Languages
Page last updated at 09:09 GMT, Monday, 17 August 2009 10:09 UK

US banknotes show cocaine traces

Dollars
The US capital has the highest level of banknotes that have traces of cocaine

The largest study of banknotes has found that 95% of dollar bills in Washington DC bear traces of the illegal drug cocaine.

The figure for the US capital is up 20% over two years.

Researchers at the University of Massachusetts in Dartmouth tested notes from more than 30 cities worldwide.

They say the rise observed in the US may be due to increased drug use caused by higher stress levels linked to the global economic downturn.

Bank notes can pick up traces of cocaine directly from users snorting it through rolled up bills or when cash is stacked together.

Stress factor?

Besides Washington, other big US cities such as Baltimore, Boston and Detroit had the highest average cocaine levels on their dollar bills.

Dr Yuegang Zuo, who led the research, said: "To my surprise, we're finding more and more cocaine in banknotes.

"I'm not sure why we've seen this apparent increase, but it could be related to the economic downturn, with stressed people turning to cocaine."

Other countries where notes were tested were Canada, Brazil, China and Japan.

China had the lowest rates, with only 12% of its bills contaminated.

In the US the cleanest bills were collected from Salt Lake City, home of the Church of Jesus Christ of Latter-Day Saints, better known as the Mormons.



Print Sponsor


SEE ALSO
Brittle euro notes baffle Germans
02 Nov 06 |  Europe
German euros 'full of cocaine'
25 Jun 03 |  Europe


FEATURES, VIEWS, ANALYSIS
Has China's housing bubble burst?
How the world's oldest clove tree defied an empire
Why Royal Ballet principal Sergei Polunin quit

BBC navigation

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.

Americas Africa Europe Middle East South Asia Asia Pacific