Anti-microbial sprays containing titanium dioxide nanoparticles are unlikely to pose a health risk to consumers but workers should avoid extended exposure, according to US researchers.
A team led by Vincent Castranova from the US Consumer Product Safety Commission exposed rats to a consumer titanium dioxide-based spray for up to four days. While low and middle doses had no significant effect on health, a high dose of 3,638 mg/m3, caused significant increases in breathing rate, pulmonary inflammation, and lung cell injury.
A team led by Vincent Castranova from the US Consumer Product Safety Commission exposed rats to a consumer titanium dioxide-based spray for up to four days. While low and middle doses had no significant effect on health, a high dose of 3,638 mg/m3, caused significant increases in breathing rate, pulmonary inflammation, and lung cell injury.
The “results suggest that occasional consumer use of this antimicrobial spray product should not be a hazard,” say the researchers. “Extended exposure of workers routinely applying this product to surfaces should be avoided,” they add.
The research is published in Inhalation Toxicology.
Fonte: Chemical Watch
