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The establishment of EVISA is funded by the EU through the Fifth Framework Programme (G7RT- CT- 2002- 05112).

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total gaseous mercury (TGM)

TGM is a mercury fraction operationally defined as species passing through a 0.45 µm filter or some other simple filtration device such as quartz wool plugs, and which are collected on gold or other collection material. TGM is mainly composed of elemental mercury vapor with minor fractions of other volatile species such as HgCl2, CH3HgCl or (CH3)2Hg.


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