Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-4
pubmed:dateCreated
1990-7-17
pubmed:abstractText
The effect of decreasing the number of animals on the accuracy of estimated concentration-time-mortality relationships and the LC50 values derived from these was investigated by means of simulation methods. Studies of NH3, Cl2, H2S, and COCl2 were made using 5 rats per sex per group. Mortality rates were analysed in 500 new data sets obtained by randomly removing 4 rats/sex/group from the original data sets. It was concluded that the concentration-time-mortality relationship and the LC50 values can be determined over a 5-10-fold time range using one rat/sex/group. The resulting 5 and 95 percentiles compare favourably with the 90% confidence limits when determining a LC50 according to OECD guideline 403. When using concentration-time-mortality relationships, additional information can be obtained which can be used in inhalation hazard risk assessment.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0232-1513
pubmed:author
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
62-6
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Determination of concentration-time-mortality relationships versus LC50s according to OECD guideline 403.
pubmed:affiliation
TNO-CIVO, AJ Zeist, The Netherlands.
pubmed:publicationType
Journal Article