Nano particles

Nanoparticles are structures, nanometres (nm) in size, that usually contain only a few atoms.

This means that nanoparticles are around times larger than atoms and simple molecules.

As the diameter the surface to volume ratio .

nanoparticles show different properties to particles of the same material as their area to volume ratio is much larger.

Nanoparticles may

be harmful

have effects

Hard to establish the long-term effects as nano particles are a new technology

so the harmful effects have not been fully

To reduce the concerns

more research is needed to establish safe levels that are specific to each application or of nano particle

 labelling to show when nano particles used.