Chapter A6. Section 6.4. pH

Techniques of Water-Resources Investigations 09-A6.4
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Abstract

Measurement of pH is critical to the understanding of the viability and vulnerability of environmental waters and is considered a master variable in determining the aqueous geochemistry of an aqueous system. pH is a measure that represents the hydrogen-ion concentration (activity) of a solution. This section of the National Field Manual (NFM) describes U.S. Geological Survey (USGS) guidance and protocols for measurement of pH in ground and surface waters. Each chapter of the National Field Manual is published separately and revised periodically. Newly published and revised chapters will be announced on the USGS Home Page on the World Wide Web under 'New Publications of the U.S. Geological Survey.'

Suggested Citation

Ritz, G.F., and Collins, J.A., 2008, pH 6.4 (ver. 2.0, October 2008): U.S. Geological Survey Techniques of Water-Resources Investigations, book 9, chap. A6.4, https://doi.org/10.3133/twri09A6.4.

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Chapter A6. Section 6.4. pH
Series title Techniques of Water-Resources Investigations
Series number 09-A6.4
DOI 10.3133/twri09A6.4
Edition Version 1.3
Year Published 2006
Language English
Publisher U.S. Geological Survey
Contributing office(s) U.S. Geological Survey
Description 29 p.
Larger Work Type Report
Larger Work Subtype USGS Numbered Series
Larger Work Title National Field Manual for the Collection of Water-Quality Data. U.S. Geological Survey Techniques of Water-Resources Investigations, Book 9, chap.
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