Microbes eat their way to better concrete
...ures, bioremediation means to confine contaminated aquifers or subsurface soils through selective cementation, and possibly as a dust controller for surface soils. The project also provides excellent research experiences for undergraduate and graduate students who are actively involved conducting research ex...URI oceanographers to build laboratory to study subseafloor life
...coastal sediments, and deeply buried sediments and aquifers of the deep ocean. The facility will be made nationally accessible for research efforts of scientists and students in related fields. "The facility will also greatly aid the training of young scientists," said D'Hondt, principal investigator of the...Slow-moving ground water slows down water-quality improvements in Chesapeake Bay
... back the Bay." The age of ground water in shallow aquifers underlying most of the Chesapeake Bay watershed ranges from less than 1 year to more than 50 years. The majority of the ground water (75 percent) is less than 13 years old, which is younger than previously thought. The USGS study found that just ove......ws and the snows melt and filter downward into the aquifers (water-bearing rock formations). Want to keep an eye on what's happening with the nation's water resources on a daily basis? Go to: http://water.usgs.gov/waterwatch . For more information, call Butch Kinerney at 703-648-4732 or email at bkinern...'Homegrown' relief for victims of arsenic poisoning in South Asia
... of Bangladesh build tube wells to tap underground aquifers whose water was presumed to be safe for drinking. It was not until 1994 that toxic levels of arsenic were discovered in those wells, SenGupta says. (Arsenic is not present in the region's surface water, he adds.) The arsenic was not generated by huma...Global wetlands surveyed from space
...nd purify water for domestic use, recharge natural aquifers as they run low, retain nutrients in floodplains, help control flooding and shore erosion and regulate local climate. Most of all, wetlands support life in spectacular variety and numbers: freshwater wetlands alone are home to four in ten of all the...Computer model offers new tool to probe Woburn toxic waste site
...uate and cleanup the aquifer in Woburn and similar aquifers that are contaminated across the country, and to show public health professionals the types of chemical exposure histories that geologists can contribute to health studies," explained Bair. Although the jury found W.R. Grace and Co. liable for contam...Exploring oil rigs and an ancient shoreline in the Gulf Of Mexico for new disease cures
...most likely formed by seepage of freshwater out of aquifers beneath the seafloor. Most of such sites are situated along an ancient limestone ledge, which runs parallel to Florida's west coast and was once the shoreline 15,000 years ago before sea level rose to its current state. The team will also be the f...Dairy farmers protect groundwater, save money
...stem has helped reduce excess nutrients movinginto aquifers of the San Joaquin Valley." The manure-management system should be transferable to many ofCalifornia's Central Valley dairies, he said. The Biologically Integrated Farming Systems dairy project wasadministered by the UC Sustainable Agriculture Resear...Science picksLeads, feeds and story seeds (December 2002)
...m the epicenter while similar sloshing occurred in aquifers leading to water-level changes and muddy wells. Butch Kinerney ( bkinerney@usgs.gov ) 703-648-4460 Red is High; Blue is Low Where Do You Live?--Curious as to whether or not you live on shaky ground? There are more than 75 million Americans in 39...Arsenic in Bangladesh drinking wells may be linked to crop irrigation, MIT study finds
...w is how the arsenic is released into water in the aquifers in such great quantities. WHO's guideline for a maximum amount of arsenic in drinking water is 10 parts per billion (ppb). Many of the wells in Bangladesh measure more than 50 ppb, though arsenic levels vary from well to well. If the arsenic is in th...UMass researcher helping the EPA to determine health effects of spent rocket fuel
...ith tons of spent rocket fuel that has seeped into aquifers in parts of the American Southwest. The panel is specifically looking at a chemical known as perchlorate, a salt that has been a major component in rocket fuel for roughly 50 years, said Thomas Zoeller, an endocrinologist at UMass. "We know it can ...'Buried dams' help clean recycled water
... or inactivate them. In experiments undertaken in aquifers and under controlled conditions in the laboratory simulating conditions of an underground aquifer, results have shown that the disease-causing microbes can last less than one month, he has found. This makes underground storage one of the most promisi...Paradox of groundwater age has implications for hydrology
... and Thomas Johnson, has shown that groundwater in aquifers is generally older than expected on the basis of f...ough the ground. Groundwater tends to flow through aquifers that are constrained by layers of less permeable rock called aquitards. Hydrologists commonly figur...Stanford scientists to probe inner workings of remarkable microbe
...entus often are found growing in noxious blooms in aquifers deep underground. Conventional laboratories allow microbes to grow in non-stressful conditions, providing them with an abundance of food and an ideal living environment, he says. ``But in the wild, bacteria spend most of the time starving, because it...Northern Vietnam drinking water contains dangerous arsenic levels
...emphasize that the arsenic contamination levels in aquifers of Vietnam are of the same order of magnitude as in Bangladesh," he said. "In rural areas, the untreated groundwater is consumed directly as drinking water, hence several million totally unaware people are at immediate risk." The researchers have sug......ter. Restrictions on withdrawal of water from deep aquifers have also forced development of aquifers nearer to the surface. This study illustrates the potential impacts of near-surface aquifer developm......le whose drinking water comes from streams or from aquifers (water-bearing rock formations) buried relatively deep beneath the land. Protection of human health is more difficult in rural agricultural areas where shallow ground water is used for domestic water supply. High levels of nitrate in shallow...Subterranean Mapping Method Will Find Homes For Pollution-Eating Bacteria
...s, and radioactivecontaminants polluting soils and aquifers and threatening water supplies. Biogeochemist Robert W. Smith has been awarded a three-year $600,000 grant bythe Department of Energy's Natural and Accelerated Bioremediation Research(NABIR) Program to develop a method to determine subterranean surfa......n with engineered systems, to restore contaminated aquifers forfuture use. Several presentations by USGS scientists will focus on natural restorationof a Cape Cod aquifer. Treated sewage was discharged into the aquifer for60 years at the Massachusetts Military Reservation. The USGS has beenmonitoring the na...