Salinity of northeast U.S. water increases

Sep 06, 2005

Scientists say northeastern U.S. surface water might become toxic for freshwater marine life and unfit for human consumption within 100 years.

The researchers determined fresh water across the northeastern United States, from Maryland to New Hampshire, is becoming more saline due to roadway construction.

Consequently, aquatic systems receive increased salt runoff, particularly from deicers used during the winter, Sujay Kaushal and colleagues at the University of Maryland's Center for Environmental Science in Frostburg, Md., reported.

They investigated the rate of salinization in three northeastern locations -- Baltimore County, Md.; the Hudson River Valley in New York State; and the White Mountains of New Hampshire.

In all three areas, baseline chloride concentrations increased during the past 30 years.

The scientists report some rural streams exceeded 100 milligrams per liter on a seasonal basis, while urban and suburban streams already exceed the recommended chloride limit of 250 milligrams per liter.

During the winter, the spike in deicer usage appeared to push peak levels in some urban waterways to 25 percent of the chloride concentration of seawater.

The study appears in this week's issue of the journal Proceedings of the National Academy of Sciences.

Copyright 2005 by United Press International

Explore further: Planet 'reared' by four parent stars

add to favorites email to friend print save as pdf

Related Stories

NASA sees new salt in an ancient sea

Apr 09, 2012

(Phys.org) -- The expansion of massive salt evaporation projects on the Dead Sea are clearly visible in this time series of images taken by Landsat satellites operated by NASA and the U.S. Geological Survey.

Floods wash chemical barrels into China river

Jul 29, 2010

Floodwaters have washed 3,000 barrels of explosive chemicals into a major waterway in northeastern China, state media said Thursday, much more than originally reported.

ORNL inventions win three 'Research and Development 100s'

Jul 08, 2004

Highly Selective, Regenerable Perchlorate Treatment System, Advanced Heating System for High-Performance Aluminum Forgings and SniffEx are the three inventions receiving Research and Development 100 awards this year Researchers and ...

Recommended for you

'Planck' puts Einstein to the test

1 hour ago

Researchers, including physicists from Heidelberg University, have gained new insights into dark energy and the theory of gravitation by analysing data from the "Planck" satellite mission of the European ...

Distant supernova split four ways by gravitational lens

1 hour ago

Over the past several decades, astronomers have come to realize that the sky is filled with magnifying glasses that allow the study of very distant and faint objects barely visible with even the largest telescopes.

Testing to diagnose power event in Mars rover

7 hours ago

NASA's Curiosity Mars rover is expected to remain stationary for several days of engineering analysis following an onboard fault-protection action on Feb. 27 that halted a process of transferring sample material ...

ESA experts assess risk from exploded satellite

8 hours ago

After studying the recent explosive break-up of a US satellite, ESA space debris experts have concluded this event does not increase the collision risk to nearby ESA missions in any meaningful way.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.