Chapter A7. Section 7.0. Five-Day Biochemical Oxygen Demand

Techniques of Water-Resources Investigations 09-A7.0
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Abstract

The presence of a sufficient concentration of dissolved oxygen is critical to maintaining the aquatic life and aesthetic quality of streams and lakes. Determinng how organic matter affects the concentration of dissolved oxygen (DO) in a stream or lake is integral to water-quality management. The decay of organic matter in water is measured as biochemical or chemical oxygen demand. This report describes the field protocols used by U.S. Geological Survey (USGS) personnel to determine the five-day test for biochemical oxygen demand. 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

Delzer, G.C., and McKenzie, S.W., 2003, Chapter A7. Five-Day Biochemical Oxygen Demand: U.S. Geological Survey Techniques of Water-Resources Investigations, book 9, chap A7.0, https://doi.org/10.3133/twri09A7.0.

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Chapter A7. Section 7.0. Five-Day Biochemical Oxygen Demand
Series title Techniques of Water-Resources Investigations
Series number 09-A7.0
DOI 10.3133/twri09A7.0
Edition Revised Nov 2003
Year Published 2003
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) U.S. Geological Survey
Description 19 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
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