HOME >> BIOLOGY >> NEWS
A treatment, not a cure: Calcium silicate neutralizes an acidic stream

As a result of fossil fuel emissions, many freshwater bodies in eastern North America have become acidified. When combusted, fossil fuels release sulfur dioxide and nitrogen oxide, the precursors to acid precipitation, into the atmosphere. Persistent exposure to these pollutants, which return to Earth in rain, snow, sleet, hail and fog, can compromise the health of aquatic ecosystems.

In a recent Restoration Ecology paper, Institute of Ecosystem Studies President and Director Dr. Gene E. Likens, with colleagues, explores a new approach to restoring acidified streams, the addition of calcium silicate. The paper is the first to document the neutralizing effects of Wollastonite, a calcium silicate, on an acidic stream.

The research was performed at the Hubbard Brook Experimental Forest, located in the White Mountains of New Hampshire. Likens, who discovered acid rain at Hubbard Brook in the 1960s, has been investigating human-accelerated environmental change there for over four decades. A network of researchers and agencies, including over 70 scientists, has made the 3,160-hectare forest one of the most intensively studied watersheds in the world.

"Years of monitoring have documented that Hubbard Brook receives high levels of acid precipitation from emissions largely originating at Midwestern utility plants, as a result many streams on the site are acidic." Likens comments. Adding that, "The only way to successfully combat stream acidity is through improved air quality. Until that happens, we are exploring short-term methods of restoring water quality to sensitive sites."

Symptoms of acidified streams include a drop in pH, calcium, and dissolved inorganic carbon and an increase in metals like aluminum. When pH-levels decline, a stream is said to have lost its acid neutralizing capacity (ANC). Aquatic and semi-aquatic animals, such as fish and salamanders, are more prone to stress and disease when exposed to acidity and heavy metals.
'"/>

Contact: Lori Quillen
quillenl@ecostudies.org
845-677-7600 x321
Institute of Ecosystem Studies
4-Oct-2004


Page: 1 2 3

Related biology news :

1. First genome-wide study of infectious disease opens new avenues for HIV treatment, vaccines
2. Hormones role in insects could give insight for cancer treatment, malnutrition
3. New classification of eukaryotes has implications for AIDS treatment, agriculture and beyond
4. Researchers blend folk treatment, high tech for promising anti-cancer compound
5. Calcium important for nursing mothers oral health
6. Calcium and vitamin D supplements offer modest bone improvements, no benefits for colorectal cancer
7. Calcium may protect women from cancer
8. Food preservative neutralizes anthrax spores
9. Antibody that neutralizes most HIV strains described by scientists at The Scripps Research Institute
10. Sciences Breakthrough of the Year: Salty, acidic soup could have supported life on Mars
11. Colorado River streamflow history reveals megadrought before 1490

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/11/2017)... April 11, 2017 NXT-ID, Inc. (NASDAQ: ... company, announces the appointment of independent Directors Mr. Robin ... its Board of Directors, furthering the company,s corporate governance and ... Gino Pereira ... look forward to their guidance and benefiting from their considerable ...
(Date:4/4/2017)...   EyeLock LLC , a leader of iris-based ... Patent and Trademark Office (USPTO) has issued U.S. Patent ... an iris image with a face image acquired in ... 45 th issued patent. "The ... the multi-modal biometric capabilities that have recently come to ...
(Date:3/29/2017)... CHICAGO , March 29, 2017  higi, the ... ecosystem in North America , today ... Partners and the acquisition of EveryMove. The new investment ... extensive set of tools to transform population health activities ... and lifestyle data. higi collects and secures ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... DuPont Pioneer ... that they have entered into a multiyear collaboration to identify and characterize novel ... additional tools for gene editing across all applications. , Under the terms of ...
(Date:10/12/2017)... ca (PRWEB) , ... October 12, 2017 , ... ... the Surgical Wound Market with the addition of its newest module, US Hemostats ... $1.2B market for thrombin hemostats, absorbable hemostats, fibrin sealants, synthetic sealants and biologic ...
(Date:10/12/2017)... San Diego, CA (PRWEB) , ... ... ... BioInformatics (https://www.onramp.bio/ ) has launched Rosalindâ„¢, the first-ever genomics analysis platform ... eliminating all bioinformatics complexity. Named in honor of pioneering researcher Rosalind Franklin, ...
(Date:10/11/2017)... YORBA LINDA, CA (PRWEB) , ... October 11, ... ... adapted to upregulate any gene in its endogenous context, enabling overexpression experiments and ... activation (CRISPRa) system with small RNA guides is transformative for performing systematic gain-of-function ...
Breaking Biology Technology:
Cached News: