University of Helsinki Reports Findings in Environmental Research and Public Health (Range-Finding Risk Assessment of Inhalation Exposure to Nanodiamonds in a Laboratory Environment)
By a News Reporter-Staff News Editor at Health & Medicine Week -- Researchers detail new data in Environmental Health. According to news reporting originating in Helsinki, Finland, by NewsRx journalists, research stated, "This study considers fundamental methods in occupational risk assessment of exposure to airborne engineered nanomaterials. We discuss characterization of particle emissions, exposure assessment, hazard assessment with in vitro studies, and risk range characterization using calculated inhaled doses and dose-response translated to humans from in vitro studies."
The news reporters obtained a quote from the research from the University of Helsinki, "Here, the methods were utilized to assess workers' risk range of inhalation exposure to nanodiamonds (NDs) during handling and sieving of ND powder. NDs were agglomerated to over 500 nm particles, and mean exposure levels of different work tasks varied from 0.24 to 4.96 mu g.m(-3) (0.08 to 0.74 cm(-3)). In vitro-experiments suggested that ND exposure may cause a risk for activation of inflammatory cascade. However, risk range characterization based on in vitro dose-response was not performed because accurate assessment of delivered (settled) dose on the cells was not possible."
According to the news reporters, the research concluded: "Comparison of ND exposure with common pollutants revealed that ND exposure was below 5 mu g.m(-3), which is one of the proposed exposure limits for diesel particulate matter, and the workers' calculated dose of NDs during the measurement day was 74 ng which corresponded to 0.02% of the modeled daily (24 h) dose of submicrometer urban air particles."
For more information on this research see: Range-Finding Risk Assessment of Inhalation Exposure to Nanodiamonds in a Laboratory Environment. International Journal of Environmental Research and Public Health, 2014;11(5):5382-5402. International Journal of Environmental Research and Public Health can be contacted at: Mdpi Ag, Postfach, Ch-4005 Basel, Switzerland (see also Environmental Health).
Our news correspondents report that additional information may be obtained by contacting A.J. Koivisto, University of Helsinki, Dept. of Phys, FI-00014 Helsinki, Finland. Additional authors for this research include J.E. Palomaki, A.K. Viitanen, K.M. Siivola, I.K. Koponen, M.Z. Yu, T.S. Kanerva, H. Norppa, H.T. Alenius, T. Hussein, K.M. Savolainen and K.J. Hameri.
Keywords for this news article include: Europe, Finland, Helsinki, Environmental Health
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