Jeanna Bryner
Senior Writer
LiveScience.com 44 minutes ago
Paper money contains high traces of cocaine, regardless of whether or not the paper money came into direct contact with the drug. And U.S. bills take the top spot, covered in the greatest amount of the illegal powder, while Spanish notes are the most highly contaminated in Europe, a new study finds.
The findings, detailed in the latest issue of the journal Trends in Analytical Chemistry, reflect the popularity of the illicit drug, the researchers say.
"These findings should not be surprising, because cocaine and other drugs are traded using cash, which is handled by the same fingers that directly touch the drugs or wrappings," chemists Sergio Armenta and Miguel de la Guardia from the University of Valencia in Spain write. "Moreover, many cocaine users use a wrapped banknote to sniff this drug, so inducing direct cocaine contamination of the banknotes."
(snip)
German Euros contained levels of cocaine that were five times lower than the Spanish ones.
The chemists found U.S. bills contained an average of between 2.9 and 28.8 micrograms of cocaine depending on the year and city, with a maximum of more than 1,300 micrograms found on some 1996 bills...
http://news.yahoo.com/s/livescience/20080805/sc_livescience/highesttracesofcocainefoundonusbills