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CE50 [5 records]
Record 1 - external organization data 2011-03-21
Record 1, English
Record 1, Subject field(s)
- Scientific Measurements and Analyses
- Chemistry
- Compartment - Canadian Nuclear Safety Commission
Record 1, Main entry term, English
- effective concentration 50
1, record 1, English, effective%20concentration%2050
see observation
Record 1, Abbreviations, English
- EC50 1, record 1, English, EC50
see observation
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The toxicity tests must follow Environment Canada protocols [1 to 10] and be of the quality to meet Canadian Council of Ministers of the Environment (CCME) primary study criteria. The LC50/EC50s and LC25/EC25s are to be calculated and reported. 1, record 1, English, - effective%20concentration%2050
Record number: 1, Textual support number: 1 OBS
effective concentration 50; EC50: The number 50 is subscripted. 1, record 1, English, - effective%20concentration%2050
Record 1, French
Record 1, Domaine(s)
- Mesures et analyse (Sciences)
- Chimie
- Tiroir - Commission canadienne de sûreté nucléaire
Record 1, Main entry term, French
- concentration efficace 50
1, record 1, French, concentration%20efficace%2050
see observation, feminine noun
Record 1, Abbreviations, French
- CE50 1, record 1, French, CE50
see observation, feminine noun
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Les essais de toxicité effectués doivent suivre les protocoles d’Environnement Canada [1 à 10] et leur qualité doit satisfaire aux critères d’étude du Conseil canadien des ministres de l’Environnement (CCME). Les CL50/CE50 et CL25/CE25 doivent être calculés et signalés. 1, record 1, French, - concentration%20efficace%2050
Record number: 1, Textual support number: 1 OBS
concentration efficace 50; CE50 : Le nombre 50 se place en indice. 1, record 1, French, - concentration%20efficace%2050
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2010-09-13
Record 2, English
Record 2, Subject field(s)
- Environmental Studies and Analyses
- Scientific Measurements and Analyses
Record 2, Main entry term, English
- median effective concentration
1, record 2, English, median%20effective%20concentration
correct
Record 2, Abbreviations, English
- EC50 1, record 2, English, EC50
correct, see observation
Record 2, Synonyms, English
- effective concentration fifty 2, record 2, English, effective%20concentration%20fifty
correct
- effective concentration 50% 2, record 2, English, effective%20concentration%2050%25
correct
- effective concentration 2, record 2, English, effective%20concentration
correct
- EC50 2, record 2, English, EC50
correct, see observation
- EC50 2, record 2, English, EC50
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The statistically derived concentration of a toxicant that can be expected to cause a defined non-lethal effect in 50 per cent of the given population of organisms under defined conditions. 3, record 2, English, - median%20effective%20concentration
Record number: 2, Textual support number: 1 OBS
EC50 4, record 2, English, - median%20effective%20concentration
Record 2, French
Record 2, Domaine(s)
- Études et analyses environnementales
- Mesures et analyse (Sciences)
Record 2, Main entry term, French
- concentration efficace moyenne
1, record 2, French, concentration%20efficace%20moyenne
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- concentration efficace 50 1, record 2, French, concentration%20efficace%2050
correct, feminine noun
- concentration efficace 50 % 1, record 2, French, concentration%20efficace%2050%20%25
correct, feminine noun
- CE 50 2, record 2, French, CE%2050
correct, feminine noun
- CE 50 2, record 2, French, CE%2050
- teneur efficace moyenne 3, record 2, French, teneur%20efficace%20moyenne
correct, feminine noun, less frequent
- TE 50 3, record 2, French, TE%2050
feminine noun
- CE50 1, record 2, French, CE50
correct, see observation, feminine noun
- TE 50 3, record 2, French, TE%2050
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Dans un essai biologique, concentration à laquelle se produit chez 50 % de la population, pour une durée d’exposition donnée, un effet décelable. 1, record 2, French, - concentration%20efficace%20moyenne
Record number: 2, Textual support number: 1 CONT
Détermination de la concentration qui, dans les conditions standard, inhibe la locomotion de 50 % des individus d’une population de Daphnies jeunes en 24 ou 48 heures. Ces «concentrations efficaces» sont dénommées respectivement CE 50 - 24 h et CE 50 - 48 h. 4, record 2, French, - concentration%20efficace%20moyenne
Record number: 2, Textual support number: 1 OBS
CE50 5, record 2, French, - concentration%20efficace%20moyenne
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Estudios y análisis del medio ambiente
- Medición y análisis (Ciencias)
Record 2, Main entry term, Spanish
- concentración efectiva media
1, record 2, Spanish, concentraci%C3%B3n%20efectiva%20media
correct, feminine noun
Record 2, Abbreviations, Spanish
- CE50 1, record 2, Spanish, CE50
correct, feminine noun
Record 2, Synonyms, Spanish
- concentración efectiva de 50% 2, record 2, Spanish, concentraci%C3%B3n%20efectiva%20de%2050%25
correct, feminine noun
- CE50 2, record 2, Spanish, CE50
correct, feminine noun
- CE50 2, record 2, Spanish, CE50
- concentración efectiva mediana 3, record 2, Spanish, concentraci%C3%B3n%20efectiva%20mediana
correct, feminine noun
- EC50 4, record 2, Spanish, EC50
correct, feminine noun
- EC50 4, record 2, Spanish, EC50
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Concentración estadísticamente derivada de un tóxico que, según se puede pronosticar, causará un efecto letal no definido en 50% de una población dada de organismos bajo condiciones definidas. 1, record 2, Spanish, - concentraci%C3%B3n%20efectiva%20media
Record number: 2, Textual support number: 1 CONT
La concentración efectiva demuestra que causa una disminución de luz del 50%, conocida como EC50, se usa como indicador de la medida de ecotoxicidad. 5, record 2, Spanish, - concentraci%C3%B3n%20efectiva%20media
Record number: 2, Textual support number: 2 CONT
Según este bioensayo de luminiscencia se considera que un residuo es ecotóxico si su lixiviado presenta una EC50 (15°C, 15 min.) inferior o igual a 3.000 mg/l. 5, record 2, Spanish, - concentraci%C3%B3n%20efectiva%20media
Record 3 - external organization data 2004-03-17
Record 3, English
Record 3, Subject field(s)
- Scientific Information
- Toxicology
- Compartment - Canadian Nuclear Safety Commission
Record 3, Main entry term, English
- toxicity test data 1, record 3, English, toxicity%20test%20data
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Calculate LC/EC50s and LC/EC25s from the various toxicity test data. 1, record 3, English, - toxicity%20test%20data
Record 3, French
Record 3, Domaine(s)
- Information scientifique
- Toxicologie
- Tiroir - Commission canadienne de sûreté nucléaire
Record 3, Main entry term, French
- données d’essais de toxicité
1, record 3, French, donn%C3%A9es%20d%26rsquo%3Bessais%20de%20toxicit%C3%A9
feminine noun, plural
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Calculer les CL/CE50 et les CL/CE25 à partir de différentes données d’essais de toxicité. 1, record 3, French, - donn%C3%A9es%20d%26rsquo%3Bessais%20de%20toxicit%C3%A9
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2004-02-16
Record 4, English
Record 4, Subject field(s)
- Environmental Studies and Analyses
- Toxicology
Record 4, Main entry term, English
- effect concentration
1, record 4, English, effect%20concentration
correct
Record 4, Abbreviations, English
- EC 1, record 4, English, EC
correct
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 OBS
EC; effect concentration: This [toxicological value] is generally followed by a number, which indicates the percentage of a population which experience the effect. 2, record 4, English, - effect%20concentration
Record number: 4, Textual support number: 2 OBS
Typical levels are EC 10, EC 25, EC 50, EC 75, EC 100. NOEC: No observable effect concentration; LOEC: Lowest observable effect concentration. 3, record 4, English, - effect%20concentration
Record number: 4, Textual support number: 1 CONT
Developing Hormosira banksii embryos, used as bioassays in toxicity studies, identified ammonium as a toxicant in secondary treated sewage effluent discharged at Boags Rocks, Victoria, Australia. Ammonium did not affect fertilization but had a significant effect on germination at 48 h and cell division at 72 h with most damage occurring in the first 48 h. Ammonium showed a similar effect as whole effluent (when expressed as mg N l-1 ammonium), sampled in June, September and November 1997, on developing H. banksii embryos. This similarity is further confirmed with comparable EC50 (concentration causing an effect on 50% of the population tested) and LOEC (lowest observable effect concentration) values. Mean EC50 values for the ammonium bioassays were 3.19 mg N l-1 for germination and 6.14 mg N l-1 for cell division. 4, record 4, English, - effect%20concentration
Record number: 4, Textual support number: 1 PHR
Effect concentration low (ECL), median effect concentration (EC50), lowest observable effect concentration (LOEC), no-observed-effect concentration (NOEC), threshold effect concentration (TEC). 5, record 4, English, - effect%20concentration
Record 4, French
Record 4, Domaine(s)
- Études et analyses environnementales
- Toxicologie
Record 4, Main entry term, French
- concentration effective
1, record 4, French, concentration%20effective
correct, feminine noun
Record 4, Abbreviations, French
- CE 1, record 4, French, CE
correct, feminine noun
Record 4, Synonyms, French
- concentration entraînant un effet 2, record 4, French, concentration%20entra%C3%AEnant%20un%20effet
feminine noun
- concentration produisant un effet 3, record 4, French, concentration%20produisant%20un%20effet
feminine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
Concentration entraînant un effet à long terme. 2, record 4, French, - concentration%20effective
Record number: 4, Textual support number: 2 CONT
Concentration minimale produisant un effet. 3, record 4, French, - concentration%20effective
Record number: 4, Textual support number: 3 CONT
Évaluation du rapport dose(concentration)-réponse(effet). L'objectif est de déterminer la concentration en dessous de laquelle la substance ne devrait pas avoir d’effets indésirables sur la composante de l'environnement considérée. Cette concentration est dénommée concentration prévue sans effet(PNEC). Toutefois, il se peut que dans certains cas il ne soit pas possible d’établir une PNEC et il faut alors effectuer une estimation qualitative de la relation dose(concentration)-réponse(effet). Pour calculer la PNEC, on peut appliquer un facteur d’évaluation aux valeurs provenant des essais effectués sur les organismes, par exemple à la DL50(dose létale médiane), à la CL50(concentration létale médiane), à la CE50(concentration effective médiane), à la CI50(concentration provoquant cinquante pour cent d’inhibition d’un paramètre donné, par exemple la croissance), au NOEL(C)(dose(concentration) sans effet observé), au LOEL(C)(dose(concentration) entraînant l'effet observé le plus faible) ou d’autres méthodes appropriées. 4, record 4, French, - concentration%20effective
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 1996-04-17
Record 5, English
Record 5, Subject field(s)
- Environmental Studies and Analyses
Record 5, Main entry term, English
- reproduction endpoint
1, record 5, English, reproduction%20endpoint
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
Assesses effects of critical Great Lakes pollutants on human and animal ovaries, eggs, sperms and embryonic development. 1, record 5, English, - reproduction%20endpoint
Record 5, French
Record 5, Domaine(s)
- Études et analyses environnementales
Record 5, Main entry term, French
- résultat relatif à la reproduction
1, record 5, French, r%C3%A9sultat%20relatif%20%C3%A0%20la%20reproduction
proposal, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- résultat relatif aux fonctions reproductrices 1, record 5, French, r%C3%A9sultat%20relatif%20aux%20fonctions%20reproductrices
proposal, masculine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 OBS
résultat [endpoint] : variable(par ex. le délai, la réaction des organismes soumis à l'essai) qui indique la fin de l'essai; mesure ou valeur dérivée caractérisant l'effet de la substance soumise à l'essai(par ex. CE50, CL50). 2, record 5, French, - r%C3%A9sultat%20relatif%20%C3%A0%20la%20reproduction
Record 5, Spanish
Record 5, Textual support, Spanish
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