.org/10.1007/s10653-025-02616-4","url":null,"abstract":"<p><p>Human activities have a profound impact on both the physical and chemical properties of soil, which, in turn, transform soil microbial ecosystems. Nonetheless, there is limited research on how opencast coal mining influences soil characteristics and microbial communities, particularly in the extreme climate of Xinjiang, China. Here, we investigated the rhizosphere soil of Haloxylon ammodendron at varying distances (500, 1,000, 1,500, and 2,000 m) from the boundary of the Hongshaquan opencast coal mine in Xinjiang to explore the effects of mining on soil properties and microbial communities. The study revealed significant alterations in soil properties with increasing distance from the coal mine, including changes in particle size distribution, soil organic carbon (SOC), amorphous iron (Feo), and available potassium (AK). A notable positive correlation was observed between Feo and clay content, as well as between SOC and Feo. Additionally, the fungal community structure varied across different soil layers due to mining activities, with the complexity of fungal networks showing a decreasing trend as the distance from the mine increased. Partial least squares path modeling (PLS-PM) further indicated that changes in distance and soil depth from the mine affected the clay content, leading to alterations in Feo. These changes subsequently impacted fungal diversity through modifications in SOC. In conclusion, coal mining activities directly influenced soil clay content, triggering a cascade of changes in other soil properties, ultimately altering fungal diversity. This study offered new insights into the ecological restoration efforts required for regions affected by opencast coal mining.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 11","pages":"475"},"PeriodicalIF":3.8,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145225235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Hydrogeochemical conceptualization of granitic-urban area for sustainable water resource management: a case study of Daejeon, Korea.","authors":"Hye-Na Ko, Jaeyeon Kim, Kang-Kun Lee","doi":"10.1007/s10653-025-02771-8","DOIUrl":"10.1007/s10653-025-02771-8","url":null,"abstract":"<p><p>Groundwater is increasingly vital under growing demand and climate pressures, making its effective management essential for sustainable use. A thorough understanding of hydrogeochemical processes is therefore critical to secure water quality and guide resource development. This study develops a conceptual model of a granitic aquifer in Daejeon, Korea, representing a typical weathered-fractured system under mixed urban and green land-use conditions. An integrated approach was applied, combining conventional geochemical analysis, multivariate statistics, geochemical modeling, and strontium isotope tracing. The results highlight silicate weathering as the dominant control on groundwater chemistry, validated by ⁸⁷Sr/⁸⁶Sr ratios (~ 0.716). Mineral-water interactions explain nearly half of the observed variance, mainly through the weathering of silicate minerals to secondary clays, which promote ion exchange processes. Anthropogenic activities, particularly agriculture and land use, account for ~ 15% of the variation, indicating localized contamination risks in the lowland areas. The conceptual model, supported by natural tracers, demonstrates that groundwater evolves from a Ca-HCO₃ type in recharge zones to mixed types, such as Ca(Na)-HCO₃ and Ca-Cl, along downgradient flow paths. This hydrogeochemical evolution reflects the combined effects of progressive mineral weathering and superimposed anthropogenic influences.By capturing both natural processes and human impacts, this study advances the understanding of hydrogeochemical dynamics in granite-based aquifers. The proposed conceptual framework provides a basis for predicting groundwater evolution and emphasizes the urgent need for sustainable management of these vulnerable resources in rapidly urbanizing regions.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 11","pages":"476"},"PeriodicalIF":3.8,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12496274/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145225175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Fluoride contamination and human health risks assessment in groundwater from community tube wells in Kamber Shahdadkot, Sindh, Pakistan.","authors":"Zahid Ullah, Ibad Ullah, Waqar Ali","doi":"10.1007/s10653-025-02795-0","DOIUrl":"https://doi.org/10.1007/s10653-025-02795-0","url":null,"abstract":"<p><p>Groundwater fluoride (F⁻) contamination poses a significant global public health challenge, with over 200 million people worldwide exposed to concentrations exceeding safe limits. This comprehensive study evaluates F⁻ contamination and associated health risks in the community tube wells across Kamber Shahdadkot district, Sindh Province, Pakistan. A total of 53 GW samples were collected and systematically analyzed for 15 hydrochemical parameters including major ions (Ca²⁺, Mg²⁺, Na⁺, K⁺, HCO₃⁻, SO₄²⁻, Cl⁻, NO₃⁻), trace elements (Fe²⁺, F⁻), and physicochemical properties (pH, turbidity, TDS, EC, depth). Fluoride concentrations ranged from 0.2 to 7.1 mg/L with a mean of 1.82 mg/L, where 42% of samples exceeded WHO permissible limits (1.5 mg/L). Hydrogeochemical analysis revealed predominant CaHCO₃ water type, with Gibbs diagrams indicating rock-water interaction as the primary control mechanism. The saturation indices indicated supersaturation concerning calcite, dolomite, fluorite, goethite, and hematite, highlighting the geogenic fluoride sources through mineral dissolution processes. PCA identified both natural and anthropogenic contamination sources. Quantile-Quantile plotting validated normal distribution of parameters with R² values ranging from 0.720 to 0.986. Health risk assessments, using average daily dose (ADDingestion) and Hazard Quotient (HQingestion) calculations, revealed significant risks, across all demographic groups, with children facing the highest exposure (mean HQ: 2.02), followed by females (1.65), and males (1.17). WQI assessment indicated 51% of samples unsuitable for consumption. These findings underscore the urgent need for comprehensive groundwater management strategies and alternative water supply systems to protect vulnerable populations in rural Sindh Province.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 11","pages":"474"},"PeriodicalIF":3.8,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145206002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 natural radioactivity levels and radiation hazards in soil samples from selected districts of Garmian zone, Sulaymaniyah city, Kurdistan region, Iraq (Oil & Gas Block).","authors":"Kardo Omed Mamand, Jamal Mohammed Rashid Abda, Kamal Omer Abdullah","doi":"10.1007/s10653-025-02789-y","DOIUrl":"https://doi.org/10.1007/s10653-025-02789-y","url":null,"abstract":"<p><p>This research investigates the natural radioactivity level associated with radiation hazards in soil samples, which are collected from different districts in Garmian zone, Sulaymaniyah City, Kurdistan region, Iraq. Also, the Garmian zone contains many important points including tourist positions, many human living districts, and an oil and gas block. The determination of the natural radioactivity level is important to environmental monitoring and assessment of public health. The collection of soil samples includes (41) samples in (27) districts, in which is HPGe detector was used to determine the naturally occurring radionuclides concentration such as ²²⁶Ra, ²³²Th, and ⁴⁰K. The results define that the activity concentrations vary per each different district, with a maximum of (196.6 Bq/kg) in Tovga Village and a minimum of (80.5 Bq/kg) in the Mahmoudia Village for radium equivalent activity, and the hazard indices include the way above the normal range in Tovga village and Bani Khelan town in both indoor and outdoor hazard indices, also excess lifetime cancer risks in outdoor and indoor are high with maximum (390 cases per million people per lifetime) in outdoor and maximum (3030 cases per million people per lifetime) in indoor. This study furnishes valuable baseline information about environmental management and understanding better of natural radioactivity in that geologically and industrially important zone of Iraq.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 11","pages":"472"},"PeriodicalIF":3.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145198853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"From tailings to tables:risk assessment of potentially toxic elements in edible crops cultivated in mine tailing impacted soils.","authors":"Amanda Duim Ferreira, Heloisa Farineli Corveloni, Alexys Friol Boim, Hermano Melo Queiroz, Tamires Patrícia Souza, Xosé L Otero, Ângelo Fraga Bernardino, Tiago Osorio Ferreira","doi":"10.1007/s10653-025-02770-9","DOIUrl":"https://doi.org/10.1007/s10653-025-02770-9","url":null,"abstract":"<p><p>The deposition of mine tailings in agricultural ecosystems raises concerns about the risks to human health, particularly in areas where the dissolution of mineral phases can release potentially toxic elements (PTEs). Soils and crops cultivated in the Rio Doce estuary, which has been receiving iron-rich mine tailings since 2015, were collected in August 2021 to evaluate the total concentrations of PTEs in cultivated plant species (cocoa, cassava, and bananas) in the estuary. We estimated the risks of consuming these products by calculating the Hazard Quotient (HQ), Hazard Index (HI), and Total Hazard Index (THI). Our results showed that the Cd, Cr, Cu, Ni, and Pb concentrations in all edible parts of the plants exceeded the threshold values in all the crops studied (cocoa beans, banana fruits, and cassava rhizomes). In addition, there was a possible non-carcinogenic risk associated with the consumption of banana fruits by children (THI > 1). For adults, there was no probable risk of consuming the products from the studied plants (HQ, HI, and THI < 1). In conclusion, the association between PTEs and Fe oxides, which often act to reduce PTEs' phytoavailability, was not an efficient mechanism in the studied area. This inefficiency raises concerns regarding the risk associated with food production in such environments.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 11","pages":"473"},"PeriodicalIF":3.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145198783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Beyond consumption: a multi-pathway human health exposure risk assessment of potentially toxic elements in geophagic soils of Botswana.","authors":"Tsholofelo L K Molale, Ferdinand J Dina Ebouel, Peter N Eze","doi":"10.1007/s10653-025-02791-4","DOIUrl":"https://doi.org/10.1007/s10653-025-02791-4","url":null,"abstract":"<p><p>Geophagy, the deliberate consumption of earth materials, is a practice widely reported throughout human history; however, its potential health risks are poorly documented in Botswana. This research aimed to characterize geophagic soils based on their geochemical and mineralogical properties and to assess the potential human health risks associated with exposure via multiple pathways. Samples from six geophagic hotspots were analysed for macro elements (K, Ca, Mg, and P), microelements (Cu, Cr, Ni, Fe, Zn), and potentially toxic elements (PTEs) (As, Pb, Cd, Hg). Geochemical ratios from the United States Environmental Protection Agency (USEPA) were used to compute human health risk indices (HRIs), including carcinogenic risk (CR) and non-carcinogenic risks (hazard quotient (HQ) and hazard index (HI)). Mineralogy of the clay-sized fractions indicates the presence of kaolinite, goethite, illite, calcite, and muscovite. The average concentrations of macro elements followed the order: K (1.43%) > Ca (0.88%) > Mg (0.47%) > P (0.012%), while the average contents for microelements were Fe > Cu > Cr > Ni > Zn, and PTEs ranged as follows: Pb > As > Hg > Cd with Pb having a mean concentration of 15.16 mg kg^-1 and As 1.92 mg kg^-1 respectively. The HIs of the PTEs for all three exposure pathways are below 1 for both adults and children. Ni, Cr, and As have the highest mean CR values, which fall within the acceptable range of 1.00E-06 to 1.00E-04 for both adults and children for exposure through oral consumption and dermal contact, while the mean CR values for exposure through inhalation are all below 1.00E-06. Thus, exposure to PTEs in the soil is unlikely to pose health risks. Nevertheless, caution is necessary as cumulative exposure from other sources could significantly increase the overall health risk to practitioners.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 11","pages":"471"},"PeriodicalIF":3.8,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145198794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Correction: Effects of microplastics in soil on the regulation of cadmium bioavailability by biochar.","authors":"Huijuan Shao, Mengcheng Yuan, Jinhua Wang","doi":"10.1007/s10653-025-02779-0","DOIUrl":"https://doi.org/10.1007/s10653-025-02779-0","url":null,"abstract":"","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 11","pages":"470"},"PeriodicalIF":3.8,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145198814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}