Archives of Environmental Contamination and Toxicology最新文献

{"title":"Differential Ecotoxicity of Marine Litter Components: Identification of Typologies with Higher Hazard Potential","authors":"M. Calviño,&nbsp;A. Vilas,&nbsp;M. Haseler,&nbsp;R. Beiras","doi":"10.1007/s00244-026-01225-1","DOIUrl":"10.1007/s00244-026-01225-1","url":null,"abstract":"<div><p>Marine litter was sampled on beaches from the Baltic (Germany), the NE Atlantic (Galicia) and the Mediterranean (Morocco, Tunisia, Egypt, Italy) coasts according to standard procedures, and occasionally from the NE Atlantic seafloor by trawling. Collected items were associated to OSPAR and JRC typologies. The ecotoxicity of specific types of marine litter was assessed by measuring the inhibition of <i>Paracentrotus lividus</i> embryo-larval development caused by their leachates. Cigarette butts exhibited the highest toxicity consistently across all sampling sites, followed in decreasing order by foam, fisheries related items, and strings. The food-related items: plastic caps, metal caps and PET water bottles, showed the lowest ecotoxicity. Overall, the results indicate substantial differences in the ecotoxicological hazard of marine litter typologies under standardized laboratory conditions, with cigarette butts showing the highest hazard potential among the categories tested.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"91 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149367403","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 Microplastic and Element Contamination in Fish Sold by Informal Roadside Vendors in Limpopo Province, South Africa","authors":"Alice R. Tshifura,&nbsp;Nombuso N. Themba,&nbsp;Franco Teixeira-de-Mello,&nbsp;Linton F. Munyai,&nbsp;Farai Dondofema,&nbsp;Ncumisa Y. Matam,&nbsp;Tatenda Dalu","doi":"10.1007/s00244-026-01223-3","DOIUrl":"10.1007/s00244-026-01223-3","url":null,"abstract":"<div><p>Fish is the cheapest source of protein, minerals, and vitamins for most households in sub–Saharan Africa. Of late, microplastic and metal pollution have raised concerns about food safety, especially in informal markets where fish is commonly sold and consumed. Informal roadside fish markets are, however, almost absent from this literature, and the extent to which post harvest handling adds to the contaminant load of the tissue that is actually eaten is unknown. This study assessed microplastic and element contamination in ready to eat braaied (open fire grilled) fish sold by roadside vendors in Thohoyandou, Limpopo Province, South Africa. Fish samples (<i>n</i> = 4 per stall) were collected from nine stalls, and microplastics extracted from the dorsolateral white muscle were characterised by morphology, colour and polymer type using stereomicroscopy and micro–Fourier transform infrared (µ–FTIR) spectroscopy, while element concentrations in the same tissue were determined by inductively coupled plasma mass spectrometry (ICP–MS) following microwave assisted acid digestion. The study indicates high microplastic burdens, dominated by fibres, films, and fragments. Total microplastic abundances differed significantly among sites, with mean values ranging from ~ 105 particles kg^− 1 at site 9 to ~ 470 particles kg^− 1 at site 1. Transparent microplastics dominated, and colours such as black, blue, red, yellow, green and other occurred at much lower concentrations. Polymer identification by µ–FTIR showed that polyethylene (40.5%), polypropylene (23.8%), polystyrene (18.3%) and polyvinyl chloride (7.4%) accounted for most of the particles analysed. Iron (Fe) was the dominant trace element, showing the highest mean concentrations across all sites (~ 70–110 mg kg⁻¹). The concentrations of the 12 elements recorded in braaied fish from roadside vendors varied among sites, and mean Cr, Cu, Se and Mo concentrations exceeded FAO/WHO recommended maximum levels for fish at several stalls. Estimated consumer intake ranged from ~ 180 to ~ 790 particles per meal (~ 2–12 particles kg^− 1 body weight), with the highest values at stalls adjacent to busy roads. There is a need for improved hygiene practices, better control of plastic pollution, and enhanced food safety monitoring in informal fish markets in South Africa.</p></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"91 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13710681/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149261176","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":"Does Exposure to Glyphosate-Based Herbicide Affect the Aerobic Metabolism, Oxidative Stress and Fatty Acid Profile of Pacú (Piaractus mesopotamicus)?","authors":"A. F. Bonifacio,&nbsp;C. F. Marón,&nbsp;M. L. Ballesteros,&nbsp;D. Labuckas,&nbsp;M. C. Labaque,&nbsp;M. Zambrano,&nbsp;I. Filippi,&nbsp;Andrea Cecilia Hued","doi":"10.1007/s00244-026-01228-y","DOIUrl":"10.1007/s00244-026-01228-y","url":null,"abstract":"<div><p>Glyphosate in southern South America is considered a pseudopersistent contaminant. Given Roundup^®’s multiple effects on health, reproduction, and overall species well-being worldwide, it is imperative to evaluate its effects on exposed biota. We evaluated the effects of two concentrations of Roundup Control Max^® (0.7 mg/L and 7 mg/L; the former being environmentally relevant) over 14 days of exposure on aerobic metabolism, oxidative stress, and fatty acid profiles in the economically relevant fish species <i>Piaractus mesopotamicus</i>, and compared them with a control experiment. The results showed no significant variation in basal or post-exercise metabolism but revealed significant differences in the delta between these parameters. Oxidative stress was elevated in the brains of exposed individuals but not in the liver. Lipid profiles did not vary significantly among individuals exposed to the herbicide. Our findings highlight this formulation’s influence on a key metabolic parameter and oxidative stress. It also advances the biological and nutritional characterization of <i>P. mesopotamicus</i>. Further studies should continue to evaluate the effects of chronic herbicide exposure on the aerobic metabolism of this and other species.</p></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"91 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149261233","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":"Legacy (Organochlorine) and Current Use (Neonicotinoid) Pesticides in Fish from Two Subtropical River Basins","authors":"Marelize Marsay,&nbsp;Chinemerem R. Ohoro,&nbsp;Collins Nimako,&nbsp;Yared B. Yohannes,&nbsp;Yoshinori Ikenaka,&nbsp;Nico J. Smit,&nbsp;Mayumi Ishizuka,&nbsp;Victor Wepener","doi":"10.1007/s00244-026-01219-z","DOIUrl":"10.1007/s00244-026-01219-z","url":null,"abstract":"<div><p>The rapid population growth across Africa has increased the demand for food production, resulting in increased pesticide use. South Africa is among the top four pesticide importers in Sub-Saharan Africa, raising significant concerns regarding the contamination of freshwater ecosystems. Organochlorine pesticides (OCPs), historically used for agriculture and vector control, persist in the environment due to their high lipophilicity and long half-lives. Despite bans on many OCPs, residues remain in aquatic systems, potentially affecting non-target organisms such as fish. Similarly, neonicotinoids, introduced as safer alternatives, are now linked to adverse effects on aquatic biota, yet little is known about their bioaccumulation in wild fish species in southern Africa. This study investigated 13 neonicotinoids and 19 OCPs in fish muscle tissue from the Inkomati and Letaba catchments. Only two OCPs, <i>p,p’</i>-DDE and <i>p,p’</i>-DDD, were detected, likely due to ongoing DDT use in malaria control. Concentrations were generally low and varied between sites, with higher values found in the Letaba catchment. Neonicotinoids were detected at low concentrations, with acetamiprid and imidacloprid being the most prevalent, although the concentrations were lower than those reported globally. Muscle tissue, representing long-term exposure, may underestimate total pesticide burdens due to lower lipid content than other tissue types. Findings suggest that the detected residues reflect the persistent legacy of historical DDT use, potential ongoing localised DDT use for malaria vector control, as well as ongoing neonicotinoid use in agricultural systems. Although concentrations were below levels of concern for vertebrates, this study highlights the need for continued monitoring and expanded tissue analysis to better understand bioaccumulation and ecological risks in southern African freshwater systems.</p></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"91 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13710463/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149261229","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":"Mapping Radionuclide Exposure Through Marine Gastropods in Coastal Waters of Kerala, South-West India","authors":"Yaseen Nawaz Shareef,&nbsp;Mohan Feroz Khan","doi":"10.1007/s00244-026-01215-3","DOIUrl":"10.1007/s00244-026-01215-3","url":null,"abstract":"<div><p>Naturally occurring radionuclides in marine food webs are an important radiation exposure pathway for coastal populations, especially in high-background natural radiation areas (HBNRAs). This study investigated the accumulation, spatial distribution, ecological controls, and radiological implications of ²³⁸U, ²³²Th, ²¹⁰Po, and ²¹⁰Pb in 15 commercially and ecologically important gastropod species collected along the heavy mineral-rich Kollam coast of southwest India. The activity concentrations ranged from BDL(≤ 0.5)–1.8 Bq kg⁻¹ for ²³⁸U, 0.62–4.1 Bq kg⁻¹ for ²³²Th, 14.7–76.4 Bq kg⁻¹ for ²¹⁰Po, and 3.2–56.4 Bq kg⁻¹ for ²¹⁰Pb, with overall accumulation following ²¹⁰Po ≫ ²¹⁰Pb ≫ ²³²Th &gt; ²³⁸U. Significant differences were observed among species, taxonomy, feeding guilds, and stations for ²¹⁰Po and ²¹⁰Pb (Kruskal–Wallis, <i>p</i> &lt; 0.01), whereas ²³⁸U and ²³²Th showed limited biological variability. Strong positive correlations between ²¹⁰Po and ²¹⁰Pb (<i>r</i> &gt; 0.80, <i>p</i> &lt; 0.001) and elevated ²¹⁰Po/²¹⁰Pb ratios (1.09–4.59) indicated preferential enrichment and retention of ²¹⁰Po. The annual committed effective dose (A_CED) was estimated to vary between 62.5 and 229.5 µSv y⁻¹, with an average value of 178 µSv y⁻¹. Although the carcinogenic risk to the general public was minimal, the results highlight the importance of thorough tailored species-specific ecological monitoring, guidelines for human consumption, and strategies for sustainable management.</p></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"91 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189574","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":"Correction: Bioaccumulation Patterns of Potentially Toxic Elements in Three Grouper Species from the Nizampatnam Coast, India: Multivariate Analysis and Risk Assessment","authors":"Darwin Chatla,&nbsp;Padmavathi Pamulapati,&nbsp;Suneetha Kola,&nbsp;Ravikumar Kapavarapu,&nbsp;Mahmoud Mahrous M. Abbas","doi":"10.1007/s00244-026-01216-2","DOIUrl":"10.1007/s00244-026-01216-2","url":null,"abstract":"","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"91 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149179066","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":"Maternal–Pup Mercury Relationship in South American Sea Lions and Fur Seals","authors":"Anaclara Roselli-Laclau,&nbsp;Javier García-Alonso,&nbsp;Alex Valdés,&nbsp;Mariana Freitas-Souza,&nbsp;Marcelo G. Almeida,&nbsp;Carlos Eduardo de Rezende,&nbsp;Valentina Franco-Trecu","doi":"10.1007/s00244-026-01227-z","DOIUrl":"10.1007/s00244-026-01227-z","url":null,"abstract":"<div><p>Mercury (Hg) is a non-essential, globally distributed toxic metal that bioaccumulates in aquatic organisms and biomagnifies across trophic levels, posing a threat to top predators such as marine mammals. Our aim was to evaluate total mercury (THg) relationships in mother–pup pairs of two pinniped species, South American sea lions (<i>Otaria flavescens</i>) and South American fur seals (<i>Arctocephalus australis</i>), from Isla de Lobos, Uruguay. We quantified THg in maternal hair and pup lanugo from 11 <i>O. flavescens</i> and 46 <i>A. australis</i> mother–pup pairs. THg concentrations were significantly higher in <i>O. flavescens</i> than in <i>A. australis</i> for both adult females (30.5 ± 9.3 μg/g vs. 5.7 ± 3.4 μg/g, dry weight) and pups (25.3 ± 13.2 μg/g vs. 4.4 ± 2.5 μg/g, dry weight). Hg levels in <i>O. flavescens</i> pups are among the highest recorded for pinnipeds. Pup THg concentrations were positively associated with maternal THg concentrations in both species, although the explanatory power of the final models differed markedly between species (R² = 0.75 in <i>O. flavescens</i> and R² = 0.20 in <i>A. australis</i>). In <i>O. flavescens</i>, male pups had lower THg concentrations than females for a given maternal THg concentration, whereas no sex effect was detected in <i>A. australis</i>. The presence of THg in lanugo formed in utero provides evidence of prenatal Hg exposure, while the variability in mother–pup relationships limits the use of pup lanugo as a quantitative proxy for THg concentrations in individual mothers. Instead, pup lanugo may provide a minimally invasive matrix for characterizing prenatal Hg exposure and broader species- or population-level patterns.</p></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"91 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149165161","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":"Tracing Industrial Microplastics Footprint in Fiji’s Marine Environment","authors":"David Rohindra,&nbsp;Tejesvi Patel,&nbsp;Roselyn Lata,&nbsp;Timaima Waqainabete,&nbsp;Robert Chang","doi":"10.1007/s00244-026-01226-0","DOIUrl":"10.1007/s00244-026-01226-0","url":null,"abstract":"<div><p>This study investigated the presence of microplastics (MP) in drainage channels that carry stormwater and greywater runoffs from areas surrounding the industrial sites on Viti Levu, Fiji’s main island. Water samples were collected, digested with hydrogen peroxide, separated by density separation and filtered through an aluminum oxide Anodisc membrane filter (0.2 μm pore size) for particle recovery. The filter membranes were observed under a microscope for the presence, size and morphology of MP. 93.4% of particles ≥ 100 μm were confirmed as MP by ATR-FTIR. Across all sampling locations, an average MP concentration of 2.23 ± 0.78 MP L⁻¹ was observed, with the highest MP abundance (3.08 MP L^− 1) at Site 5 and the lowest (1.26 MP L^− 1) at Site 2. Fragments accounted for the largest number of MP (48.08%), followed by fibers (47.83%) and films (4.09%). Most of the MP (52.30%) were smaller than 500 μm. Polyethylene (PE, 46.29%) and polystyrene (PS, 33.76%) were the most prevalent polymers, reflecting their extensive use in packaging materials. These findings highlight the substantial role of industrial activities in MP contamination of the marine ecosystems. In Fiji, PS has been completely banned as a single use plastic, while PE is restricted under certain conditions. It is important to extend this ban to include PE and PS packaging materials to accelerate the elimination of these plastics from Fiji’s environment.</p></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"91 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149164094","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":"Multivariate Analysis and Characteristics of Selected Potentially Toxic Elements in Muscle Tissue and Hepatopancreas of Oysters (Crassostrea spp.) from Coastal Areas of Quang Ninh: Bioaccumulation Features, Health Risk Assessments and Origin Sources","authors":"Xuan-Quang Nguyen,&nbsp;Van-Hao Duong,&nbsp;Marckasagayam Priyadharshini,&nbsp;Mohamed Saiyad Musthafa,&nbsp;Khai M. Nguyen,&nbsp;Thanh-Xuan Pham-Thi,&nbsp;Nguyen Duc Hieu,&nbsp;Hoang Bao Anh,&nbsp;Hiep Hoang Van,&nbsp;Dinh-Kien Ta,&nbsp;Trung-Tien Chu","doi":"10.1007/s00244-026-01212-6","DOIUrl":"10.1007/s00244-026-01212-6","url":null,"abstract":"<div><p>The presence of potentially toxic elements (PTEs) in the marine environment poses potential risks to both marine ecosystems and human health. This study investigated concentrations, bioaccumulation patterns, and associated health risks of PTEs in oysters (<i>Crassostrea spp.</i>) collected from the coastal waters of Quang Ninh, Vietnam. Zinc (Zn) had the highest concentrations (65.4 mg/kg in muscle tissue and 56.8 mg/kg in hepatopancreas), wherea mercury (Hg) showed the lowest concentrations (0.0064 mg/kg and 0.0034 mg/kg, respectively) in both organs. There was a positive correlation between shell size and weight with PTE concentrations in both organs, suggesting increased bioaccumulation with long-term exposure to the environment. Principal component analysis (PCA) identified three distinct sources of PTEs: anthropogenic inputs from industrial, agricultural, and transportation activities (PC1, variance 33.0%), mixed anthropogenic and natural sources (PC2, variance 22.9%), and natural sources combined with the impact of coal mining in the region (PC3, variance 16.8%). Health risk assessment using the Risk Quotient (RQ) revealed that cadmium (Cd) in the hepatopancreas posed the most significant health concern, with RQ values exceeding 1 under the worst-case scenarios. These findings provided a valuable scientific basis for regional environmental pollution monitoring and control measures. In addition, the results emphasize the need for continuous monitoring of Cd concentrations for sustainable aquaculture development in the region.</p></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"91 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149079443","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":"From Soil Contamination to Internal Metal Burden: Drivers of Fe, Cu and Zn Bioaccumulation in Tropical Achatininae Across a Peri-Urban Contamination Gradient (Abidjan, Côte d’Ivoire)","authors":"Gisette Affoué Kouadio,&nbsp;Maxime Louzon,&nbsp;Jean-Didié Memel,&nbsp;Elodie Larissa Katta","doi":"10.1007/s00244-026-01222-4","DOIUrl":"10.1007/s00244-026-01222-4","url":null,"abstract":"<div><p>Peri-urban soils in rapidly expanding West African cities are subject to increasing metal contamination from industrial, urban, and agricultural activities, yet ecotoxicological risk assessment tools adapted to tropical contexts remain scarce. This study characterises the tissue-specific accumulation of iron (Fe), copper (Cu), and zinc (Zn) in the hepatopancreas and edible flesh of two tropical Achatininae land snails, <i>Achatina achatina</i> and <i>Archachatina ventricosa</i>, exposed to thirteen contrasted peri-urban soils across the Abidjan district (Côte d'Ivoire). A Toxic Pressure Index (TPI) approach was applied in parallel to soil and tissue compartments to compare external contamination pressure with internal metal burden. Bioconcentration factors (BCF) were calculated for each metal, tissue, and species combination, and the influence of soil physicochemical properties on metal transfer was assessed through univariate and multivariate regression modelling. Soil TPI was dominated by zinc at all sites, with pseudo-total Zn concentrations reaching up to 37,656 mg kg⁻¹. No significant relationship was detected between TPI soil and TPI tissue in any compartment-species combination, demonstrating a systematic decoupling between external soil pressure and internal burden attributable to homeostatic physiological regulation and the limited bioavailability of pseudo-total metal fractions. BCF analysis revealed universal biodilution of Fe and Zn across all tissues and both species, with log–log regression slopes approaching − 1 for Zn in the flesh of both species, providing quantitative evidence of a homeostatic ceiling operating independently of soil loading. Copper was the sole element consistently bioconcentrated above unity in the hepatopancreas, in 8 out of 13 sites for <i>A. achatina</i> and 11 out of 13 for <i>A. ventricosa</i>, reflecting physiological demand for Cu. BCF values were significantly higher in the hepatopancreas than in the flesh for all metals and both species (Wilcoxon, all <i>p</i> &lt; 0.01), with hepatopancreas-to-flesh ratios ranging from 3- to 22-fold. A significant positive correlation between hepatopancreatic and flesh BCF of Cu in both species has direct implications for consumer exposure assessment given the traditional whole-body consumption of these snails. No significant interspecific differences in BCF were detected, suggesting broadly comparable metal regulation strategies between the two species. Multivariate regression modelling failed to identify ecologically coherent models combining soil metal concentrations and physicochemical soil properties as joint predictors of BCF.</p></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"91 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149035400","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}