TERMIUM Plus®
From: Translation Bureau
On social media
Consult the Government of Canada’s terminology data bank.
DISSOLVED OXYGEN CONCENTRATION [18 records]
Record 1 - internal organization data 2023-05-16
Record 1, English
Record 1, Subject field(s)
- Biochemistry
- Environmental Studies and Analyses
- Water Pollution
- Water Treatment (Water Supply)
Record 1, Main entry term, English
- biochemical oxygen demand
1, record 1, English, biochemical%20oxygen%20demand
correct, see observation, standardized
Record 1, Abbreviations, English
- BOD 1, record 1, English, BOD
correct, see observation, standardized
- B.O.D. 2, record 1, English, B%2EO%2ED%2E
correct, see observation
Record 1, Synonyms, English
- biological oxygen demand 3, record 1, English, biological%20oxygen%20demand
correct, see observation
- BOD 3, record 1, English, BOD
correct, see observation
- BOD 3, record 1, English, BOD
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The mass concentration of dissolved oxygen consumed under specified conditions by the biological oxidation of organic and/or inorganic matter in water. 4, record 1, English, - biochemical%20oxygen%20demand
Record number: 1, Textual support number: 1 OBS
biochemical oxygen demand; biological oxygen demand; BOD; B.O.D.: [These terms and abbreviations can also refer] to a chemical procedure for determining this amount. This is not a precise quantitative test, although it is widely used as an indication of the organic quality of water. The BOD value is most commonly expressed in milligrams of oxygen consumed per litre of sample during 5 days of incubation at 20 °C and is often used as a robust surrogate of the degree of organic pollution of water. ... BOD can be used as a gauge of the effectiveness of wastewater treatment plants. ... BOD is similar in function to chemical oxygen demand (COD), in that both measure the amount of organic compounds in water. However, COD is less specific, since it measures everything that can be chemically oxidized, rather than just levels of biologically active organic matter. 2, record 1, English, - biochemical%20oxygen%20demand
Record number: 1, Textual support number: 2 OBS
A 5-day BOD is written BOD5. (The subscripted number represents the number of days over which measurements are taken.) 5, record 1, English, - biochemical%20oxygen%20demand
Record number: 1, Textual support number: 3 OBS
biochemical oxygen demand; BOD: term, abbreviation and definition standardized by the International Organization for Standardization (ISO). 6, record 1, English, - biochemical%20oxygen%20demand
Record 1, French
Record 1, Domaine(s)
- Biochimie
- Études et analyses environnementales
- Pollution de l'eau
- Traitement des eaux
Record 1, Main entry term, French
- demande biochimique en oxygène
1, record 1, French, demande%20biochimique%20en%20oxyg%C3%A8ne
correct, see observation, feminine noun, standardized
Record 1, Abbreviations, French
- DBO 2, record 1, French, DBO
correct, see observation, feminine noun, standardized
Record 1, Synonyms, French
- demande biologique en oxygène 3, record 1, French, demande%20biologique%20en%20oxyg%C3%A8ne
correct, see observation, feminine noun
- DBO 3, record 1, French, DBO
correct, see observation, feminine noun
- DBO 3, record 1, French, DBO
- demande biochimique d'oxygène 4, record 1, French, demande%20biochimique%20d%27oxyg%C3%A8ne
see observation, feminine noun
- D.B.O. 5, record 1, French, D%2EB%2EO%2E
see observation, feminine noun
- DBO 6, record 1, French, DBO
see observation, feminine noun
- D.B.O. 5, record 1, French, D%2EB%2EO%2E
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Concentration en masse de l'oxygène dissous consommé dans des conditions définies par l'oxydation biologique des matières organiques et/ou inorganiques contenues dans l'eau. 7, record 1, French, - demande%20biochimique%20en%20oxyg%C3%A8ne
Record number: 1, Textual support number: 1 OBS
La quantité d'oxygène nécessaire pour oxyder les matières organiques (biodégradables) par voie biologique (oxydation des matières organiques biodégradables par des bactéries) [...] permet d'évaluer la fraction biodégradable de la charge polluante carbonée des eaux usées. Elle est en général calculée au bout de 5 jours à 20 °C et dans le noir. On parle alors de "DBO5". 3, record 1, French, - demande%20biochimique%20en%20oxyg%C3%A8ne
Record number: 1, Textual support number: 2 OBS
DBO5 : La demande biochimique en oxygène après (ou à) 5 jours. Le chiffre s'écrit habituellement en indice (DBO5). 8, record 1, French, - demande%20biochimique%20en%20oxyg%C3%A8ne
Record number: 1, Textual support number: 3 OBS
demande biochimique en oxygène; demande biologique en oxygène; demande biochimique d'oxygène; DBO; D.B.O. : Ces termes et abréviations peuvent également désigner la procédure servant à calculer la quantité d'oxygène en question. 8, record 1, French, - demande%20biochimique%20en%20oxyg%C3%A8ne
Record number: 1, Textual support number: 4 OBS
La DBO sert d'indice de pollution de l'eau. 8, record 1, French, - demande%20biochimique%20en%20oxyg%C3%A8ne
Record number: 1, Textual support number: 5 OBS
demande biochimique en oxygène; DBO : terme, abréviation et définition normalisés par l'Organisation internationale de normalisation (ISO). 9, record 1, French, - demande%20biochimique%20en%20oxyg%C3%A8ne
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Bioquímica
- Estudios y análisis del medio ambiente
- Contaminación del agua
- Tratamiento del agua
Record 1, Main entry term, Spanish
- demanda bioquímica de oxígeno
1, record 1, Spanish, demanda%20bioqu%C3%ADmica%20de%20ox%C3%ADgeno
correct, feminine noun
Record 1, Abbreviations, Spanish
- DBO 1, record 1, Spanish, DBO
correct, feminine noun
Record 1, Synonyms, Spanish
- demanda biológica de oxígeno 2, record 1, Spanish, demanda%20biol%C3%B3gica%20de%20ox%C3%ADgeno
correct, feminine noun
- DBO 3, record 1, Spanish, DBO
correct, feminine noun
- DBO 3, record 1, Spanish, DBO
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Concentración en masa del oxígeno disuelto, consumido bajo condiciones específicas, por la oxidación biológica de la materia orgánica e/o inorgánica contenida en el agua. 4, record 1, Spanish, - demanda%20bioqu%C3%ADmica%20de%20ox%C3%ADgeno
Record 2 - internal organization data 2016-04-05
Record 2, English
Record 2, Subject field(s)
- Biochemistry
- Ecology (General)
Record 2, Main entry term, English
- anoxic
1, record 2, English, anoxic
correct, standardized
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
[Said of a] condition in which the concentration of dissolved oxygen is so low that certain groups of micro-organisms prefer oxidized forms of nitrogen, sulfur, or carbon as an electron acceptor. 2, record 2, English, - anoxic
Record number: 2, Textual support number: 1 CONT
... phosphatic sediments are thought to have formed under anoxic bottom conditions that resulted from heavy outfall of decaying organic matter ... 3, record 2, English, - anoxic
Record number: 2, Textual support number: 1 OBS
anoxic: term and definition standardized by ISO. 4, record 2, English, - anoxic
Record number: 2, Textual support number: 1 PHR
Anoxic environment, anoxic water column. 5, record 2, English, - anoxic
Record 2, French
Record 2, Domaine(s)
- Biochimie
- Écologie (Généralités)
Record 2, Main entry term, French
- anoxique
1, record 2, French, anoxique
correct, standardized
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
[Se dit d'un] état dans lequel la concentration en oxygène dissous est si faible que certains groupes de micro-organismes préfèrent les formes oxydées de l'azote, du soufre ou du carbone comme accepteur d'électron. 2, record 2, French, - anoxique
Record number: 2, Textual support number: 1 CONT
Les cellules utilisèrent désormais l'oxygène pour leur respiration. [...] De nombreux Procaryotes intolérants s'éteignirent; d'autres se réfugièrent dans des habitats anoxiques (tels les milieux plus profonds). 3, record 2, French, - anoxique
Record number: 2, Textual support number: 1 OBS
anoxique : terme et définition normalisés par ISO. 4, record 2, French, - anoxique
Record number: 2, Textual support number: 1 PHR
Colonne d'eau anoxique, milieu anoxique. 5, record 2, French, - anoxique
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Bioquímica
- Ecología (Generalidades)
Record 2, Main entry term, Spanish
- anóxica
1, record 2, Spanish, an%C3%B3xica
correct
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
[Dícese de la] condición en la cual la concentración de oxígeno disuelto es tan baja que algunos grupos de microorganismos prefieren usar formas oxidadas de nitrógeno, azufre o carbono como aceptadores de un electrón. 1, record 2, Spanish, - an%C3%B3xica
Record 3 - internal organization data 2016-02-29
Record 3, English
Record 3, Subject field(s)
- Ecology (General)
- Water Pollution
Record 3, Main entry term, English
- reaeration
1, record 3, English, reaeration
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- re-aeration 2, record 3, English, re%2Daeration
correct, standardized
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
A process whereby air is re-introduced to increase the concentration of dissolved oxygen after the oxygen has been depleted by some chemical or biological process. 3, record 3, English, - reaeration
Record number: 3, Textual support number: 1 OBS
According to our English sources, "reaeration" differs from "reoxygenation" whereby a body of water receives replacement oxygen not only from the atmosphere, but from plants and dilution waters as well. 4, record 3, English, - reaeration
Record number: 3, Textual support number: 2 OBS
re-aeration: term and definition standardized by ISO. 5, record 3, English, - reaeration
Record 3, French
Record 3, Domaine(s)
- Écologie (Généralités)
- Pollution de l'eau
Record 3, Main entry term, French
- réaération
1, record 3, French, r%C3%A9a%C3%A9ration
correct, feminine noun, standardized
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Procédé selon lequel de l'air est réintroduit, afin d'accroître la concentration en oxygène dissous après consommation de l'oxygène par les traitements chimiques ou biologiques. 2, record 3, French, - r%C3%A9a%C3%A9ration
Record number: 3, Textual support number: 1 CONT
Ce procédé [aération étagée] [...] permet sur les eaux usées urbaines de ramener à 3 heures la durée d'aération, [et] présente d'autre part le grand avantage d'assurer une réaération des boues recirculées avant leur mise en contact avec l'effluent à traiter. 3, record 3, French, - r%C3%A9a%C3%A9ration
Record number: 3, Textual support number: 1 OBS
Les sources françaises que nous avons consultées ne nous permettent pas d'établir une distinction nette entre les termes «réaération» et «réoxygénation» (voir ce terme). De plus, les sources anglaises ne mentionnent pas que ces phénomènes peuvent être provoqués artificiellement. 4, record 3, French, - r%C3%A9a%C3%A9ration
Record number: 3, Textual support number: 2 OBS
réaération : terme et définition normalisés par l'ISO. 5, record 3, French, - r%C3%A9a%C3%A9ration
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Ecología (Generalidades)
- Contaminación del agua
Record 3, Main entry term, Spanish
- reaereación
1, record 3, Spanish, reaereaci%C3%B3n
correct, feminine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
- re-aeración 1, record 3, Spanish, re%2Daeraci%C3%B3n
correct, feminine noun
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 DEF
Proceso en el que se introduce nuevamente aire con el fin de incrementar la concentración de oxígeno disuelto después de que éste se ha agotado por algún proceso químico o biológico. 1, record 3, Spanish, - reaereaci%C3%B3n
Record 4 - internal organization data 2016-02-25
Record 4, English
Record 4, Subject field(s)
- Pollutants
- Water Pollution
Record 4, Main entry term, English
- oxygen-sag curve
1, record 4, English, oxygen%2Dsag%20curve
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- oxygen sag curve 2, record 4, English, oxygen%20sag%20curve
correct, standardized
- dissolved oxygen-sag curve 1, record 4, English, dissolved%20oxygen%2Dsag%20curve
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
The curve resulting from plotting the concentration of dissolved oxygen against distance or time of flow in a river downstream from a source of pollution that has an oxygen demand. 2, record 4, English, - oxygen%2Dsag%20curve
Record number: 4, Textual support number: 1 OBS
oxygen sag curve: term and definition standardized by ISO. 1, record 4, English, - oxygen%2Dsag%20curve
Record 4, French
Record 4, Domaine(s)
- Agents de pollution
- Pollution de l'eau
Record 4, Main entry term, French
- courbe en sac d'oxygène dissous
1, record 4, French, courbe%20en%20sac%20d%27oxyg%C3%A8ne%20dissous
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- courbe dite «en sac» 2, record 4, French, courbe%20dite%20%C2%ABen%20sac%C2%BB
correct, feminine noun, standardized
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Courbe résultant du tracé de la chute de la concentration en oxygène dissous en fonction de la distance ou du temps d'écoulement du flux d'une rivière en aval d'une source de pollution ayant une demande chimique en oxygène. 2, record 4, French, - courbe%20en%20sac%20d%27oxyg%C3%A8ne%20dissous
Record number: 4, Textual support number: 1 OBS
courbe dite «en sac» : terme et définition normalisés par l'ISO. 1, record 4, French, - courbe%20en%20sac%20d%27oxyg%C3%A8ne%20dissous
Record 4, Key term(s)
- courbe en sac d'oxygène
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Agentes contaminantes
- Contaminación del agua
Record 4, Main entry term, Spanish
- curva SAG de oxígeno
1, record 4, Spanish, curva%20SAG%20de%20ox%C3%ADgeno
correct, feminine noun
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record number: 4, Textual support number: 1 DEF
Curva resultante al representar la concentración de oxígeno disuelto, en función de la distancia o el tiempo de flujo en un río que baja desde una fuente de contaminación que tiene una demanda de oxígeno. 1, record 4, Spanish, - curva%20SAG%20de%20ox%C3%ADgeno
Record 5 - internal organization data 2015-12-01
Record 5, English
Record 5, Subject field(s)
- Biochemistry
- Environmental Studies and Analyses
- Water Pollution
Record 5, Main entry term, English
- oxygen saturation value
1, record 5, English, oxygen%20saturation%20value
correct, standardized
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
The concentration of dissolved oxygen in equilibrium, either with air(natural systems) or with pure oxygen(oxygen waste-water treatment systems). 1, record 5, English, - oxygen%20saturation%20value
Record number: 5, Textual support number: 1 OBS
It varies with temperature, partial pressure of oxygen and salinity. 1, record 5, English, - oxygen%20saturation%20value
Record number: 5, Textual support number: 2 OBS
oxygen saturation value: term and definition standardized by ISO. 2, record 5, English, - oxygen%20saturation%20value
Record 5, French
Record 5, Domaine(s)
- Biochimie
- Études et analyses environnementales
- Pollution de l'eau
Record 5, Main entry term, French
- valeur de saturation en oxygène
1, record 5, French, valeur%20de%20saturation%20en%20oxyg%C3%A8ne
correct, feminine noun, standardized
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Concentration en oxygène dissous en équilibre soit avec l'air (dans des systèmes naturels), soit avec l'oxygène pur (dans des systèmes de traitements par oxygène des eaux usées). 1, record 5, French, - valeur%20de%20saturation%20en%20oxyg%C3%A8ne
Record number: 5, Textual support number: 1 OBS
Elle varie avec la température, la pression partielle en oxygène et la salinité. 1, record 5, French, - valeur%20de%20saturation%20en%20oxyg%C3%A8ne
Record number: 5, Textual support number: 2 OBS
valeur de saturation en oxygène : terme et définition normalisés par l'ISO. 2, record 5, French, - valeur%20de%20saturation%20en%20oxyg%C3%A8ne
Record 5, Spanish
Record 5, Campo(s) temático(s)
- Bioquímica
- Estudios y análisis del medio ambiente
- Contaminación del agua
Record 5, Main entry term, Spanish
- valor de saturación en oxígeno
1, record 5, Spanish, valor%20de%20saturaci%C3%B3n%20en%20ox%C3%ADgeno
correct, masculine noun
Record 5, Abbreviations, Spanish
Record 5, Synonyms, Spanish
Record 5, Textual support, Spanish
Record number: 5, Textual support number: 1 DEF
Concentración de oxígeno disuelto en equilibrio, o con aire (sistemas naturales) o con oxígeno puro (sistemas de tratamiento de aguas residuales con oxígeno). 1, record 5, Spanish, - valor%20de%20saturaci%C3%B3n%20en%20ox%C3%ADgeno
Record number: 5, Textual support number: 1 OBS
Varía con la temperatura la presión parcial del oxígeno y la salinidad. 1, record 5, Spanish, - valor%20de%20saturaci%C3%B3n%20en%20ox%C3%ADgeno
Record 6 - internal organization data 2015-11-16
Record 6, English
Record 6, Subject field(s)
- Water Treatment (Water Supply)
Record 6, Main entry term, English
- spray aeration
1, record 6, English, spray%20aeration
correct, standardized
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
A process by which the dissolved oxygen concentration in a water is increased by spraying the water in the air. 1, record 6, English, - spray%20aeration
Record number: 6, Textual support number: 1 OBS
The process is also used for purging water of undesirable gases. 1, record 6, English, - spray%20aeration
Record number: 6, Textual support number: 2 OBS
spray aeration: term and definition standardized by ISO. 2, record 6, English, - spray%20aeration
Record 6, French
Record 6, Domaine(s)
- Traitement des eaux
Record 6, Main entry term, French
- aération par pulvérisation
1, record 6, French, a%C3%A9ration%20par%20pulv%C3%A9risation
correct, feminine noun, standardized
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 DEF
Procédé par lequel la concentration d'oxygène dissous dans l'eau est accrue par pulvérisation de l'eau dans l'air. 1, record 6, French, - a%C3%A9ration%20par%20pulv%C3%A9risation
Record number: 6, Textual support number: 1 OBS
Le procédé est aussi utilisé pour purger l'eau de gaz indésirables. 1, record 6, French, - a%C3%A9ration%20par%20pulv%C3%A9risation
Record number: 6, Textual support number: 2 OBS
aération par pulverisation : terme et définition normalisés par l'ISO. 2, record 6, French, - a%C3%A9ration%20par%20pulv%C3%A9risation
Record 6, Spanish
Record 6, Campo(s) temático(s)
- Tratamiento del agua
Record 6, Main entry term, Spanish
- aeración por aspersión
1, record 6, Spanish, aeraci%C3%B3n%20por%20aspersi%C3%B3n
correct, feminine noun
Record 6, Abbreviations, Spanish
Record 6, Synonyms, Spanish
- aeración por pulverización 1, record 6, Spanish, aeraci%C3%B3n%20por%20pulverizaci%C3%B3n
correct, feminine noun
Record 6, Textual support, Spanish
Record number: 6, Textual support number: 1 DEF
Proceso por el cual la concentración de oxígeno disuelto en agua se incrementa mediante atomizado del agua en el aire. 1, record 6, Spanish, - aeraci%C3%B3n%20por%20aspersi%C3%B3n
Record number: 6, Textual support number: 1 OBS
El proceso también se usa para purgar el agua de gases indeseables. 1, record 6, Spanish, - aeraci%C3%B3n%20por%20aspersi%C3%B3n
Record 7 - internal organization data 2015-10-29
Record 7, English
Record 7, Subject field(s)
- Environmental Studies and Analyses
- Water Pollution
Record 7, Main entry term, English
- oxygen deficit
1, record 7, English, oxygen%20deficit
correct, standardized
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 DEF
The difference between the actual dissolved oxygen concentration of an aqueous system and its oxygen saturation value. 1, record 7, English, - oxygen%20deficit
Record number: 7, Textual support number: 1 OBS
oxygen deficit: term and definition standardized by ISO. 2, record 7, English, - oxygen%20deficit
Record 7, French
Record 7, Domaine(s)
- Études et analyses environnementales
- Pollution de l'eau
Record 7, Main entry term, French
- déficit en oxygène
1, record 7, French, d%C3%A9ficit%20en%20oxyg%C3%A8ne
correct, masculine noun, standardized
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 DEF
Différence entre la concentration en oxygène dissous réelle et la valeur de saturation en oxygène dans un milieu aqueux. 1, record 7, French, - d%C3%A9ficit%20en%20oxyg%C3%A8ne
Record number: 7, Textual support number: 1 OBS
déficit en oxygène : terme et définition normalisés par ISO. 2, record 7, French, - d%C3%A9ficit%20en%20oxyg%C3%A8ne
Record 7, Spanish
Record 7, Campo(s) temático(s)
- Estudios y análisis del medio ambiente
- Contaminación del agua
Record 7, Main entry term, Spanish
- déficit en oxígeno
1, record 7, Spanish, d%C3%A9ficit%20en%20ox%C3%ADgeno
correct, masculine noun
Record 7, Abbreviations, Spanish
Record 7, Synonyms, Spanish
Record 7, Textual support, Spanish
Record number: 7, Textual support number: 1 DEF
Diferencia entre la concentración real en oxígeno disuelto y el valor de saturación en oxígeno en un medio acuoso. 1, record 7, Spanish, - d%C3%A9ficit%20en%20ox%C3%ADgeno
Record 8 - internal organization data 2015-09-16
Record 8, English
Record 8, Subject field(s)
- Environmental Studies and Analyses
- Water Pollution
- Analytical Chemistry
Record 8, Main entry term, English
- chemical oxygen demand
1, record 8, English, chemical%20oxygen%20demand
correct, standardized
Record 8, Abbreviations, English
- COD 1, record 8, English, COD
correct, standardized
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 DEF
The mass concentration of oxygen equivalent to the amount of dichromate consumed by dissolved and suspended matter when a water sample is treated with that oxidant under defined conditions. 2, record 8, English, - chemical%20oxygen%20demand
Record number: 8, Textual support number: 1 OBS
The weight of oxygen taken up by the total amount of organic matter in a sample of water without distinguishing between biodegradable and non-biodegradable organic matter. The result is expressed as the number of parts per million (or milligrams per litre, or grams per cubic metre) of oxygen taken up from a solution of boiling potassium dichromate in two hours. The test has been used for assessing the strength of sewage and trade wastes. 3, record 8, English, - chemical%20oxygen%20demand
Record number: 8, Textual support number: 2 OBS
chemical oxygen demand; COD: term, abbreviation and definition standardized by ISO. 4, record 8, English, - chemical%20oxygen%20demand
Record 8, French
Record 8, Domaine(s)
- Études et analyses environnementales
- Pollution de l'eau
- Chimie analytique
Record 8, Main entry term, French
- demande chimique en oxygène
1, record 8, French, demande%20chimique%20en%20oxyg%C3%A8ne
correct, feminine noun, standardized
Record 8, Abbreviations, French
- DCO 2, record 8, French, DCO
correct, feminine noun, standardized
- D.C.O. 3, record 8, French, D%2EC%2EO%2E
correct, feminine noun
Record 8, Synonyms, French
- demande chimique d'oxygène 4, record 8, French, demande%20chimique%20d%27oxyg%C3%A8ne
correct, feminine noun
Record 8, Textual support, French
Record number: 8, Textual support number: 1 DEF
Concentration en masse d'oxygène équivalente à la quantité de dichromate consommée par les matières dissoutes et en suspension lorsqu'on traite un échantillon d'eau avec cet oxydant dans des conditions définies. 5, record 8, French, - demande%20chimique%20en%20oxyg%C3%A8ne
Record number: 8, Textual support number: 1 OBS
Paramètre utilisé pour caractériser la pollution organique de l'eau, qui se mesure à partir de la quantité d'oxygène dissous nécessaire à la dégradation chimique des polluants organiques qu'elle contient. 6, record 8, French, - demande%20chimique%20en%20oxyg%C3%A8ne
Record number: 8, Textual support number: 2 OBS
demande chimique en oxygène; DCO : terme, abréviation et définition normalisés par l'ISO. 7, record 8, French, - demande%20chimique%20en%20oxyg%C3%A8ne
Record 8, Spanish
Record 8, Campo(s) temático(s)
- Estudios y análisis del medio ambiente
- Contaminación del agua
- Química analítica
Record 8, Main entry term, Spanish
- demanda química de oxígeno
1, record 8, Spanish, demanda%20qu%C3%ADmica%20de%20ox%C3%ADgeno
correct, feminine noun
Record 8, Abbreviations, Spanish
- DQO 2, record 8, Spanish, DQO
correct, feminine noun
Record 8, Synonyms, Spanish
Record 8, Textual support, Spanish
Record number: 8, Textual support number: 1 DEF
Concentración en masa del oxígeno equivalente a la cantidad de dicromato consumido por las materias disueltas y en suspensión, cuando una muestra de agua se trata por dicho oxidante en condiciones definidas. 3, record 8, Spanish, - demanda%20qu%C3%ADmica%20de%20ox%C3%ADgeno
Record 9 - internal organization data 2012-06-11
Record 9, English
Record 9, Subject field(s)
- Biological Sciences
- Water Treatment (Water Supply)
Record 9, Main entry term, English
- nitrification kinetics
1, record 9, English, nitrification%20kinetics
correct
Record 9, Abbreviations, English
Record 9, Synonyms, English
- kinetics of nitrification 2, record 9, English, kinetics%20of%20nitrification
correct
Record 9, Textual support, English
Record number: 9, Textual support number: 1 CONT
The influence of dissolved oxygen concentration in nitrification kinetics was studied in a new biofilm reactor, the circulating bed reactor. 1, record 9, English, - nitrification%20kinetics
Record 9, French
Record 9, Domaine(s)
- Sciences biologiques
- Traitement des eaux
Record 9, Main entry term, French
- cinétique de nitrification
1, record 9, French, cin%C3%A9tique%20de%20nitrification
correct, feminine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
Record 9, Textual support, French
Record number: 9, Textual support number: 1 CONT
Contrairement aux boues activées, le paramètre limitant n'est plus l'âge de la boue, mais la cinétique de nitrification. 1, record 9, French, - cin%C3%A9tique%20de%20nitrification
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 2011-08-18
Record 10, English
Record 10, Subject field(s)
- Environmental Studies and Analyses
Record 10, Main entry term, English
- dissolved oxygen concentration
1, record 10, English, dissolved%20oxygen%20concentration
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 CONT
... a small downward shift in dissolved oxygen concentration in a lake may be the driving force that causes the demise of the resident trout population. 1, record 10, English, - dissolved%20oxygen%20concentration
Record 10, French
Record 10, Domaine(s)
- Études et analyses environnementales
Record 10, Main entry term, French
- concentration d'oxygène dissous
1, record 10, French, concentration%20d%27oxyg%C3%A8ne%20dissous
feminine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
Record 10, Textual support, French
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 2010-09-22
Record 11, English
Record 11, Subject field(s)
- Chemical Elements and Compounds
Universal entry(ies) Record 11
Record 11, Main entry term, English
- manganese(III) hydroxide
1, record 11, English, manganese%28III%29%20hydroxide
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
- manganese trihydroxide 2, record 11, English, manganese%20trihydroxide
correct
- manganese(3+) hydroxide 2, record 11, English, manganese%283%2B%29%20hydroxide
correct
- manganic hydroxide 3, record 11, English, manganic%20hydroxide
former designation, avoid
Record 11, Textual support, English
Record number: 11, Textual support number: 1 CONT
Oxygen concentration in water can be measured by means of an oxygen-sensing electrode, spectrophotometrically, and titrimetrically. This experiment uses a titration technique which... involves several oxidation-reduction reactions, the first of which involves the oxidation of manganese(II) ion by dissolved oxygen to form manganese(III) hydroxide. 4, record 11, English, - manganese%28III%29%20hydroxide
Record number: 11, Textual support number: 1 OBS
manganic [obsolete formulation]: Of, pertaining to, or containing manganese in the trivalent state ... 5, record 11, English, - manganese%28III%29%20hydroxide
Record number: 11, Textual support number: 2 OBS
Chemical formula: MnO(OH)2 6, record 11, English, - manganese%28III%29%20hydroxide
Record 11, French
Record 11, Domaine(s)
- Éléments et composés chimiques
Entrée(s) universelle(s) Record 11
Record 11, Main entry term, French
- hydroxyde de manganèse(III)
1, record 11, French, hydroxyde%20de%20mangan%C3%A8se%28III%29
correct, masculine noun
Record 11, Abbreviations, French
Record 11, Synonyms, French
- trihydroxyde de manganèse 2, record 11, French, trihydroxyde%20de%20mangan%C3%A8se
correct, masculine noun
- hydroxyde de manganèse(3+) 2, record 11, French, hydroxyde%20de%20mangan%C3%A8se%283%2B%29
correct, masculine noun
- hydroxyde manganique 3, record 11, French, hydroxyde%20manganique
former designation, avoid, masculine noun
Record 11, Textual support, French
Record number: 11, Textual support number: 1 CONT
Démanganisation. La précipitation du manganèse sous forme d'hydroxyde manganique qui nécessite un pH supérieur à 9,0 n'est pas de pratique courante; on doit avoir recours à des techniques spéciales. 4, record 11, French, - hydroxyde%20de%20mangan%C3%A8se%28III%29
Record number: 11, Textual support number: 2 CONT
Écrire la demi-réaction redox entre l'ion manganèse(II) et l'hydroxyde de manganèse(III). 5, record 11, French, - hydroxyde%20de%20mangan%C3%A8se%28III%29
Record number: 11, Textual support number: 1 OBS
Formule chimique : MnO(OH)2 6, record 11, French, - hydroxyde%20de%20mangan%C3%A8se%28III%29
Record 11, Spanish
Record 11, Textual support, Spanish
Record 12 - internal organization data 2010-06-14
Record 12, English
Record 12, Subject field(s)
- Biological Sciences
Record 12, Main entry term, English
- aerotaxys
1, record 12, English, aerotaxys
correct
Record 12, Abbreviations, English
Record 12, Synonyms, English
Record 12, Textual support, English
Record number: 12, Textual support number: 1 DEF
The directed movement of motile organism towards(positive) or away from(negative) on air-liquid interface, or a concentration gradient of dissolved oxygen. 2, record 12, English, - aerotaxys
Record 12, French
Record 12, Domaine(s)
- Sciences biologiques
Record 12, Main entry term, French
- aérotaxie
1, record 12, French, a%C3%A9rotaxie
correct, feminine noun
Record 12, Abbreviations, French
Record 12, Synonyms, French
Record 12, Textual support, French
Record number: 12, Textual support number: 1 CONT
Taxie. Mouvement d'orientation des organismes libres, déclenché par un stimulus externe. Selon la direction de ce mouvement par rapport à celle du stimulus, on distingue les taxies positives et les taxies négatives. Selon la nature du stimulus, on distingue : [...] l'aérotaxie (interface eau/atmosphère) [...] 2, record 12, French, - a%C3%A9rotaxie
Record number: 12, Textual support number: 1 OBS
À tort, certains [...] confondent «taxies» et «tropismes» alors que ces derniers sont, par définition, des réactions d'orientation de végétaux et d'animaux fixés. 3, record 12, French, - a%C3%A9rotaxie
Record 12, Spanish
Record 12, Textual support, Spanish
Record 13 - internal organization data 2010-02-10
Record 13, English
Record 13, Subject field(s)
- Engineering Tests and Reliability
- Man-Made Construction Materials
- Soil Mechanics (Engineering)
- Synthetic Fabrics
Record 13, Main entry term, English
- opening size
1, record 13, English, opening%20size
correct, see observation
Record 13, Abbreviations, English
Record 13, Synonyms, English
- filter opening size 2, record 13, English, filter%20opening%20size
- Of 2, record 13, English, Of
correct, see observation
- Of 2, record 13, English, Of
Record 13, Textual support, English
Record number: 13, Textual support number: 1 CONT
Factors influencing the filtration performance of geotextile can be classified into four categories-external conditions(hydraulic gradient and loading state) ;(bio) chemical conditions of fluent(pH, hardness(e. g. [Fe], [Mn], [Mg], [Ca]), redox potential(Eh) for iron ochre, BOD and COD of water(substrate type/concentration), osmotic pressure and dissolved oxygen) ;the properties of basement material(coefficient of uniformity(Cu), coefficient of gradation(Cc), plastic index(PI), double hydrometer ratio(DHR) for dispersive clay, particle shape and grain hardness for granular soil, compaction degree of soil and saturation degree) ;and the properties of geotextile(filtration opening size(FOS), apparent opening size(AOS), fiber density, textile bulk density(mass/area), porosity, thickness and fiber material)... screen test results clearly indicated that the height of self filtration is proportional to the constriction size(Dc) of granular filter used. Additionally, they suggested the filter opening size value should be within the range between d50 and d80 for linearly graded soil and within the flat range in gap graded soil. 2, record 13, English, - opening%20size
Record number: 13, Textual support number: 1 OBS
Symbol: Of 3, record 13, English, - opening%20size
Record number: 13, Textual support number: 2 OBS
Compare with "apparent opening size (AOS)" and "filtration opening size (FOS)." 3, record 13, English, - opening%20size
Record 13, French
Record 13, Domaine(s)
- Fiabilité, contrôle et essais (Ingénierie)
- Matériaux de construction artificiels
- Mécanique des sols
- Textiles artificiels et synthétiques
Record 13, Main entry term, French
- ouverture de filtration
1, record 13, French, ouverture%20de%20filtration
correct, feminine noun
Record 13, Abbreviations, French
- Of 1, record 13, French, Of
correct, see observation
Record 13, Synonyms, French
- diamètre de filtration 2, record 13, French, diam%C3%A8tre%20de%20filtration
correct, masculine noun
- diamètre d'ouverture de filtration 3, record 13, French, diam%C3%A8tre%20d%27ouverture%20de%20filtration
avoid, see observation, masculine noun
Record 13, Textual support, French
Record number: 13, Textual support number: 1 CONT
Pour les géotextiles utilisés comme filtres, on mesurera par commodité la probabilité de passage des particules de sol d'un diamètre connu. On assimile ainsi le géotextile à un tamis. On enregistre la taille maximale des particules traversant le tamis, mesure assimilée à un diamètre, d'où l'expression «diamètre de filtration». Plusieurs principes et méthodes sont actuellement utilisés pour définir cette caractéristique : tamisage à sec de billes de verre calibrées [...]; tamisage à sec de particules de sol [...]; tamisage de sol à l'humide [...]; tamisage de sol sous régime hydrodynamique. 4, record 13, French, - ouverture%20de%20filtration
Record number: 13, Textual support number: 2 CONT
Géotextiles. Détermination du diamètre d'ouverture de filtration. [Norme ONGC (Office des normes générales du Canada) 148.1, septembre 1994.] 3, record 13, French, - ouverture%20de%20filtration
Record number: 13, Textual support number: 1 OBS
L'ouverture Of de filtration du géotextile est conventionnellement exprimée par le d95 du sol. 1, record 13, French, - ouverture%20de%20filtration
Record number: 13, Textual support number: 2 OBS
On parle d'ouverture de filtration déterminée par tamisage à sec (en anglais : AOS; apparent opening size) et d'ouverture de filtration déterminée par tamisage hydrodynamique (en anglais : FOS; filtration opening size). L'expression «diamètre d'ouverture de filtration» est pléonastique. Renseignements obtenus d'un professeur de l'École polytechnique de Montréal, qui donne un cours intitulé «Mécanique des sols expérimentale». 5, record 13, French, - ouverture%20de%20filtration
Record 13, Spanish
Record 13, Textual support, Spanish
Record 14 - internal organization data 2008-10-10
Record 14, English
Record 14, Subject field(s)
- Geology
- Hydrology and Hydrography
Record 14, Main entry term, English
- sedimentary regime
1, record 14, English, sedimentary%20regime
correct, see observation
Record 14, Abbreviations, English
Record 14, Synonyms, English
- sediment regime 2, record 14, English, sediment%20regime
correct
Record 14, Textual support, English
Record number: 14, Textual support number: 1 CONT
The sediment regime may be defined as the quantity, size, transport, sorting, and distribution of sediments. The sediment regime may be influenced by the proximity of sediment sources, the hydrologic regime, and valley, floodplain and stream morphology. 3, record 14, English, - sedimentary%20regime
Record number: 14, Textual support number: 2 CONT
For large-scale projects, or projects that affect specific habitats, other information may prove necessary, such as bathymetry, granulometry, temperature, dissolved oxygen concentration, salinity, sedimentary regime, dynamics and circulation of currents, drainage, ice regime, areas sensitive to erosion, hydrodynamic and hydraulic conditions, human activities, etc. 4, record 14, English, - sedimentary%20regime
Record number: 14, Textual support number: 1 OBS
sedimentary regime: term used at Natural Resources Canada - Earth Sciences Sector. 5, record 14, English, - sedimentary%20regime
Record 14, French
Record 14, Domaine(s)
- Géologie
- Hydrologie et hydrographie
Record 14, Main entry term, French
- régime sédimentaire
1, record 14, French, r%C3%A9gime%20s%C3%A9dimentaire
correct, masculine noun
Record 14, Abbreviations, French
Record 14, Synonyms, French
- type de sédimentation 2, record 14, French, type%20de%20s%C3%A9dimentation
correct, see observation, masculine noun
Record 14, Textual support, French
Record number: 14, Textual support number: 1 CONT
Pour des projets de grande envergure, ou touchant des habitats particuliers, d'autres informations pourraient s'avérer nécessaires telles que la bathymétrie, la granulométrie, la température, le taux d'oxygène dissous, la salinité, le régime sédimentaire, la dynamique et la circulation des courants, le drainage, le régime des glaces, les zones sensibles à l'érosion, les conditions hydrodynamiques et hydrauliques, les activités anthropiques, etc. 3, record 14, French, - r%C3%A9gime%20s%C3%A9dimentaire
Record number: 14, Textual support number: 1 OBS
type de sédimentation : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre. 4, record 14, French, - r%C3%A9gime%20s%C3%A9dimentaire
Record 14, Spanish
Record 14, Textual support, Spanish
Record 15 - internal organization data 2003-12-15
Record 15, English
Record 15, Subject field(s)
- Ecology (General)
Record 15, Main entry term, English
- aquatic organism
1, record 15, English, aquatic%20organism
correct
Record 15, Abbreviations, English
Record 15, Synonyms, English
- water organism 2, record 15, English, water%20organism
correct, see observation
Record 15, Textual support, English
Record number: 15, Textual support number: 1 CONT
Ohio’s program creates measurable standards by assigning every water body at least one beneficial use. Beneficial use designations describe existing or potential uses of water bodies. They take into consideration the use and value of public water supplies, protection and propagation of aquatic life, recreation in and on the water, and agricultural, industrial and other purposes. ... Aquatic Life Habitat Use Designation. Warmwater Habitat (WWH) Capable of supporting and maintaining a balanced community of warmwater aquatic organisms. This is the most widely applied use designation assigned to warmwater rivers and streams in Ohio. 3, record 15, English, - aquatic%20organism
Record number: 15, Textual support number: 2 CONT
[A] critical environmental factor that directly influences the gas impact on water organisms is the concentration of dissolved oxygen. 2, record 15, English, - aquatic%20organism
Record number: 15, Textual support number: 1 OBS
Used in the plural, the concrete expression "aquatic organisms" can be replaced by the abstract concept of "aquatic life" (q.v.). One can also be more specific and use the expression "aquatic fauna and flora." 4, record 15, English, - aquatic%20organism
Record number: 15, Textual support number: 2 OBS
water organisms: This expression is usually specified by an adjective, e.g. ballast water organisms, cold water organisms, deep water organisms, fresh water organisms, pond water organisms, salt water organisms, warm water organisms, waste water organisms, etc. 4, record 15, English, - aquatic%20organism
Record 15, Key term(s)
- aquatic organisms
- water organisms
Record 15, French
Record 15, Domaine(s)
- Écologie (Généralités)
Record 15, Main entry term, French
- organisme aquatique
1, record 15, French, organisme%20aquatique
correct, masculine noun
Record 15, Abbreviations, French
Record 15, Synonyms, French
Record 15, Textual support, French
Record number: 15, Textual support number: 1 CONT
Apprécier le risque écotoxicologique lié à la contamination des milieux aquatiques par les pesticides demande de pouvoir d'une part, mesurer les niveaux de contamination des milieux et des organismes exposés, et, d'autre part, caractériser les impacts de ces substances sur les organismes aquatiques. 2, record 15, French, - organisme%20aquatique
Record number: 15, Textual support number: 1 OBS
Pour désigner l'ensemble des organismes aquatiques on peut employer l'expression abstraite «vie aquatique», ou l'expression descriptive «faune et flore aquatiques». Voir aussi les fiches pour «vie aquatique», «faune aquatique» et «flore aquatique». 3, record 15, French, - organisme%20aquatique
Record 15, Key term(s)
- organismes aquatiques
Record 15, Spanish
Record 15, Textual support, Spanish
Record 16 - internal organization data 2003-06-23
Record 16, English
Record 16, Subject field(s)
- Hydrology and Hydrography
Record 16, Main entry term, English
- saturation value
1, record 16, English, saturation%20value
correct
Record 16, Abbreviations, English
Record 16, Synonyms, English
Record 16, Textual support, English
Record number: 16, Textual support number: 1 CONT
Water may absorb oxygen from the atmosphere when the oxygen in solution falls below saturation... Unpolluted water maintains in solution the maximum quantity of dissolved oxygen. The saturation value is a function of temperature and the concentration of dissolved substances, such as chlorides. 2, record 16, English, - saturation%20value
Record 16, French
Record 16, Domaine(s)
- Hydrologie et hydrographie
Record 16, Main entry term, French
- valeur à la saturation
1, record 16, French, valeur%20%C3%A0%20la%20saturation
correct, feminine noun
Record 16, Abbreviations, French
Record 16, Synonyms, French
- valeur de saturation 2, record 16, French, valeur%20de%20saturation
feminine noun
Record 16, Textual support, French
Record number: 16, Textual support number: 1 CONT
L'habitude qui s'est instaurée de comparer la teneur d'une eau naturelle en oxygène à celle qu'elle aurait si elle pouvait en contenir le plus a donné naissance à la notion de teneur à la saturation. [Olszewski] a montré que la valeur théorique ne correspondait pas toujours à la valeur réelle obtenue en mélangeant intimement l'air atmosphérique et l'eau naturelle (...) La notion de saturation doit alors être remplacée par celle de norme, [et] la valeur à la saturation par des points de norme (ou mieux valeur normale). 1, record 16, French, - valeur%20%C3%A0%20la%20saturation
Record 16, Spanish
Record 16, Campo(s) temático(s)
- Hidrología e hidrografía
Record 16, Main entry term, Spanish
- valor de saturación
1, record 16, Spanish, valor%20de%20saturaci%C3%B3n
correct, masculine noun
Record 16, Abbreviations, Spanish
Record 16, Synonyms, Spanish
Record 16, Textual support, Spanish
Record 17 - internal organization data 1999-09-15
Record 17, English
Record 17, Subject field(s)
- Biochemistry
- Biotechnology
Record 17, Main entry term, English
- fermenter control
1, record 17, English, fermenter%20control
correct
Record 17, Abbreviations, English
Record 17, Synonyms, English
Record 17, Textual support, English
Record number: 17, Textual support number: 1 DEF
Various means used to control fermenters. 1, record 17, English, - fermenter%20control
Record number: 17, Textual support number: 1 OBS
Fermenter control includes :(1) control of temperature, pressure and pH by closed loop feedback;(2) control of foaming by on/off addition of an antifoam;(3) automatic sequencing to ensure correct adherence to protocols for sterilization, cleaning and filling, as well as harvest operations;(4) control of dissolved oxygen concentration;(5) automatic feeding of nutrients in response to dissolved oxygen concentration or biomass level, or to feed nutrients automatically according to a preset schedule;(6) control of the respiratory quotient in order to optimize cell mass production. 1, record 17, English, - fermenter%20control
Record 17, French
Record 17, Domaine(s)
- Biochimie
- Biotechnologie
Record 17, Main entry term, French
- contrôle de fermenteur
1, record 17, French, contr%C3%B4le%20de%20fermenteur
correct, masculine noun
Record 17, Abbreviations, French
Record 17, Synonyms, French
Record 17, Textual support, French
Record number: 17, Textual support number: 1 DEF
Mécanisme qui permet de suivre et de réguler les paramètres des fermenteurs. 2, record 17, French, - contr%C3%B4le%20de%20fermenteur
Record 17, Spanish
Record 17, Textual support, Spanish
Record 18 - internal organization data 1986-04-04
Record 18, English
Record 18, Subject field(s)
- Environmental Studies and Analyses
- Biochemistry
Record 18, Main entry term, English
- test medium
1, record 18, English, test%20medium
correct
Record 18, Abbreviations, English
Record 18, Synonyms, English
Record 18, Textual support, English
Record number: 18, Textual support number: 1 CONT
[NF T90-301 : Testing of water. Determination of the inhibition of the mobility of Daphnia Magna. ] The test medium shall be prepared from the specified quantities of reagents of recognized analytical grade.... The test medium shall be aerated until the dissolved oxygen concentration has reached saturation and the pH has stabilized. 2, record 18, English, - test%20medium
Record 18, French
Record 18, Domaine(s)
- Études et analyses environnementales
- Biochimie
Record 18, Main entry term, French
- milieu d'essai
1, record 18, French, milieu%20d%27essai
correct, masculine noun
Record 18, Abbreviations, French
Record 18, Synonyms, French
Record 18, Textual support, French
Record number: 18, Textual support number: 1 CONT
[AFNOR T90-301. Essais des eaux]. Préparer le milieu d'essai à partir de quantités définies de réactifs de pureté analytique reconnue. 2, record 18, French, - milieu%20d%27essai
Record 18, Spanish
Record 18, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
GCtranslate (available on the Government of Canada network only)
Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.
Writing tools
The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies
Access Translation Bureau glossaries and vocabularies.
- Date Modified:


