Is AdBlue Hazardous?

No, Adblue® is not a hazardous substance. It has no known significant effects or critical hazards.

The raw material, urea, even occurs naturally in our digestive system. However, we strongly dissuade you to ingest AdBlue® or inhale AdBlue® vapors, due to the risk of an allergic reaction.
AdBlue® is corrosive and can dissolve materials that are not listed as AdBlue® proof in ISO 22241. These materials could create malfunctions in your SCR-catalyst.