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Direct measurement of oxygen in river substrates
Author(s) -
Neill Michael,
Walsh Niamh,
Lucey John
Publication year - 2014
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/wej.12072
Subject(s) - environmental science , sediment , hydrology (agriculture) , in situ , oxygen , environmental chemistry , penetration (warfare) , mineralogy , soil science , chemistry , geology , geotechnical engineering , geomorphology , mathematics , operations research , organic chemistry
A study was conducted to establish if river substratum dissolved oxygen ( DO ) could be measured directly. Hitherto, such measurements have been carried out by proxy and indirect methods or by direct methods following installation of cores/tubes into the streambed. Redox potential ( Eh ) readings were also taken at most of the sites for comparison. The overall conclusion is that a reliable, off‐the‐shelf instrumental method of directly measuring DO in river substrates has been tested in laboratory and field conditions. The Eh meter, per contra , did give aberrant results for some measurements particularly in the field but had the advantage of a slimmer probe for easier penetration into substrata. The measurement technique, to determine river interstitial sediment O 2 , is a simple and quick direct in situ method that produces reliable results.