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Updated: Aug 14, 2026

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Whole-Body Nanoparticle Aerosol Inhalation Exposures
Published on: May 7, 2013
The effect of particle size on absorption of inhaled lead
Abstract:
Baboons were exposed to dust clouds of Ph3O4 of different size distribution but of the same total gravimetric concentration. Blood samples were taken immediately after each exposure of 4 hours and the total blood lead was determined. The exposure to the lead-bearing dust was stopped after four weeks, but the blood sampling continued for another six weeks. Graphs are presented comparing the patterns of lead absorption obtained with different sized lead particles. The coarser lead particles resulted in a higher blood lead concentration than the finer.

