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Use of thermodynamics in examining the effects of ocean acidification

Frank J. Millero and Benjamin R. DiTrolio
Use of thermodynamics in examining the effects of ocean acidification
Elements (October 2010) 6 (5): 299-303

Abstract

The burning of fossil fuels has increased the concentration of carbon dioxide (CO (sub 2) ) in the atmosphere from 280 ppmv (volume parts per million) to 385 ppmv over the last 200 years. This increase is larger than has occurred over the past 800,000 years. Equilibration of increasing amounts of CO (sub 2) with surface waters will decrease the pH of the oceans (called ocean acidification) from a current value of 8.1 to values as low as 7.4 over the next 200 years. Decreasing the pH affects the production of solid CaCO (sub 3) by microorganisms in surface waters and its subsequent dissolution. CO (sub 2) dissolution in the ocean can also affect acid-base equilibria, metal complex formation, solid-liquid equilibria, and the adsorption of ions to charged surfaces. Thermodynamic principles can be used to understand these processes in natural waters.


ISSN: 1811-5209
Serial Title: Elements
Serial Volume: 6
Serial Issue: 5
Title: Use of thermodynamics in examining the effects of ocean acidification
Affiliation: Rosenstiel School of Marine and Atmospheric Science, Miami, FL, United States
Pages: 299-303
Published: 201010
Text Language: English
Publisher: Mineralogical Society of America and Mineralogical Society of Great Britain and Ireland and Mineralogical Association of Canada and Geochemical Society and Clay Minerals Society, International
References: 32
Accession Number: 2011-004488
Categories: General geochemistry
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
Country of Publication: International
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201103
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