Chapter A6. Section 6.7. Turbidity

Techniques of Water-Resources Investigations 09-A6.7
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Abstract

Turbidity is one of the indicators used to assess the environmental health of water bodies. Turbidity is caused by the presence of suspended and dissolved matter, such as clay, silt, finely divided organic matter, plankton and other microscopic organisms, organic acids, and dyes. This section of the National Field Manual (NFM) describes the USGS protocols for determining turbidity in surface and ground waters, including extensive guidance for equipment selection and data reporting. It includes the revised approach to turbidity measurement and reporting that was implemented by the U.S. Geological Survey (USGS) in October 2004 to account for technological advances and consequent measurement complexities. 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

Anderson, C.W., 2005, Turbidity: U.S. Geological Survey Techniques of Water-Resources Investigations, book 9, chap. A6.7, https://doi.org/10.3133/twri09A6.7.

Table of Contents

  • Turbidity
  • Selected References

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Chapter A6. Section 6.7. Turbidity
Series title Techniques of Water-Resources Investigations
Series number 09-A6.7
DOI 10.3133/twri09A6.7
Edition Version 2.1
Year Published 2005
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) U.S. Geological Survey
Description 55 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
Additional Online Files (Y/N) Y
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