Archives of Environmental Contamination and Toxicology最新文献

{"title":"Multi-matrix Investigation of Heavy Metals and Arsenic Speciation in the Mae-Kok River System: Chemical Characterization and Source Attribution","authors":"Siwatt Pongpiachan,&nbsp;Patcharee Pripdeevech,&nbsp;Suttipong Wannapaiboon,&nbsp;Kanjana Thumanu,&nbsp;Sarunpron Khruengsai,&nbsp;Teerapong Sripahco,&nbsp;Danai Tipmanee,&nbsp;Dhammawit Haemanwichian,&nbsp;Weerat Kanchanaratchataphong,&nbsp;Krailak Fakkaew,&nbsp;Nion Sirimongkonlertkun,&nbsp;Aekkapol Aekakkararungroj,&nbsp;Tatporn Kunpradid","doi":"10.1007/s00244-026-01188-3","DOIUrl":"10.1007/s00244-026-01188-3","url":null,"abstract":"<div><p>The Mae-Kok River in northern Thailand is a transboundary river system influenced by multiple upstream and downstream anthropogenic pressures. This study presents a multi-matrix assessment of metal contamination by integrating river water, soils, and sediments with enrichment factor (EF) analysis, multivariate statistical approaches, and arsenic speciation. Concentrations of arsenic, lead, and nickel in river water frequently exceeded international guideline values, while EF results indicate substantial anthropogenic enrichment, particularly in the upstream reach of the river. Hierarchical cluster analysis, principal component analysis, and positive matrix factorization identify coherent groupings of elements (As, U, Co, Ni, and Cu) characterized by polymetallic geochemical associations. These patterns are compatible with upstream anthropogenic inputs involving sulfide-rich materials but do not uniquely identify specific point sources. In contrast, zinc and cadmium exhibit enrichment patterns and statistical character distinct from the polymetallic element group, consistent with diffuse anthropogenic influences such as agricultural activities, although these associations are indirect. Differences in clustering between river water and soil–sediment matrices highlight contrasting metal behavior between short-term aqueous transport and longer-term depositional accumulation. Synchrotron-based X-ray absorption spectroscopy shows that arsenic occurs predominantly as arsenate [As(V)], with localized enrichment of arsenite [As(III)] indicating spatial variability in redox conditions. Chromium is present mainly as Cr(III), suggesting limited mobility under prevailing environmental conditions. Overall, the results indicate a multi-source contamination regime shaped by overlapping upstream and local anthropogenic influences. This integrated approach improves understanding of metal behavior in transboundary river systems and provides a scientific basis for future monitoring and management efforts.</p></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"90 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147760548","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":"Relationship Between Metal Contamination and Altered Morphology of the Carapace and Chelipeds of the Crab Neohelice granulata in the Bahía Blanca Estuary (Argentina)","authors":"Nicolás Eduardo Tamburi,&nbsp;Eros David Uranga,&nbsp;Natalia Sol Buzzi","doi":"10.1007/s00244-026-01198-1","DOIUrl":"10.1007/s00244-026-01198-1","url":null,"abstract":"<div><p>The accumulation of metals in estuarine environments represents potential threats to both aquatic ecosystems and human health, highlighting the need for reliable in situ biomarkers of contamination. In the burrowing crab <i>Neohelice granulata</i> (Brachyura, Varunidae), previous studies have shown that biochemical markers may be influenced by seasonal fluctuations, limiting their usefulness for assessing spatial patterns of metal exposure. Recently, morphological variation among organisms has been proposed as a biomarker of environmental stress. Building on this framework, the present study aimed to evaluate whether metal contamination is associated with morphological changes in <i>N. granulata</i> populations from different sites of the Bahía Blanca estuary, Argentina. Concentrations of Cd, Cr, Cu, Fe, Pb, and Zn were measured in sediments and crab hepatopancreas, and their relationship with carapace and chelipeds morphology were analyzed by traditional and geometric morphometric approaches. Results revealed similar spatial patterns of metal loads in sediments and crab hepatopancreas, reflecting differences in anthropogenic impacts among sites. Moreover, significant morphological differences in carapaces were detected among crab populations, consistent with the observed gradient of metal contamination. These findings suggest that metal exposure may be associated with the morphological variation in <i>N. granulata</i> and highlight its potential use as a biomarker of environmental stress in estuarine crabs. Finally, geometric morphometrics of the carapace proved more effective than traditional chelipeds morphometrics in distinguishing crabs’ populations exposed to different levels of metal contamination.</p></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"90 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147760652","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":"Distribution and Occurrence of Microplastics in Foliar Deposition Across Tree Species in Lahore","authors":"Muhammad Shahid,&nbsp;Sidra Farooq,&nbsp;Rahib Hussain,&nbsp;Tahir Sattar,&nbsp;Abdul Qadir","doi":"10.1007/s00244-026-01192-7","DOIUrl":"10.1007/s00244-026-01192-7","url":null,"abstract":"<div><p>Despite global concern over microplastic (MP) pollution, only a few studies have systematically evaluated the deposition and retention of atmospheric MP on urban tree foliage at the city scale, particularly in densely populated regions of South Asia. Here, the study present the first comprehensive assessment of foliar MP deposition in Lahore, Pakistan, examining the influence of leaf surface morphology and canopy height across 15 plant species at 44 locations along a major urban corridor. The leaves of the selected tree species were identified for smooth, leathery, hairy, and glossy surfaces, and the presence of trichomes (hair-like structures) was taken into account. Microplastic particle concentration on leaves varied between 0.93 n/cm² to 9.23 n/cm²; the highest MPs were quantified on the <i>Morus alba</i> leaves (i.e., 9.23 n/cm²), and the lowest were noted on <i>Lagerstroemia indica</i> leaves (i.e., 0.93 n/cm²). Morphologically, the highest number of MPs (4.8 n/cm²) was adhered to the hairy surface leaves (<i>n</i> = 9), followed by smooth surface leaves (3.8 n/cm²) (<i>n</i> = 10), glossy surfaces (2.7 n/cm²) (<i>n</i> = 13), and the lowest was on the leathery surface leaves, i.e., 2.6 n/cm² (<i>n</i> = 12), and were not statistically different. The spectral analysis confirmed that fibers of polyethylene terephthalate (61.25%) were the dominant polymer, followed by polyphenylene sulfide (17.67%) and aramid polymer (10.43%). An inverse relationship of MPs with the height where leaves were sampled, signifying lesser deposition above 1 m. There have been other studies within cities, and other publications have noted the influence of the tree and leaf morphology. Lower heights in the canopy are closer to ground-level emissions source or they accumulate microplastic particles that leach (wash off) from the upper canopy. Among all the plant species, <i>Morus alba</i> (<i>n</i> = 5) are most suitable species having complex venation, waxy, and hairy leaf morphology that can enhance biomonitoring and potentially mitigate airborne plastic pollution in rapidly growing cities.</p></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"90 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147687868","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":"Roadkill: An Opportunistic Strategy to Track PFAS in Venomous Snakes in a South African Urban Environment","authors":"John A. Bowden,&nbsp;Lauren Blackman,&nbsp;Qaim Mehdi,&nbsp;Hannes Botha,&nbsp;Nick Evans,&nbsp;Marc S. Humphries,&nbsp;Joe Aufmuth","doi":"10.1007/s00244-026-01191-8","DOIUrl":"10.1007/s00244-026-01191-8","url":null,"abstract":"<div><p>Per- and polyfluoroalkyl substances (PFAS) are an emerging contaminant globally, with recent attention regarding their presence in South Africa; however, to date, most studies have focused on their presence and impact on aquatic systems. Few sentinels exist capable of defining the presence and role of PFAS in urban environments. Here, we have demonstrated the use of an opportunistic sampling strategy (e.g., roadkill), as a means to obtain specimens capable of defining the potential urban burden of PFAS. Within many urban environments in South Africa, snakes have become widespread, due to the abundance of food and shelter. Employing the roadkill sampling strategy, the livers of three species of apex venomous snakes, black mamba <i>(</i>BM, <i>Dendroaspis polylepis</i>, <i>n</i> = 28), eastern green mamba (<i>Dendroaspis angusticeps</i>, <i>n</i> = 5), and Mozambique spitting cobra (<i>Naja mossambica</i>, <i>n</i> = 6), were sampled. The snakes were then monitored for 30 PFAS in and around the urban center of Durban, South Africa, using liquid chromatography-tandem mass spectrometry. Overall, nine PFAS were quantified across the snakes sampled, dominated by long chain species, along with the presence of an emerging class of replacement PFAS, 9-chlorohexadecafluoro-3-oxanonane-1-sulfonate (6:2 Cl-PFESA). This study reports some of the highest ∑PFAS documented in South African biota at 1084 ng/g dry weight (dw; median ∑PFAS of 511 ng/g dw for BM). While there are obvious caveats to utilizing roadkill for PFAS monitoring, these opportunistic throw-away samples could become useful for tracking the fate of PFAS in threatened or dangerous species, especially within urban environments. Further, these urban sentinels can provide data for a current research gap (terrestrial fate and transport) and offer a glimpse into potential human exposure risks in regions where urban pollution is a growing concern.</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":"90 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147637702","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":"Flood Frequency and Duration Drive the Aquatic-Terrestrial Pesticide Transfer to Riparian Root-Zone Soil: A Mesocosm Study","authors":"Franziska Fiolka,&nbsp;Alessandro Manfrin,&nbsp;Franziska Middendorf,&nbsp;Stephane Mutel,&nbsp;Collins Ogbeide,&nbsp;María José Gormaz-Aravena,&nbsp;Miyako Molly Briggs,&nbsp;Jakob Wolfram,&nbsp;Clara Mendoza-Lera,&nbsp;Ralf Schulz","doi":"10.1007/s00244-026-01190-9","DOIUrl":"10.1007/s00244-026-01190-9","url":null,"abstract":"<div><p>The aquatic-terrestrial transition areas, riparian zones, recognized as biodiversity hotspots, are increasingly subjected to various stressors, including chemical contaminants such as pesticides. These compounds can be transported into the riparian zone, from surrounding agricultural fields, e.g., via surface runoff, but also from the aquatic environments, e.g. during flooding events. However, little is known about how flood frequency and duration affect this aquatic-terrestrial transfer. To investigate the flood-mediated pesticide transport, we conducted an experiment in 16 flow-through unit mesocosms, each unit containing a stream supplied with water from an agriculturally influenced river, and an adjacent riparian area. We simulated flooding events with varying duration of three, seven and fourteen days, repeated four times between May through September. We sampled river water every week and riparian root-zone soil 24 h after each flooding event and analysed organic pesticides using high-performance liquid chromatography coupled with tandem mass spectrometry via electrospray ionization. We found that six pesticides were detected exclusively in riparian root-zone soil following four repeated flooding events. Our findings indicate that both longer flood durations and repeated flooding events tend to increase the total concentration of pesticides in the riparian root-zone soil. These results demonstrate that flooding promotes the movement of pesticides from streams into adjacent riparian areas. As flood frequency and intensity are expected to increase due to climate change, the significance of this transport pathway is likely to increase, with potential consequences for riparian biodiversity and habitat quality.</p></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"90 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00244-026-01190-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147632184","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":"Occurrence, Particle–Water Partitioning, and Ecological Risk of Traditional and Emerging Organophosphorus Esters and Organophosphine Oxides in Urban Waters of Shanghai, China","authors":"Yan Shi,&nbsp;Yang Cheng,&nbsp;Le Guo,&nbsp;Long Chen,&nbsp;Ying Yang,&nbsp;Huajun Zhen,&nbsp;Guangli Xiu","doi":"10.1007/s00244-026-01187-4","DOIUrl":"10.1007/s00244-026-01187-4","url":null,"abstract":"<div><p>Organophosphorus esters (OPEs) and organophosphine oxides (OPOs) are two major classes of organophosphorus compounds that have been commonly applied as plasticizers, flame retardants and lubricants, and are frequently detected in aquatic environments. In recent years, several emerging compounds from both classes have been identified. However, their occurrence, particle–water partitioning, and ecological risks in aquatic environments remain poorly understood. Because suspended particulate matter (SPM) plays a critical role in the transport, phase distribution, and ecological exposure of hydrophobic contaminants, surface water and SPM were simultaneously collected at 27 sites along the Huangpu River and its tributaries. Fourteen OPEs and three OPOs, including the emerging compounds bis(2-ethylhexyl) phenyl phosphate (BEHPP), tributylphosphine oxide (TBPO), and ethyldiphenylphosphine oxide (EDPPO), were analyzed using solid-phase extraction and high-resolution mass spectrometry. Results showed that tris(2-chloroisopropyl) phosphate (TCIPP, 280.4 ± 126.5 ng/L), triphenylphosphine oxide (TPPO, 209.4 ± 192.0 ng/L), and triethyl phosphate (TEP, 163.5 ± 63.8 ng/L) dominated in surface water, while tris-iso-butyl phosphate (TiBP, 203.7 ± 130.1 ng/g), TCIPP (174.3 ± 174.6 ng/g), tris(2-butoxyethyl) phosphate (TBOEP, 66.2 ± 66.2 ng/g) and 2-ethylhexyl diphenyl phosphate (EHDPP, 62.2 ± 44.7 ng/g) prevailed in SPM. Additionally, emerging substances such as BEHPP, TBPO and EDPPO were detected in all surface water samples at 0.9 ± 0.7, 39.5 ± 19.8, and 0.8 ± 0.3 ng/L, respectively. BEHPP and TBPO were also widely detected in SPM samples at 40.1 ± 22.1 and 16.1 ± 34.7 ng/g, respectively. Particle–water partitioning of OPEs and OPOs was influenced, at least partially, by their hydrophobicity. Risk assessment results indicated low ecological risks for OPEs and OPOs in surface water. In contrast, medium to high risks in SPM particularly from traditional compounds (TiBP, TBOEP, TCIPP and EHDPP) and emerging BEHPP warrant further attention.</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":"90 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147589555","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":"Chemical Characterization of Trace Elements in PM2.5 and PM10 and Their Source Apportionment by PMF Modelling with Associated Health Risk Assessment in the Aravalli Region, India","authors":"Prity S. Pippal,&nbsp;Rajesh Kumar,&nbsp;Atar Singh,&nbsp;Paulraj Rajamani,&nbsp;Anshika Kushwaha,&nbsp;Narpat Surela,&nbsp;Ramesh Kumar","doi":"10.1007/s00244-026-01189-2","DOIUrl":"10.1007/s00244-026-01189-2","url":null,"abstract":"<div><p>This study assessed particulate matter to quantify trace elements, and source apportionment using the positive matrix factorization (PMF) receptor model, enrichment factor (EF), and health risk assessment of toxic trace elements. The mean 24-h gravimetrically measured PM_2.5 and PM₁₀ concentrations were 66.87 µg/m³ and 121.44 µg/m³, respectively, exceeding the standard limits. The 22 trace elements detected by inductively coupled plasma optical emission spectroscopy (ICP-OES) accounted for 1.12% of the total PM, raising health concerns. The percent contribution of sources by the PMF model for PM_2.5 and PM₁₀ is approximately 27% and 40% crustal emissions, 30% and 29% road dust, 18% and 15% secondary aerosols, 13% and 7% vehicular emissions, 6% and 4% industries &amp; mining activities, and 6% and 5% marine sources, respectively. Although crustal emissions and road dust appeared to be significant contributors, as indicated by the combined evaluation of EF and PMF results, these factors were found to be mixtures of resuspended dust and emissions, rather than purely crustal material, due to the strong dominance of fine particles from anthropogenic activities and secondary processes. Further, the observed carcinogenic risk (CR) values were higher for elements Cr &lt; As &lt; Cd &lt; Ni &lt; Pb in PM_2.5 and PM₁₀ for children and adults, respectively, than the USEPA limits of 1 × 10⁻⁶ to 1 × 10^–4. Children were more susceptible to health risks than adults, with higher hazard quotients (HQs) and CR values for PM_2.5, making it more potent than PM₁₀. This study advances current understanding by coupling size-resolved trace element chemistry with receptor-based source apportionment and quantitative health risk assessment for the understudied Aravalli foothill urban environment. This also provides a comprehensive understanding of trace elements contributing to particulate matter and the associated health risks, with crucial insights for air quality management and public health.</p></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"90 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147589581","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":"Polycyclic Aromatic Hydrocarbons (PAHs) in Marine Sediments: Distribution, Sources, and Biological Risks in the Habitat of Resident Killer Whales and their Prey in British Columbia, Canada","authors":"Joseph J. Kim,&nbsp;Peter S. Ross,&nbsp;Kelsey Delisle,&nbsp;Tanya M. Brown,&nbsp;Farida Bishay,&nbsp;Marie Noël","doi":"10.1007/s00244-026-01185-6","DOIUrl":"10.1007/s00244-026-01185-6","url":null,"abstract":"<div><p>Polycyclic aromatic hydrocarbons (PAHs), a class of persistent, bioaccumulative, and toxic contaminants, represent a threat to at-risk populations of Resident killer whales (<i>Orcinus orca</i>) in the northeastern Pacific Ocean, and their primary prey, Chinook salmon (<i>Oncorhynchus tshawytscha</i>). Concentrations of 76 PAHs in subtidal surface sediments (1 to 435 m depth) from 98 sites along the coast of British Columbia (BC), Canada, were analyzed to evaluate their distribution patterns and potential sources. A subset of parent and alkylated PAHs, including the 16 priority PAHs, was evaluated to assess biological risks to Resident killer whales and Chinook salmon. Principal component analysis (PCA) revealed site-specific PAH patterns in sediments, characterized by heavier parent PAHs (4–6 aromatic rings) and lighter alkylated PAHs (2–3 aromatic rings). Polycyclic aromatic hydrocarbon distribution and profiles were strongly influenced by octanol-water partition coefficients (Log Kow) and total organic carbon (TOC) (<i>p</i> &lt; 0.001), with water depth exhibiting a gradient from heavier PAHs in shallow sediments to lighter PAHs in deeper sediments (<i>p</i> &lt; 0.001). Hotspots of pyrogenic and petrogenic sources were identified along the BC coast, with most areas being contaminated by pyrogenic inputs primarily associated with combustion of lignite and bituminous coal, and petrogenic inputs mainly associated with coal and diesel oil. Biological risk, based on sediment quality guidelines (SQGs), risk quotients (RQs), and toxic equivalents (TEQs), suggested varying degrees of direct and indirect impacts for Chinook salmon in nearshore Conservation Units (CUs), as well as for Resident killer whales within their Critical Habitats. Among Resident killer whale Critical Habitats, the greatest impacts were expected in the Southern Resident Killer Whale (SRKW) Critical Habitat around southern Vancouver Island, from both potential direct and indirect effects, with direct impacts from alkylated PAHs requiring special consideration. These findings highlight the urgent need for targeted management actions to reduce PAH emissions from both point and non-point sources in coastal environments to support conservation efforts for Chinook salmon and Resident killer whales. In particular, for Resident killer whales, such efforts should be prioritized within the SRKW Critical Habitat surrounding southern Vancouver Island.</p></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"90 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00244-026-01185-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147509089","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":"Accumulation of Potentially Toxic Elements and Bioindicator Potential of Necrophagous Flies in Exposed Municipal Wastes","authors":"Kittikhun Moophayak,&nbsp;Chutarat Saengkul,&nbsp;Puntaree Taeprayoon,&nbsp;John Pichtel,&nbsp;Siwaporn Premmanee,&nbsp;Chonthicha Thumjan,&nbsp;Chalida Thala,&nbsp;Piyathap Avakul,&nbsp;Weeradej Meeinkuirt","doi":"10.1007/s00244-026-01186-5","DOIUrl":"10.1007/s00244-026-01186-5","url":null,"abstract":"<div><p>To assess fly diversity, abundance, and accumulation of potentially toxic elements (PTEs) in tissue, necrophagous fly communities were collected from open waste bins and landfills in western Thailand. Highest species richness was recorded in Mae Pa and Panlan, each with 11 species; however, Mae Pa exhibited a higher Margalef’s richness index and significantly greater abundance (4,874 individuals) compared to Panlan (314 individuals). Khaothong showed lowest richness with 5 species and a moderate abundance of 944 individuals. Several fly species accumulated considerable PTEs from municipal wastes. Cadmium and zinc were among the most enriched of the PTEs, showing high <i>CF</i> values in the study locations ࣧ 15.25 at Ban Makluea, 15.82 at Pha De and 30.43 at Khaothong, respectively. Principal component analysis indicated that <i>Atherigona</i> spp. and <i>Musca sorbens</i> were highly correlated with cadmium, aluminum, iron, lead and chromium, particularly in Pha De and Mae Pa, respectively. <i>Musca sorbens</i> accumulated the highest concentrations of Cd (278 mg kg⁻¹) and Zn (101 g kg⁻¹) in Pha De. This study suggests that <i>Musca</i> species of necrophagous flies, despite the need of further research for confirmation, are effective as potential bioindicators of Cd and Zn, especially in polluted environments.</p></div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"90 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13009087/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147502944","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":"Atmospheric Dry and Lead Deposition in an Arid Mexican City: Legacy of Smelting and Leaded Gasoline","authors":"Martin F. Soto-Jiménez,&nbsp;Shuang Zhao,&nbsp;Elena Jaffer,&nbsp;Cynthia L. Jocobi-Aguilar","doi":"10.1007/s00244-026-01184-7","DOIUrl":"10.1007/s00244-026-01184-7","url":null,"abstract":"<div>\u0000 \u0000 <p>Torreón, located in central-northern Mexico, is a semiarid, dusty city affected by particulate matter and lead (Pb) pollution. This pollution is largely driven by the Met-Mex Peñoles smelting and refining complex (operating since 1901), one of the largest Ag–Cd–Pb–Zn facilities in the world, as well as historical leaded gasoline combustion (1920s–1997). In this study, we focus on atmospheric dry and lead deposition measurements in the urban area in Torreón. Atmospheric dry deposits (ADD) were collected under typical climatic conditions between January and May in 2015 and 2017. Atmospheric dry deposition fluxes (ADDF, g m² d⁻¹) and Pb dry deposition fluxes (Pb-DDF, mg m² d⁻¹) were quantified using high-resolution magnetic sector mass spectrometry. ADDF ranged from 1.0 to 1.7 g m² d⁻¹ near the smelter stack during windy periods to below 0.1 g m⁻² d⁻¹ at more distant locations (&gt; 3 km) during clean days. Corresponding Pb-DDF varied from &lt; 0.1 to 0.82–1.16 mg m² d⁻¹. Two dust storm events in April 2017, typical of the region, caused ADDF and Pb-loads to increase by 82 times and 67 times, respectively, compared to days with good air quality. ADDF and Pb-DDF decreased with distance from the smelting complex, with the highest concentrations found within 1 km to the west and east of the smelter, along the Sierra de las Noas hill. This hill acts as a physical barrier, restricting the dispersion of metal-rich particles, thus exacerbating urban pollution. Metal-rich particles from legacy smelter operations and leaded gasoline remain in Torreón’s urban environment.</p>\u0000 </div>","PeriodicalId":8377,"journal":{"name":"Archives of Environmental Contamination and Toxicology","volume":"90 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00244-026-01184-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147441899","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}