Silver nanoparticles used in textiles to control unpleasant odours pose “little danger” to human health and the aquatic environment, according to a new report from the Danish Environmental Protection Agency (EPA).

The study also discovered that none of the products marketed as “antibacterial” contained nanosilver in the first place, looking at a total of 94 textile products and overturning the theory that nanosilver-treated products were widely used in Denmark.

Looking further at 16 selected products, 15 were found to have silver content, but the study concluded that there appeared to be “no risk” of health or environmental effects.

However, the study also found that migration of silver to artificial saliva or sweat and during washing varied greatly, but could be substantial.