22 Titanium dioxide (TiO2) nanoparticles are frequently present in face masks: - A new study with scanning transmission electron microscopic & energy dispersive X-ray spectroscopy. - TiO2 i s a suspected human carcinogen when inhaled ... (www.nature.com) posted 2 years ago by penisse 2 years ago by penisse +22 / -0 7 comments share 7 comments share save hide report block hide replies
Titanium dioxide is the white pigment in paint. We're exposed to it all over the place, but probably in low concentrations.