Navigation Links
U of T technique put to use to test clean up of contaminated groundwater
Date:1/30/2009

Cleaning up the dangerous contaminants dry-cleaning fluids, solvents and petroleum hydrocarbons found in underground water presents one of the most urgent challenges facing environmental science. A report issued today by the U.S. Environmental Protection Agency (EPA) sheds light on a new way to monitor and improve the success of clean-up efforts using a technique developed at the University of Toronto.

"The most common method to clean-up groundwater is biodegradation using microbes to consume the contaminants and break them down into more benign end products that are not harmful to the environment," says U of T geochemist Barbara Sherwood Lollar, the scientist who initiated the concept and goals for the EPA report and is one of its five international authors.

The report outlines how this can be done using a novel technique called Compound Specific Isotope Analysis, developed in U of T's Stable Isotope Laboratory. The elements of carbon that form the basis for the hydrocarbon contaminants actually come in two types called isotopes, explains Sherwood Lollar. "When microbes degrade contaminants, they prefer the lighter isotope carbon 12 over the heavier isotope carbon 13. The resulting change in the ratio of these isotopes in the contaminant itself is a dramatic and definitive indicator that the biodegradation is successfully taking place."

Beginning in the 1990s, U of T's Stable Isotope Laboratory has been an international pioneer in discovering how different carbon isotopes can be used to identify whether or not biodegradation is taking place. "Today, dozens of students in Canada have been trained in this method, drawn in by the fascinating combination of fundamental research that has important applications such as the clean-up of drinking water," says Sherwood Lollar. Over the past decade, as the new technique has become more widespread, centres for research and education - and even private companies have blossomed worldwide.

"Much of the research on new methods of analyzing groundwater contamination has been published in scientific and professional journals but this report written specifically for the practitioners in accessible language with clear procedural information and decision-making strategies is a milestone," says Sherwood Lollar.

"It is particularly gratifying to be able to take a technique out of the lab and to put it into the hands of the people working on this issue every day around the world," she says.


'/>"/>

Contact: Christine Elias
celias@artsci.utoronto.ca
University of Toronto
Source:Eurekalert

Related biology news :

1. New satellite techniques for looking at climate change
2. New computational technique allows comparison of whole genomes as easily as whole books
3. Novel technique changes lymph node biopsy, reduces radiation exposure
4. Novel technique changes lymph node biopsy, reduces radiaiton exposure
5. New technique is quantum leap forward in understanding proteins
6. New edition of laboratory manual includes cutting-edge techniques to study gene regulation
7. Novel technique for fluorescence tomography of tumors in living animals
8. These shells dont clam up: Innovative technique to record human impact on coastal waters
9. Einstein researchers develop technique to count messages made by single genes
10. These shells dont clam up: Innovative technique to record human impact on coastal waters
11. New technique eliminates toxic drugs in islet transplant in diabetic mice
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/4/2016)... 2016 The field of Human Microbiome ... most popular hubs of the biotechnology industry. While ... studies of human microbiota, have garnered a lot ... microbiome space has literally exploded in terms of ... report focuses on biomedical aspects of research, development, ...
(Date:2/3/2016)... 3, 2016 ... the "Emotion Detection and Recognition Market ... Others), Software Tools (Facial Expression, Voice Recognition ... Regions - Global forecast to 2020" ... http://www.researchandmarkets.com/research/d8zjcd/emotion_detection ) has announced the addition ...
(Date:2/2/2016)... NEW YORK , Feb. 2, 2016 Technology ... service presents an analysis of the digital and computed ... Malaysia , and Indonesia ... current trends and market size, as well as regional ... by country and discusses market penetration and market attractiveness, ...
Breaking Biology News(10 mins):
(Date:2/5/2016)... SAN DIEGO , Feb. 5, 2016 ... the region,s trusted information source for community, health and ... San Diego) will integrate to enhance care coordination ... people to the services they need and to better ... to improve care.   San Diego ...
(Date:2/4/2016)... New FDA action date of July 22, ... July 22, 2016   --> - ... - Lifitegrast has the potential to be the only ... signs and symptoms of dry eye disease in adults --> ... approved in the U.S. in the past decade indicated for the treatment of ...
(Date:2/4/2016)... SHENZHEN, China , Feb. 4, 2016 ... government, and various medical institutions attended a ceremony in ... provide integrative, personalized cell therapy in 2016. ... the "Shenzhen Clinical Translation Platform for Personalized Cell Therapy" ... Shenzhen Regional Cell Production Center, both subsidiaries of Beike ...
(Date:2/4/2016)... -- ContraVir Pharmaceuticals, Inc. (NASDAQ: CTRV ), a ... targeted antiviral therapies, announced today that it will present ... held February 8-9, 2016, at the Waldorf Astoria New ... Healthcare Conference, taking place in New York ... Sapirstein , Chief Executive Officer of ContraVir, will provide ...
Breaking Biology Technology: