Tag: "drainage" at biology news
PET Project Helps Reduce Pollution Threat From Heavy Metals
...modificationof the current systems used to improve drainage
under highways,so it's expected to be easy to install and relativelyinexpensive. There are two key components to the system. The first is a bedof oxide-coated sand which attracts and holds onto heavy metalsin the storm runoff. Lab-scale experiments d...
Restoring Farm Land To Natural Wetlands Key To Stemming Flood
... as "commons." "Private hunting clubs and, later, drainage
and levee districts,built fences and levees in the bottomlands of the Illinois River and appropriatedthe right to hunt, fish and gather resources," Schneider said. "Thelegacy of the levee districts on the Illinois River has been twofold: thedeteriora...
Environmental Engineers Demonstrate Effective Method For Trapping Highway Pollutants
... PET replaces the normal sandused in highway storm drainage
systems with an iron oxide coatedsand. That makes the sand signficantly more effective at trappingheavy metals such as cadmium, copper, lead and zinc. "Polluted water flows in, and clean water flows out,"explained Steven Buchberger, associate profess...
Selenium Soil Contamination: Possible New Approach Identified
...the early 1980s have been attributed toselenium in drainage
from irrigation water. The incident was a graphicdemonstration of how agricultural development can result in the accumulation ofabnormally high and potentially lethal concentrations of selenium and othertrace contaminants in soils and sediments. ...
Study Of Microbes May Hone Predictions Of Mining Impact
...ve technology, one capable of estimating acid mine drainage
from a given site. Acid mine drainage
is the flow of sulfuric acid into ground and surface water from metallic-ore mines. In addition to c...
Virginia Tech Researchers Assess Watershed Management For EPA, NSF
.... The Upper Roanoke River Watershed has a drainage
area of 512 squaremiles and includes both rural headwater areas and concentrated urban areas alongthe river's main stem. Located near the city of Roanoke, the watershed isexperiencing significant residential and commercial development. "A wa...
UD Environmental News: Pfiesteria Detectors To Be Described March 18
...ample, an assessment of the impacts ofagricultural drainage
on water quality in Delaware. RNA-BASED PFIESTERIA PROBES : Assistant Prof. Craig Cary and colleaguesin the College of Marine Studies are gearing up to develop new molecular toolsfor monitoring specific life stages of the Pfiesteria population ...
Water Quality In Indiana's White River Basin Affected By Urban And Agricultural Activities
...r USGS monitoring sites in the United States. Soil drainage
is a major factor controlling nitrate concentrations in streams. "Concentrations tend to increase as the proportion of naturally or artificially drained soils in the basin increases," said Crawford. "Manure from farm animals also increases nitrate co...
USGS Scientists Find New Invasive Fish Species In Florida
...ily found in disturbed habitats such as canals and drainage
ditches -- Nico said the swamp eel's biology makes it well suited for all kinds of habitats. "We expect this foreign fish to rapidly occupy natural wetland habitats," said Nico. "One major concern is for the Everglades ecosystem, not only Everglade...
New Long-Term Ecological Research Site Funded For Plum Island Sound Ecosystems Study
...ring of land, for example, increases sediment in a drainage
basin, whiledamming decreases sediment discharge. Climate variability and long-termpatterns of climate change can also have immense effects on the timing,magnitude and nature of material inputs. Infrequent storms can accomplish indays what would no...
Fetal Surgery For Spina Bifida Still Under Investigation At VUMC
...percent of babies born with spina bifida require a drainage
shuntplaced in the brain to help remove excess fluid. Dr. Joseph P. Bruner, assistant professor of Obstetrics and Gynecology, isoptimistic that the operation will improve the outcomes of these children. Bruner is part of a team of VUMC researchers ?...
Reusing Ag Drainage Water An Option For West Side Farm Sustainability
...ntial water reuse is a system where farmers use ag drainage
water from onecrop, such as lettuce, to irrigate a...s can be grown in the Tulare Lake basinwith saline drainage
water. We believe the same techniques will work with thiskind of water at other sites. We know the t...
Recent USGS Work In New England And Beyond
...d at Providence Meeting: Theeffects of acid mine drainage
on surface and ground water at the abandonedElizabeth Copper Mine in Orange County, Vermont, will be presented by scientistRobert Seal at the Northeastern Section of the Geological Society of Americameeting, scheduled for March 22-24 at the Westin Ho...
New England Water Is Improving But Problems Remain, Says New USGS Report
...quality andaquatic biology in large watersheds, or drainage
areas, as part of the NationalWater-Quality Assessment Program. Copies of the report Water-Resources Investigations Report 98-4249, titled"Water-quality assessment of the New England Coastal Basins in Maine,Massachusetts, New Hampshire, and Rhode Isl...
Physicists Find Simple Solution To Great-And-Small Mystery
...f thenature of the system. "River networks in the drainage
basin sculpted by erosionand networks in plants and animals all obey this scaling law. Allometricscaling is built into efficient transportation networks and the pervasiveubiquity of such scaling shows the remarkable extent to which nature has beenab...
Salamanders may one day monitor degradation in small streams
...c. Streams suffering from acid mine drainage
(AMD) are abundant inPennsylvania and the Appalach...nd in thelesser contaminated sections of acid mine drainage
impacted streams. However, itwas rarely found in warmer streams associated with fragmented watershed...
Agronomists offer alternative approaches to gulf pollution
WEST LAFAYETTE, Ind. -- Modifying tile drainage
systems and crop rotations infarmer's fields are t...lf of Mexicostarts as tile water from agricultural drainage
systems," he says. "I'm moreconvinced of this every day." The Gulf of Mexico hypoxic zone is ...
Catastrophic draining of huge lakes tied to ancient global cooling event
...peans could suffer severely. The Laurentide lakes drainage
seems to havehalted the sinking of surface waters ... Evidence for the catastrophic Laurentide lakes drainage
comes from "redbed" sediments underlying the ancient glacial lakes that were carried some 800miles t...
Congress briefs: International congress on ecosystem health
... on the river. And there are proposals toredirect drainage
of saline waters that contain selenium into the Sacramento-SanJoaquin river delta, further impacting plants and animals in this watershed. The interaction of these stressors, combined with invading foreign species andexport of juvenile fish into the ...
LSU Ag Center researchers look for better ways to assess pollution in Tangipahoa River
...ricultural storm water" that collects in a natural drainage
channel nearthe research station to evaluate the amount of runoff and to develop methods toremediate any problems, Drapcho says. Drapcho explains that part of the challenge stems from south Louisiana'scombination of warm weather and wetlands. ...
1 2 3 4