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Duporté G, Barron E, Bureau M, Le Menach K, Baldi I, Dévier MH, Budzinski H. Dislodgeable Foliar Residue Measurements and Assessment of Dermal Exposure to Captan for Workers in Apple Orchards. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:13605-13612. [PMID: 39038811 PMCID: PMC11308519 DOI: 10.1021/acs.est.3c10542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 07/24/2024]
Abstract
Captan dislodgeable foliar residues (DFRs) were determined by following the applications of this fungicide in an apple orchard. The study comprised an investigation of the variability of captan DFR values and 14 days of DFR monitoring to assess kinetic modeling. A method combining solid-phase microextraction (SPME) gas chromatography and high-resolution mass spectrometry (GC-QTOF-MS) was developed for the quantification of captan residues from DFR aqueous extracts. The results evidenced that (1) sampling parameters such as the position of the tree in a row and the height of foliar significantly influenced captan DFR levels (247-1450 ng·cm-2), highlighting the need to implement a comprehensive sampling strategy; (2) the DFR captan dissipation kinetic model best matched with a biphasic one, with half-lives of DFRcaptan of 3.4 and 12.8 days, respectively, for the initial rapid phase 1 decline (day 0-5) and the slower phase 2 decline phase (day 6-14). Furthermore, through DFR measurements, the potential dermal exposure (PDE) of workers was assessed using transfer coefficients (TCs) from the literature. Compared to the acceptable operator exposure levels (AOELs), the results showed that the re-entry interval for captan may not sufficiently protect workers whose arms, hands, and legs are not covered.
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Affiliation(s)
- Geoffroy Duporté
- Univ.
Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33600 Pessac, France
| | - Emmanuelle Barron
- Univ.
Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33600 Pessac, France
| | - Mathilde Bureau
- Univ.
Bordeaux, INSERM, BPH, U1219, F-33000 Bordeaux, France
| | - Karyn Le Menach
- Univ.
Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33600 Pessac, France
| | - Isabelle Baldi
- Univ.
Bordeaux, INSERM, BPH, U1219, F-33000 Bordeaux, France
- CHU
de Bordeaux, Service Santé Travail Environnement, Pôle
de Santé Publique, F-33000 Bordeaux, France
| | | | - Hélène Budzinski
- Univ.
Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33600 Pessac, France
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2
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Kwok HC, Chan W. Aristolochic Acid Exposure via Dermal Contact or Inhalation of Herbal Powders: Evidence of Occupational Exposure in Herbalists with Urothelial Cancer. Chem Res Toxicol 2024; 37:873-877. [PMID: 38780306 DOI: 10.1021/acs.chemrestox.4c00157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Emerging evidence showing urothelial cancer in herbalists is linked to aristolochic acid (AA) exposure; however, the exposure pathway remains unclear. Here, we show that dermal contact and inhalation of fine powders of AA-containing herbs are significant occupational AA exposure pathways for herbalists. We initiated the study by quantifying the amount of AA in the AA-containing powder deposited on gloves and face masks worn by the operators of an AA-containing herb grinding machine. Then, we measured the kinetics of dermal absorption and dissolution of AA from fine powders of AA-containing herbs into artificial sweat and surrogate lung fluid. Lastly, we quantified the mutagenic AA-DNA adduct levels formed in the kidneys of mice exposed to AA-containing fine powders through dermal contact. Our findings highlight an urgent occupational risk that should demand implementation of safety standards for herbalists exposed to AA-containing fine powders.
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Affiliation(s)
- Hong-Ching Kwok
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Wan Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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3
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Ma J, Ren W, Dai S, Wang H, Chen S, Song J, Jia J, Chen H, Tan C, Sui Y, Teng Y, Luo Y. Spatial distribution and ecological-health risks associated with herbicides in soils and crop kernels of the black soil region in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168439. [PMID: 37949128 DOI: 10.1016/j.scitotenv.2023.168439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/12/2023]
Abstract
Herbicides are vital inputs for food production; however, their associated risks and hazards are pressing concerns. In black soil, the cumulative toxic effects of compound herbicides and potential risks to humans are not yet fully understood. Thus, this study conducted a comprehensive investigation to assess herbicide residue characteristics and the associated ecological health risks in representative black soil regions where major food crops (maize, soybean, and rice) are cultivated. Findings revealed that the soil harbored a collective presence of 29 herbicides, exhibiting total concentrations ranging from 111.92 to 996.14 μg/kg dry weight (dw). This can be attributed to the extensive use of herbicides over the years and their long half-lives, which results in the accumulation of multiple herbicide residues in the soil. Similarly, the total herbicide levels in maize, soybean, and rice kernels were 1173-61,564, 1721-9342, and 3775-8094 ng/kg dw, respectively. Multiple herbicide residues at all monitored sites were attributed to continuous crop barriers in soybean fields and the adoption of soybean and maize crop rotations. Notably, herbicides pose ecological risks in the black soil region, exhibiting high-risk levels of 79 %, 24 %, and 14 % at the sites monitored for oxyfluorfen, clomazone, and butachlor, respectively. Carcinogenic atrazine exhibited low- and medium-risk levels in 34 % and 63 % of soil samples, respectively. These results can serve as a scientific basis for establishing herbicide residue thresholds in agricultural soils within black soil areas and for implementing effective control measures to prevent herbicide contamination in agricultural ecosystems.
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Affiliation(s)
- Jun Ma
- School of Geographic Sciences, Hunan Normal University, Changsha 410081, China; Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; College of Materials and Chemistry, Tongren University, Tongren 554300, China
| | - Wenjie Ren
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Shixiang Dai
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Hongzhe Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Sensen Chen
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Jiayin Song
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Junfeng Jia
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Hong Chen
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Changyin Tan
- School of Geographic Sciences, Hunan Normal University, Changsha 410081, China
| | - Yueyu Sui
- Hailun Agro-ecosystem Experimental Station, Chinese Academy of Sciences, Hailun 152300, China
| | - Ying Teng
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; Technology Innovation Center for Ecological Monitoring & Restoration Project on Land(Arable), Ministry of Natural Resources, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Yongming Luo
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
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4
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Pham QD, Biatry B, Grégoire S, Topgaard D, Sparr E. Solubility of Foreign Molecules in Stratum Corneum Brick and Mortar Structure. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:2347-2357. [PMID: 36716111 PMCID: PMC9933541 DOI: 10.1021/acs.langmuir.2c03092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 01/12/2023] [Indexed: 06/18/2023]
Abstract
The barrier function of the skin is mainly assured by its outermost layer, stratum corneum (SC). One key aspect in predicting dermal drug delivery and in safety assessment of skin exposure to chemicals is the need to determine the amount of chemical that is taken up into the SC. We here present a strategy that allows for direct measures of the amount of various solid chemicals that can be dissolved in the SC in any environmental relative humidity (RH). A main advantage of the presented method is that it distinguishes between molecules that are dissolved within the SC and molecules that are not dissolved but might be present at, for example, the skin surface. In addition, the method allows for studies of uptake of hydrophobic chemicals without the need to use organic solvents. The strategy relies on the differences in the molecular properties of the added molecules in the dissolved and the excess states, employing detection methods that act as a dynamic filter to spot only one of the fractions, either the dissolved molecules or the excess solid molecules. By measuring the solubility in SC and delipidized SC at the same RHs, the same method can be used to estimate the distribution of the added chemical between the extracellular lipids and corneocytes at different hydration conditions. The solubility in porcine SC is shown to vary with hydration, which has implications for the molecular uptake and transport across the skin. The findings highlight the importance of assessing the chemical uptake at hydration conditions relevant to the specific applications. The methodology presented in this study can also be generalized to study the solubility and partitioning of chemicals in other heterogeneous materials with complex composition and structure.
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Affiliation(s)
- Quoc Dat Pham
- Division
of Physical Chemistry, Chemistry Department, Lund University, P.O. Box 124, 22100Lund, Sweden
- Gillette
Reading Innovation Centre, 460 Basingstoke Road, ReadingRG2 0QE, Berkshire, U.K.
| | - Bruno Biatry
- L’Oréal
Research & Innovation, 1, avenue Eugène Schueller, 93601Aulnay sous Bois, France
| | - Sébastien Grégoire
- L’Oréal
Research & Innovation, 1, avenue Eugène Schueller, 93601Aulnay sous Bois, France
| | - Daniel Topgaard
- Division
of Physical Chemistry, Chemistry Department, Lund University, P.O. Box 124, 22100Lund, Sweden
| | - Emma Sparr
- Division
of Physical Chemistry, Chemistry Department, Lund University, P.O. Box 124, 22100Lund, Sweden
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5
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Chen X, Wang S, Mao X, Xiang X, Ye S, Chen J, Zhu A, Meng Y, Yang X, Peng S, Deng M, Wang X. Adverse health effects of emerging contaminants on inflammatory bowel disease. Front Public Health 2023; 11:1140786. [PMID: 36908414 PMCID: PMC9999012 DOI: 10.3389/fpubh.2023.1140786] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 02/06/2023] [Indexed: 03/14/2023] Open
Abstract
Inflammatory bowel disease (IBD) is becoming increasingly prevalent with the improvement of people's living standards in recent years, especially in urban areas. The emerging environmental contaminant is a newly-proposed concept in the progress of industrialization and modernization, referring to synthetic chemicals that were not noticed or researched before, which may lead to many chronic diseases, including IBD. The emerging contaminants mainly include microplastics, endocrine-disrupting chemicals, chemical herbicides, heavy metals, and persisting organic pollutants. In this review, we summarize the adverse health effect of these emerging contaminants on humans and their relationships with IBD. Therefore, we can better understand the impact of these new emerging contaminants on IBD, minimize their exposures, and lower the future incidence of IBD.
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Affiliation(s)
- Xuejie Chen
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Sidan Wang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Xueyi Mao
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Xin Xiang
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Shuyu Ye
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Jie Chen
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Centre for Global Health, Zhejiang University, Hangzhou, China
| | - Angran Zhu
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yifei Meng
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Xiya Yang
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Shuyu Peng
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Minzi Deng
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Xiaoyan Wang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
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6
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Salazar-Flores J, Lomelí-Martínez SM, Ceja-Gálvez HR, Torres-Jasso JH, Torres-Reyes LA, Torres-Sánchez ED. Impacts of Pesticides on Oral Cavity Health and Ecosystems: A Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:11257. [PMID: 36141526 PMCID: PMC9517265 DOI: 10.3390/ijerph191811257] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/01/2022] [Accepted: 09/03/2022] [Indexed: 06/16/2023]
Abstract
Pesticides are chemical substances used to control, prevent, or destroy agricultural, domestic, and livestock pests. These compounds produce adverse changes in health, and they have been associated with the development of multiple chronic diseases. This study aimed to present a detailed review of the effect of pesticides on the oral cavity and the oral microbiome. In the oral cavity, pesticides alter and/or modify tissues and the microbiome, thereby triggering imbalance in the ecosystem, generating an inflammatory response, and activating hydrolytic enzymes. In particular, the imbalance in the oral microbiome creates a dysbiosis that modifies the number, composition, and/or functions of the constituent microorganisms and the local response of the host. Pesticide exposure alters epithelial cells, and oral microbiota, and disrupts the homeostasis of the oral environment. The presence of pesticides in the oral cavity predisposes the appearance of pathologies such as caries, periodontal diseases, oral cancer, and odontogenic infections. In this study, we analyzed the effect of organochlorines, organophosphates, pyrethroids, carbamates, bipyridyls, and triazineson oral cavity health and ecosystems.
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Affiliation(s)
- Joel Salazar-Flores
- Department of Medical and Life Sciences, University Center of La Cienega (CUCIENEGA), University of Guadalajara, Ocotlan 47810, Jalisco, Mexico
| | - Sarah M. Lomelí-Martínez
- Department of Medical and Life Sciences, University Center of La Cienega (CUCIENEGA), University of Guadalajara, Ocotlan 47810, Jalisco, Mexico
- Department of Integral Dental Clinics, University Center of Health Sciences (CUCS), University of Guadalajara, Guadalajara 44340, Jalisco, Mexico
| | - Hazael R. Ceja-Gálvez
- Institute of Research in Biomedical Sciences, University Center of Health Sciences (CUCS), University of Guadalajara, Guadalajara 44340, Jalisco, Mexico
| | - Juan H. Torres-Jasso
- Department of Biological Sciences, University Center of La Costa (CUCOSTA), University of Guadalajara, Puerto Vallarta 48280, Jalisco, Mexico
| | - Luis A. Torres-Reyes
- Department of Molecular Biology and Genomics, University Center of Health Sciences (CUCS), University of Guadalajara, Guadalajara 44340, Jalisco, Mexico
| | - Erandis D. Torres-Sánchez
- Department of Medical and Life Sciences, University Center of La Cienega (CUCIENEGA), University of Guadalajara, Ocotlan 47810, Jalisco, Mexico
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7
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Fitoussi R, Faure MO, Beauchef G, Achard S. Human skin responses to environmental pollutants: A review of current scientific models. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 306:119316. [PMID: 35469928 DOI: 10.1016/j.envpol.2022.119316] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 04/11/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
Whatever the exposure route, chemical, physical and biological pollutants modify the whole organism response, leading to nerve, cardiac, respiratory, reproductive, and skin system pathologies. Skin acts as a barrier for preventing pollutant modifications. This review aims to present the available scientific models, which help investigate the impact of pollution on the skin. The research question was "Which experimental models illustrate the impact of pollution on the skin in humans?" The review covered a period of 10 years following a PECO statement on in vitro, ex vivo, in vivo and in silico models. Of 582 retrieved articles, 118 articles were eligible. In oral and inhalation routes, dermal exposure had an important impact at both local and systemic levels. Healthy skin models included primary cells, cell lines, co-cultures, reconstructed human epidermis, and skin explants. In silico models estimated skin exposure and permeability. All pollutants affected the skin by altering elasticity, thickness, the structure of epidermal barrier strength, and dermal extracellular integrity. Some specific models concerned wound healing or the skin aging process. Underlying mechanisms were an exacerbated inflammatory skin reaction with the modulation of several cytokines and oxidative stress responses, ending with apoptosis. Pathological skin models revealed the consequences of environmental pollutants on psoriasis, atopic dermatitis, and tumour development. Finally, scientific models were used for evaluating the safety and efficacy of potential skin formulations in preventing the skin aging process or skin irritation after repeated contact. The review gives an overview of scientific skin models used to assess the effects of pollutants. Chemical and physical pollutants were mainly represented while biological contaminants were little studied. In future developments, cell hypoxia and microbiota models may be considered as more representative of clinical situations. Models considering humidity and temperature variations may reflect the impact of these changes.
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Affiliation(s)
| | - Marie-Odile Faure
- Scientific Consulting For You, 266 avenue Daumesnil, 75012, PARIS, France
| | | | - Sophie Achard
- HERA Team (Health Environmental Risk Assessment), INSERM UMR1153, CRESS-INRAE, Université Paris Cité, Faculté de Pharmacie, 4 avenue de l'Observatoire, 75270 CEDEX 06, PARIS, France.
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8
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Sequential Indoor Use of Pesticides: Operator Exposure via Deposit Transfer from Sprayed Crops and Contaminated Application Equipment. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12083909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Dermal transfer of pesticide residues to human skin due to contact with treated crops, treated surfaces, or contaminated surfaces is an important route of exposure for operators, workers and possibly for bystanders and residents. However, information on dermal transfer data is limited and mainly available for workers. The aim of the present study has been to generate both dermal exposure and transfer data related for operators involved in sequential tasks of mixing/loading and application of pesticides in a southern EU zone greenhouse. Exposure measurements were based on the principles of the whole-body dosimetry (WBD) method involving the use of cotton coveralls and gloves as dosimeters. Six field trials were conducted in three tomato greenhouses, on the island of Crete, Greece. The study results showed that the contribution of existing pesticide deposits on the treated crops, i.e., from an application conducted earlier the same day, was in the range of 8–16% for the application task and 0.9–18% for the mixing/loading task in relation to the measured total exposure to this pesticide during a short-term sequential application. The results of this study have been incorporated in the GAOEM (Greenhouse Agricultural Operator Exposure Model) included in the updated EFSA Guidance on the assessment of exposure of operators, workers, residents and bystanders in risk assessment of plant protection products. The low values of the pesticide amount penetrating the coverall (actual dermal exposure) in all cases highlight and confirm the need for the use of appropriate personal protective equipment (PPE) for operator safety.
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9
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Sahmel J, Arnold S, Ramachandran G. Influence of repeated contacts on the transfer of elemental metallic lead between compartments in an integrated conceptual model for dermal exposure assessment. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2022; 85:89-109. [PMID: 34569450 DOI: 10.1080/15287394.2021.1979435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Transfer of contaminants to and from the skin surface has been postulated to occur through a number of different pathways and compartments including: object(s)-to-skin, skin-to-skin, skin-to-clothing, skin-to-gloves, air-to-skin, skin-to-lips, and skin-to-saliva. However, many identified transfer pathways have been only minimally examined to determine the potential for measurable transfer. The purpose of this study was to quantitatively evaluate repeated transfer between different compartments using elemental metallic lead (Pb) in the solid form using a series of systematic measurements in human subjects. The results demonstrated that some transfer pathways and compartments are significantly more important than others. Transfer of Pb could not be measured from skin to cotton clothing or skin to laminate countertop surfaces. However, transfer was consistently measured for skin-to-skin and between the skin and the surface of nitrile gloves, suggesting the potential for significant transfer to or from these compartments in real-world exposure scenarios, and the importance of these pathways. With repeated contacts, transfer increased non-linearly between 1 and 5 contacts, but appeared to approach a steady state distribution among the compartments within 10 contacts. Consistent with other studies, relative to 100% transfer for a single contact, the quantitative transfer efficiency decreased with repeated contacts to 29% after 5 contacts and 11-12% after 10 contacts; for skin-to-skin transfer measurements, transfer efficiency after either 5 or 10 contacts was approximately 50% of the single contact transfer. These data are likely to be useful for refining current approaches to modeling of repeated contacts for dermal exposure and risk assessment.
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Affiliation(s)
- J Sahmel
- Insight Exposure and Risk Sciences, Boulder, Colorado, USA
- Division of Environmental Health Sciences, School of Public Health, University of Minnesota, Minneapolis, Minnesota, USA
| | - S Arnold
- Division of Environmental Health Sciences, School of Public Health, University of Minnesota, Minneapolis, Minnesota, USA
| | - G Ramachandran
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
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Bureau M, Béziat B, Duporté G, Bouchart V, Lecluse Y, Barron E, Garrigou A, Dévier MH, Budzinski H, Lebailly P, Baldi I. Pesticide exposure of workers in apple growing in France. Int Arch Occup Environ Health 2021; 95:811-823. [PMID: 34761282 PMCID: PMC9038849 DOI: 10.1007/s00420-021-01810-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 10/09/2021] [Indexed: 11/25/2022]
Abstract
Objective Although apple trees are heavily sprayed, few studies have assessed the pesticide exposure of operators and workers in apple orchards. However, these data are crucial for assessing the health impact of such exposures. The aim of this study was to measure pesticide exposure in apple growing according to tasks and body parts. Methods A non-controlled field study was conducted in apple orchards in 4 regions of France during the 2016 and 2017 treatment seasons. Workers’ external contamination and their determinants were assessed over 156 working days corresponding to 30 treatment days, 68 re-entry days and 58 harvesting days. We measured pesticide dermal contamination during each task and made detailed observations of work characteristics throughout the day. Captan and dithianon were used as markers of exposure. Results The median dermal contamination per day was 5.50 mg of captan and 3.33 mg of dithianon for operators, 24.39 mg of captan and 1.84 mg of dithianon for re-entry workers, and 5.82 mg of captan and 0.74 mg of dithianon for harvesters. Thus, workers performing re-entry tasks, especially thinning and anti-hail net opening, presented higher contamination, either equal to or higher than in operators. For these last ones, mixing/loading and equipment cleaning were the most contaminating tasks. Most of the contamination was observed on workers’ hands in all tasks, except for net-opening in which their heads accounted for the most daily contamination. Conclusions This study highlights the importance of taking indirect exposures into account during re-entry work in apple growing.
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Affiliation(s)
- Mathilde Bureau
- BPH Center, Inserm U1219, Université de Bordeaux, ISPED, Case 11, 146 rue Léo Saignat, 33076, Bordeaux Cedex, France.
| | - Béatrix Béziat
- BPH Center, Inserm U1219, Université de Bordeaux, ISPED, Case 11, 146 rue Léo Saignat, 33076, Bordeaux Cedex, France
| | - Geoffroy Duporté
- Univ. Bordeaux, CNRS, UMR5805 EPOC-LPTC, 351 cours de la Libération, 33400, Talence, France
| | - Valérie Bouchart
- LABÉO, Saint Contest, 1 route de Rosel, 14000, Caen, France.,Normandie Univ, UNICAEN, INSERM, UMR 1086 ANTICIPE, 14000, Caen, France.,Centre de Lutte Contre Le Cancer François Baclesse, 3 avenue du Général Harris, 14000, Caen, France
| | - Yannick Lecluse
- Normandie Univ, UNICAEN, INSERM, UMR 1086 ANTICIPE, 14000, Caen, France.,Centre de Lutte Contre Le Cancer François Baclesse, 3 avenue du Général Harris, 14000, Caen, France
| | - Emmanuelle Barron
- Univ. Bordeaux, CNRS, UMR5805 EPOC-LPTC, 351 cours de la Libération, 33400, Talence, France
| | - Alain Garrigou
- BPH Center, Inserm U1219, Université de Bordeaux, ISPED, Case 11, 146 rue Léo Saignat, 33076, Bordeaux Cedex, France
| | - Marie-Hélène Dévier
- Univ. Bordeaux, CNRS, UMR5805 EPOC-LPTC, 351 cours de la Libération, 33400, Talence, France
| | - Hélène Budzinski
- Univ. Bordeaux, CNRS, UMR5805 EPOC-LPTC, 351 cours de la Libération, 33400, Talence, France
| | - Pierre Lebailly
- Normandie Univ, UNICAEN, INSERM, UMR 1086 ANTICIPE, 14000, Caen, France.,Centre de Lutte Contre Le Cancer François Baclesse, 3 avenue du Général Harris, 14000, Caen, France
| | - Isabelle Baldi
- BPH Center, Inserm U1219, Université de Bordeaux, ISPED, Case 11, 146 rue Léo Saignat, 33076, Bordeaux Cedex, France.,CHU de Bordeaux, Service Santé Travail Environnement, Place Amélie Raba Léon, 33000, Bordeaux, France
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11
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Morgan N, Hewitt NJ, Felkers E, Wiemann C, Kluxen FM, Kuster CJ. Dose Setting for Dermal Absorption Studies on Dried Foliar Residues. Ann Work Expo Health 2021; 65:397-405. [PMID: 33582764 DOI: 10.1093/annweh/wxaa139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 11/11/2020] [Accepted: 12/15/2020] [Indexed: 11/13/2022] Open
Abstract
Currently, the standard approach to estimate systemic exposure of workers after contact with dried pesticide residues on crops during re-entry activities relies on using the highest identified dermal absorption value for aqueous spray dilutions. However, recent dermal absorption studies with dried residues and their respective in-use dilutions have shown that this is likely to significantly overestimate their dermal penetration potential and, thus, predicted systemic exposure. The choice of appropriate dose levels for these dermal absorption studies has not been defined. Moreover, actual skin loading during re-entry tasks may differ significantly from that achieved by applying a fixed volume of an aqueous dilution, which is the standard practice in generic dermal absorption studies. To address this, we propose an approach to dose setting for dried residue studies within the current European risk assessment framework. Skin loading for studies can be calculated from the existing exposure algorithms and by taking appropriate body surface areas into account. Thus, skin loading in studies will vary depending on the exact nature and duration of the task and the region of the body exposed, reflecting actual exposure scenarios.
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Affiliation(s)
- Neil Morgan
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, UK
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12
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Soria ALG, Ramirez FR, Pliego AB, Guadarrama HRD, Farrera GPM, Angel GY, Chagoyán JCV, Gomaa RMM, Tenorio-Borroto E. Evaluating Hemolytic and Photo Hemolytic Potential of Organophosphorus by In Vitro Method as an Alternative Tool Using Human Erythrocytes. Curr Top Med Chem 2021; 20:738-745. [PMID: 32101124 DOI: 10.2174/1568026620666200226104029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/03/2020] [Accepted: 01/03/2020] [Indexed: 11/22/2022]
Abstract
AIMS The present study aims to determine the phototoxic and haemolytic activity of organophosphorus. The use of alternative in vitro assays with human erythrocytes is suggested to predict the polluting effect of these products on health. METHODOLOGY Human erythrocytes from Toluca Blood Bank were used. Sodium dodecyl sulfate was employed as a positive control. Additionally, the haemolysis percentage of three organophosphate (Acetate, Chlorpyrifos, Malathion, Methamidophos, Methyl Parathion) induced photo haemolysis formulated with surfactants on a concentration of 2 x 109 erythrocytes were evaluated. Finally, the products were classified as irritant or phototoxic. RESULTS Results showed that the HC50 red blood cells were similar for each organophosphate (Malathion and Methamidophos) indicating very irritant action with ratio classification (L/D) of 0.041 and 0.053, respectively. On the other hand, Chlorpyrifos was classified as an irritant with L/D= 0.14. On the other hand, the HC50 obtained photo hemolysis assays irradiated red blood cells was similar for each organophosphate (Acetate, Chlorpyrifos, Malathion, Methamidophos, Methyl Parathion) indicating no phototoxic action. CONCLUSION As a conclusion, it can be said that the parameters of haemolysis and denaturation of proteins are good indicators to classify organophosphorus formulated with surfactants as irritating or phototoxic.
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Affiliation(s)
- Ana L G Soria
- Faculty of Veterinary Medicine and Animal Science, Autonomous University of the State of Mexico, Toluca, Mexico
| | - Fabiola R Ramirez
- Technological University of the Valley of Toluca, Carretera del Distrito Federal Km 7.5 Santa María Atarrasquillo, Lerma, State of Mexico, 52044, Mexico
| | - Alberto B Pliego
- Faculty of Veterinary Medicine and Animal Science, Autonomous University of the State of Mexico, Toluca, Mexico
| | - Héctor R D Guadarrama
- Faculty of Veterinary Medicine and Animal Science, Autonomous University of the State of Mexico, Toluca, Mexico
| | - Guadalupe P M Farrera
- Faculty of Veterinary Medicine and Animal Science, Autonomous University of Chiapas, Tuxtla Gutierrez, Mexico
| | - Gilberto Y Angel
- Faculty of Veterinary Medicine and Animal Science, Autonomous University of Chiapas, Tuxtla Gutierrez, Mexico
| | - Juan C V Chagoyán
- Faculty of Veterinary Medicine and Animal Science, Autonomous University of the State of Mexico, Toluca, Mexico
| | - Raafat M M Gomaa
- Department of Animal Production, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
| | - Esvieta Tenorio-Borroto
- Faculty of Veterinary Medicine and Animal Science, Autonomous University of the State of Mexico, Toluca, Mexico
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Hopf NB, Champmartin C, Schenk L, Berthet A, Chedik L, Du Plessis JL, Franken A, Frasch F, Gaskin S, Johanson G, Julander A, Kasting G, Kilo S, Larese Filon F, Marquet F, Midander K, Reale E, Bunge AL. Reflections on the OECD guidelines for in vitro skin absorption studies. Regul Toxicol Pharmacol 2020; 117:104752. [PMID: 32791089 DOI: 10.1016/j.yrtph.2020.104752] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 06/20/2020] [Accepted: 07/27/2020] [Indexed: 02/07/2023]
Abstract
At the 8th conference of Occupational and Environmental Exposure of the Skin to Chemicals (OEESC) (16-18 September 2019) in Dublin, Ireland, several researchers performing skin permeation assays convened to discuss in vitro skin permeability experiments. We, along with other colleagues, all of us hands-on skin permeation researchers, present here the results from our discussions on the available OECD guidelines. The discussions were especially focused on three OECD skin absorption documents, including a recent revision of one: i) OECD Guidance Document 28 (GD28) for the conduct of skin absorption studies (OECD, 2004), ii) Test Guideline 428 (TGD428) for measuring skin absorption of chemical in vitro (OECD, 2004), and iii) OECD Guidance Notes 156 (GN156) on dermal absorption issued in 2011 (OECD, 2011). GN156 (OECD, 2019) is currently under review but not finalized. A mutual concern was that these guidance documents do not comprehensively address methodological issues or the performance of the test, which might be partially due to the years needed to finalize and update OECD documents with new skin research evidence. Here, we summarize the numerous factors that can influence skin permeation and its measurement, and where guidance on several of these are omitted and often not discussed in published articles. We propose several improvements of these guidelines, which would contribute in harmonizing future in vitro skin permeation experiments.
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Affiliation(s)
- N B Hopf
- Centre for Primary Care and Public Health (Unisante), Department for Occupational and Environmental Health (DSTE), Exposure Science Unit, Switzerland.
| | - C Champmartin
- French National Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), France.
| | - L Schenk
- Karolinska Institutet, Institute of Environmental Medicine, Unit of Integrative Toxicology, Sweden.
| | - A Berthet
- Centre for Primary Care and Public Health (Unisante), Department for Occupational and Environmental Health (DSTE), Exposure Science Unit, Switzerland.
| | - L Chedik
- French National Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), France.
| | - J L Du Plessis
- Occupational Hygiene and Health Research Initiative (OHHRI) North-West University, South Africa.
| | - A Franken
- Occupational Hygiene and Health Research Initiative (OHHRI) North-West University, South Africa.
| | - F Frasch
- Occupational Hygiene and Health Research Initiative (OHHRI) North-West University, South Africa.
| | - S Gaskin
- University of Adelaide, School of Public Health, Health and Medical Sciences, Australia.
| | - G Johanson
- Karolinska Institutet, Institute of Environmental Medicine, Unit of Integrative Toxicology, Sweden.
| | - A Julander
- Karolinska Institutet, Institute of Environmental Medicine, Unit of Integrative Toxicology, Sweden.
| | - G Kasting
- University of Cincinnati, James L. Winkle College of Pharmacy, USA.
| | - S Kilo
- Friedrich-Alexander University Erlangen-Nürnberg, Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine, Germany.
| | - F Larese Filon
- University of Trieste, Clinical Unit of Occupational Medicine, Department of Medical, Surgical and Health Sciences, Italy.
| | - F Marquet
- French National Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), France.
| | - K Midander
- Karolinska Institutet, Institute of Environmental Medicine, Unit of Integrative Toxicology, Sweden.
| | - E Reale
- Centre for Primary Care and Public Health (Unisante), Department for Occupational and Environmental Health (DSTE), Exposure Science Unit, Switzerland.
| | - A L Bunge
- Colorado School of Mines, Chemical and Biological Engineering, USA.
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14
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Pedon de Araujo Cardoso T, Viturino da Silva JW, Kishishita J, Galindo Bedor CN, Galindo Bedor DC, Pereira de Santana D, Bastos Leal L. Pesticide dermal absorption: Case study x in vitro study. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 75:103313. [PMID: 31865005 DOI: 10.1016/j.etap.2019.103313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 11/26/2019] [Accepted: 12/09/2019] [Indexed: 06/10/2023]
Abstract
In order to evaluate dermal absorption during typical working conditions in family farming, the amount of dimethoate on clothing and in the stratum corneum (SC) was measured in three rural workers. This was achieved by using cotton patches on the worker's clothes and SC quantification by the tape stripping approach. To mimic the above study, an in vitro approach was performed using Franz cells by applying dimethoate (0.4 and 1.8 μg) direct to pig skin or, on a section of cotton before contact with pig skin. The in vivo case results demonstrated the high levels and variability of agrochemicals to which these farmers are subjected, with the total potential dermal absorption between 0.87-2.85 mg/person/h and the estimated SC penetration factor (PF) between 0-54.0 and 0-28.9 % for the back of the neck and the arms respectively. This probably demonstrates the impact of correct protective clothing. For the in vitro study, the amount of pesticide retained in the SC was 52.63 ± 10.73and 135.15 ± 31.8 ng/cm2 after applying 0.4 and 1.8 μg of pesticide directly on SC, and demonstrated close agreement with the in vivo approach. Further studies performed with this and other pesticides with different characteristics will contribute to the understanding of their transport through the skin.
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Affiliation(s)
| | | | - Juliana Kishishita
- Universidade Federal de Pernambuco, Departamento Ciências farmacêuticas, CEP: 50740-520, Recife, PE, Brazil
| | | | - Danilo Cesar Galindo Bedor
- Universidade Federal de Pernambuco, Departamento Ciências farmacêuticas, CEP: 50740-520, Recife, PE, Brazil
| | - Davi Pereira de Santana
- Universidade Federal de Pernambuco, Departamento Ciências farmacêuticas, CEP: 50740-520, Recife, PE, Brazil
| | - Leila Bastos Leal
- Universidade Federal de Pernambuco, Departamento Ciências farmacêuticas, CEP: 50740-520, Recife, PE, Brazil
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15
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Aggarwal M, Fisher P, Kluxen F, Maas W, Morgan N, Parr-Dobrzanski R, Strupp C, Wiemann C. Assessing in vitro dermal absorption of dry residues of agrochemical sprays using human skin within OECD TG 428. Regul Toxicol Pharmacol 2019; 106:55-67. [DOI: 10.1016/j.yrtph.2019.04.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 04/19/2019] [Accepted: 04/21/2019] [Indexed: 10/27/2022]
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16
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Clarke JF, Cordery SF, Morgan NA, Knowles PK, Guy RH. Dermal Absorption of Pesticide Residues. Chem Res Toxicol 2018; 31:1356-1363. [DOI: 10.1021/acs.chemrestox.8b00227] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- James F. Clarke
- Department of Pharmacy and Pharmacology, University of Bath, Bath BA2 7AY, United Kingdom
| | - Sarah F. Cordery
- Department of Pharmacy and Pharmacology, University of Bath, Bath BA2 7AY, United Kingdom
| | - Neil A. Morgan
- Jealott’s Hill International Research Centre, Syngenta, Bracknell RG42 6EY, United Kingdom
| | - Peter K. Knowles
- Jealott’s Hill International Research Centre, Syngenta, Bracknell RG42 6EY, United Kingdom
| | - Richard H. Guy
- Department of Pharmacy and Pharmacology, University of Bath, Bath BA2 7AY, United Kingdom
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Kasiotis KM, Tsakirakis AN, Richard Glass C, Charistou AN, Anastassiadou P, Gerritsen-Ebben R, Machera K. Assessment of field re-entry exposure to pesticides: A dislodgeable foliar residue study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 596-597:178-186. [PMID: 28432907 DOI: 10.1016/j.scitotenv.2017.04.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/03/2017] [Accepted: 04/03/2017] [Indexed: 06/07/2023]
Abstract
A dislodgeable foliar residue study was conducted in greenhouse pepper and tomato on the island of Crete, Greece, following the spray application of an SC insecticide (with active substance (a.s.) tebufenozide) and an EC fungicide (a.s. bupirimate). Furthermore, for the assessment of worker exposure to pesticides - as a result of re-entering the treated crops - a worker dermal exposure study was carried out during the tasks of tying or pruning, which allowed the transfer coefficient values for the specific tasks to be determined. Pesticide residues were analysed with an in house developed and fully validated HPLC-ESI/MS analytical method. The results from the study resulted in transfer coefficient values which were in agreement with current EFSA guideline values in most of the cases with the exception of bupirimate in a tomato greenhouse. In that case, high potential dermal exposure and low dislodgeable foliar residue values were observed, which is thought to be due to the moist leaves collected during sampling and monitoring, which led to greater than expected transfer coefficient values.
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Affiliation(s)
- Konstantinos M Kasiotis
- Laboratory of Pesticides' Toxicology, Benaki Phytopathological Institute, 8 St. Delta Str., Kifissia, 14561 Athens, Greece.
| | - Angelos N Tsakirakis
- Laboratory of Pesticides' Toxicology, Benaki Phytopathological Institute, 8 St. Delta Str., Kifissia, 14561 Athens, Greece
| | - C Richard Glass
- Food and Environment Research Agency, Sand Hutton, York YO41 1LZ, UK
| | - Agathi N Charistou
- Laboratory of Pesticides' Toxicology, Benaki Phytopathological Institute, 8 St. Delta Str., Kifissia, 14561 Athens, Greece
| | - Pelagia Anastassiadou
- Laboratory of Pesticides' Toxicology, Benaki Phytopathological Institute, 8 St. Delta Str., Kifissia, 14561 Athens, Greece
| | - Rianda Gerritsen-Ebben
- TNO, Department Risk Analysis for Products in Development (RAPID), P.O. Box 360, 3700 AJ Zeist, The Netherlands
| | - Kyriaki Machera
- Laboratory of Pesticides' Toxicology, Benaki Phytopathological Institute, 8 St. Delta Str., Kifissia, 14561 Athens, Greece.
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Clarke JF, Cordery SF, Morgan NA, Knowles PK, Guy RH. In Vitro Method to Quantify Dermal Absorption of Pesticide Residues. Chem Res Toxicol 2015; 28:166-8. [DOI: 10.1021/tx500509z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- James F. Clarke
- Department of Pharmacy & Pharmacology, University of Bath, Bath BA2 7AY, U.K
| | - Sarah F. Cordery
- Department of Pharmacy & Pharmacology, University of Bath, Bath BA2 7AY, U.K
| | - Neil A. Morgan
- Jealott’s
Hill International Research Centre, Syngenta, Bracknell RG42 6EY, U.K
| | - Peter K. Knowles
- Jealott’s
Hill International Research Centre, Syngenta, Bracknell RG42 6EY, U.K
| | - Richard H. Guy
- Department of Pharmacy & Pharmacology, University of Bath, Bath BA2 7AY, U.K
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19
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Guy R. Skin - That Unfakeable Young Surface'. Skin Pharmacol Physiol 2013; 26:181-9. [DOI: 10.1159/000351939] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Accepted: 03/19/2013] [Indexed: 11/19/2022]
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20
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Song S, Ruan T, Wang T, Liu R, Jiang G. Distribution and preliminary exposure assessment of bisphenol AF (BPAF) in various environmental matrices around a manufacturing plant in China. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:13136-43. [PMID: 23151244 DOI: 10.1021/es303960k] [Citation(s) in RCA: 142] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Increasing attention has been paid to bisphenol A and bisphenol (BP) analogues due to high production volumes, wide usage and potential adverse effects. Bisphenol AF (BPAF) is considered a new bisphenol analogue which is used as raw material in plastic industry, but little is known about its occurrence in the environment and the potential associated risk. In this work, BPAF levels and environmental distribution were reported in samples collected around a manufacturing plant and a preliminary exposure risk assessment to local residents was conducted. BPAF was detected in most of the samples, with levels in river ranging between <LOD to 1.53 × 10⁴ ng/L, sediments (0.520-2.00 × 10³ ng/g dry weight, dw), soils (<LOD to 331 ng/g dw) and indoor dusts (7.82-739 ng/g dw) and well water (<LOD to 300 ng/L). Exponential declining trends were observed for BPAF levels with increasing distance from the manufacturing plant. Based on the quantitative data and quantitative structure-property relationship (QSPR) model deduction, BPAF was predicted to mainly retain in sediment and soil after released into the ambient environment and organic carbon was the domain factor during the process. The preliminary BPAF exposure assessment based on the CSOIL model suggested that children could have higher intake of BPAF than adults through inhalation of soils, dermal exposure by soils contact and bathing with well water.
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Affiliation(s)
- Shanjun Song
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China
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