Session 5B: Release characterization: from concentrations to quantitative release

Session chairs

Bon Ki Ku, Dr., Research Physical Scientist, National Institute for Occupational Safety and Health (NIOSH), USA, bik5@cdc.gov

Joonas Koivisto, Post.Doc., National Research Centre for the Working Environment (NRCWE), Denmark, jok@nrcwe.dk

Session abstract

Nanomaterials are commonly used as coatings or additives in conventional materials to improve the product durability, performance, or to add new functionalities. Nanomaterials are used both in industrial applications and daily products because it is simply economically beneficial.

The environmental and occupational impacts of nanomaterials can be estimated with measurements or mathematical modellings. In situ measurements are often considered too expensive technique because of the diversity of variables effecting on the results is challenging to control. However, exempt to worst case exposure assessment, mathematical modeling requires release characterization during different life-cycle stages of nano-enabled products. In this session, we welcome all studies related to

  • All release studies related to nanomaterial production, handling, formulation into product or article (mixing, spraying,…), and their release during life-cycle (artificial weathering, washing, leaching, contact, incineration, abrasion, shredding, landfill,…).
  • Metrology: What need to be reported for exposure and risk assessment?
  • Scalability of release from laboratory studies to real environment.
  • Harmonization and standardization of release Measurements.

Session program

  • Occupational exposure assessment to NOAA during production, formulation and assembly of nanoenabled products in several European platforms and pilot plants – Invited presentation
    Simon Clavaguera
  • Release of nanomaterials from consumer products during use and end-of-life – Invited presentation
    Alessio Boldrin
  • Engineered nanoparticle-containing consumer products in the Singapore retail market and likelihood of release into the aquatic environment
    Michael Riediker
  • Comparing the Venturi and rotating drum dustiness testing methods
    Douglas E Evans
  • Bayesian Belief Network to forecast nanomaterial release during waste shredding
    Neeraj Shandilya
  • Estimation of aerodynamic and diffusion diameters of carbon nanotube aerosol agglomerates using electron microscopy
    Bon Ki Ku