Quantitative assessment of inhalation exposure and deposited dose of aerosol from nanotechnology-based consumer sprays.

ABSTRACT: This study provides a quantitative assessment of inhalation exposure and deposited aerosol dose in the 14 nm to 20 μm particle size range based on the aerosol measurements conducted during realistic usage simulation of five nanotechnology-based and five regular spray products matching the nano-products by purpose of application. The products were also examined using transmission electron microscopy. In seven out of ten sprays, the highest inhalation exposure was observed for the coarse (2.5-10 μm) particles while being minimal or below the detection limit for the remaining three sprays. Nanosized aerosol particles (14-100 nm) were released, which resulted in low but measurable inhalation exposures from all of the investigated consumer sprays. Eight out of ten products produced high total d

SUBMITTER: Nazarenko Y 

PROVIDER: S-EPMC4303255 | biostudies-literature | 2014 Apr

REPOSITORIES: biostudies-literature