Duke develops new UV measurement tool

Nov 02, 2005

Researchers at Duke University's Pratt School of Engineering have developed a new way to measure microbes' exposure to ultraviolet light.

The researchers say their "microsphere dosimeter" tool could bolster efforts to use UV light to improve the quality and safety of U.S. tap water.

The novel technique developed by Karl Linden and colleagues is believed to be the first direct test of how much UV light microorganisms in fluids have been exposed to -- a critical step in validating the use of UV light treatment for preventing the spread of infection through drinking water.

Linden said the new findings offer many fundamental and practical advances for UV reactor evaluation and testing, as well as helping validate and improve the accuracy of mathematical models for estimating the efficiency of water treatment with UV.

The technique is described in the Nov. 15 issue of Environmental Science and Technology.

Copyright 2005 by United Press International

Explore further: Aboriginal people – how to misunderstand their science

add to favorites email to friend print save as pdf

Related Stories

Recommended for you

Aboriginal people – how to misunderstand their science

39 minutes ago

Just one generation ago Australian schoolkids were taught that Aboriginal people couldn't count beyond five, wandered the desert scavenging for food, had no civilisation, couldn't navigate and peacefully ...

Poll: Big Bang a big question for most Americans

5 hours ago

Few Americans question that smoking causes cancer. But they have more skepticism than confidence in global warming, the age of the Earth and evolution and have the most trouble believing a Big Bang created the universe 13.8 ...

Egypt archaeologists find ancient writer's tomb

Apr 19, 2014

Egypt's minister of antiquities says a team of Spanish archaeologists has discovered two tombs in the southern part of the country, one of them belonging to a writer and containing a trove of artifacts including reed pens ...

User comments : 0

More news stories

Poll: Big Bang a big question for most Americans

Few Americans question that smoking causes cancer. But they have more skepticism than confidence in global warming, the age of the Earth and evolution and have the most trouble believing a Big Bang created the universe 13.8 ...

Atom probe assisted dating of oldest piece of earth

(Phys.org) —It's a scientific axiom: big claims require extra-solid evidence. So there were skeptics in 2001 when University of Wisconsin-Madison geoscience professor John Valley dated an ancient crystal ...