Micro-organisms help protect drinking water from MTBE contamination
...icro-organisms are able to degrade MTBE tonontoxic byproducts if oxygen is present in the microbial environment," saysPaul Bradley, Ph.D., lead author for the study. "This finding indicates thatsuch microbial communities serve to protect surface drinking water supplies fromMTBE contamination." Rain is the prim...USGS Study Confirms An Urban Air-Pollution Problem At Mount Rainier National Park
...gerous pollutant. The colorless gas is formed from byproducts releasedduring the burning of fossil fuels, and can be toxic to both plants and animals,including humans, even at fairly low concentrations. "It's well documented that both periodic episodes of high ozone exposure andchronic moderate ozone exposure ...Trash From Crop-Processing Plant Harvested For Disease-Fighting Agents
...harvesting potential agents from thetrash piles of byproducts at crop-processing plants. Initial laboratory tests on cultured mammalian and human cells indicate anethanol extract of soybean molassesrepresses the ability of at least one dietary carcinogen to damage the DNA ofnormal cells, the researchers report....Sandia, University Of Montana Researchers Try Training Bees To Find Buried Landmines
... mine-leaked vapors andresidues and their chemical byproducts in the environment asthey are adsorbed on soil particles, permeated or leachedthrough soil, dissolved in water, and consumed by animalsand plants. By modeling the "fate and transport" ofexplosives and understanding where they concentrate in theenviro...Mixing Radiation, Minerals, Toxic Waste Could Be Cleanup Boon -- Or Kaboom
...activemetal oxides and organic chemicals that were byproducts of nuclear weaponsproduction. Metal oxides are driving reactions in which the radiation breaksdown the chemicals, she said. "By storing radioactive liquid with solid material, they are degradingcomponents of the mixture and producing gases," Gray sai......an outsideair. Concentrations of airborne bacteria byproducts were highest near thelifeguard's "crow's nest"--about 8 feet from the surface of the pool--than atpool level. "The bacteria may have been dead, but were still capable of causingan immune reaction in the lung," Dr. Rose said. Following treatment, the ...New Evidence Points To Role For Free Radicals In Alzheimer's Disease
...called isoprostanes. These isoprostanes are stable byproducts offree-radical catalyzed damage to lipids, or fatty molecules, found throughoutthe body, and they serve as quantitative markers for that damage. The lead author on the study is Domenico Pratico, MD, an assistantprofessor of pharmacology at Pe...Scientists Finger A Molecular Kingpin In Body's Response To Cigarettes
... like humans and mice breaksome down into harmless byproducts and turn others into moredangerous compounds that wreak havoc throughout the body, breakingup or binding to our DNA and turning on or off important genes.Cancer typically develops because of such damage to several genes.While scientists have long kno...Common Blood Pressure Drug May Promote Healthy Cells
...decreasing the number of free radicals -- chemical byproducts of normal aerobicactivities that can damage a cell's membrane, proteins and DNA. These newstudies contradict previous research performed in purely chemical systems thatsuggested hydralazine was a free-radical generator and potentially harmful tocells...New Contaminant Invades Arctic Air
...hence more activity, and also toreduce toxicity of byproducts of dechlorination that inhibit furtherdechlorination," said Stephen Boyd, Ph.D., lead scientist for the study and aprofessor in MSU's Institute for Environmental Toxicology. "No one else hasever tried this approach," according to Boyd. Prior to thi......o make yeast capable of producing other high-value byproducts in addition to ethanol. Ho's research has been funded by the Department of Energy through the Consortium for Plant Biotechnology Research Inc.; the U.S. Environmental Protection Agency; and industry, including SWAN Biomass. aas/9808 SP Ho...Third Annual Awards For Presidential Green Chemistry Challenge Recognize Innovations
...als. Such reactionsgenerate significant amounts of byproducts for expensive treatment anddisposal, as well as sq...back out in a stream ofinorganic salts and organic byproducts that is difficult and expensive totreat. The new process uses only hydrogen and catalyst to link the...Pollution, Food Stress Take Toll On Bald Eagles
...in the 1980s due to high levels ofdioxins -- toxic byproducts of the pulp bleaching process. Although the millsignificantly reduced its dioxin output about 10 years ago, the bald eagles havefailed to rebound. A 1995 study showed that three out of four nests in theclosure zone failed, compared to an almost 100 p...Two Environmental Articles: Deformed Frogs & Dioxin In Old Soil
...untsfrom various combustion sources or as unwanted byproducts in various chlorinatedchemical formulations. Because the PCDD/Fs may be a threat to human health, many industrializedcountries have attempted to locate the PCDD/F sources in order to take reductionmeasures, Jones says. But there is no agre...Electron Accelerator Provides Unique Proof Of Gene Repair Process In Living Cells
... ultraviolet radiation or free radicals, which are byproducts of several cellular processes," said UW Medical School assistant professor of medical genetics John Petrini. "But our cells are equipped with a system that constantly monitors and repairs the damaged DNA." Petrini and his colleagues have focused thei...UPMC Reports On New Liver Assist Device
...pass through, but prevents proteins,and other cell byproducts from the pig cells to get into the patient's blood. "Initially, the agreement between UPMC and Excorp allowed researchers togather engineering and pre-clinical information about the device," said JackPatzer, Ph.D., assistant professor of su...Antioxidants May Reduce Harmful Complications Of Diabetes
...tivechemicals that are the potentially destructive byproducts of the body's processof turning food into energy. Normally, the body produces enough antioxidants ofits own to keep the reactive oxygen from causing damage. "We were able to show that patients with poor control of their diabeteswho were be...Reclaimed Waste Water Can Augment Municipal Drinking-Water Supplies But Concerns Must Be Addressed
...hly treated waste water contains harmful levels of byproducts fromdisinfection processes such as chlorination, this issue should be addressed bythe research community. The Environmental Protection Agency should sponsor astudy to develop methods for better detection of new pathogens. Most outbreaksof waterborn......onexchange systems which are used to separa te the byproducts of chemical and nuclear processes. Traditional ion... byproductsare washed down the sewer system. Waste byproducts from industrial ion exchange processes, on the other hand, can beenvironmentally hazardous and costl......potential of various foodprocessing waste streams, byproducts and even agricultural crops to providefeedstock material for biomass conversion processes. In the past, researchgenerally has focused on conversion of biomass to fuels, but in more recentyears the emphasis has shifted to higher-value products such a...