Somebody must have a financial interest in titanium dioxide.
NV? They use yellow on their side of the state line on such roads.
Toxic Tattoo Ink (Titanium Oxide) Accumulates In Lymph Nodes, Causing Life-Long Cancer Risk
"(Natural News) Scientists now warn that colored tattoos can increase the risk of cancer. The pigmented dyes used by most tattoo parlors contain a controversial chemical known as titanium dioxide. This compound is added to tattoo ink to give certain colors. But while the chemical is efficient in exacting the correct shade desired, it is also associated to an assortment of debilitating conditions, not least of which is cancer.