Does colored paper money cause cancer?

National circulation of paper money is uniformly printed, theoretically the material is special, not so much as to contain substances harmful to health, but in circulation stained with bacteria and harmful substances may not be said.

But most of the dyes used in ordinary colored plutonium or other banknotes are of poor quality and have a high probability of containing toxic substances. Those who work in related industries for a long time should pay attention to respiratory hygiene and so on.

It is recommended not to swallow any coin notes etc.