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 r when salt is applied to melt snow, suggesting that salt is accumulating in the environment."

If current trends continue over the next century, many surface waters could become unfit for human consumption and toxic to some aquatic life throughout the region. Reversing the problem involves reducing the creation of new roads and subsequent use of deicers. Despite being a major aquatic pollutant, road salt is not currently regulated as a fresh water contaminant.


'"/>

Source:University of Maryland Center for Environmental Science


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:
*Name:
*Comment:
*Email:


(Date:6/3/2016)... June 3, 2016 ... Nepal hat ein ... hochsicherer geprägter Kennzeichen, einschließlich Personalisierung, Registrierung und ... der Produktion und Implementierung von Identitätsmanagementlösungen. Zahlreiche ... im Januar teilgenommen, aber Decatur wurde als ...
(Date:6/1/2016)... 2016 Favorable Government Initiatives Coupled ... Criminal Identification to Boost Global Biometrics System Market Through ... Research report, " Global Biometrics Market By Type, ... Opportunities, 2011 - 2021", the global biometrics market is ... account of growing security concerns across various end use ...
(Date:5/12/2016)... DALLAS , May 12, 2016 ... has just published the overview results from the Q1 ... of the recent wave was consumers, receptivity to a ... wearables data with a health insurance company. ... choose to share," says Michael LaColla , CEO ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... , June 23, 2016  Blueprint Bio, a ... discoveries to the medical community, has closed its Series ... Matthew Nunez . "We have received a ... the capital we need to meet our current goals," ... provide us the runway to complete validation on the ...
(Date:6/23/2016)... Prairie, WI (PRWEB) , ... June 23, 2016 ... ... consultancy focused on quality, regulatory and technical consulting, provides a free webinar ... is presented on July 13, 2016 at 12pm CT at no charge. , ...
(Date:6/22/2016)... , June 22, 2016 Cell Applications, ... allow them to produce up to one billion ... lot within one week. These high-quality, consistent stem ... preparing cells and spend more time doing meaningful, ... a proprietary, high-volume manufacturing process that produces affordable, ...
(Date:6/22/2016)... ... June 22, 2016 , ... ... Port business incubator and current participant in the Phase 1 Ventures program, is ... patients. , Quantitative Radiology Solutions helps physicians make better treatment decisions by ...
Breaking Biology Technology: