Characterization of paint dust aerosol generated from mechanical abrasion of TiO2-containing paints
| Autor: | Marie-Cecile G. Chalbot, Adam W. Nored, Ilias G. Kavouras |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Scanning electron microscope Public Health Environmental and Occupational Health Nanoparticle 02 engineering and technology respiratory system 010501 environmental sciences 021001 nanoscience & nanotechnology 01 natural sciences Mechanical abrasion complex mixtures humanities Aerosol Characterization (materials science) Chemical engineering Titanium dioxide nanoparticles 0210 nano-technology Spectroscopy 0105 earth and related environmental sciences |
| DOI: | 10.6084/m9.figshare.6406082 |
| Popis: | The purpose of the study was to determine the potential for release of titanium dioxide nanoparticles in paint dust. The coatings aerosol resuspension system was developed and used for testing the generation and physical, chemical, and morphological properties of paint dust particles from mechanical abrasion (i.e., sanding) of coated wood surfaces. The paint dust emissions from bare and coated wood surfaces with multiple coatings using variable sandpaper grits were evaluated. Substantially higher particle number concentrations were measured for paint dust containing particles in the nano range (particles with aerodynamic diameter less than 100 nm) than those measured for wood dust. The variability of particle number concentration and size distribution of paint dust derived under different conditions indicated that considerable quantities of nanoparticles might be released from mechanical abrasion of painted surfaces that may induce unhealthy exposure conditions. Moreover, spectroscopic and microscopic analysis identified the presence of paint and wood components in paint dust, including titanium dioxide agglomerates that were originally embedded in the paint. The agglomerates were mostly attached to particles with sizes |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|