| Main Title |
Preparation of Benthic Substrates for Sediment Toxicity Testing. |
| Author |
Ditsworth, G. R. ;
Schults, D. W. ;
Jones, J. K. P. ;
|
| CORP Author |
Environmental Research Lab.-Narragansett, Newport, OR. Mark O. Hatfield Marine Science Center.;Environmental Research Lab., Narragansett, RI. |
| Publisher |
c15 Mar 90 |
| Year Published |
1990 |
| Report Number |
EPA/600/J-90/398 ;ERLN-N077; |
| Stock Number |
PB91-171546 |
| Additional Subjects |
Sediments ;
Water pollution effects ;
Toxicity ;
Benthos ;
Sediment-Water interfaces ;
Bioassay ;
Experimental design ;
Design criteria ;
Sample preparation ;
Reprints ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB91-171546 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
9p |
| Abstract |
A jar-rolling apparatus was constructed to prepare test substrates using sediments spiked with laboratory chemicals, the toxicity of which were assessed with the Rhepoxynius abronius bioassay. Test sediments were mixed by rolling them for several hours in one-gallon glass jars. Mixing was considered adequate based on the analytical results of sediment samples that were collected at locations along the longitudinal axis within each horizontally lying jar immediately after rolling. However, because comparative standards did not exist, definitive conclusions of mixing thoroughness could not be drawn. Coefficients of variation, used to assess mixing within jars, were 11.5% or less (mean 5.1%). Mixing was not significantly different among replicated jars but, in some jars, was significantly different among within-jar sample locations. |
| Supplementary Notes |
Pub. in Environmental Toxicology and Chemistry, v9 p1523-1529 1990. Sponsored by Environmental Research Lab., Narragansett, RI. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Preparation of Benthic Substrates for Sediment Toxicity Testing. |
| Category Codes |
68D; 57H; 57Y |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/05 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
116426000 |
| Origin |
NTIS |
| Type |
CAT |
