The Guidelines for drinking-water quality (GDWQ) are updated through a “rolling revision” process which ensures that the GDWQ presents the latest scientific evidence and addresses key concerns raised by countries.
Nickel is included in the rolling revision of the GDWQ and the draft revised background document is now available for review. This document and public review form can be found at this link. Comments are requested by 6 July 2021.
Public Release.
More on this here.