Searched for: subject:"Inhalation%5C+Exposure"
(1 - 20 of 41)

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Franken, R.A. (author), Kasiotis, K.M. (author), Tsakirakis, A.N. (author), Chartzela, I. (author), Anastasiadou, P. (author), Fransman, W. (author), Gerritsen-Ebben, R.M. (author), Spaan, S. (author), Goede, H. (author), Machera, K. (author), Gerritsen-Ebben, R. (author)
For many work situations only insufficient exposure data are available to perform proper risk assessment. Because measuring worker exposure can be time consuming and resource intense, the availability of reliable exposure models is important when performing risk assessments. However, the development and improvement of exposure models are...
article 2020
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Koivisto, A.J. (author), Kling, K.I. (author), Fonseca, A.S. (author), Brostrøm Bluhme, A. (author), Moreman, M. (author), Yu, M. (author), Costa, A.L. (author), Giovanni, B. (author), Ortelli, S. (author), Fransman, W. (author), Vogel, U. (author), Jensen, K.A. (author)
Nanoscale TiO2 (nTiO2) is manufactured in high volumes and is of potential concern in occupational health. Here, we measured workers exposure levels while ceramic honeycombs were dip coated with liquid photoactive nanoparticle suspension and dried with an air blade. The measured nTiO2 concentration levels were used to assess process specific...
article 2018
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Bekker, C. (author), Fransman, W. (author), Boessen, R. (author), Oerlemans, A. (author), Ottenbros, I.B. (author), Vermeulen, R. (author)
Background: Nano-specific inhalation exposure models could potentially be effective tools to assess and control worker exposure to nano-objects, and their aggregates and agglomerates (NOAA). However, due to the lack of reliable and consistent collected NOAA exposure data, the scientific basis for validation of the existing NOAA exposure models...
article 2017
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Bekker, C. (author), Brouwer, D.H. (author), van Duuren-Stuurman, B. (author), Tuinman, I.L. (author), Tromp, P.C. (author), Fransman, W. (author)
This paper reports a study of the dispersion of manufactured nano-objects (MNOs) through the air, both in time and space, during the use of two commercially available nano-spray products and comparable products without MNOs. The main objective was to identify whether personal exposure can occur at a greater distance than the immediate proximity...
article 2014
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van Triel, J.J. (author), van Bree, B.W.J. (author), Roberts, D.W. (author), Muijser, H. (author), Duistermaat, E. (author), Woutersen, R.A. (author), Kuper, C.F. (author)
Previously, a selection of low molecular weight contact and respiratory allergens had tested positive in both a skin and a respiratory local lymph node assay (LLNA), but formaldehyde was negative for sensitization by inhalation. To investigate whether this was due to intrinsic properties of aldehyde sensitizers, the structurally related allergen...
article 2011
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van Triel, J.J. (author), Arts, J.H. (author), Muijser, H. (author), Kuper, C.F. (author), TNO Kwaliteit van Leven (author)
Previously, the contact allergen dinitrochlorobenzene (DNCB) was identified as a sensitizer by inhalation in BALB/c mice; in addition, DNCB induced a lymphocytic infiltrate in the larynx of dermally sensitized Th1-prone Wistar rats upon a single inhalation challenge. In the present study, repeated inhalation exposures to DNCB were investigated...
article 2010
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Schinkel, J. (author), Fransman, W. (author), Heussen, H. (author), Kromhout, H. (author), Marquart, H. (author), Tielemans, E. (author), TNO Kwaliteit van Leven (author)
Objectives: For regulatory risk assessment under REACH a tiered approach is proposed in which the first tier models should provide a conservative exposure estimate that can discriminate between scenarios which are of concern and those which are not. The Stoffenmanager is mentioned as a first tier approach in the REACH guidance. In an attempt to...
article 2010
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de Jong, W.H. (author), Arts, J.H.E. (author), de Klerk, A. (author), Schijf, M.A. (author), Ezendam, J. (author), Kuper, C.F. (author), van Loveren, H. (author), TNO Kwaliteit van Leven (author)
There are currently no validated animal models that can identify low molecular weight (LMW) respiratory sensitizers. The Local Lymph Node Assay (LLNA) is a validated animal model developed to detect contact sensitizers using skin exposure, but all LMW respiratory sensitizers tested so far were also positive in this assay. Discrimination between...
article 2009
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Arts, J.H.E. (author), Muijser, H. (author), Jonker, D. (author), van de Sandt, J.J.M. (author), Bos, P.M.J. (author), Feron, V.J. (author), TNO Kwaliteit van Leven (author)
The OECD Health Effects Test Guidelines (TGs) provide guidance concerning the use of methods for the identification and characterization of hazards from chemical substances. These TGs are largely based on tests in routine use for many years and are known to yield information relevant to various types of toxicity. They have proven their value in...
article 2008
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Kuper, C.F. (author), Stierum, R.H. (author), Boorsma, A. (author), Schijf, M.A. (author), Prinsen, M. (author), Bruijntjes, J.P. (author), Bloksma, N. (author), Arts, J.H.E. (author), TNO Kwaliteit van Leven (author)
All LMW respiratory allergens known to date can also induce skin allergy in test animals. The question here was if in turn skin allergens can induce allergy in the respiratory tract. Respiratory allergy was tested in Th2-prone Brown Norway (BN) rats by dermal sensitization with the contact allergen dinitrochlorobenzene (DNCB; 1%, day 0; 0.5%,...
article 2008
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Fransman, W. (author), Schinkel, J. (author), Meijster, T. (author), van Hemmen, J. (author), Tielemans, E. (author), Goede, H. (author), TNO Kwaliteit van Leven (author)
Objectives: This paper describes the development and evaluation of an evidence database on the effectiveness of risk management measures (RMMs) to control inhalation exposure. This database is referred to as Exposure Control Efficacy Library (ECEL). Methods: A comprehensive review of scientific journals in the occupational hygiene field was...
article 2008
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Meijster, T. (author), Tielemans, E. (author), Schinkel, J. (author), Heederik, D. (author), TNO Kwaliteit van Leven (author)
Objectives: To effectively decrease occupational exposure to flour dust and related allergens, detailed information on exposure determinants and effectiveness of control measures is essential. In this paper, we use personal real-time exposure measurements to get more insight into the relationship between specific work characteristics, including...
article 2008
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Tielemans, E. (author), Noy, D. (author), Schinkel, J. (author), Heussen, H. (author), van der Schaaf, D. (author), West, J. (author), Fransman, W. (author), TNO Kwaliteit van Leven (author)
In The Netherlands, the web-based tool called 'Stoffenmanager' was initially developed to assist small- and medium-sized enterprises to prioritize and control risks of handling chemical products in their workplaces. The aim of the present study was to explore the accuracy of the Stoffenmanager exposure algorithm. This was done by comparing its...
article 2008
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Spaan, S. (author), Schinkel, J. (author), Wouters, I.M. (author), Preller, L. (author), Tielemans, E. (author), Nij, E.T. (author), Heederik, D. (author), TNO Kwaliteit van Leven (author)
Objectives: Workers in many industries are exposed to endotoxins, which may cause adverse health effects. In exposure assessment, information about exposure variability is essential. However, variability in exposure has rarely been investigated for biological agents and more specifically for endotoxin. Therefore, variance components and...
article 2008
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Tielemans, E. (author), Schneider, T. (author), Goede, H. (author), Tischer, M. (author), Warren, N. (author), Kromhout, H. (author), van Tongeren, M. (author), van Hemmen, J. (author), Cherrie, J.W. (author), TNO Kwaliteit van Leven (author)
The present paper proposes a source-receptor model to schematically describe inhalation exposure to help understand the complex processes leading to inhalation of hazardous substances. The model considers a stepwise transfer of a contaminant from the source to the receptor. The conceptual model is constructed using three components, i.e. (i) the...
article 2008
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Arts, J.H.E. (author), Muijser, H. (author), Kuper, C.F. (author), Woutersen, R.A. (author), TNO Kwaliteit van Leven (author)
The paper aims to evaluate the indoor air limit of 1 μg/m3 (0.8 ppb) formaldehyde as advised by the European Commission [the INDEX project; Kotzias, D., Koistinen, K., Kephalopoulos, S., Schlitt, C., Carrer, P., Maroni, M., Jantunen, M., Cochet, C., Kirchner, S., Lindvall, T., McLaughlin, J., Mølhave, L., de Oliveira Fernandes, E., Seifert, B.,...
article 2008
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Links, I. (author), Jagt, K.E.V.D. (author), Christopher, Y. (author), Lurvink, M. (author), Schinkel, J. (author), Tielemans, E. (author), Hemmen, J.J.V. (author), TNO Kwaliteit van Leven (author)
Exposure data on biocides are relatively rare in published literature, especially for secondary exposure. This is also the case for antifouling exposure. Therefore, a field study was carried out measuring exposure to antifouling paints. Both primary exposure (rolling and spraying) and secondary exposure (during sand blasting) were studied....
article 2007
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Pronk, A. (author), Preller, L. (author), Raulf-Heimsoth, M. (author), Jonkers, I.C.L. (author), Lammers, J.-W. (author), Wouters, I.M. (author), Doekes, G. (author), Wisnewski, A.V. (author), Heederik, D. (author), TNO Kwaliteit van Leven (author)
Rationale: Associations between oligomeric isocyanate exposure, sensitization, and respiratory disease have received little attention, despite the extensive use of isocyanate oligomers. Objectives: To investigate exposure-response relationships of respiratory symptoms and sensitization in a large population occupationally exposed to isocyanate...
article 2007
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Pronk, A. (author), Tielemans, E. (author), Skarping, G. (author), Bobeldijk, I. (author), van Hemmen, J. (author), Heederik, D. (author), Preller, L. (author), TNO Kwaliteit van Leven (author)
As part of a large-scale epidemiological study, occupational isocyanate exposure was assessed in spray-painting environments. The aim was to assess which compounds contribute to isocyanate exposure in car body repair shops and industrial painting companies, and to identify tasks with high risk of isocyanate exposure. Mainly personal task-based...
article 2006
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Meijster, T. (author), Tielemans, E. (author), de Pater, N. (author), Heederik, D. (author), TNO Kwaliteit van Leven (author)
Introduction: Recent studies have shown that even low exposure levels to flour dust and related allergens can cause severe respiratory symptoms. In The Netherlands the Dutch government and responsible branch organizations [from bakeries (traditional & industrial), flour mills and bakery ingredient producers] signed a covenant to reduce exposure...
article 2006
Searched for: subject:"Inhalation%5C+Exposure"
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