Navigation Links
Predicting amount of oil in contaminated soils

MADISON, WI, June 9th, 2010 Scientists are reporting a new technique for mapping and testing oil-contaminated soils. Traditionally, samples need to be collected from the field and returned to a lab for extensive chemical analysis, costing time and money when neither is readily available during a clean-up operation. The new method can take measurements in the field and accurately predict the total amount of petroleum contaminants in moist, unprepared soil samples.

The research team led was by soil scientists David Weindorf from Louisiana State University, Cristine Morgan of Texas Agrilife Research, and John Galbraith from Virginia Tech. The method they investigated used visible near infrared light with diffuse reflectance spectroscopy, shining a light on a sample and reading the reflecting wavelengths. This allowed the researchers to rapidly evaluate soils for the presence and amount of oil contamination quickly while in the field, without sending a sample to a laboratory and waiting for test results. The technique was used to predict total petroleum hydrocarbons in a variety of soils in southern Louisiana.

Results from the study were reported in the July-August 2010 issue of the Journal of Environmental Quality, a publication of the American Society of Agronomy, the Crop Science Society of America, and the Soil Science Society of America. Funded by the Louisiana Applied Oil Spill Research Program, the research was also presented at Clean Gulf 2009 in New Orleans, LA and the 2009 Soil Science Society of America International Annual Meetings in Pittsburgh, PA.

The study results demonstrated that the new method provided acceptable predictions of oil contamination compared to more traditional laboratory testing. The most successful method for scanning the materials was without additional drying and grinding, which released volatile hydrocarbons and caused inaccurate measurements. This indicates that on-site scanning of soils impacted by an oil spill provide superior results, since there is no loss of material through shipment or processing.

Somsubhra Chakraborty, LSU doctoral student and lead graduate student on the study, stated that "Since the task of identifying a specific petroleum signature is difficult when it is mixed with soil, the present feasibility study indicated that successful combination of chemometry and spectrometry...looks really promising for developing a methodology to identify petroleum contaminated soils in the near future. The fact that this spectroscopic technology does not need prior sample preparation has made it particularly applicable."

Research is ongoing at the Louisiana State University AgCenter to investigate the use of this method for mapping hydrocarbon contaminant plumes and evaluate the unique light signatures of different hydrocarbon compounds (tar, crude oil, diesel, and motor oil). Other research is evaluating predictive models that would be used in conjunction with on-site analysis. Ultimately, this research may lead to the use of airborne or satellite platforms to provide a new means of assessing both known and unknown areas of oil spill contamination.


Contact: Sara Uttech
American Society of Agronomy

Related biology news :

1. New biomarkers for predicting the spread of colon cancer
2. Predicting prognosis and treatment response in a subset of pancreatic cancer patients
3. Species distribution models are of only limited value for predicting future mammal distributions
4. Predicting cancer prognosis
5. Seeing the tree from the forest: Predicting the future of plant communities
6. Predicting risk of stroke from ones genetic blueprint
7. UBC study establishes formula for predicting climate change impact on salmon stocks
8. Predicting acute GVHD by gene expression could improve liver stem cell transplant outcomes
9. Predicting the distribution of creatures great and small
10. Predicting the perfect predator
11. Predicting the radiation risk to ESAs astronauts
Post Your Comments:
Related Image:
Predicting amount of oil in contaminated soils
(Date:4/26/2016)... and LONDON , ... Finacle, part of EdgeVerve Systems, a product subsidiary ... Onegini today announced a partnership to integrate the ...      (Logo: ) ... provide their customers enhanced security to access and ...
(Date:4/15/2016)... April 15, 2016 Research ... Gait Biometrics Market 2016-2020,"  report to their offering.  ... ) , ,The global gait biometrics market is ... during the period 2016-2020. Gait analysis ... can be used to compute factors that are ...
(Date:3/31/2016)... 2016  Genomics firm Nabsys has completed a financial ... Bready , M.D., who returned to the company in ... leadership team, including Chief Technology Officer, John Oliver ... Nurnberg and Vice President of Software and Informatics, ... Dr. Bready served as CEO of Nabsys from ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... Mass. , June 23, 2016   ... development of novel compounds designed to target cancer ... napabucasin, has been granted Orphan Drug Designation from ... the treatment of gastric cancer, including gastroesophageal junction ... stemness inhibitor designed to inhibit cancer stemness pathways ...
(Date:6/23/2016)... ... June 23, 2016 , ... Charm Sciences, Inc. is pleased ... received AOAC Research Institute approval 061601. , “This is another AOAC-RI approval of ... Salter, Vice President of Regulatory and Industrial Affairs. “The Peel Plate methods perform ...
(Date:6/23/2016)... ... 2016 , ... Supplyframe, the Industry Network for electronics hardware ... . Located in Pasadena, Calif., the Design Lab’s mission is to bring together ... built and brought to market. , The Design Lab is Supplyframe’s physical representation ...
(Date:6/23/2016)... June 23, 2016  Blueprint Bio, a company dedicated ... the medical community, has closed its Series A funding ... . "We have received a commitment from ... we need to meet our current goals," stated ... the runway to complete validation on the current projects ...
Breaking Biology Technology: