In Greenland, the average levels of lead and mercury are a staggering 20 to 50 times higher in newborn babies' cord blood than the US and Europe, according to a 2002 report from the Arctic Monitoring and Assessment Program.
A. In Greenland, the average levels of lead and mercury are a staggering 20 to 50 times higher in newborn babies' cord blood than the US and Europe
-- babies to "US and Europe" comparison
B. The average levels of lead and mercury in Greenland are a staggering 20 to 50 times higher than in newborn babies cord blood in urban areas of the US and Europe
-- comparison between Greenland and "babies in US and Europe"
C. The average levels of lead and mercury in newborn babies cord blood are a staggering 20 to 50 times higher in Greenland than in urban areas of the US and Europe
-- CORRECT, in the format "levels in something are higher in area X than in area Y" with the correct comparison
D. In Greenland, in newborn babies cord blood, the average levels of lead, and mercury are a staggering 20 to 50 times the urban areas of the US and Europe
-- average levels of lead is multiplied to "urban areas of the US and Europe" (???)
E. The average
levels of lead and mercury in the cord blood of newborn babies
is a staggering 20 to 50 times higher than the urban areas of the US and Europe
-- wrong SVA. So, it should be
C