The FDA released guidance on elemental impurities drafted by the International Council for Harmonisation that would revise the permitted daily exposure for cadmium.

The draft, Q3D(R1) Elemental Impurities, proposes a new inhalation value of 3.4 micrograms/day, doubling the previous value of 1.7. The higher value corrects a previous calculation error in the PDE for cadmium by the inhalation route of exposure.

The agency called for comments by Aug. 13 on the draft document.