A skull and crossbones, a running person and radiating ionizing waves, all on a deep red triangle, joined other more common warning symbols today as part of a United Nations effort to reduce ...

There is no better way to convey danger than the biological hazard symbol.Its ascent to the top of the warning-symbol heap has been relatively swift. Though the skull and crossbones has been ...

With radiating waves, a skull and crossbones and a running person, a new ionizing radiation warning symbol is being introduced to supplement the traditional international symbol for radiation, the ...