Humus/Mineral interaction

University Park, Pa. --- A group of Penn State-led researchers has shown that, for some fossil fuel-based pollutants, increasing the humus content of the soil increases, rather than decreases, the likelihood that the contaminant will move to ground water.

Dr. Jon Chorover, assistant professor of environmental soil chemistry, says, "The general belief is that, as you increase the organic matter in soil, you increase the retention of contaminants. We found that that is not always the case. It depends on the nature of the compound."

Chorover and his colleagues at Penn State's Environmental Resources Research Institute and Ohio State University looked at quinoline, a nitrogen heterocyclic compound (NHC), that has been little studied to date. Quinoline belongs to the broad group of environmental contaminants, termed ionizable PACs (polycyclic aromatic compounds), often found in sites polluted by fossil fuels, solvents, greases, creosote and coal tar.

They found that if a soil is low in organic matter, quinoline is more likely to become strongly bound to the soil and less likely to move to ground water. However, in its strongly bound state, the pollutant is also less likely to be broken down by microrganisms.

The researchers detail their results in the just released current issue of the Soil Science Society of America Journal in a paper, "Quinoline Sorption on Kaolinite-Humic Acid Complexes."

Chorover's co-authors are Mary Kay Amistadi, research support associate in Penn State's Department of Agronomy; Dr. William D. Burgos, Penn State assistant professor of civil and environmental engineering; and Dr. Patrick G. Hatcher, professor of environmental chemistry, Ohio State University.

The study also shows that mineral interactions with humus were key to whether quinoline was retained in soil. When humic substances coated the mineral phase, quinoline was less likely to adhere. However, when the min

Contact: Barbara Hale
Penn State

Page: 1 2

Related biology news :

1. New technique helps scientists reveal interactions between genes and drugs
2. Rutgers chemist uses NMR to elucidate protein-DNA interaction
3. Findings suggest need for new view of p53 cancer proteins interaction with DNA
4. A pregnant pause for unexpected interactions
5. Butterflies & the hormonal basis of interactions between life histories & morphology
6. Seeing the forest for the trees: The future of environmental policy lies in interaction
7. Gene interactions control circadian clock in plants, study finds
8. Ability to smell food regulated by enzymes interaction with RNA interference pathway
9. Close interaction seen between blood vessel development and fat tissue formation
10. Unzipping double helix to study protein-DNA interaction
11. Invariant properties in coevolutionary networks of plant-animal interactions

Post Your Comments:

(Date:10/29/2015)... OXFORD, Connecticut , October 29, 2015 /PRNewswire/ ... "Company"), a biometric authentication company focused on the ... Wocket® smart wallet announces that StackCommerce, a leading ... will be featuring the Wocket® smart wallet on ... NXTD ) ("NXT-ID" or the "Company"), a ...
(Date:10/27/2015)... , Oct. 27, 2015 Synaptics Inc. (NASDAQ: ... announced that Google has adopted the Synaptics ® ... solutions to power its newest flagship smartphones, the Nexus ... --> --> ... to provide strategic collaboration in the joint development of ...
(Date:10/23/2015)... 23, 2015 Research and Markets ( http://www.researchandmarkets.com/research/zl6bz4/global_voice ... Voice Recognition Biometrics Market 2015-2019" report to their ... The global voice recognition biometrics market to grow ... --> --> The report, ... based on an in-depth market analysis with inputs from ...
Breaking Biology News(10 mins):
(Date:11/25/2015)... 25, 2015 /PRNewswire/ - Aeterna Zentaris Inc. (NASDAQ:  AEZS; ... and prospects remain fundamentally strong and highlights the ... recently received DSMB recommendation to continue the ZoptEC ... of the final interim efficacy and safety data ... in men with heavily pretreated castration- and Taxane-resistant ...
(Date:11/25/2015)... ... November 25, 2015 , ... Jessica Richman and ... early in their initial angel funding process. Now, they are paying it forward ... make early stage investments in the microbiome space. In this, they join ...
(Date:11/24/2015)... DIEGO , Nov. 24, 2015 Halozyme Therapeutics, Inc. ... Healthcare Conference in New York on Wednesday, ... Helen Torley , president and CEO, will provide a corporate ... New York at 1:00 p.m. ET/10:00 a.m. PT ... and investor relations, will provide a corporate overview. --> ...
(Date:11/24/2015)... Nov. 24, 2015 /PRNewswire/ - Aeterna Zentaris Inc. (NASDAQ: ... on behalf of the Toronto Stock Exchange, confirms that ... are no corporate developments that would cause the recent ... --> --> About Aeterna Zentaris Inc. ... --> Aeterna Zentaris is a specialty biopharmaceutical ...
Breaking Biology Technology:
Cached News: