Record Display for the EPA National Library Catalog


Main Title Comparative Toxicity of Chemicals to Earthworms.
Author Callahan, C. A. ; Shirazi, M. A. ; Neuhauser., E. F. ;
CORP Author Corvallis Environmental Research Lab., OR. ;Niagara Mohawk Power Corp., Syracuse, NY.
Publisher c1994
Year Published 1994
Report Number EPA/600/J-94/161;
Stock Number PB94-160462
Additional Subjects Toxicity ; Worms ; Chemical compounds ; Tests ; Mortality ; Species diversity ; Response ; Sensitivity ; Phenols ; Amines ; Benzene ; Hydrocarbons ; Phythalates ; Weibull density functions ; Reprint ; Earthworms ; Eisentia fetida ; Allolobophora tuberculata ; Eudrilus eugeniae ; LC50 ; Metallic salts
Library Call Number Additional Info Location Last
NTIS  PB94-160462 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
The concentration-response (mortality) relationships of four species of earthworms, Eisentia fetida, Allolobophora tuberculata, Eudrilus eugeniae, and Perionyx excavatus are summarized for 62 chemicals and two test protocols. A Weibull function is used to summarize these data for each chemical in terms of sensitivity and toxicity, in addition to the LC50. The estimation of the Weibull parameters a and k summarize the entire concentration-response relationship. This technique should be applicable to a variety of testing protocols with different species whenever the goal is summarizing the shape of the concentration-response curves to fully evaluate chemical impact on organisms. In some cases for these data four orders of magnitude separate LC50s of the soil test and the contact test for the same chemical and species. All four species appear to be similar in range of toxicity and tolerance to these chemicals, suggesting that Eisenia fetida may be representative of these four species and these chemicals.