ETX 1.3a: A program to calculate confidence limits for hazardous concentrations based on small samples of toxicity data

2.50
Hdl Handle:
http://hdl.handle.net/10029/255630
Title:
ETX 1.3a: A program to calculate confidence limits for hazardous concentrations based on small samples of toxicity data
Authors:
Aldenberg T
Other Titles:
[ETX 1.3a: Een computerprogramma voor het berekenen van betrouwbaarheidsgrenzen voor schadelijke concentraties, op basis van kleine steekproeven van toxiciteitsgegevens.]
Abstract:
ETX (EcoToX) is a computer program for MS-DOS computers for the extrapolation of laboratory toxicity data to environmental concentrations that are safe for the majority of the biological species. It is based on the theory of Van Straalen and Denneman (1989), as modified by Aldenberg and Slob (1993). The estimates of the so-called Hazardous Concentrations can be given on two levels of confidence: a median estimate that in the long run will equally often overestimate, as well as underestimate, the true HC5 (95% species protection), and a 95% confidence underestimate that is almost surely on the safe side. Data can be entered interactively in ETX and saved to files. One can also compose data files with a text editor and read them in with ETX. Next to the computation of Hazardous Concentrations, one can calculate the hazard to the biological community at given levels of exposure, i.e. environmental concentrations. All results can be saved to files, for later printout, or study.<br>
Publisher:
Rijksinstituut voor Volksgezondheid en Milieu RIVM
Issue Date:
31-May-1993
Additional Links:
http://www.rivm.nl/bibliotheek/rapporten/719102015.html; http://www.rivm.nl/bibliotheek/rapporten/719102015.pdf
Type:
Onderzoeksrapport
Language:
en
Sponsors:
RIVM
Appears in Collections:
RIVM official reports

Full metadata record

DC FieldValue Language
dc.contributor.authorAldenberg T-
dc.date.accessioned2013-09-17T23:00:11-
dc.date.issued1993-05-31-
dc.identifier719102015-
dc.description.abstractETX (EcoToX) is a computer program for MS-DOS computers for the extrapolation of laboratory toxicity data to environmental concentrations that are safe for the majority of the biological species. It is based on the theory of Van Straalen and Denneman (1989), as modified by Aldenberg and Slob (1993). The estimates of the so-called Hazardous Concentrations can be given on two levels of confidence: a median estimate that in the long run will equally often overestimate, as well as underestimate, the true HC5 (95% species protection), and a 95% confidence underestimate that is almost surely on the safe side. Data can be entered interactively in ETX and saved to files. One can also compose data files with a text editor and read them in with ETX. Next to the computation of Hazardous Concentrations, one can calculate the hazard to the biological community at given levels of exposure, i.e. environmental concentrations. All results can be saved to files, for later printout, or study.<br>en
dc.description.sponsorshipRIVM-
dc.formatapplication/pdf-
dc.format.extent56 p-
dc.format.extent3244 kb-
dc.language.isoen-
dc.publisherRijksinstituut voor Volksgezondheid en Milieu RIVM-
dc.relation.ispartofRIVM Rapport 719102015-
dc.relation.urlhttp://www.rivm.nl/bibliotheek/rapporten/719102015.html-
dc.relation.urlhttp://www.rivm.nl/bibliotheek/rapporten/719102015.pdf-
dc.subject20nl
dc.subjecttoxische stoffenen
dc.subjectecotoxicologieen
dc.subjectnoecen
dc.subjectstatistische extrapolatie; schadelijke milieuconcentratiesen
dc.subjectnormstellingen
dc.subjectvan straalen methodeen
dc.subjectlogistische verdelingen
dc.subjecttoxic substancesen
dc.subjectecotoxicologyen
dc.subjectnoec; statistical extrapolationen
dc.subjecthazardous concentrationsen
dc.subjectenvironmental standardsen
dc.subjectvan straalen methoden
dc.subjectlogistic distributionen
dc.titleETX 1.3a: A program to calculate confidence limits for hazardous concentrations based on small samples of toxicity dataen
dc.title.alternative[ETX 1.3a: Een computerprogramma voor het berekenen van betrouwbaarheidsgrenzen voor schadelijke concentraties, op basis van kleine steekproeven van toxiciteitsgegevens.]nl
dc.typeOnderzoeksrapport-
dc.date.updated2013-09-17T21:00:16Z-
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