HOME >> BIOLOGY >> NEWS
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
bah@psu.edu
814-865-9481
Penn State
27-Sep-1999


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:
*Name:
*Comment:
*Email:


(Date:3/14/2016)... Allemagne, March 14, 2016 ... - --> - Renvoi : image disponible ... --> --> DERMALOG, ... fournit de nouveaux lecteurs d,empreintes digitales pour l,enregistrement ... DERMALOG sera utilisé pour produire des cartes d,identité ...
(Date:3/11/2016)... March 11, 2016 --> ... research report "Image Recognition Market by Technology (Pattern Recognition), ... Advertising), by Deployment Type (On-Premises and Cloud), by Industry ... published by MarketsandMarkets, the global market is expected to ... 29.98 Billion by 2020, at a CAGR of 19.1%. ...
(Date:3/10/2016)... 2016   Unisys Corporation (NYSE: UIS ) ... (CBP) is testing its biometric identity solution at the Otay ... to help identify certain non-U.S. citizens leaving the country. ... to help determine the efficiency and accuracy of using biometric ... will run until May 2016. --> the ...
Breaking Biology News(10 mins):
(Date:5/26/2016)... ... May 26, 2016 , ... FireflySci ... used in leading laboratories all over the globe. Their cute firefly logo has ... manufacturing awesome cuvettes, FireflySci makes spectrophotometer calibration standards that never require recalibration. ...
(Date:5/25/2016)... ... May 25, 2016 , ... Founder of the Fitzmaurice Hand ... and surgery of the hand by the National Board of Physicians and Surgeons, ... and beyond in his pursuit of providing the most comprehensive, effective treatment for ...
(Date:5/25/2016)... ... , ... Lady had been battling arthritis since the age of two and ... Lady’s owner Hannah sought the help of Dr Jeff Christiansen of Superior Veterinary ... ligament and help with the pain of Lady’s arthritis. Dr Christiansen suggested that in ...
(Date:5/24/2016)... ... 2016 , ... Last week, Callan Capital, an integrated wealth management firm specializing ... of San Diego Life Science event at the Estancia La Jolla Resort and Spa. ... with speakers Dr. Rich Heyman, former CEO of Aragon and Seragon, and Faheem Hasnain, ...
Breaking Biology Technology:
Cached News: