Chemosphere最新文献_第6页

Biomonitoring toxic and essential element accumulation in trout in the as pontes mine pit lake (NW Spain)

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2025-02-18 DOI: 10.1016/j.chemosphere.2025.144212

Marta López-Alonso , Marta Miranda , Inmaculada Orjales , Víctor Pereira , Belén Larrán , Ruth Rodríguez-Bermúdez , Cathaysa Veiras , Álvaro Robles , David Bravo , Ricardo Juncosa , Carlos Herrero-Latorre

This study investigated the accumulation of toxic and essential elements in trout from a pit lake situated in the surroundings of the abandoned As Pontes de García Rodríguez lignite mine (NW Spain). The element concentrations were compared with those measured in fish from upstream of the River Eume and from a local fish farm. Liver and muscle samples from fish captured in the lake (n = 16), river (n = 14) and fish farm (n = 10) captured in March–April 2022 were acid digested and analyzed by ICP-MS. The mining activity in As Pontes was found to have significantly impacted the aquatic ecosystem. Concentrations of Cd, Ni, Co, and Cu in the livers of the lake fish were significantly higher than in the livers of the other groups of fish, probably due to run-off from the spoil heap reaching the lake. Similarly, higher concentrations of Al, Pb, and Hg were observed in the river trout, associated with coal combustion at a near thermal power plant. Despite these variations, toxic and essential elements in both the pit lake and river remained low, within water quality standards, and do not pose an immediate threat to aquatic life. Concentrations of the metals in the muscle of wild fish, although higher than in farmed fish, were within EU limits. The study findings highlight the value of fish as indicators of environmental exposure and emphasize the ongoing need to monitor the pit lake to assess the long-term impacts of mining activities on aquatic health. Examination of liver tissue proved to be particularly useful in the assessments, providing a precise reflection of metal exposure and serving as a valuable means of evaluating environmental contamination and ecosystem health.

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引用次数: 0

Phthalate exposure profiles during baby delivery and their association with reproductive hormone changes and newborn outcomes

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2025-02-18 DOI: 10.1016/j.chemosphere.2025.144208

Khelfi Abderrezak , Fesraoui Chakib , Fara Iyad , Aksas Kahina , Yargui Lyece , Makrelouf Mohamed , Cherifi Mohamed , Tayebi Youcef , Benghanem Lounas , Dammene-Debbih Amel , Madaci Fadila , Azzouz Mohamed

Background

Phthalates are organic compounds and emerging pollutants of health concern. Exposure to phthalates may have an impact on hormone physiology, especially during pregnancy, as it represents a period of heightened vulnerability to disruptions for the newborn.

Objective

The aim of this study was to identify perinatal exposure profiles to phthalates in pregnant women living in Algiers and to explore associations between umbilical cord blood levels of phthalates and reproductive hormone concentrations. The aim also extends to explore the link that could exist between potential sources and the exposure profiles to phthalates.

Methods

This descriptive study was carried out on 154 couples of women-newborns. After gathering necessary information, umbilical cord blood samples were collected. Reproductive hormones were measured by electrochemiluminescence, while phthalate metabolites were detected using LC-MS/MS.

Results

The results showed that MEHP, MEP, and MnBP were detected in 97.4%, 74.7%, and 53.9% of samples. Mean concentrations were 18.680, 11.805, and 7.151 ng/mL for MEHP, MEP, and MnBP, respectively. High concentrations of MEP and MEHP were associated with low umbilical cord levels of testosterone, progesterone, and estradiol. A positive and meaningful association between MnBP and LH levels was found as well. The results indicated that MEHP was associated with changes in the anogenital distance (AGD) in both male and female newborns, as positive significant correlation has been found between MEHP levels and female AGD as well as an inverse correlation between the same metabolite and male AGD. The evaluation of exposure sources revealed a significant association between the consumption of bottled water and levels of MnBP.

Conclusions

In this study, phthalates were associated with altered levels of reproductive hormones in umbilical cord plasma. These changes may have adverse effects on children development. Results also suggest that the consumption of bottled water may impact the newborns’ endocrine integrity.

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引用次数: 0

Acclimation and recovery dynamics of behavioral and coloration responses of a common fish (Squalius cephalus) to paracetamol exposure

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2025-02-18 DOI: 10.1016/j.chemosphere.2025.144225

Léa Lorrain-Soligon , Alexis Golven , Simon Agostini , Alexis Millot , Alexandre Bauer , Thierry Rigaud , Beatriz Decencière , Carine Puppo , Aurélie Goutte

Freshwater ecosystems are increasingly exposed to pharmaceutical contamination, impacting non-target species. Concentrations can vary over time and location, allowing for potential acclimation or recovery effects. Additionally, parasites might interfere with the absorption and adverse outcomes pathways of pollutants. We examined the combined effects of paracetamol and parasite on the behavior and coloration of the European chub (Squalius cephalus), a ubiquitous fish species, from natural populations. Fish were exposed in mesocosms to acute doses of paracetamol (16 μg g⁻¹ once a day over two days), followed by lower doses during a long-term exposure (1.6 μg g⁻¹ once a week over three weeks), followed by a three-week recovery phase. Acute exposure induced marginal decreases in behavioral activity, and changes in dorsal brightness, hue and UV luminance. Interestingly, the long-term phase alone did not yield notable results on behavior and coloration. However, some effects of the acute exposure persisted during the long-term phase, highlighting that the expression of biological responses may be delayed in relation to past high exposure. Parasitism did not attenuate acute impacts, suggesting parasites may not help mitigate effects of paracetamol on behavior and coloration, but alone increased activity levels slightly. No effects of pollutant exposure, either of the acute or long-term phase, were observed after a recovery phase, indicating ability for recovery dynamics. Overall, our findings emphasize that pollutants effects can be highly transient, with rapid recovery when pollutant exposure ceased. Considering different exposure phases is crucial when assessing the ecological consequences of environmental contaminants.

{"title":"Acclimation and recovery dynamics of behavioral and coloration responses of a common fish (Squalius cephalus) to paracetamol exposure","authors":"Léa Lorrain-Soligon , Alexis Golven , Simon Agostini , Alexis Millot , Alexandre Bauer , Thierry Rigaud , Beatriz Decencière , Carine Puppo , Aurélie Goutte","doi":"10.1016/j.chemosphere.2025.144225","DOIUrl":"10.1016/j.chemosphere.2025.144225","url":null,"abstract":"<div><div>Freshwater ecosystems are increasingly exposed to pharmaceutical contamination, impacting non-target species. Concentrations can vary over time and location, allowing for potential acclimation or recovery effects. Additionally, parasites might interfere with the absorption and adverse outcomes pathways of pollutants. We examined the combined effects of paracetamol and parasite on the behavior and coloration of the European chub (<em>Squalius cephalus</em>), a ubiquitous fish species, from natural populations. Fish were exposed in mesocosms to acute doses of paracetamol (16 μg g<sup>−1</sup> once a day over two days), followed by lower doses during a long-term exposure (1.6 μg g<sup>−1</sup> once a week over three weeks), followed by a three-week recovery phase. Acute exposure induced marginal decreases in behavioral activity, and changes in dorsal brightness, hue and UV luminance. Interestingly, the long-term phase alone did not yield notable results on behavior and coloration. However, some effects of the acute exposure persisted during the long-term phase, highlighting that the expression of biological responses may be delayed in relation to past high exposure. Parasitism did not attenuate acute impacts, suggesting parasites may not help mitigate effects of paracetamol on behavior and coloration, but alone increased activity levels slightly. No effects of pollutant exposure, either of the acute or long-term phase, were observed after a recovery phase, indicating ability for recovery dynamics. Overall, our findings emphasize that pollutants effects can be highly transient, with rapid recovery when pollutant exposure ceased. Considering different exposure phases is crucial when assessing the ecological consequences of environmental contaminants.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"374 ","pages":"Article 144225"},"PeriodicalIF":8.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Pellets of apex predators for monitoring metals and metalloids contamination in farmlands

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2025-02-18 DOI: 10.1016/j.chemosphere.2025.144231

Piotr Zduniak , Joanna Wojciechowska , Zbigniew Kasprzykowski , Izabela Komorowicz

Using fertilizers and plant protection products in agriculture is a primary source of metal and metalloid contamination in agricultural landscapes. Monitoring of these areas is especially crucial for the production of healthy food. In this paper, we analyzed the occurrence of trace elements commonly considered as indicators of environmental pollution in the pellets of the apex predator of farmland, representing the group of birds of prey whose pellets have not been studied in this respect so far. We used 60 pellets of the Eurasian Kestrel (Falco tinnunculus) from 20 sites, to investigate the pollutants present in the extensive agricultural landscape of eastern Poland. Further, we developed a strategy for homogenizing and digestion of the samples and proposed the sample preparation protocol of them. We determined the optimal working conditions for using inductively coupled plasma mass spectrometry (ICP-MS) to measure the content of elements identified as environmental pollutants, such as As, Cd, Cr, Cu, Mn, Ni, Pb, Se, and Zn. The obtained level of the investigated elements indicates low pollution of the farmland in eastern Poland by Cd, Cr, Ni, Pb, Se, and Zn and slightly elevated concentrations of Cu and Mn resulting from using artificial fertilizers and plant protection products. This study has shown that bird pellet analysis is a practical, non-invasive tool for studying the pollution of the environment with chemical elements. Studying bird pellets in the context of farmland contamination provides insights into the level of environmental pollution and the potential impact of agricultural activities on ecosystems.

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引用次数: 0

Effects of elevated atmospheric carbon dioxide to Microcystis aeruginosa under different forms of phosphorus sources 不同磷源形式下大气中二氧化碳浓度升高对铜绿微囊藻的影响

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2025-02-18 DOI: 10.1016/j.chemosphere.2025.144210

Juanjuan Zhang , Wenxuan Xu , Qingquan Zhang , Lin Deng , Fuxun Ai , Ying Yin , Hongyan Guo

Human activities have led to an increase in atmospheric carbon dioxide (CO₂) concentration, which can enhance the flux of CO₂ from air to water, thus impacting algal growth. Phosphorus (P) is a key factor influencing the formation of cyanobacteria blooms. Nutrient utilization is closely related to carbon (C) metabolism, but the effects of elevated CO₂ on microalgae under different P sources are rarely studied. In this study, we investigated the growth and physiological and biochemical responses of Microcystis aeruginosa (M. aeruginosa) under ambient (400 ppm) and elevated (550 ppm) CO₂ levels in P-free, dissolved inorganic P (DIP, 1 mg P/L), and dissolved organic P (DOP, 1 mg P/L) groups. The bioavailability of DIP to M. aeruginosa was greater than that of DOP, and elevated CO₂ increased both the uptake of DIP and DOP. Elevated CO₂ promoted the growth (increasing by 9.0%–14.2%), photosynthesis, and CO₂ fixation of M. aeruginosa under different P sources (P-free, DIP, DOP), and increased total microcystin-LR content (increasing by 5.4%–12.6%), which increased the risk of microcystin-LR release into the environment. Furthermore, elevated CO₂ aggravated the stress effect of DOP, leading to an increase in protein content and proportion of humic acid substances in the extracellular polymeric substances. Our study provides a theoretical basis for understanding the impact of elevated CO₂ on cyanobacteria bloom under different P sources, and provides a new insight for the control of eutrophic waters under the background of climate change.

{"title":"Effects of elevated atmospheric carbon dioxide to Microcystis aeruginosa under different forms of phosphorus sources","authors":"Juanjuan Zhang , Wenxuan Xu , Qingquan Zhang , Lin Deng , Fuxun Ai , Ying Yin , Hongyan Guo","doi":"10.1016/j.chemosphere.2025.144210","DOIUrl":"10.1016/j.chemosphere.2025.144210","url":null,"abstract":"<div><div>Human activities have led to an increase in atmospheric carbon dioxide (CO<sub>2</sub>) concentration, which can enhance the flux of CO<sub>2</sub> from air to water, thus impacting algal growth. Phosphorus (P) is a key factor influencing the formation of cyanobacteria blooms. Nutrient utilization is closely related to carbon (C) metabolism, but the effects of elevated CO<sub>2</sub> on microalgae under different P sources are rarely studied. In this study, we investigated the growth and physiological and biochemical responses of <em>Microcystis aeruginosa</em> (<em>M. aeruginosa</em>) under ambient (400 ppm) and elevated (550 ppm) CO<sub>2</sub> levels in P-free, dissolved inorganic P (DIP, 1 mg P/L), and dissolved organic P (DOP, 1 mg P/L) groups. The bioavailability of DIP to <em>M. aeruginosa</em> was greater than that of DOP, and elevated CO<sub>2</sub> increased both the uptake of DIP and DOP. Elevated CO<sub>2</sub> promoted the growth (increasing by 9.0%–14.2%), photosynthesis, and CO<sub>2</sub> fixation of <em>M. aeruginosa</em> under different P sources (P-free, DIP, DOP), and increased total microcystin-LR content (increasing by 5.4%–12.6%), which increased the risk of microcystin-LR release into the environment. Furthermore, elevated CO<sub>2</sub> aggravated the stress effect of DOP, leading to an increase in protein content and proportion of humic acid substances in the extracellular polymeric substances. Our study provides a theoretical basis for understanding the impact of elevated CO<sub>2</sub> on cyanobacteria bloom under different P sources, and provides a new insight for the control of eutrophic waters under the background of climate change.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"374 ","pages":"Article 144210"},"PeriodicalIF":8.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Radionuclide retention by portlandite in the presence of isosaccharinate and phthalate and possible role of ternary complexes

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2025-02-17 DOI: 10.1016/j.chemosphere.2025.144224

Oscar Almendros-Ginestà , M. Angeles Clavero-Sánchez , Miguel García-Gutiérrez , Tiziana Missana

This research evaluates the retention mechanisms for various radionuclides (RN) specifically, ⁶³Ni, ²³³U, ¹⁵²Eu and ²³⁸Pu, on portlandite, in the presence of two organic ligands (ORG): isosaccharinate (ISA) and phthalate (PHTH).

The potential negative impact of ORG on RN uptake by the solid phase may arise from two main mechanisms that were analysed: (a) the competitive adsorption of ORG or (b) the formation of RN-ORG complexes in the aqueous phase.

The sorption of ISA on portlandite exhibited a maximum log(K_d) value of 2.1 mL g⁻¹, decreasing when the total ISA concentration exceeded 1·10⁻³ M. No sorption of PHTH was detected. Aqueous RN speciation, calculated using the Thermochimie 12a thermodynamic database, revealed formation of RN-ORG complexes only in the presence of ISA.

The observed RN sorption behavior in the presence of ISA or PHTH aligned with these findings. The calculated sorption reduction factors (SRFs) were significantly higher for ISA compared to PHTH, particularly for ¹⁵²Eu and ²³⁸Pu. However, the detrimental effect of ISA on RN retention was orders of magnitude lower than the predicted by geochemical modelling and, sometimes, the presence of ORG (especially at low concentrations) increased RN sorption, suggesting the formation of RN + ORG + portlandite ternary complexes.

{"title":"Radionuclide retention by portlandite in the presence of isosaccharinate and phthalate and possible role of ternary complexes","authors":"Oscar Almendros-Ginestà , M. Angeles Clavero-Sánchez , Miguel García-Gutiérrez , Tiziana Missana","doi":"10.1016/j.chemosphere.2025.144224","DOIUrl":"10.1016/j.chemosphere.2025.144224","url":null,"abstract":"<div><div>This research evaluates the retention mechanisms for various radionuclides (RN) specifically, <sup>63</sup>Ni, <sup>233</sup>U, <sup>152</sup>Eu and <sup>238</sup>Pu, on portlandite, in the presence of two organic ligands (ORG): isosaccharinate (ISA) and phthalate (PHTH).</div><div>The potential negative impact of ORG on RN uptake by the solid phase may arise from two main mechanisms that were analysed: (a) the competitive adsorption of ORG or (b) the formation of RN-ORG complexes in the aqueous phase.</div><div>The sorption of ISA on portlandite exhibited a maximum log(K<sub>d</sub>) value of 2.1 mL g<sup>−1</sup>, decreasing when the total ISA concentration exceeded 1·10<sup>−3</sup> M. No sorption of PHTH was detected. Aqueous RN speciation, calculated using the Thermochimie 12a thermodynamic database, revealed formation of RN-ORG complexes only in the presence of ISA.</div><div>The observed RN sorption behavior in the presence of ISA or PHTH aligned with these findings. The calculated sorption reduction factors (SRFs) were significantly higher for ISA compared to PHTH, particularly for <sup>152</sup>Eu and <sup>238</sup>Pu. However, the detrimental effect of ISA on RN retention was orders of magnitude lower than the predicted by geochemical modelling and, sometimes, the presence of ORG (especially at low concentrations) increased RN sorption, suggesting the formation of RN + ORG + portlandite ternary complexes.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"374 ","pages":"Article 144224"},"PeriodicalIF":8.1,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143429457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Assessment of exposure to Phenanthrene: Insight in to the in vivo, in vitro, and in silico techniques

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2025-02-17 DOI: 10.1016/j.chemosphere.2025.144207

Sadegh Farhadian , Rahmat-allah Fatahian-dehkordi , Mohammad javad-Yadanpanah , Najimeh Farokhvand

Organic pollutants have become a serious environmental concern due to improper use of agricultural chemicals, mining activities, and large volumes of urban waste discharge. Organic pollutants have emerged as a significant ecological issue because of the misuse of agricultural chemicals, mining operations, and the substantial discharge of urban waste. Phenanthrene (PHE), a polycyclic aromatic hydrocarbon (PAH), has various industrial applications such as dyes, plastics, pesticides, explosives, and drugs. In this study, to estimate the Human serum albumin (HAS) binding and liver cytotoxicity of PHE, the in vivo, in vitro, and in silico investigation was applied. The results show that the interaction between PHE and HSA can be done, spontaneously. The in vivo study demonstrated that both low- and high doses of PAH led to a decrease in hepatocytes and sinusoid volumes and an upward trend in blood vessels compared to the control group. The total measured biochemical factors except for HDL showed an increase in both doses of PAH compared to controls. The serum level of HDL in Phe-treated rats was markedly decreased compared to control rats.

{"title":"Assessment of exposure to Phenanthrene: Insight in to the in vivo, in vitro, and in silico techniques","authors":"Sadegh Farhadian , Rahmat-allah Fatahian-dehkordi , Mohammad javad-Yadanpanah , Najimeh Farokhvand","doi":"10.1016/j.chemosphere.2025.144207","DOIUrl":"10.1016/j.chemosphere.2025.144207","url":null,"abstract":"<div><div>Organic pollutants have become a serious environmental concern due to improper use of agricultural chemicals, mining activities, and large volumes of urban waste discharge. Organic pollutants have emerged as a significant ecological issue because of the misuse of agricultural chemicals, mining operations, and the substantial discharge of urban waste. Phenanthrene (PHE), a polycyclic aromatic hydrocarbon (PAH), has various industrial applications such as dyes, plastics, pesticides, explosives, and drugs. In this study, to estimate the Human serum albumin (HAS) binding and liver cytotoxicity of PHE, the in vivo, in vitro, and in silico investigation was applied. The results show that the interaction between PHE and HSA can be done, spontaneously. The in vivo study demonstrated that both low- and high doses of PAH led to a decrease in hepatocytes and sinusoid volumes and an upward trend in blood vessels compared to the control group. The total measured biochemical factors except for HDL showed an increase in both doses of PAH compared to controls. The serum level of HDL in Phe-treated rats was markedly decreased compared to control rats.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"374 ","pages":"Article 144207"},"PeriodicalIF":8.1,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143429458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Effects of dietary sources and personal care products on paraben exposure in young Korean adults: A crossover intervention study

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2025-02-17 DOI: 10.1016/j.chemosphere.2025.144209

Aram Lee , Sohyeon Choi , Na-Youn Park , Younglim Kho , Sungkyoon Kim , Kyungho Choi , Hyo-Bang Moon , Jeongim Park

Parabens including methyl-(MeP), ethyl-(EtP), and propyl-(PrP) parabens, are widely used as antimicrobial preservatives in foods, cosmetics, and personal care products (CPCPs), and drugs. However, studies evaluating the contribution of exposure sources to paraben exposure are limited, and most focus primarily on CPCPs. This study conducted a crossover intervention to assess the contributions of foods and CPCPs to paraben exposure among young Korean adults. Twenty-seven college students participated in a 6-day intervention. They used preservative-free CPCPs throughout the study and were served a 'diet with paraben-free sauces' on days 3–4, followed by a 'diet with paraben-containing sauces' on days 5–6. Urine samples collected at each intervention point were analyzed for nine parabens, including MeP, EtP, and normal propyl-paraben (nPrP), using HPLC-MS/MS. Before the intervention, the geometric mean urinary concentrations of MeP, EtP, and nPrP were 6.05, 76.9, and 0.52 ng/mL, respectively–approximately 3 to 14 times higher than levels reported in other countries. No significant changes in urinary paraben concentrations were observed after the CPCPs-only intervention. However, following the diet with paraben-free sauces, urinary EtP levels significantly decreased by 79.7% (95% CI -89.2, −61.8). After diet with paraben-containing sauces, urinary EtP and MeP levels increased significantly (EtP 2830% (1310–5990); MeP 84.4% (25.7, 170)). This study highlights the substantial impact of diet on paraben exposure, especially EtP, suggesting that dietary sources play a significant role.

{"title":"Effects of dietary sources and personal care products on paraben exposure in young Korean adults: A crossover intervention study","authors":"Aram Lee , Sohyeon Choi , Na-Youn Park , Younglim Kho , Sungkyoon Kim , Kyungho Choi , Hyo-Bang Moon , Jeongim Park","doi":"10.1016/j.chemosphere.2025.144209","DOIUrl":"10.1016/j.chemosphere.2025.144209","url":null,"abstract":"<div><div>Parabens including methyl-(MeP), ethyl-(EtP), and propyl-(PrP) parabens, are widely used as antimicrobial preservatives in foods, cosmetics, and personal care products (CPCPs), and drugs. However, studies evaluating the contribution of exposure sources to paraben exposure are limited, and most focus primarily on CPCPs. This study conducted a crossover intervention to assess the contributions of foods and CPCPs to paraben exposure among young Korean adults. Twenty-seven college students participated in a 6-day intervention. They used preservative-free CPCPs throughout the study and were served a 'diet with paraben-free sauces' on days 3–4, followed by a 'diet with paraben-containing sauces' on days 5–6. Urine samples collected at each intervention point were analyzed for nine parabens, including MeP, EtP, and normal propyl-paraben (nPrP), using HPLC-MS/MS. Before the intervention, the geometric mean urinary concentrations of MeP, EtP, and nPrP were 6.05, 76.9, and 0.52 ng/mL, respectively–approximately 3 to 14 times higher than levels reported in other countries. No significant changes in urinary paraben concentrations were observed after the CPCPs-only intervention. However, following the diet with paraben-free sauces, urinary EtP levels significantly decreased by 79.7% (95% CI -89.2, −61.8). After diet with paraben-containing sauces, urinary EtP and MeP levels increased significantly (EtP 2830% (1310–5990); MeP 84.4% (25.7, 170)). This study highlights the substantial impact of diet on paraben exposure, especially EtP, suggesting that dietary sources play a significant role.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"374 ","pages":"Article 144209"},"PeriodicalIF":8.1,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143429460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Laser-ablation vs. bulk tissue ICP-MS for conifer tissue elemental analysis

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2025-02-16 DOI: 10.1016/j.chemosphere.2025.144200

Jasmine M. Williams , Sean C. Thomas

Laser ablation inductively coupled plasma mass spectrometry (LA ICP-MS) has emerged as a robust tool for directly measuring trace elements in solid, intact samples. Laser ablation requires minimal sample preparation, whereas more conventional bulk sample analysis entails preliminary size reduction and acid digestion, and hence risks sample contamination and volatilization losses. LA ICP-MS may allow for rapid determination of elemental constitution in plants at low detection limits; however, application of LA ICP-MS on plant tissues is challenged by sample heterogeneity, as well as the lack of recognized standards for calibration and criteria for sample preparation. We analyzed needle samples from an adult jack pine (Pinus banksiana L.) tree through LA ICP-MS using a widely available NIST SRM 610 quartz calibration standard, with ⁴³Ca as an internal standard element measured by electron probe microanalysis. LA ICP-MS analyses were run on intact needle samples and on pulverized, homogenized and pelletized samples (n = 21), and compared to needles dried, ground, and analyzed in triplicate with aqua regia acid digestion and conventional ICP-MS. Overall, the LA ICP-MS measures on intact pine samples accurately predicted the chemical composition of pine needle tissue obtained by the bulk sample acid-digestion and ICP-MS method for most elements, while preliminary pulverizing and pelletizing did not result in greater accuracy or reduced bias. LA ICP-MS analysis of many plant nutrients (³¹P, ²⁴Mg, ⁶⁶Zn) from both intact and pelletized tree needle samples matched the values obtained from acid-digestion ICP-MS most closely, while measures of less-stable metals (such as ¹⁴⁰Ce, ¹³⁹La, and ⁵⁷Fe) deviated more from acid-digested samples. Values of ³⁹K estimates varied between methods, as storage of ³⁹K is preferentially located in needle mesophyll layers beyond laser depths. Large deviations were found for volatile elements, with significantly lower ²⁰⁸Pb concentrations measured by LA ICP-MS than acid-digested samples. We conclude that LA ICP-MS of intact tissues is a viable tool for accurate, non-destructive analysis for most elements and is particularly suitable for analysis of small samples and for volatile elements not amenable to conventional methods.

{"title":"Laser-ablation vs. bulk tissue ICP-MS for conifer tissue elemental analysis","authors":"Jasmine M. Williams , Sean C. Thomas","doi":"10.1016/j.chemosphere.2025.144200","DOIUrl":"10.1016/j.chemosphere.2025.144200","url":null,"abstract":"<div><div>Laser ablation inductively coupled plasma mass spectrometry (LA ICP-MS) has emerged as a robust tool for directly measuring trace elements in solid, intact samples. Laser ablation requires minimal sample preparation, whereas more conventional bulk sample analysis entails preliminary size reduction and acid digestion, and hence risks sample contamination and volatilization losses. LA ICP-MS may allow for rapid determination of elemental constitution in plants at low detection limits; however, application of LA ICP-MS on plant tissues is challenged by sample heterogeneity, as well as the lack of recognized standards for calibration and criteria for sample preparation. We analyzed needle samples from an adult jack pine (<em>Pinus banksiana</em> L.) tree through LA ICP-MS using a widely available NIST SRM 610 quartz calibration standard, with <sup>43</sup>Ca as an internal standard element measured by electron probe microanalysis. LA ICP-MS analyses were run on intact needle samples and on pulverized, homogenized and pelletized samples (n = 21), and compared to needles dried, ground, and analyzed in triplicate with aqua regia acid digestion and conventional ICP-MS. Overall, the LA ICP-MS measures on intact pine samples accurately predicted the chemical composition of pine needle tissue obtained by the bulk sample acid-digestion and ICP-MS method for most elements, while preliminary pulverizing and pelletizing did not result in greater accuracy or reduced bias. LA ICP-MS analysis of many plant nutrients (<sup>31</sup>P, <sup>24</sup>Mg, <sup>66</sup>Zn) from both intact and pelletized tree needle samples matched the values obtained from acid-digestion ICP-MS most closely, while measures of less-stable metals (such as <sup>140</sup>Ce, <sup>139</sup>La, and <sup>57</sup>Fe) deviated more from acid-digested samples. Values of <sup>39</sup>K estimates varied between methods, as storage of <sup>39</sup>K is preferentially located in needle mesophyll layers beyond laser depths. Large deviations were found for volatile elements, with significantly lower <sup>208</sup>Pb concentrations measured by LA ICP-MS than acid-digested samples. We conclude that LA ICP-MS of intact tissues is a viable tool for accurate, non-destructive analysis for most elements and is particularly suitable for analysis of small samples and for volatile elements not amenable to conventional methods.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"374 ","pages":"Article 144200"},"PeriodicalIF":8.1,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143422669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Exploring per- and polyfluoroalkyl substance distribution in Arctic wastewater treatment lagoons and natural wetlands: First record in Nunavik, Canada

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2025-02-16 DOI: 10.1016/j.chemosphere.2025.144186

Hamid Boleydei , Caroline Huot , Céline Vaneeckhaute

Per- and polyfluoroalkyl substances (PFAS), as emerging and bioaccumulative contaminants, are widely present in water and wastewater systems. Municipal wastewater effluents serve as pathways for PFAS to enter aquatic environments. This study monitors the PFAS in wastewater treatment lagoons, nearby wetlands and bay in a Canadian Arctic community. Eight out of the 40 targeted PFAS were detected in samples collected from raw wastewater, wastewater treatment lagoons, natural wetlands, and Ungava bay. The total PFAS concentrations were in the ranges of 45.9–56.1 ng/L in wastewater treatment lagoons, 36.6–70.8 ng/L in natural wetlands and measured at 7.3 ng/L in the bay. The most prevalent and frequently detected PFAS were 6:2 FTS, PFHxA, and PFNA. At all sites, short-chain PFAS concentrations surpassed long-chain PFAS. Short-chain PFAS peaked at 267.01 ng/L (79.74%), while long-chain PFAS totaled 67.83 ng/L (20.26%). The estimated yearly mass flow rate of total PFAS into the environment through lagoon effluent was 2.33 g/year. The conducted environmental risk assessment for both the effluent of the wastewater treatment lagoons and the three downstream natural wetlands suggests that the risks associated with all PFAS under study posed minimal ecological risk, though long-term evaluation is needed. In conclusion, the findings of this research provide further information on PFAS pollution through wastewater in Arctic regions and may, as such, guide the development of comprehensive regulations to safeguard both human health and the environment, thereby mitigating potential future risks.

{"title":"Exploring per- and polyfluoroalkyl substance distribution in Arctic wastewater treatment lagoons and natural wetlands: First record in Nunavik, Canada","authors":"Hamid Boleydei , Caroline Huot , Céline Vaneeckhaute","doi":"10.1016/j.chemosphere.2025.144186","DOIUrl":"10.1016/j.chemosphere.2025.144186","url":null,"abstract":"<div><div>Per- and polyfluoroalkyl substances (PFAS), as emerging and bioaccumulative contaminants, are widely present in water and wastewater systems. Municipal wastewater effluents serve as pathways for PFAS to enter aquatic environments. This study monitors the PFAS in wastewater treatment lagoons, nearby wetlands and bay in a Canadian Arctic community. Eight out of the 40 targeted PFAS were detected in samples collected from raw wastewater, wastewater treatment lagoons, natural wetlands, and Ungava bay. The total PFAS concentrations were in the ranges of 45.9–56.1 ng/L in wastewater treatment lagoons, 36.6–70.8 ng/L in natural wetlands and measured at 7.3 ng/L in the bay. The most prevalent and frequently detected PFAS were 6:2 FTS, PFHxA, and PFNA. At all sites, short-chain PFAS concentrations surpassed long-chain PFAS. Short-chain PFAS peaked at 267.01 ng/L (79.74%), while long-chain PFAS totaled 67.83 ng/L (20.26%). The estimated yearly mass flow rate of total PFAS into the environment through lagoon effluent was 2.33 g/year. The conducted environmental risk assessment for both the effluent of the wastewater treatment lagoons and the three downstream natural wetlands suggests that the risks associated with all PFAS under study posed minimal ecological risk, though long-term evaluation is needed. In conclusion, the findings of this research provide further information on PFAS pollution through wastewater in Arctic regions and may, as such, guide the development of comprehensive regulations to safeguard both human health and the environment, thereby mitigating potential future risks.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"374 ","pages":"Article 144186"},"PeriodicalIF":8.1,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143422670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0