The establishment of EVISA is funded by the EU through
the Fifth Framework Programme (G7RT- CT- 2002- 05112).
Supporters of EVISA includes:
acid soluble mercury
Mercury that passes through a 0.45 µm membrane filter after the sample is acidified to pH1-2.0 with nitric acid (EPA 1984). Strongly sorbed Hg is not measured, but all toxic forms as well as some non-toxic forms are measured.