Results 271 to 280 of about 204,944 (308)

Enantioselective degradation of warfarin in soils

Chirality, 2011
AbstractEnvironmental enantioselectivity information is important to fate assessment of chiral contaminants. Warfarin, a rodenticide and prescription medicine, is a chiral chemical but used in racemic form. Little is known about its enantioselective behavior in the environment.
Wenjian, Lao, Jay, Gan
openaire   +2 more sources

Degradation of carbaryl by soil microorganisms

Archives of Environmental Contamination and Toxicology, 1977
Four days after carbaryl-naphthyl-1-14C was mixed with soil from a field treated 6 months previously with 4 lb/A of the same insecticide, only 28% of the radiocarbon remained. Approximately 90% remained in soils with no history of pesticide applications.
L D, Rodriguez, H W, Dorough
openaire   +2 more sources

Study of the Degradation of Polydimethylsiloxanes on Soil

Environmental Science & Technology, 1995
The degradation of polydimethylsiloxanes (silicones) on a spiked standard soil matrix has been studied. Spiked soil was extracted to recover silicones, and the extract was examined by several analytical techniques, including gel permeation chromatography and high-pressure liquid chromatography with an inductively coupled plasma emission spectrometer as
J C, Carpenter, J A, Cella, S B, Dorn
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Soil Degradation

2008
Soil degradation is defined as physical, chemical and biological deterioration of soil, is likely to be the most im-portant problem for human nutritional demand in future. Increasing world population and reduction in agricultural land are serious thread for future. Therefore, in order to satisfy nutritional demands, it is important to protect soil, the
YILMAZ, Erdem, ALAGÖZ, Zeki
openaire   +1 more source

Carbofuran degradation in soil profiles

Journal of Environmental Science and Health, Part B, 1997
Two soils, Puyallup fine sandy loam from Puyallup, WA, and Ellzey fine sand from Hastings, FL, each with a prior history of carbofuran exposure but with different pedological and climatological characteristics, were found to exhibit enhanced degradation toward carbofuran in surface and subsurface soil layers.
S L, Trabue, X, Feng, A V, Ogram, L T, Ou   +3 more
openaire   +2 more sources

Simazine: Degradation by Soil Microorganisms

Science, 1963
A soil fungus, Aspergillus fumigatus Fres., is effective in the degradation of the herbicide 2-chloro-4,6-bis(ethylamino)- s -triazine (simazine). The degradation of both ring- and chain-labeled (C 14 ) simazine was observed in an unamended and an amended (sucrose ...
D D, Kaufman, P C, Kearney, T J, Sheets
openaire   +2 more sources

DEGRADATION OF SILICONE POLYMERS IN SOIL

Environmental Toxicology and Chemistry, 1994
Abstract Silicone polymers (polydimethylsiloxanes, or PDMS) are used in numerous personal care and household products, eventually enter wastewater treatment plants, and are later applied to the land as a component of sludge. The fate of silicones in soil is largely unknown, but this study shows that in a moist (0.2 MPa = 12% moisture ...
R.G. Lehmann, S. Varaprath, C.L. Frye
openaire   +1 more source

Soil Resources and Soil Degradation

2012
Including rocky surfaces, deserts, and ice-covered areas, there is 130,575,894 km2 land area in the globe. About 38.5 million km2 (29.45 % of the earth’s ice-free land surface) is too dry for human habitation, and about 20.2 million km2 (15.46 %) of the land occuring in the cold tundra zone is not much suitable for normal agriculture.
openaire   +1 more source

Degradation of juglone by soil bacteria

Journal of Chemical Ecology, 1988
Bacteria that can degrade juglone (5-hydroxy-1,4-naphthoquinone) were isolated from soil beneath black walnut trees. Autecological studies with one of these bacteria (Pseudomonas J1), demonstrated that it could grow rapidly using juglone as its sole source of carbon and energy.
openaire   +2 more sources

Mapping Soil Degradation

2020
Hoosbeek, M.R., Stein, A., Bryant, R.B.
openaire   +3 more sources