dissolved oxygen

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• dissolved oxygen — the amount of oxygen freely available in water and necessary for aquatic life and the oxidation of organic materials. For fish, ideal levels are about 7 9 mg/l and most fish cannot survive levels below 3 mg/l. Cold water contains more dissolved… …   Dictionary of ichthyology

• Winkler test for dissolved oxygen — The Winkler test is used to determine the level of dissolved oxygen in water samples. This metric is then used to estimate the biological activity in the water sample. An excess of Manganese(II) salt, iodide (I ) and hydroxide (OH ) ions are… …   Wikipedia

• Oxygen saturation — or dissolved oxygen (DO) is a relative measure of the amount of oxygen that is dissolved or carried in a given medium. It can be measured with a dissolved oxygen probe such as an oxygen sensor or an optode in liquid media, usually water. It has… …   Wikipedia

• Oxygen therapy — Intervention ICD 9 CM 93.96 MeSH …   Wikipedia

• Oxygen — This article is about the chemical element and its most stable form, O2 or dioxygen. For other forms of this element, see Allotropes of oxygen. For other uses, see Oxygen (disambiguation). nitrogen ← oxygen → fluorine ↑ O ↓ …   Wikipedia

• Oxygen sensor — Contents 1 Automotive applications 1.1 Function of a lambda probe 1.2 The probe …   Wikipedia

• oxygen — oxygenic /ok si jen ik/, oxygenous /ok sij euh neuhs/, adj. oxygenicity /ok si jeuh nis i tee/, n. /ok si jeuhn/, n. Chem. a colorless, odorless, gaseous element constituting about one fifth of the volume of the atmosphere and present in a… …   Universalium

• Oxygen Destroyer — The Oxygen Destroyer was a fictional weapon that appeared in the 1954 film Godzilla. It was an extremely powerful chemical compound that was able to completely dissolve Godzilla and wipe out all life in the Tokyo Bay. It was also the only weapon… …   Wikipedia

• oxygen gas analyzer — an instrument for measuring the oxygen content of a gaseous mixture, or dissolved oxygen in a liquid, or saturation of blood hemoglobin with O2 or partial pressure of O2 in blood …   Medical dictionary

• oxygen factor — the amount of dissolved oxygen necessary to sustain fish …   Dictionary of ichthyology

• oxygen depletion — noun the reduction in the concentration of dissolved oxygen in water, especially as a result of pollution …   Wiktionary