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Passos RS, Davenport A, Busquets R, Selden C, Silva LB, Baptista JS, Barceló D, Campos LC. Microplastics and nanoplastics in haemodialysis waters: Emerging threats to be in our radar. Environ Toxicol Pharmacol 2023; 102:104253. [PMID: 37604358 DOI: 10.1016/j.etap.2023.104253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/07/2023] [Accepted: 08/18/2023] [Indexed: 08/23/2023]
Abstract
Microplastics are present in the environment, in drinking water, in human blood and there is evidence of nanoplastics in tap water. The objective of this work was to analyze the possibility of hemodialysis patients being contaminated by micro and nanoplastics (MNPs) during dialysis treatment. The motivation for this investigation is the fact that hemodialysis patients use about 300-600 L of drinking water per week, which may be contaminated by MNPs. A literature review, a field investigation in a London hospital and an estimation of MNPs intake in patients were carried out. The results showed potential points of risk of contamination of patients by MNPs in hemodialysis. It was also estimated that for a filtration efficiency of 99 % for MNPs, the amount of microplastics that can penetrate the kidneys of patients is 0.0021-3768 particles/week. The assessment concludes that hemodialysis patients are at high risk of MNP contamination.
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Affiliation(s)
- Robson S Passos
- Environmental Management Coordination and Environmental Technology and Bioprocesses Research Group, Federal Institute of Education, Science and Technology of Pernambuco, Av. Prof. Luís Freire, 500 - Cidade Universitária, Recife 50740-545, Brazil; Department of Civil, Environmental and Geomatic Engineering, University College London, London WC1E 6BT, United Kingdom.
| | - Andrew Davenport
- UCL Department of Renal Medicine, Royal Free Hospital, University College London, London NW3 2PF, United Kingdom
| | - Rosa Busquets
- Department of Civil, Environmental and Geomatic Engineering, University College London, London WC1E 6BT, United Kingdom; Department of Chemical and Pharmaceutical Sciences, Kingston University London, Penrhyn road, Kingston upon Thames KT1 2EE, United Kingdom
| | - Clare Selden
- Institute for Liver & Digestive Health, Royal Free Campus, UCL Medical School, Rowland Hill St, London NW3 2PF, United Kingdom
| | - Luiz B Silva
- Labour Analysis Laboratory, Federal University of Paraíba, João Pessoa Campus I, Cidade Universitaria, 58051-900, Brazil
| | - J Santos Baptista
- Associated Laboratory for Energy, Transports and Aeronautics (LAETA/PROA), Faculty of Engineering of University of Porto - FEUP, Rua Dr Roberto Frias, s/n, 4200-465 Porto, Portugal
| | - Damià Barceló
- Water and Soil Quality Research Group, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona 1826, Barcelona 08034, Spain
| | - Luiza C Campos
- Department of Civil, Environmental and Geomatic Engineering, University College London, London WC1E 6BT, United Kingdom.
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Khairul Hasni NA, Anual ZF, Rashid SA, Syed Abu Thahir S, Veloo Y, Fang KS, Mazeli MI. Occurrence of endocrine disruptors in Malaysia's water systems: A scoping review. Environ Pollut 2023; 324:121095. [PMID: 36682614 DOI: 10.1016/j.envpol.2023.121095] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/16/2022] [Accepted: 01/14/2023] [Indexed: 06/17/2023]
Abstract
Contamination of water systems with endocrine disrupting chemicals (EDCs) is becoming a major public health concern due to their toxicity and ubiquity. The intrusion of EDCs into water sources and drinking water has been associated with various adverse health effects on humans. However, there is no comprehensive overview of the occurrence of EDCs in Malaysia's water systems. This report aims to describe the occurrence of EDCs and their locations. Literature search was conducted electronically in two databases (PubMed and Scopus). A total of 41 peer-reviewed articles published between January 2000 and May 2021 were selected. Most of the articles dealt with pharmaceuticals (16), followed by pesticides (7), hormones (7), mixed compounds (7), and plasticisers (4). Most studies (40/41) were conducted in Peninsular Malaysia, with 60.9% in the central region and almost half (48.8%) in the Selangor State. Only one study was conducted in the northern region and East Malaysia. The Langat River, the Klang River, and the Selangor River were among the most frequently studied EDC-contaminated surface waters, while the Pahang River and the Skudai River had the highest concentrations of some of the listed compounds. Most of the risk assessments resulted in a hazard quotient (HQ) and a risk quotient (RQ) < 1, indicating negligible health risk, except for ciprofloxacin and dexamethasone, which had a potential human health risk (HQHH) > 1 in the Selangor River. An RQ > 1 for combined pharmaceuticals was found in Putrajaya tap water. Overall, this work provides a comprehensive overview of the occurrence of EDCs in Malaysia's water systems. The findings from this review can be used to mitigate risks and strengthen legislation and policies for safer drinking water.
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Affiliation(s)
- Nurul Amalina Khairul Hasni
- Environmental Health Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health, Malaysia.
| | - Zurahanim Fasha Anual
- Environmental Health Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health, Malaysia
| | - Siti Aishah Rashid
- Environmental Health Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health, Malaysia
| | - Syahidiah Syed Abu Thahir
- Environmental Health Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health, Malaysia
| | - Yuvaneswary Veloo
- Environmental Health Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health, Malaysia
| | - Khor Sok Fang
- Environmental Health Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health, Malaysia
| | - Mohamad Iqbal Mazeli
- Environmental Health Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health, Malaysia
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Bernard L, Masse M, Boeuf B, Chennell P, Decaudin B, Durand N, Genay S, Lambert C, Le Basle Y, Moreau E, Pinguet J, Ponsonnaille V, Richard D, Saturnin N, Storme L, Sautou V. Medical devices used in NICU: The main source of plasticisers' exposure of newborns. Sci Total Environ 2023; 858:159994. [PMID: 36368381 DOI: 10.1016/j.scitotenv.2022.159994] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 10/06/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
Phthalates and other plasticisers are extensively used in medical devices (MD) from which they can leach out and lead to potential multiple problems for the patients. This exposure is a major issue because it is associated with reproductive and neurodevelopment disorders. The Neonatal Intensive Care Units (NICU) population is at high risk due to the daily intensive medical interventions, the reduced ability of newborns to remove these contaminants and their higher sensitivity to endocrine disruptors. We conducted a multicentric biomonitoring study to assess and compare the urinary levels of DEHP (di-(2-ethylhexyl)phthalate), DEHTP (di-(2-ethylhexyl)terephthalate) and TEHTM (tri-(2-ethylhexyl)trimellitate) metabolites as biomarkers of this exposure during and after the newborns' stay in NICU. Daily urinary samples were collected in NICU and at discharge from the hospital for each patient. MD sources and exposure factors were also investigated. 508 urinary samples from 97 patients enrolled in centres 1 and 2 (C1/C2) were collected. The exposure of newborns to DEHP was greater than that of DEHTP and TEHTM, with a median concentration of DEHP metabolites (C1:195.63 ng/mL;C2:450.87 ng/mL) respectively 5 to 10 times higher and 57 to 228 times higher than the median concentrations of DEHTP and TEHTM metabolites. The urinary concentrations of DEHP and TEHTM metabolites were significantly lower at discharge than in NICU, with a 18-and 35-fold decrease for DEHP and a 4 and 8-fold decrease for TEHTM, respectively for C1 and C2, but were similar for DEHTP metabolites. MD used for respiratory assistance, infusion therapy,enteral nutrition and transfusion were the main sources of exposure. Smaller gestational age and body weight significantly increased the newborns' exposure. The elevated levels of DEHP metabolites in NICU patients are still alarming. Additional efforts are necessary to promote its substitution in MD by possibly safer alternatives such as TEHTM and DEHTP, particularly when used for the care of newborns.
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Affiliation(s)
- Lise Bernard
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, CHU Clermont Ferrand, ICCF, F-63000 Clermont-Ferrand, France.
| | - Morgane Masse
- Univ. Lille, CHU Lille, ULR 7365-GRITA-Groupe de Recherche sur les Formes Injectables et les Technologies Associées, F-59000 Lille, France
| | - Benoît Boeuf
- CHU Clermont-Ferrand, Service Réanimation pédiatrique et médecine néonatale, Clermont-Ferrand, France
| | - Philip Chennell
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, CHU Clermont Ferrand, ICCF, F-63000 Clermont-Ferrand, France
| | - Bertrand Decaudin
- Univ. Lille, CHU Lille, ULR 7365-GRITA-Groupe de Recherche sur les Formes Injectables et les Technologies Associées, F-59000 Lille, France
| | - Nelly Durand
- CIC 1405, Unité CRECHE, INSERM, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France
| | - Stéphanie Genay
- Univ. Lille, CHU Lille, ULR 7365-GRITA-Groupe de Recherche sur les Formes Injectables et les Technologies Associées, F-59000 Lille, France
| | - Céline Lambert
- CHU Clermont-Ferrand, Direction de la Recherche Clinique et Innovation, Clermont-Ferrand, France
| | - Yoann Le Basle
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, CHU Clermont Ferrand, ICCF, F-63000 Clermont-Ferrand, France
| | - Emmanuel Moreau
- Université Clermont-Auvergne, INSERM U1240 Imagerie Moléculaire et Stratégies Théranostiques, F-63000 Clermont Ferrand, France
| | - Jérémy Pinguet
- CHU Clermont-Ferrand, Université Clermont-Auvergne, service de Pharmacologie médicale, UMR INSERM 1107 Neuro-Dol, F-63000 Clermont-Ferrand, France
| | - Varlane Ponsonnaille
- CHU Clermont-Ferrand, Service Réanimation pédiatrique et médecine néonatale, Clermont-Ferrand, France
| | - Damien Richard
- CHU Clermont-Ferrand, Université Clermont-Auvergne, service de Pharmacologie médicale, UMR INSERM 1107 Neuro-Dol, F-63000 Clermont-Ferrand, France
| | - Nathalie Saturnin
- CHU Clermont-Ferrand, Service Réanimation pédiatrique et médecine néonatale, Clermont-Ferrand, France
| | - Laurent Storme
- CHRU Lille, Service de Médecine Néonatale, F-59000 Lille, France; Université Lille I, UPRES EA 4489, Laboratoire de Périnatalité et croissance, F-59000 Lille, France
| | - Valérie Sautou
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, CHU Clermont Ferrand, ICCF, F-63000 Clermont-Ferrand, France
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Preece AS, Shu H, Knutz M, Krais AM, Bornehag CG. Phthalate levels in prenatal and postnatal bedroom dust in the SELMA study. Environ Res 2022; 212:113429. [PMID: 35533715 DOI: 10.1016/j.envres.2022.113429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 04/18/2022] [Accepted: 05/02/2022] [Indexed: 06/14/2023]
Abstract
Phthalates are common in polyvinyl chloride (PVC) plastics and numerous consumer goods in our homes from which they can migrate and adhere to indoor dust particles. It is known that indoor dust exposure contribute to human phthalate intake; however, there is a lack of large studies with a repeated-measure design investigating how phthalate levels in indoor dust may vary over time in people's homes. This study investigated levels of seven phthalates and one alternative plasticiser di-iso-nonyl-cyclohexane-di-carboxylate (DiNCH) in bedroom dust collected prenatally around week 25 during pregnancy and postnatally at six months after birth, from 496 Swedish homes. Prenatal and postnatal phthalate levels were compared using correlation and season-adjusted general linear regression models. Over the nine-month period, levels of six out of seven phthalates were associated as indicated by a positive Pearson correlation (0.18 < r < 0.50, P < .001) and Lin's concordance correlation between matched prenatal and postnatal dust samples. Compared to prenatal levels, the season-adjusted postnatal levels decreased for five phthalates, whilst di-ethyl-hexyl phthalate (DEHP), di-2-propylheptyl phthalate (DPHP) and DiNCH increased. The results suggest that families with higher phthalate levels in bedroom dust during pregnancy are likely to remain among those with higher levels in the infancy period. However, all average phthalate levels changed over this specific nine-month period suggesting that available phthalate sources or their use were altered between the dust collections. Changes in home characteristics, family lifestyle, and phthalate replacement trends may contribute to explain the differences.
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Affiliation(s)
- Anna-Sofia Preece
- Division of Public Health Sciences, Institution of Health Sciences, Karlstad University, SE-651 88, Karlstad, Sweden
| | - Huan Shu
- Division of Public Health Sciences, Institution of Health Sciences, Karlstad University, SE-651 88, Karlstad, Sweden
| | - Malin Knutz
- Division of Public Health Sciences, Institution of Health Sciences, Karlstad University, SE-651 88, Karlstad, Sweden
| | - Annette M Krais
- Division of Occupational and Environmental Medicine, Institution of Laboratory Medicine, Lund University, SE-221 85, Lund, Sweden
| | - Carl-Gustaf Bornehag
- Division of Public Health Sciences, Institution of Health Sciences, Karlstad University, SE-651 88, Karlstad, Sweden; Icahn School of Medicine at Mount Sinai, New York, USA.
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López M, Reche C, Pérez-Albaladejo E, Porte C, Balasch A, Monfort E, Eljarrat E, Viana M. E-waste dismantling as a source of personal exposure and environmental release of fine and ultrafine particles. Sci Total Environ 2022; 833:154871. [PMID: 35364180 DOI: 10.1016/j.scitotenv.2022.154871] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/01/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
Electronic waste (WEEE; from TV screens to electric toothbrushes) is one of the fastest growing waste streams in the world. Prior to recycling, e-waste components (metals, wood, glass, etc.) are processed by shredding, grinding and chainsaw cutting. These activities generate fine and ultrafine particle emissions, containing metals as well as organics (e.g., flame retardants), which have high potential for human health impacts as well as for environmental release. In this work, release of fine and ultrafine particles, and their exposure impacts, was assessed in an e-waste recycling facility under real-world operating conditions. Parameters monitored were black carbon, particle mass concentrations, ultrafine particles, and aerosol morphology and chemical composition. Potential health impacts were assessed in terms of cytotoxicity (cell viability) and oxidative stress (ROS) on <2 μm particles collected in liquid suspension. Environmental release of WEEE aerosols was evidenced by the higher particle concentrations monitored outside the facility when compared to the urban background (43 vs.11 μgPM2.5/m3, respectively, or 2.4 vs. 0.2 μgCa/m3). Inside the facility, concentrations were higher in the top than on the ground floor (PM2.5 = 147 vs. 78 μg/m3, N = 15.4 ∗ 104 vs. 8.7 ∗ 104/cm3, BC = 12.4 vs. 7.2 μg/m3). Ventilation was a key driver of human exposure, in combination with particle emissions. Key chemical tracers were Ca (from plastic fillers) and Fe (from wiring and other metal components). Y, Zr, Cd, Pb, P and Bi were markers of cathode TV recycling, and Li and Cr of grinding activities. While aerosols did not evidence cytotoxic effects, ROS generation was detected in 4 out of the 12 samples collected, associated to the ultrafine fraction. We conclude on the need for studies on aerosol emissions from WEEE facilities, especially in Europe, due to their demonstrable environmental and human health impacts and the rapidly growing generation of this type of waste.
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Affiliation(s)
- M López
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18, 08034 Barcelona, Spain; Barcelona University, Chemistry Faculty, C/ de Martí i Franquès, 1-11, 08028 Barcelona, Spain.
| | - C Reche
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18, 08034 Barcelona, Spain
| | - E Pérez-Albaladejo
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18, 08034 Barcelona, Spain
| | - C Porte
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18, 08034 Barcelona, Spain
| | - A Balasch
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18, 08034 Barcelona, Spain; Barcelona University, Chemistry Faculty, C/ de Martí i Franquès, 1-11, 08028 Barcelona, Spain
| | - E Monfort
- Institute of Ceramic Technology (ITC)-AICE - Universitat Jaume I, Campus Universitario Riu Sec, Av. Vicent Sos Baynat s/n, 12006 Castellón, Spain
| | - E Eljarrat
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18, 08034 Barcelona, Spain
| | - M Viana
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18, 08034 Barcelona, Spain
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Pereyra-Camacho MA, Balderas-Hernández VE, De Leon-Rodriguez A. Biodegradation of diisononyl phthalate by a consortium of saline soil bacteria: optimisation and kinetic characterisation. Appl Microbiol Biotechnol 2021; 105:3369-3380. [PMID: 33797572 DOI: 10.1007/s00253-021-11255-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 03/17/2021] [Accepted: 03/23/2021] [Indexed: 12/14/2022]
Abstract
Diisononyl phthalate (DINP) is one of plasticisers most employed in the production of plastic materials and belongs to the most important environmental contaminants. In this work, a consortium of saline soil bacterial (SSB) capable of degrading DINP is presented. The genera of SSB-consortium were Serratia sp., Methylobacillus sp., Achromobacter sp., Pseudomonas sp., Stenotrophomonas sp., Methyloversatilis sp., Delftia sp. and Brevundimonas sp. Response surface methodology (RSM) study was employed to optimise and evaluate the culture conditions to improve the biodegradation of DINP. The optimal conditions were a pH 7.0, 31 °C and an initial DINP concentration of 500 mg L-1, resulting in almost complete biodegradation (99%) in 168 h. DINP degradation followed a first-order kinetic model, and the half-life was 12.76 h. During the biodegradation of DINP, 4-derived compounds were identified: monoisononyl phthalate, methyl nonyl phthalate, iso-nonanol and dimethyl phthalate. The metabolite profiling indicated that DINP was degraded through simultaneous pathways of de-esterification and β-oxidation. Results suggest that the SSB-consortium could be useful for efficient biodegradation of the DINP-contaminated environments. KEY POINTS: • DINP degradation is mediated by de-esterification and β-oxidation processes. • Temperature and the concentration of the substrate are key factors for DINP biodegradation • The SSB-consortium has the ability to biodegrade 99% of DINP (500 mg L-1).
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Affiliation(s)
- Marco A Pereyra-Camacho
- IPICyT, Instituto Potosino de Investigación Científica y Tecnológica A.C., Camino a la Presa San José No. 2055, Lomas 4a sección, San Luis Potosí, San Luis Potosí, 78216, México
| | - Victor E Balderas-Hernández
- IPICyT, Instituto Potosino de Investigación Científica y Tecnológica A.C., Camino a la Presa San José No. 2055, Lomas 4a sección, San Luis Potosí, San Luis Potosí, 78216, México
| | - Antonio De Leon-Rodriguez
- IPICyT, Instituto Potosino de Investigación Científica y Tecnológica A.C., Camino a la Presa San José No. 2055, Lomas 4a sección, San Luis Potosí, San Luis Potosí, 78216, México.
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Notario-Pérez F, Galante J, Martín-Illana A, Cazorla-Luna R, Sarmento B, Ruiz-Caro R, das Neves J, Veiga MD. Development of pH-sensitive vaginal films based on methacrylate copolymers for topical HIV-1 pre-exposure prophylaxis. Acta Biomater 2021; 121:316-327. [PMID: 33333257 DOI: 10.1016/j.actbio.2020.12.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/05/2020] [Accepted: 12/08/2020] [Indexed: 01/09/2023]
Abstract
Interest is growing in "smart" vaginal microbicides as a strategy to protect women from sexual transmission of human immunodeficiency virus (HIV). The concept is based on the development of products featuring low drug release in acidic media such as vaginal fluid but switch to a fast release profile when the medium becomes neutral or slightly alkaline. This mimics the surge in pH occurring in the vagina after sexual intercourse due to the seminal fluid. Semen is the main vehicle for HIV-1, and increasing antiretroviral drug levels in the vagina upon ejaculation may contribute to enhanced protection against viral sexual transmission. This work explores the use of different pharmaceutical-grade methacrylic acid-based polymers (EudragitⓇ RL, RS, L and S) for developing vaginal films allowing the pH-dependant release of the antiretroviral drug tenofovir (TFV). EudragitⓇ L 100 and EudragitⓇ S 100, containing triethyl citrate as plasticiser, proved to be suitable for manufacturing films with optimal dual in vitro drug-release behaviour. TFV-release can be sustained for several days after film administration and all the drug is released in a few hours in conditions simulating ejaculation. The films' mechanical properties were also deemed suitable for comfortable vaginal administration. Two optimized films were further assessed using HEC-1-A and Ca Ski cell monolayer models and were found to possess favourable drug permeability profiles and drug levels associated to cell monolayer as compared to free TFV. Overall, pH-dependant films containing tenofovir may constitute promising candidates for "smart" vaginal microbicides to protect women from sexual HIV transmission.
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Celis-Hernandez O, Cundy AB, Croudace IW, Ward RD, Busquets R, Wilkinson JL. Assessing the role of the "estuarine filter" for emerging contaminants: pharmaceuticals, perfluoroalkyl compounds and plasticisers in sediment cores from two contrasting systems in the southern U.K. Water Res 2021; 189:116610. [PMID: 33278720 DOI: 10.1016/j.watres.2020.116610] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 11/01/2020] [Accepted: 11/05/2020] [Indexed: 06/12/2023]
Abstract
The environmental occurrence, fate and ecotoxicity of emerging contaminants (ECs) has been the subject of increasing research, policy and public concern over the past two decades. While a wide range of publications have examined the environmental persistence and sediment/soil interactions of ECs following their discharge into aquatic environments, the extent to which ECs are sequestered in estuarine sediments, and the impact of this on their environmental persistence and supply to the ocean, in comparison remains unclear. This Article examines the environmental concentrations of seven, relatively water-soluble and environmentally mobile, ECs (including pharmaceuticals, perfluoroalkyl compounds, and plasticisers) in dated intertidal saltmarsh cores from two contrasting estuarine sites in the southern U.K. (one heavily urbanised/industrial, the other non-urbanised). Mean sediment EC concentrations are similar in both estuarine systems (in the range 0.1 (acetaminophen) to 17 (4-hydroxyacetophenone) ng/g dry weight). Despite their variable reported Log Kow values (from ca. 0.5 to > 7), the ECs are all apparently mobile in the marsh systems studied, and where subsurface concentration maxima are present these most likely relate to local flushing or diffusive processes and cannot be clearly linked to likely input trends or changes in sediment geochemistry (including sedimentary organic carbon content). The "estuarine filter" here, at least with respect to intertidal saltmarsh sediments, shows reduced potential to sequester the seven ECs examined and mediate their supply to coastal and shelf environments.
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Affiliation(s)
- Omar Celis-Hernandez
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Estación el Carmen, Campeche, C.P. 24157, Ciudad del Carmen, México; Dirección de Cátedras CONACYT. Av. Insurgentes Sur 1582, Alcaldía Benito Juárez, C.P. 03940, Ciudad de México.; School of Ocean and Earth Science, University of Southampton, National Oceanography Centre (Southampton), European Way, Southampton, SO14 3ZH, U.K
| | - Andrew B Cundy
- School of Ocean and Earth Science, University of Southampton, National Oceanography Centre (Southampton), European Way, Southampton, SO14 3ZH, U.K..
| | - Ian W Croudace
- School of Ocean and Earth Science, University of Southampton, National Oceanography Centre (Southampton), European Way, Southampton, SO14 3ZH, U.K
| | - Raymond D Ward
- Centre for Aquatic Environments, University of Brighton, Cockcroft Building, Moulsecoomb, Brighton BN2 4GJ, U.K.; Institute of Agriculture and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 5, EE-51014 Tartu, Estonia
| | - Rosa Busquets
- Kingston University London, Faculty of Science, Engineering and Computing, Kingston Upon Thames KT1 2EE, U.K
| | - John L Wilkinson
- Department of Environment and Geography, University of York, Heslington, York, YO10 5NG, U.K
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Schwedler G, Rucic E, Lange R, Conrad A, Koch HM, Pälmke C, Brüning T, Schulz C, Schmied-Tobies MIH, Daniels A, Kolossa-Gehring M. Phthalate metabolites in urine of children and adolescents in Germany. Human biomonitoring results of the German Environmental Survey GerES V, 2014-2017. Int J Hyg Environ Health 2020; 225:113444. [PMID: 32058939 DOI: 10.1016/j.ijheh.2019.113444] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 12/17/2019] [Accepted: 12/20/2019] [Indexed: 01/20/2023]
Abstract
During the population representative German Environmental Survey of Children and Adolescents (GerES V, 2014-2017) 2256 first-morning void urine samples from 3 to 17 years old children and adolescents were analysed for 21 metabolites of 11 different phthalates (di-methyl phthalate (DMP), di-ethyl phthalate (DEP), butylbenzyl phthalate (BBzP), di-iso-butyl phthalate (DiBP), di-n-butyl phthalate (DnBP), di-cyclohexyl phthalate (DCHP), di-n-pentyl phthalate (DnPeP), di-(2-ethylhexyl) phthalate (DEHP), di-iso-nonyl phthalate (DiNP), di-iso-decyl phthalate (DiDP) and di-n-octyl phthalate (DnOP)). Metabolites of DMP, DEP, BBzP, DiBP, DnBP, DEHP, DiNP and DiDP were found in 97%-100% of the participants, DCHP and DnPeP in 6%, and DnOP in none of the urine samples. Geometric means (GM) were highest for metabolites of DiBP (MiBP: 26.1 μg/L), DEP (MEP: 25.8 μg/L), DnBP (MnBP: 20.9 μg/L), and DEHP (cx-MEPP: 11.9 μg/L). For all phthalates but DEP, GMs were consistently higher in the 3-5 years old children than in the 14-17 years old adolescents. For DEHP, the age differences were most pronounced. All detectable phthalate biomarker concentrations were positively associated with the levels of the respective phthalate in house dust. In GerES V we found considerably lower phthalate biomarker levels than in the preceding GerES IV (2003-2006). GMs of biomarker levels in GerES V were only 18% (BBzP), 23% (MnBP), 23% (DEHP), 29% (MiBP) and 57% (DiNP) of those measured a decade earlier in GerES IV. However, some children and adolescents still exceeded health-based guidance values in the current GerES V. 0.38% of the participants had levels of DnBP, 0.08% levels of DEHP and 0.007% levels of DiNP which were higher than the respective health-based guidance values. Accordingly, for these persons an impact on health cannot be excluded with sufficient certainty. The ongoing and substantial exposure of vulnerable children and adolescents to many phthalates confirms the need of a continued monitoring of established phthalates, whether regulated or not, as well as of potential substitutes. With this biomonitoring approach we provide a picture of current individual and cumulative exposure developments and body burdens to phthalates, thus providing support for timely and effective chemicals policies and legislation.
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Affiliation(s)
| | - Enrico Rucic
- German Environment Agency (UBA), Berlin, Germany
| | - Rosa Lange
- German Environment Agency (UBA), Berlin, Germany
| | - André Conrad
- German Environment Agency (UBA), Berlin, Germany
| | - Holger M Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bochum, Germany
| | - Claudia Pälmke
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bochum, Germany
| | - Thomas Brüning
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bochum, Germany
| | | | | | - Anja Daniels
- German Environment Agency (UBA), Berlin, Germany
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10
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Aznar-Alemany Ò, Sala B, Plön S, Bouwman H, Barceló D, Eljarrat E. Halogenated and organophosphorus flame retardants in cetaceans from the southwestern Indian Ocean. Chemosphere 2019; 226:791-799. [PMID: 30965250 DOI: 10.1016/j.chemosphere.2019.03.165] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/04/2019] [Accepted: 03/24/2019] [Indexed: 06/09/2023]
Abstract
PBDEs, HBCD, DBDPE, PBEB and HBB, dechloranes and OPFRs, as well as natural MeO-PBDEs were monitored in muscle tissue of three dolphin species from the southwestern Indian Ocean (Delphinus delphis, Sousa plumbea and Tursiops aduncus) collected between 2012 and 2015. The mean PBDE concentration was 416 ± 333 ng g-1 lw. BDE-47 was found in all samples and was almost half the total PBDE contamination. BDE-209, BDE-100 and BDE-99 were present in ≥85% of the samples. HBCD was detected in just two samples at 20 and 330 ng g-1 lw. PBEB and HBB were not detected, while DBDPE was in all samples but always below its limit of quantification. Dec 602 was the only quantifiable dechlorane at 232 ± 549 ng g-1 lw. Mean OPFR concentration was 10452 ± 11301 ng g-1 lw. TBOEP was found in all samples making up most of the total OPFR contamination. MeO-PBDEs were detected in all samples at 114 ± 137 ng g-1 lw. Data on flame retardants in biota and environmental samples from the southwestern Indian Ocean are scarce and, as a result, comparisons are difficult. However, data from other marine predators in the region, such as penguins, suggest that further studies are needed to determine if these concentrations are the consequence of a high local contamination or widespread thoughout the Indian Ocean.
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Affiliation(s)
- Òscar Aznar-Alemany
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC); Jordi Girona, 18-26, 08034, Barcelona, Spain.
| | - Berta Sala
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC); Jordi Girona, 18-26, 08034, Barcelona, Spain.
| | - Stephanie Plön
- Earth Stewardship Science Research Institute (ESSRI), Nelson Mandela University, Port Elizabeth, 6031, South Africa.
| | - Hindrik Bouwman
- Research Unit: Environmental Sciences and Management, North-West University, Potchefstroom, South Africa.
| | - Damià Barceló
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC); Jordi Girona, 18-26, 08034, Barcelona, Spain; Catalan Institute for Water Research (ICRA), Emili Grahit, 101, 17003, Girona, Spain.
| | - Ethel Eljarrat
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC); Jordi Girona, 18-26, 08034, Barcelona, Spain.
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11
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Velázquez-Gómez M, Hurtado-Fernández E, Lacorte S. Comprehensive method for the analysis of multi-class organic micropollutants in indoor dust. Sci Total Environ 2018; 635:1484-1494. [PMID: 29710670 DOI: 10.1016/j.scitotenv.2018.04.186] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 03/28/2018] [Accepted: 04/13/2018] [Indexed: 06/08/2023]
Abstract
In the last decades, there has been an increasing concern about the human exposure to indoor dust because it has been observed that its contact or ingestion represents an important exposure source to several contaminants. The principal aim of this study was to evaluate the presence of multi pollutants in indoor dust. Therefore, an efficient multi-residue analytical method based on gas chromatography-electron ionisation-tandem mass spectrometry (GC-EI-MS/MS) was developed for the quantitative determination of 59 pollutants in house dust. The studied compounds belong to different families which have been reported as dangerous due to their possible effects for human health (endocrine disruption, neurotoxicity, mucosa-irritating effects, etc.). They are plasticisers, pesticides, flame retardants or polycyclic aromatic hydrocarbons, and reflect compounds used in construction materials, domestic goods or coming from outdoor air accumulation in indoor environments. The optimised methodology was simple, reliable and sensitive and was tested to evaluate the presence of contaminants in house dust samples collected in the area of Barcelona (Spain). Among all compounds studied, 54 contaminants were detected, being phthalates the group of compounds encountered at the highest concentrations, followed by organophosphorus flame retardants and bisphenol A.
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Affiliation(s)
- M Velázquez-Gómez
- Department of Environmental Chemistry, IDAEA-CSIC, C/Jordi Girona 18-26, 08034 Barcelona, Spain
| | - E Hurtado-Fernández
- Department of Environmental Chemistry, IDAEA-CSIC, C/Jordi Girona 18-26, 08034 Barcelona, Spain.
| | - S Lacorte
- Department of Environmental Chemistry, IDAEA-CSIC, C/Jordi Girona 18-26, 08034 Barcelona, Spain
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12
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Wilkinson JL, Swinden J, Hooda PS, Barker J, Barton S. Markers of anthropogenic contamination: A validated method for quantification of pharmaceuticals, illicit drug metabolites, perfluorinated compounds, and plasticisers in sewage treatment effluent and rain runoff. Chemosphere 2016; 159:638-646. [PMID: 27348563 DOI: 10.1016/j.chemosphere.2016.06.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 06/05/2016] [Accepted: 06/09/2016] [Indexed: 06/06/2023]
Abstract
An effective, specific and accurate method is presented for the quantification of 13 markers of anthropogenic contaminants in water using solid phase extraction (SPE) followed by high performance liquid chromatography (HPLC) tandem mass spectrometry (MS/MS). Validation was conducted according to the International Conference on Harmonisation (ICH) guidelines. Method recoveries ranged from 77 to 114% and limits of quantification between 0.75 and 4.91 ng/L. A study was undertaken to quantify the concentrations and loadings of the selected contaminants in 6 sewage treatment works (STW) effluent discharges as well as concentrations in 5 rain-driven street runoffs and field drainages. Detection frequencies in STW effluent ranged from 25% (ethinylestradiol) to 100% (benzoylecgonine, bisphenol-A (BPA), bisphenol-S (BPS) and diclofenac). Average concentrations of detected compounds in STW effluents ranged from 3.62 ng/L (ethinylestradiol) to 210 ng/L (BPA). Levels of perfluorinated compounds (PFCs) perfluorooctanoic acid (PFOA) and perfluorononanoic acid (PFNA) as well as the plasticiser BPA were found in street runoff at maximum levels of 1160 ng/L, 647 ng/L and 2405 ng/L respectively (8.52, 3.09 and 2.7 times more concentrated than maximum levels in STW effluents respectively). Rain-driven street runoff may have an effect on levels of PFCs and plasticisers in receiving rivers and should be further investigated. Together, this method with the 13 selected contaminants enables the quantification of various markers of anthropogenic pollutants: inter alia pharmaceuticals, illicit drugs and their metabolites from humans and improper disposal of drugs, while the plasticisers and perfluorinated compounds may also indicate contamination from industrial and transport activity (street runoff).
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Affiliation(s)
- John L Wilkinson
- School of Natural and Built Environments, Kingston University London, Kingston-upon-Thames, Surrey, United Kingdom.
| | - Julian Swinden
- School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston-upon-Thames, Surrey, United Kingdom
| | - Peter S Hooda
- School of Natural and Built Environments, Kingston University London, Kingston-upon-Thames, Surrey, United Kingdom
| | - James Barker
- School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston-upon-Thames, Surrey, United Kingdom
| | - Stephen Barton
- School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston-upon-Thames, Surrey, United Kingdom
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13
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Carter GD, Jones J, Ketheeswaran M, Shannon J, Singh B, Kearney E, Berry JL. Automated immunoassays for 25-hydroxyvitamin D (25-OHD): do plasticisers interfere? J Steroid Biochem Mol Biol 2015; 148:38-40. [PMID: 25448742 DOI: 10.1016/j.jsbmb.2014.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 11/06/2014] [Accepted: 11/11/2014] [Indexed: 10/24/2022]
Abstract
The international quality assessment scheme for vitamin D metabolites (DEQAS) was established in 1989. The scheme involves the quarterly distribution of 5 serum samples prepared from blood collected in plain plastic bags. Following transfer of the donors to a clinic using different bags, sera were found to contain a contaminant that interfered in both the local LC-MS/MS assay and the NIST reference measurement procedure for 25-OHD. It seemed likely that the contaminant was a substance, possibly a plasticiser, leached from the plastic bag. It was subsequently suggested that the unidentified contaminant might also cause interference in certain automated non-extraction assays for 25-OHD. This was investigated in 3 automated immunoassays by comparing serum 25-OHD results from blood collected simultaneously into plain glass tubes and plastic bags. There was no significant difference in results, indicating that the leached substance had no effect on any of the 3 immunoassays examined.
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Affiliation(s)
- G D Carter
- Department of Clinical Biochemistry, Department Imperial College Healthcare NHS Trust, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, UK.
| | - J Jones
- Department of Clinical Biochemistry, Department Imperial College Healthcare NHS Trust, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, UK
| | - M Ketheeswaran
- Department of Clinical Biochemistry, Department Imperial College Healthcare NHS Trust, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, UK
| | - J Shannon
- Department of Clinical Biochemistry, Department Imperial College Healthcare NHS Trust, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, UK
| | - B Singh
- Department of Clinical Biochemistry, Department Imperial College Healthcare NHS Trust, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, UK
| | - E Kearney
- Clinical Biochemistry, East Kent Hospitals University NHS Foundation Trust, William Harvey Hospital, Ashford, Kent TN24 0LZ, UK
| | - J L Berry
- Department of Clinical Biochemistry, Central Manchester NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester M13 9WL, UK; Institute of Human Development, University of Manchester, Manchester M13 9PT, UK
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14
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Abdelkader H, Pierscionek B, Alany RG. Novel in situ gelling ocular films for the opioid growth factor-receptor antagonist-naltrexone hydrochloride: fabrication, mechanical properties, mucoadhesion, tolerability and stability studies. Int J Pharm 2014; 477:631-42. [PMID: 25445974 DOI: 10.1016/j.ijpharm.2014.10.069] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 10/29/2014] [Accepted: 10/30/2014] [Indexed: 11/16/2022]
Abstract
Naltrexone hydrochloride (NTX) is an innovative drug used in ophthalmology for treatment of ocular surface diseases such as impaired corneal wound healing and severe dry eye. Poor chemical stability has been a major limitation for development of NTX in solution form. The aim of this study was to develop and characterise NTX in situ ocular films for enhanced chemical stability and improved ocular tolerability. The films were prepared from different amorphous polymers and characterised for physicochemical compatibility, moisture-sorption, surface pH, mechanical properties, sterilisability, surface morphology, mucoadhesion, in vitro release, conjunctival irritation and accelerated stability at 40°C/75% relative humidity for 3 months. Glycerin (GLY)-plasticised films exhibited significantly better mechanical properties, compared with polyethylene glycol (PEG) 400 and triethylcitrate (TEC)-plasticised formulations. Superior mucoadhesion was recorded for F7 and F9 plasticised with GLY and PEG 400, respectively. The stability of NTX was significantly enhanced more than 18-times, compared with the solution form. Combination of carboxymethylcellulose sodium (CMC) and sodium alginate (ALG) in a film formulation demonstrated minimal % moisture sorption, good mechanical properties, in vitro release, excellent chemical stability and minimal conjunctival irritation lending them as promising ocular formulations.
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Affiliation(s)
- Hamdy Abdelkader
- Drug Discovery, Delivery and Patient (DDDPC) Theme, School of Pharmacy and Chemistry, Kingston University London, Kingston upon Thames, London, UK; Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Mina, Egypt.
| | - Barbara Pierscionek
- Vision Cognition and Neuroscience Theme, Faculty of Science, Engineering and Computing, Kingston University London, Kingston upon Thames, London, UK
| | - Raid G Alany
- Drug Discovery, Delivery and Patient (DDDPC) Theme, School of Pharmacy and Chemistry, Kingston University London, Kingston upon Thames, London, UK; School of Pharmacy, The University of Auckland, Auckland, New Zealand
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15
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Stuart ME, Lapworth DJ, Thomas J, Edwards L. Fingerprinting groundwater pollution in catchments with contrasting contaminant sources using microorganic compounds. Sci Total Environ 2014; 468-469:564-577. [PMID: 24055671 DOI: 10.1016/j.scitotenv.2013.08.042] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 08/15/2013] [Accepted: 08/15/2013] [Indexed: 06/02/2023]
Abstract
Evaluating the occurrence of microorganics helps to understand sources and processes which may be controlling the transport and fate of emerging contaminants (ECs). A study was carried out at the contrasting instrumented environmental observatory sites at Oxford, on the peri-urban floodplain gravel aquifer of the River Thames and Boxford, in the rural valley of the River Lambourn on the chalk aquifer, in Southern England to explore the use of ECs to fingerprint contaminant sources and flow pathways in groundwater. At Oxford compounds were typical of a local waste tip plume (not only plasticisers and solvents but also barbiturates and N,N-diethyl-m-toluamide (DEET)) and of the urban area (plasticisers and mood-enhancing drugs such as carbamazepine). At Boxford the results were different with widespread occurrence of agricultural pesticides, their metabolites and the solvent trichloroethene, as well as plasticisers, caffeine, butylated food additives, DEET, parabens and trace polyaromatic hydrocarbons (PAHs). Groups of compounds used in pharmaceuticals and personal care products of different provenance in the environment could be distinguished, i) historical household and medical waste, ii) long-term household usage persistent in groundwater and iii) current usage and contamination from surface water. Co-contaminant and degradation products can also indicate the likely source of contaminants. A cocktail of contaminants can be used as tracers to provide information on catchment pathways and groundwater/surface water interactions. A prominent feature in this study is the attenuation of many EC compounds in the hyporheic zone.
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Affiliation(s)
- Marianne E Stuart
- British Geological Survey, Maclean Building, Wallingford OX10 8BB, United Kingdom.
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