http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (PhysOrg.com) -- Researchers at North Carolina State University are working to demonstrate that trees can be used to degrade or capture fuels that leak into soil and ground water. Through a process called phytoremediation - literally a `green` technology - plants and trees remove pollutants from the environment or render them harmless. http://www.physorg.com/news172428745.html Space & Earth Thu, 17 Sep 2009 18:30:01 EST news172428745 (AP) -- Later this month, the first trainloads of PCB-tainted sludge dredged from the Hudson River will arrive and, in the eyes of critics, will turn a stretch of West Texas into New York's "pay toilet." http://www.physorg.com/news164877380.html Space & Earth Mon, 22 Jun 2009 08:20:02 EST news164877380 The legacy of nuclear weapons and nuclear energy development has left ground water and sediment at dozens of sites across the United States and many more around the world contaminated with uranium. The uranium is transported through ground water as uranyl (U6+). http://www.physorg.com/news154615414.html Space & Earth Mon, 23 Feb 2009 12:44:42 EST news154615414 It's a 500-pound gorilla that Robert Criss, Ph.D., professor of earth and planetary sciences in Arts & Sciences at Washington University in St. Louis, sees standing on the speaker's dais at political rallies, debates and campaigns. Its name is population growth. http://www.physorg.com/news142676415.html Space & Earth Wed, 08 Oct 2008 09:20:15 EST news142676415 Nitrate is the most common chemical contaminant in the world's ground water, including in aquifers used for drinking-water supply. Nitrate in drinking water of the United States is regulated by the U.S. Environmental Protection Agency (USEPA) because of concerns related to infant health and possible cancer risks. Use of man-made synthetic fertilizers has steadily increased since World War II, raising the potential for increased nitrate contamination of the nation's ground water, despite efforts in recent decades to improve land-management practices. http://www.physorg.com/news140866907.html Space & Earth Wed, 17 Sep 2008 10:41:47 EST news140866907 Numerous studies over the past four decades have established that pesticides, which are typically applied at the land surface, can move downward through the unsaturated zone to reach the water table at detectable concentrations. The downward movement of pesticide degradation products, formed in situ, can also contribute to the contamination of ground water. Once in ground water, pesticides and their degradation products can persist for years, depending upon the chemical structure of the compounds and the environmental conditions. http://www.physorg.com/news134129966.html Space & Earth Tue, 01 Jul 2008 11:19:26 EST news134129966