Navigation Links
Fresh water affected by salt from deicing roads

Scientists have found that fresh water systems from across the northeastern United States including Baltimore, Maryland the Hudson River Valley, New York and the White Mountains of New Hampshire are becoming saltier due to deicer use on roads during the winter. Not only are there more roads, but the amount of deicing that occurs is increasing and gradually adding salt to fresh water systems reports Sujay Kaushal and colleagues in the September 2005 issue of the Proceedings of the National Academy of Sciences.

The scientists used historical records over the last 30 years and direct measurements to quantify changes in baseline salinity and predict what would happen if trends of urbanization and deicer use continue. By accumulating in groundwater and aquifers, some water in the northeastern U.S. already exceeds the recommended standard for the protection of aquatic life of 250 mg/l of chloride. In developed areas of Baltimore, chloride concentrations were already high enough to induce mortality in aquatic animals and alter wetland plant composition. During the winter months chloride in urbanized areas can increase in waterways to as high as 5 g/l which is equivalent to 25% of seawater concentrations.

Dr. Kaushal of the University of Maryland Center for Environmental Science Appalachian Laboratory said, "There is a direct connection between the rate of construction of new roadways and parking lots and the quality of our fresh water. In particular, we have not paid enough attention to rapid changes in human development and deicer use in watersheds that supply our drinking water and provide habitats for many species of aquatic life."

Dr. Peter Groffman, of the Institute of Ecosystem Studies, notes, "It is surprising and significant that the long-term record shows that salinity concentrations are going up, even in places where the amount of salt applied has not increased. Concentrations are high in the summer, not just in the winte
'"/>

Source:University of Maryland Center for Environmental Science


Page: 1 2

Related biology news :

1. Aging cells, aging body: Fresh evidence for a connection
2. Anti-bacterial additive widespread in U.S. waterways
3. Unprecedented water level rise in Somalia
4. Microbial fuel cell: High yield hydrogen source and wastewater cleaner
5. Survey finds silver contamination in North Pacific waters
6. Researchers discover underwater volcano
7. Too much water may be as dangerous as too little during long-distance athletic events
8. Radio-tracking associated with dramatic shift in water vole sex ratio
9. Major new UNC-based drinking water study suggests pregnancy fears may be overstated
10. Newly discovered genetic disease sheds light on bodys water balance
11. Beetle-inspired switch uses water for bonding

Post Your Comments:
(Date:11/9/2009)... Rice University evolutionary biologists David Qu...t high cooperation and low conflict between compon...thing its "organismality," whether that thing is a...me of the traits scientists use to describe an org... the same species, may not be necessary to achieve...
(Date:11/9/2009)... Delft, the Netherlands, November 09, 2009 / b3c ...ch organization, and Seventh Wave, an American org...nnounce that the companies have signed a letter of...trointestinal models TIM. The letter of intent pro...btain two TIM systems for commercialization in Nor...
(Date:11/8/2009)... , HOUSTON - (Nov. 8, 2009) The loss of a gene ... 15 is associated with significant abnormalities i...archers led by Baylor College of Medicine ( www.bc...he journal Nature Genetics . , "This research g...roblems in a specific group of individuals to this...
Breaking Biology News(10 mins):What is the meaning of 'one'? 2What is the meaning of 'one'? 3TNO and Seventh Wave sign letter of intent on joint preclinical pharmaceutical outsourcing services 2Developmental delay could stem from nicotinic receptor deletion 2Pennsylvania Department of Health Applauds New Federal Anti Tobacco Law 49680 1Pennsylvania Department of Health Applauds New Federal Anti Tobacco Law 49680 2Courage Camps Maintain Summer Camp Schedule for Children and Adults With Disabilities 49677 1Courage Camps Maintain Summer Camp Schedule for Children and Adults With Disabilities 49677 2Assurant to Announce 2009 Second Quarter Results July 29 2009 and Host Webcast Conference Call July 30 49674 1Assurant to Announce 2009 Second Quarter Results July 29 2009 and Host Webcast Conference Call July 30 49674 2
...egion of monoclonal antibodies (mAbs) increases th...g the utility of targeted cancer therapies, accord... published in the March 14 print issue of the Proc.... , Monoclonal antibodies have important advantag...ments for cancer, such as their specificity in tar...
...gists have uncovered intriguing evidence to suppor...In a study of baboons, scientists showed that as t...ir skin significantly increases. , Over time, cell...eplicative senescence. The new research, published...first to quantify the presence of replicatively se...
...iversity of Queensland report in the journal Geno...me are conspicuously devoid of ubiquitous mobile D...these regions are highly conserved among mammalian... regulation of developmental processes. , Transpos...es that have the capacity to move from one chromos...
Other Biology News:Data published in PNAS show antibodies can be made 10 times more toxic to cancer cells 2Aging cells, aging body: Fresh evidence for a connection 2Where 'jumping genes' fear to tread 2
(Date:11/9/2009)... Four of the top 10 pharmaceutical giants us...ns to Health Canada. Datafarm’s announcement...ian DIA Annual Meeting where Health Canada stated ... submit Hybrid eCTD regulatory submissions for New...permission request. , Mar...
(Date:11/8/2009)... As global temperatures and energy costs continue ...o a sustainable future. An attractive replacemen...ished online in Genome Research ( www.genome.org... of bioethanol-producing microorganisms, uncoverin...g new technologies needed to implement production ...
(Date:11/6/2009)... 6 /PRNewswire-FirstCall/ - Microbix Biosystems In...filed the Form 52-109F1 Certification of Annual Fi...er and James Long, the Chief Financial Officer (th... in connection with the annual audited financial s..., The Company initially filed the annual financ...
(Date:11/6/2009)..., Nov. 6 Myriant Technologies LLC ...nd manufacturer of renewable bio-chemicals, Uhde ...y provider Uhde GmbH, one of the world,s leading e... an alliance for the engineering, procurement &...c Acid plants based on renewable feedstocks. The ...
Breaking Biology Technology:Datafarm Responds to Health Canada's Announcement of Hybrid eCTD Submission Procedural Simplification 2Genomes of biofuel yeasts reveal clues that could boost fuel ethanol production worldwide 2Myriant Technologies LLC, Uhde Corporation of America and Uhde GmbH Announce Alliance for Engineering, Procurement & Construction of World Scale Renewable Succinic Acid Plants 2Myriant Technologies LLC, Uhde Corporation of America and Uhde GmbH Announce Alliance for Engineering, Procurement & Construction of World Scale Renewable Succinic Acid Plants 3
...o announce the,fall conference line up which cover...e pharmaceutical industry today. The events that a...rking opportunities for Clinical,Marketing, R&D, a...pharmaceutical, biotech and medical technology com...eatured events and highlights,from those conferenc...
...s Experience to the Leader in C...s., Aug. 10 Seahorse Bioscience, the,leading prov...r,bioenergetics in microplates, announced today th...n has been appointed to the company,s Board of,Dir...ccessful business,experience in the life sciences ...
...trengthens Kendle,s Global Regu... Kendle (Nasdaq: KNDL ), a,leading, global full-s...nced that Timothy Forsey, PhD, has joined the comp...cializing in providing regulatory affairs,guidance...n Kendle,s Ely,Cambridgeshire, England office, he ...
Other Biology Technology:Pfizer, Genentech, Amgen, Bayer, Wyeth, Abbott, Merck and Additional Leading Pharmaceutical Companies Participating During ExL Pharma's Fall Line Up! 2Seahorse Bioscience Appoints Former Molecular Devices Executive Dr. Joseph D. Keegan to Board of Directors 2Kendle Appoints Former MHRA Head of Biologics as Principal Regulatory Affairs Consultant 2Kendle Appoints Former MHRA Head of Biologics as Principal Regulatory Affairs Consultant 3
Peptone from Sigma-Aldrich
...2 cells were cultured in Minimum Essential Medium ... log phase of growth. In order to keep the antige...one-methanol. The cells are arrayed on a 12-well ...ace specifically treated to enhance cellular attac...
...ells were cultured in Minimum Essential Medium (Ea...g phase of growth. In order to keep the antigens ...-methanol. The cells are arrayed on a 12-well (5 ... specifically treated to enhance cellular attachme...
...Plus Microsphere/Microarray Stabilizer is an aqueo...n and other non-toxic chemicals in a PBS buffer (p...uct contains a combination of 0.02% methylisothiaz...e. StabilCoat Plus Stabilizer provides optimum pe...
Biology Products: