We need to look seriously at nanoparticle risks, not invent a nanohazard sign to stick on everything.

When a fire at the chemistry department of the University of Texas, Austin, several years ago required firefighters to enter the labs, they were horrified to discover that there were inflammable substances inside. The department briefly faced the threat of having to label every door with warnings to that effect (“Danger: this chemistry lab contains ethanol”).

Read Philip Ball’s column here.

We need to look seriously at nanoparticle risks, not invent a nanohazard sign to stick on everything.

When a fire at the chemistry department of the University of Texas, Austin, several years ago required firefighters to enter the labs, they were horrified to discover that there were inflammable substances inside. The department briefly faced the threat of having to label every door with warnings to that effect (“Danger: this chemistry lab contains ethanol”).

Read Philip Ball’s column here.