Seen in passing:

Safe Metal Levels in Wines From Italy, Brazil, Argentina
Wines from three of the 15 nations studied had safe levels of heavy metals:
Italy, Brazil, and Argentina.

Based on the maximum THQs for wines from each nation, here's the list of the
worst offenders:

a.. Hungary
b.. Slovakia
c.. France
d.. Austria
e.. Spain
f.. Germany
g.. Portugal
h.. Greece
i.. Czech Republic
j.. Jordan
k.. Macedonia
l.. Serbia
Hungary and Slovakia had maximum potential THQ values over 350. France,
Austria, Spain, Germany, and Portugal -- nations that import large
quantities of wine to the U.S. -- had maximum potential THQ values over 100.