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Citation
Tags
HERO ID
90674
Reference Type
Journal Article
Title
Assessing exposure to airborne nanomaterials: Current abilities and future requirements
Author(s)
Maynard, AD; Aitken, RJ
Year
2007
Is Peer Reviewed?
1
Journal
Nanotoxicology
ISSN:
1743-5390
EISSN:
1743-5404
Volume
1
Issue
1
Page Numbers
26-41
DOI
10.1080/17435390701314720
Web of Science Id
WOS:000260264200003
Abstract
For over half a century, health-related aerosol exposure measurements have been characterized in terms of the mass of material present per unit volume of air. Yet recent research has challenged the applicability of this paradigm to airborne nanometer-scale particles (nanoparticles) and nanometer-structured particles (nanostructured particles). By classifying engineered nanoparticles into categories based on physical/chemical structure, and relating these categories to health impact-relevant attributes, we have explored the applicability of different physical exposure metrics to a range of particle class/attribute combinations. Using this approach, it is clear that no single method for monitoring nanoaerosol exposure will suit all nanomaterials. Rather, there will be occasions where particle number, surface area and even mass concentration measurements will play an important role in evaluating potential impact. Correspondingly, currently available techniques to measure exposure against these three metrics are reviewed. While current methods enable aerosol concentration to be evaluated against all three metrics, most techniques are inappropriate for making routine personal exposure measurements on a regular basis. We therefore explore the idea of a universal aerosol monitor, which would enable personal exposure measurements to be collected for all three metrics simultaneously, while being inexpensive enough to encourage widespread use. Such a device would provide an economical and adaptable solution to monitoring exposure to nanostructured aerosols, as both the materials and information on the potential risks they present are developed.
Keywords
Nanotechnology; nanomaterials; nanoparticle; measurement; aerosol; exposure measurement
Tags
•
ISA-NOx (2016)
Considered
Health Effects
•
Nanoscale Carbon
All References Cited
External Review Draft
Exposure Uptake Dose
Peer Reviewed Draft
Exposure, Uptake, and Dose
Priority Area: Ch. 4 and Appendix E
Final Case Study
•
Nanoscale Silver
External Review Draft
Final Case Study
Introduction to Document, Silver and Nanoscale Silver
Transport, Transformation and Fate
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