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Mar 17, 2020 15:29
4 yrs ago
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English term
LL50/EL50
English to French
Tech/Engineering
Engineering (general)
FDS produit chimique
LL50:
Loading rate of test substance resulting in 50% mortality.
EL50:
Effect loading doses resulting in 50% mortality.
Loading rate of test substance resulting in 50% mortality.
EL50:
Effect loading doses resulting in 50% mortality.
Reference comments
4 hrs
Reference:
Analysis of Sublethal Toxicity in Developing Zebrafish Embryos Exposed to ...
Analysis of Sublethal Toxicity in Developing Zebrafish Embryos Exposed to a Range of Petroleum Substances
...
Figure 6
.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6849576/bin/ETC...
Toxic unit contribution calculation of petroleum substance fractions using PETROTOX. The toxic unit is the concentration in water divided by the observed endpoint (toxic unit = C w/LL50, where LL50 is the loading rate of a test substance resulting in 50% mortality). Each section of the chart is equal to the corresponding fraction's contribution to the observed toxicity (effect loading, 50% [EL50]). CRGO = cracked gas oil; SRGO = straight run gas oil; VHGO = vacuum hydrocracked gas oil.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6849576/figure/...
...
Figure 6
.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6849576/bin/ETC...
Toxic unit contribution calculation of petroleum substance fractions using PETROTOX. The toxic unit is the concentration in water divided by the observed endpoint (toxic unit = C w/LL50, where LL50 is the loading rate of a test substance resulting in 50% mortality). Each section of the chart is equal to the corresponding fraction's contribution to the observed toxicity (effect loading, 50% [EL50]). CRGO = cracked gas oil; SRGO = straight run gas oil; VHGO = vacuum hydrocracked gas oil.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6849576/figure/...
Discussion
EL50 = dose suivie d'effets néfastes pour 50% de la population exposée
LL50 = dose létale pour 50% de la population exposée
Je crois que l'on peut parler de dose létale DL/dose efficace DE, cf. https://books.google.com.ar/books?id=6piwLdUbAT0C&pg=PT206&l...
Remarque: il doit y avoir une erreur dans le texte de référence du Asker car pour EL et LL, la dose est mortelle...
EL50 = Dose à laquelle 50% de la population exposée ressent des effets désagréables
LL50 = Dose à laquelle 50% de la population exposée crève