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Exposure to nanomaterials in consumer spray products available in the UK

Smith, Rachel; Wright, Matthew D.; Laycock, Adam; Marczylo, Tim

Abstract:
Products containing nanomaterials (NMs) (size < 100 nanometres) are rapidly entering the market, however little is known about inhalation exposures to NMs from their use. Here, we analysed representative consumer spray products available in the UK that claim (or are expected) to contain NMs, to assess potential NM exposure levels during use. In the absence of a UK-focused product inventory, we searched “The Nanodatabase” (nanodb.dk), which listed 269 (out of 3001) products for which inhalation was identified as an exposure pathway. None were available over-the-counter at large stores, but 40 were available on “.co.uk” websites (mainly Amazon). We obtained a representative sample (based on product type and claimed content e.g. silver, silica, gold) and found that 12 out of 16 products contained detectable NMs. We used a multi-method approach to characterise the NMs; inductively-coupled plasma mass spectrometry (ICP-MS), ultraviolet-visible spectroscopy and energy-dispersive x-ray spectroscopy to assess NM composition, and dynamic light scattering, nanoparticle tracking analysis, transmission electron microscopy and single particle ICP-MS to determine particle size and shape. ... mehr

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DOI: 10.5445/IR/1000096748
Veröffentlicht am 23.07.2019
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Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Aerosolforschung (IMK-AAF)
Publikationstyp Vortrag
Jahr 2019
Sprache Englisch
Identifikator KITopen-ID: 1000096748
Veranstaltung 7th International Symposium on Ultrafine Particles, Air Quality and Climate (2019), Brüssel, Belgien, 15.05.2019 – 16.05.2019
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