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Emissions and exposures of graphene nanomaterials, titanium dioxide nanofibers, and nanoparticles during down-stream industrial handling

Lovén, Karin LU ; Franzén, Sara M. LU ; Isaxon, Christina LU ; Messing, Maria E. LU ; Martinsson, Johan LU ; Gudmundsson, Anders LU ; Pagels, Joakim LU and Hedmer, Maria LU orcid (2021) In Journal of Exposure Science & Environmental Epidemiology 31(4). p.736-752
Abstract

Today, engineered nanomaterials are frequently used. Nanosized titanium dioxide (TiO2) has been extensively used for many years and graphene is one type of emerging nanomaterial. Occupational airborne exposures to engineered nanomaterials are important to ensure safe workplaces and to extend the information needed for complete risk assessments. The main aim of this study was to characterize workplace emissions and exposure of graphene nanoplatelets, graphene oxide, TiO2 nanofibers (NFs) and nanoparticles (NPs) during down-stream industrial handling. Surface contaminations were also investigated to assess the potential for secondary inhalation exposures. In addition, a range of different sampling and aerosol... (More)

Today, engineered nanomaterials are frequently used. Nanosized titanium dioxide (TiO2) has been extensively used for many years and graphene is one type of emerging nanomaterial. Occupational airborne exposures to engineered nanomaterials are important to ensure safe workplaces and to extend the information needed for complete risk assessments. The main aim of this study was to characterize workplace emissions and exposure of graphene nanoplatelets, graphene oxide, TiO2 nanofibers (NFs) and nanoparticles (NPs) during down-stream industrial handling. Surface contaminations were also investigated to assess the potential for secondary inhalation exposures. In addition, a range of different sampling and aerosol monitoring methods were used and evaluated. The results showed that powder handling, regardless of handling graphene nanoplatelets, graphene oxide, TiO2 NFs, or NPs, contributes to the highest particle emissions and exposures. However, the exposure levels were below suggested occupational exposure limits. It was also shown that a range of different methods can be used to selectively detect and quantify nanomaterials both in the air and as surface contaminations. However, to be able to make an accurate determination of which nanomaterial that has been emitted a combination of different methods, both offline and online, must be used.

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author
; ; ; ; ; ; and
author collaboration
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Aerosol, Direct-reading instruments, Electron microscopy, Occupational exposure, PIXE, Thermal-optical carbon analysis
in
Journal of Exposure Science & Environmental Epidemiology
volume
31
issue
4
pages
17 pages
publisher
Nature Publishing Group
external identifiers
  • scopus:85110082932
  • pmid:32546827
  • scopus:85110082932
ISSN
1559-064X
DOI
10.1038/s41370-020-0241-3
language
English
LU publication?
yes
id
8a7f4e01-30b6-4245-81ef-95addbbddc2c
date added to LUP
2021-01-15 16:02:02
date last changed
2024-06-27 06:59:21
@article{8a7f4e01-30b6-4245-81ef-95addbbddc2c,
  abstract     = {{<p>Today, engineered nanomaterials are frequently used. Nanosized titanium dioxide (TiO<sub>2</sub>) has been extensively used for many years and graphene is one type of emerging nanomaterial. Occupational airborne exposures to engineered nanomaterials are important to ensure safe workplaces and to extend the information needed for complete risk assessments. The main aim of this study was to characterize workplace emissions and exposure of graphene nanoplatelets, graphene oxide, TiO<sub>2</sub> nanofibers (NFs) and nanoparticles (NPs) during down-stream industrial handling. Surface contaminations were also investigated to assess the potential for secondary inhalation exposures. In addition, a range of different sampling and aerosol monitoring methods were used and evaluated. The results showed that powder handling, regardless of handling graphene nanoplatelets, graphene oxide, TiO<sub>2</sub> NFs, or NPs, contributes to the highest particle emissions and exposures. However, the exposure levels were below suggested occupational exposure limits. It was also shown that a range of different methods can be used to selectively detect and quantify nanomaterials both in the air and as surface contaminations. However, to be able to make an accurate determination of which nanomaterial that has been emitted a combination of different methods, both offline and online, must be used.</p>}},
  author       = {{Lovén, Karin and Franzén, Sara M. and Isaxon, Christina and Messing, Maria E. and Martinsson, Johan and Gudmundsson, Anders and Pagels, Joakim and Hedmer, Maria}},
  issn         = {{1559-064X}},
  keywords     = {{Aerosol; Direct-reading instruments; Electron microscopy; Occupational exposure; PIXE; Thermal-optical carbon analysis}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{736--752}},
  publisher    = {{Nature Publishing Group}},
  series       = {{Journal of Exposure Science & Environmental Epidemiology}},
  title        = {{Emissions and exposures of graphene nanomaterials, titanium dioxide nanofibers, and nanoparticles during down-stream industrial handling}},
  url          = {{http://dx.doi.org/10.1038/s41370-020-0241-3}},
  doi          = {{10.1038/s41370-020-0241-3}},
  volume       = {{31}},
  year         = {{2021}},
}