Kids are more exposed to harmful nanoparticles of titanium dioxide than adults, shows study.

Paul Westerhoff, professor of sustainable engineering, Arizona State University, who led the study, and colleagues pointed out that titanium dioxide was a common additive to many consumer products, from food to paint to cosmetics, the journal Environmental Science & Technology reports.
Westerhoff recommended that regulators shift their focus from the type of titanium dioxide used in paints and industrial processes to food-grade particles, because those were much more likely to enter the environment and pose a potential risk to humans and animals.
According to Westerhoff, the body releases the nanoparticles in faeces and urine, sending them to wastewater treatment plants, which cannot prevent the smallest particles from entering lakes and rivers, according to an Arizona statement.
Source-IANS