Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Several Tonnes Of Uranium And A Town Called Colonie

27.06.2007
Investigating the fate of depleted uranium particulate in the environment

Recent research by the Department of Geology at University of Leicester, and at the British Geological Survey aims to improve understanding of how depleted uranium particulate behaves in the environment. PhD research student Nicholas Lloyd has identified uranium oxide particulate that has survived more than 25 years in the environment, and depleted uranium contamination nearly 6 km from point of release.

The use of depleted uranium (DU) munitions by US and British forces has been highly controversial; on impact with armoured targets they shed uranium particulate that can be inhaled into the lungs. DU is both weakly radioactive and chemically toxic. Concerns raised by campaign groups have been the subject of numerous newspaper headlines, and it is frequently cited as a possible cause of Gulf War syndrome.

However, under the scrutiny of peer-review, scientific studies have so far failed to demonstrate a significant connection between inhalation exposure and human ill-health. One of the problems is that no studied non-occupational populations have been shown to have significant inhalation exposure to DU.

During the 1960s and ‘70s an estimated 5 tonnes of uranium was emitted into the environment, in a residential area of Colonie, NY, USA. Local residents are concerned that they were exposed to airborne particulate, and have campaigned for a health study. The current research could provide valuable baseline data for such a study.

The researchers led by Professor Randall Parrish collected hundreds of soil and dust samples last July, with the help of local residents and Dr John Arnason of SUNY at Albany. Soils and dusts have been examined using scanning electron microscopy, and reveal micrometer diameter uranium-rich particulate (invisible to the naked eye). These particles may be resuspended and inhaled. The samples have also been analysed by mass spectrometry, revealing contamination several hundreds of times greater than background near source, and trace contamination 35 cm below surface and as far afield as 5.8 km.

Nicholas said that the study by University of Leicester and the British Geological Survey aims to improve understanding of how depleted uranium particulate behaves in the environment. The study shows that uranium oxide particulate is both mobile and durable in the environment.

The research is being presented to the public at the University of Leicester on June 29. The Festival of Postgraduate Research introduces employers and the public to the next generation of innovators and cutting-edge researchers, and gives postgraduate researchers the opportunity to explain the real world implications of their research to a wide ranging audience.

More information on the Festival of Postgraduate Research at: www.le.ac.uk/gradschool/festival

Ather Mirza | University of Leicester
Further information:
http://www.le.ac.uk/gradschool/festival

More articles from Earth Sciences:

nachricht The unintended consequences of dams and reservoirs
14.11.2018 | Uppsala University

nachricht Earth's magnetic field measured using artificial stars at 90 kilometers altitude
14.11.2018 | Johannes Gutenberg-Universität Mainz

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

Im Focus: Coping with errors in the quantum age

Physicists at ETH Zurich demonstrate how errors that occur during the manipulation of quantum system can be monitored and corrected on the fly

The field of quantum computation has seen tremendous progress in recent years. Bit by bit, quantum devices start to challenge conventional computers, at least...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

European Space Talks: Weltraumschrott – eine Gefahr für die Gesellschaft?

23.10.2018 | Event News

 
Latest News

Epoxy compound gets a graphene bump

14.11.2018 | Materials Sciences

Microgel powder fights infection and helps wounds heal

14.11.2018 | Health and Medicine

How algae and carbon fibers could sustainably reduce the athmospheric carbon dioxide concentration

14.11.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>