Tag: "pollutants" at biology news
DNA Techniques Allow Scientists To Become Pollution Detectives.
...samples for thetwo-year survey, said bacteria from pollutants
causes fecalcoliform counts to rise. When the counts get too high, the state,fearing illness from consumption of raw oysters, closes the bayto oyster harvesting. "There's always been a question as to whether the bacteria wasnatural or manmade," Edmis...
PET Project Helps Reduce Pollution Threat From Heavy Metals
...eering have designed a new system to trapdangerous pollutants
in highway stormwater runoff. The system isbeing f...ay forthe last two years to determine exactly what pollutants
arepresent. Those same stormwater samples were used to test the lab-scale PET system, so the researc...
Bottom-up Ecological Processes Better For Clear Waters, Study Finds
.... In most lakes around the world, the most common pollutants
causing murkywater are actually nutrients that fuel the growth and number of tiny plantsat the bottom of the food chain. Limnologists have long recognized thatnitrogen (typically from sewage and fertilizer) and phosphorus (from nearbyconstruction or ...
U.S. Geological Survey 1998 Budget: Increased Support For Drinking Water, Earthquakes And Biological Sciences
... quality on biologicalresources and the effects of pollutants
on populations and ecosystems. Themonitoring of migratory birds will be enhanced. The potential threats ofendocrine disruptors in fish and wildlife species will be more closelyexamined. Research and information will be strengthened to continuesuppo...
Ten Years of Progress For Superfund Basic Research Program
...o is developing ultra-trace methods to detectmetal pollutants
including tin, arsenic and chromium. The key toaccurate risk assessment is knowing not only how much metal ispresent, but the exact form the metal is in. "For example, it's not uncommon for Gulf seafood to containarsenic," explained Caruso. "That cou...
Purdue Researchers Prod Plants To Clean Up Pollution
...lly plants can be used to restore sites and remove pollutants
at a fairly low cost." Initial commercial efforts at phytoremediation have been promising, but officials from the U.S. Department of Energy (DOE), which owns most toxic sites in the United States, are unsure about how well current processes will work...
Biosensor Is A Model For Widespread Testing Of Chemicals, Molecules
...tyof "target" molecules, from hormones in blood to pollutants
inriver water. Based on the work, published in the April 29 issue of the Proceedingsof the National Academy of Sciences, primary author Homme Hellinga predictsthe first useful application will be a portable "bedside laboratory"that physicians c...
Supelco Licenses ORNL Solid Sorbent Air Sampling Material
...AK RIDGE, Tenn., May 6, 1997 -- Detecting airborne pollutants
such as carcinogens and industrial effluents can be complex and costly. A new material developed by researchers at the Department of Energy's (DOE) Oak Ridge National Laboratory (ORNL) may find use as a cost-effective way of detecting and measuring ...
Bacterium gobbles up chlorinated pollutants
...m, coccoid Strain 195, perfectly reduces the toxic pollutants
tetrachloroethene and trichloroethene (also known as PCE, or perc, and TCE, respectively) to nontoxic ethene gas, the Cornell researchers report in the June 6 issue of Science. But the talented bug alone may not be the magic bullet against the se...
UW Smogmobile Offers Cleaner, Safer Alternative To Gas Or Electric Cars
... emissions and actually creates an opportunity for pollutants
to be removed from the air as its fuel is produced...e liquid nitrogen as it condenses. In the process, pollutants
such as carbon dioxide also are removed from the air and could be disposed of in a benign manner. He...
Study Focuses On How Plants Help Toxic Pollutants Travel Around The World
...aid. The interaction of persistent organic pollutants
with plant surfaces is"very important in predicting how these chemicals travel," she noted. Over the past 10-12 years, scientists have seen evidence that there is a"grasshopper effect" to the way chemicals travel. Chemicals "volatilize anddep...
Environmental Engineers Demonstrate Effective Method For Trapping Highway Pollutants
...'s important, because ifyou can't remove the toxic pollutants
for disposal, you wind upwith tons and tons of toxic waste. Lab-scale experiments indicate the back-washing process isfeasible. However, field tests are required to test theprocedures on a large-scale operation. Sansalone's research is funded by the ...
Research Reveals Link Between Development And Contamination In Urban Watersheds
...have been made to reduce auto emissionsand control pollutants
in urban runoff," said Pete Van Metre, USGShydrologist based in Austin, Texas and coordinator of the sediment coringproject. "These efforts have produced some promising results, for example,large reductions in lead in aquatic ecosystems and urban ai...
EPA Should Redirect Some Research on Toxic Airborne Particles
...studying how particulates might combine with other pollutants
to causeshort- and long-term health problems; and developing modeling tools to link the sources of particulate matter withpeople who have been exposed. The study was funded by the Environmental Protection Agency. The NationalResearch Council is ...
Reduced Nutrients Still Cause Problems In The Neuse And Tar-Pamlico Rivers
...ns about Pfiesteria, fishkills, algal growths, and pollutants
in these two river basins. A recently published USGS report indicates that concentrations of phosphorus and nitrogen in the Neuse River and Tar River exceed water-quality guidelines that were established by the U.S. Environmental Protection Agency i...
Purdue Herbarium -- A Noah's Ark For Egyptian Plants
...ears. "Herbarium specimens can also tell us about pollutants
in the environment," Swinehart says. "We can look for levels of a certain pollutant in plant tissues collected today and compare that to levels of the same pollutant in tissues of similar plants collected years ago. The comparison can tell you how po...
Keep Off The Grass - Reduce Air Pollution
...t lawns and grasslands release vast quantities of pollutants
into the air. Firing up the mower and cutting t...iginal level. To measure emissions of these air pollutants
from grass, scientists from Monash and CSIRO set up a transparent chamber in a grass paddock in Gi...
Highlighting USGS Science At AGU
... is monitoring and studying sediment transport and pollutants
in Boston Harbor; investigating coastal erosion du.... Learn how the USGS is studying the reduction of pollutants
in contaminated aquifers, such as on Cape Cod, by natural means. Friday, May 29Mopping Up Boston Ha...
The Fishing Hole Had Better Be Upstream From Commercial And Industrial Centers
... areas result in periodic high washes of water and pollutants
into streams.The pollutants
are those that land on the pavement, such as antifreeze and oil,as well as sediments containing toxi...
Purdue Golf Course Serves Double Duty As Research Lab
...lf course as it flows toward the bog; many of the pollutants
break down into harmless components. The water that passes through the course is drained into 15 acres of man-made wetlands that border the Celery Bog. From there, the water is used to irrigate the course, giving it another chance to be filtered ...
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